Biochemicals - Isogen Life Science · Biochemicals Biochemicals w w w. u s b w e b . c o m 5 In...

Biochemicals

Biochemicals

Biochemicals ■ Acrylamides

■ ACS Biochemicals

■ Agaroses

■ Albumins

■ Amino Acids

■ Antibiotics

■ Buffers

■ Carbohydrates

■ Coenzymes

■ Detergents

■ Proteins

■ Stabilizers

■ Substrates

■ Sugars

■ Ultrapures

■ Vitamins

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sBiochemicals

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Formulas and formula weights are provided for compounds having a specific known structure. The values used to calculate formula weights are taken from the 2001 Table of Atomic Weights, (2003) Pure Appl. Chem., 75, 1107-1122.

To simplify grade selection for customers the following grade definitions are provided. USB has selected grade names which are self explanatory, as well as those which reflect various industry standards. If any changes are noticed in a familiar grade designation for a given chemical, it is a result of a change to the grade definition rather than a change in the quality of the chemical.

USB Ultrapures are specially selected biochemicals and reagents of high quality, suitable for use in numerous biotechnology applications. These reagents meet stringent requirements, such as adherence to compendial references where applicable, have ultra-low levels of trace metal contamination, and low levels of DNase, RNase, protease and endotoxins where applicable.

Reference Constants for Nucleotides and NucleosidesValues for reference constants are taken from the literature. They are useful in determining the concentration of stock solutions prepared in the laboratory.

DBR: “Data for Biochemical Research” Dawson, R. M. C., Elliot, D. C., Elliot, W. H. , Jones, K. M., (1986) Oxford Science Publications.

NRC: “Specifications and Criteria for Biochemical Compounds,” (1972) National Academy of Sciences, Washington, D.C. 3rd edition.

Biochemical Grade DefinitionsACS Reagent Grade: Meets the limits of purity for inorganic chemicals as established by the American Chemical Society.

CP Grade (Chemically Pure): Meets the requirements of the Food Chemicals Codex, but not intended for food use.

Genetic Performance Certified™ (GPC): Functionally tested in specific molecular biology applications (e.g. nucleic acid recovery, in-gel restriction enzyme digestion or ligation) to insure optimal agarose performance.

Hi-Res™: Agaroses especially selected for high resolution of samples.

USBioAnalyzed: Meets USP or NF chemical testing requirements but is not sold as USP or NF Grade; USP and NF Grades (United States Pharmacopeia and National Formulary) must meet the requirements of those compendia and will fall under this category.

USP Grade: Meets the requirements of the U.S. Pharmacopeia.

NF Grade: Meets the requirements of the National Formulary.

MB Grade (Molecular Biology): Applies to products that are suitable for a variety of Molecular Biology applications including those which require ultra-low levels of trace metal contamination, and low levels of DNase, RNase and protease. These products are also functionally tested when applicable.

Reagent Grade: Suitable for use in general laboratory applications; meets in-house established limits in the absence of any compendial reference for the given compound. In-house established limits and their associated test methods are in many cases derived from common compendial methods such as USP, NF, ACS, etc.

High Purity Grade: Generally meets more stringent requirements than Reagent Grade products, such as higher assay limits or lower levels of trace contaminants. When available, this grade is more suitable as a reference material than the Reagent Grade.

The Biochemicals listed in this section are available in bulk quantities. Please call to inquire on sizes and pricing.

USB believes ISO 9001 certification demonstrates our commitment to quality throughout all segments of the company. Customers can be assured that the employees of USB take quality very seriously. Quality products and services are obtained through the understanding, participation and commitment of all USB employees.

A Few Notes About USB Biochemicals

Biochemicals

Biochemicals

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Ac-Co A ..........Acetyl-coenzyme A iCDH ................. Isocitrate dehydrogenaseAc-P ...............Acetyl phosphate IDP ................... Inosine-5'-diphosphateAChE ..............Acetylcholinesterase IMP ................... Inosine-5'-monophosphateADH ...............Alcohol dehydrogenase INT ................... Iodonitrotetrazolium violetADP ...............Adenosine-5'-diphosphate ITP.................... Inosine-5'-triphosphateALD ................Fructose-1, 6-diphosphate aldolase dITP ..................2'-Deoxyinosine-5'-triphosphateAIDH...............Aldehyde dehydrogenase ddITP ................2',3'-Dideoxyinosine-5'-triphosphateAMP ...............Adenonsine-5'-monophosphate LDH .................. L-Lactate dehydrogenaseD-AOD ............D-Amino acid oxidase D-LDH ...............D-Lactate dehydrogenaseL-AOD ............L-Amino acid oxidase MDH ................. L-Malate dehydrogenaseAP ..................Alkaline phosphatase MK ...................MyokinaseASOD .............Ascorbate oxidase MPI ...................Mannosephosphate isomeraseATP ................Adenosine-5'-triphosphate MUTARO............MutarotasedATP ..............2'-Deoxyadenosine-5'-triphosphate NAD+ ...............Nicotinamide-adenine dinucleotideddATP ............2',3'-Dideoxyadenosine-5'-triphosphate NADH ................Nicotinamide-adenine dinucleotide, reducedATPase ...........Adenosine-5'-triphosphate NADP+ .............Nicotinamide-adenine dinucleotide phosphateBAEE ..............Benzoyl-L-arginine ethyl ester NADPH ..............Nicotinamide-adenine dinucleotide phosphate,BAPNA ...........N—Benzoyl-L-arginine-p-nitroanilide reducedt-Boc ..............tert-butoxy carbonyl NaOAc ..............Sodium acetateBSA ................Bovine serum albumin NBT ..................Nitro-Blue-tetrazolium saltCBZ ................Carbonbenzoxy NPS ..................Nitrophenyl sulphenylChE ................Cholinesterase 2-OG(α-KG) .......2-OxoglutarateCK(CPK) ..........Creatine kinase (α-Ketoglutarate)CoA(CoA-SH) ...Coenzyme A PALP .................Pyridoxal-5-phosphateCP ..................Creatine phosphate PAMP ................Pyridoxamine-5-phosphateCTP ................Cytidine-5'-triphosphate PC ....................Paper chromatographydCTP ..............2'-Deoxycytidine-5'-triphosphate PEP ..................Phosphoenol pyruvateddCTP ............2'-3'-Dideoxycytidine-5'-triphosphate 6-PGDH ............6-Phosphogluconate dehydrogenaseDAP ...............Dihydroxyacetone phosphate 6-PG .................6- Phosphogluconate,DNA ...............Deoxyribonucleic acid (D-Gluconate-6-phosphate)DNase ............Deoxyribonuclease PGI ...................Phosphoglucose isomerase,DNP ...............Dinitrophenyl (Phosphohexose isomerase),DNPyr .............Dinitropyridyl (Glucosephosphate isomerase)DTE ................Dithioerythritol PGK ..................3-Phosphoglycerate kinaseDTT ................Dithiothreitol PGIuM ...............PhosphoglucomutaseEDTA ..............Ethylenediaminetetraacetic acid PGM .................Phosphoglycerate mutaseENOL ..............Enolase Pi ..................... Inorganic phosphateFAD ................Flavin-adenine dinucleotide PK ....................Pyruvate kinaseFDH ................Formate dehydrogenase PL-A .................Phospholipase AFDP ................D-Fructose-1,6-diphosphate PL-D .................Phospholipase DFDPase ...........Fructose diphosphatase POD ..................PeroxidaseFMN ...............Flavin mononucleotide Ppase ...............Pyrophosphatase, inorganicF-1-P .............D-Fructose-1-phosphate Ppi.................... Inorganic pyrophosphateF-6-P .............D-Fructose-6-phosphate PPO ..................2,5-Diphenyl oxazoleF-6-PK ...........Fructose-6-phosphate kinase PTA...................PhosphotransacetylaseFUM ...............Fumarase RNA ..................Ribonucleic acidGal-1-P ..........Galactose-1-phosphate tRNA ................. Transfer ribonucleic acidGAP ...............Glyceraldehyde-3-phosphate RNase ...............RibonucleaseGAPDH ...........D-Glyceraldehyde-3-phosphate dehydrogenase SDH ..................Sorbitol dehydrogenase,α-GDH ...........α-Glycerol phosphate dehydrogenase, (Polyol dehydrogenase) (Glycerol-1-phosphate dehydrogenase), SP ....................Sucrose phosphorylase (Glycerol-3-phosphate dehydrogenase) TALD ................. TransaldolaseGDP ...............Guanosine-5'-diphosphate TIM ................... Triosephosphate isomeraseGK .................Glycerokinase Tris ................... Tris-hydroxymethyl-aminomethaneGIDH ..............L-Glutamate dehydrogenase TTP (dTTP) ........ Thymidine-5'-triphosphateGMP ...............Guanosine-5'-monophosphate (2'-Deoxythymidine-5'-triphosphate)GOD ...............Glucose oxidase ddTTP ...............2',3'-dideoxythymide-5'-triphosphateGOT ...............Glucamate-oxaloacetate transaminase UDP ..................Uridine-5'-diphosphateG-1-P .............D-Glucose-1-phosphate UDPG ................Uridine-5'-diphosphate glucoseG-1,6-P

2 .........D-Glucose-1,6-diphosphate UDPgal ..............Uridine-5'-diphosphate galactose

G-6-P .............D-Glucose-6-phosphate UDPGP ..............Uridine-5'-diphosphate glucose pyrophosphorylaseG-6-PDH .........Glucose-6-phosphate dehydrogenase (Glucose-1-phosphate uridylyltransferase)GPT ................Glutamate pyruvate transaminase UMP .................Uridine-5'-monophosphateGR .................Glutathione reductase UTP ..................Uridine-5'-triphosphateGSH ...............Glutathione, reduced dUTP.................2'-Deoxyuridine-5'-triphosphateGSSG .............Glutathione, oxidized ddUTP ...............2',3'-Dideoxyuridine-5'-triphosphateγ-GT ...............γ-Glutamyltransferase XOD .................. Xanthine oxidaseGTP ................Guanosine-5'-triphosphate dGTP ..............2'-Deoxyguanosine-5'-triphosphate DBR: “Data For Biochemical Research” Dawson, R. M. C., ddGTP ............2',3'-Dideoxyguanosine-5'-triphosphate Elliot, D. C.,Elliot, W. H., Jones, K. M., Oxford Science Publications (1986) HK ..................Hexokinase NRC: “Specifications and Criteria for Biochemical Compounds.” National HPLC ..............High performance liquid chromatography Academy of Sciences, Washington, D.C., 3rd edition (1972).

Biochemical Acronyms

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Standard Atomic Weights of the Elements

Atomic Number Element Symbol Weight

89 . . . . . . . .Actinium . . . . . . . . Ac . . . . . . . . 227.0277 13 . . . . . . . .Aluminum. . . . . . . . Al . . . . . . . . . 26.981539 95 . . . . . . . .Americium . . . . . . . Am . . . . . . . 243.0614* 51 . . . . . . . .Antimony . . . . . . . . Sb . . . . . . . . 121.75 18 . . . . . . . .Argon. . . . . . . . . . . Ar . . . . . . . . . 39.948 33 . . . . . . . .Arsenic. . . . . . . . . . As . . . . . . . . . 74.92159 85 . . . . . . . .Astatine . . . . . . . . . At . . . . . . . . . 209.9871* 56 . . . . . . . .Barium . . . . . . . . . Ba . . . . . . . . 137.327 97 . . . . . . . .Berkelium . . . . . . . Bk. . . . . . . . . 247.0703* 4 . . . . . . . . .Beryllium . . . . . . . . Be . . . . . . . . . . 9.012182 83 . . . . . . . .Bismuth . . . . . . . . . Bi . . . . . . . . . 208.98037 107 . . . . . . .Bohrium . . . . . . . . . Bh . . . . . . . . 264.12 5 . . . . . . . . .Boron. . . . . . . . . . . B . . . . . . . . . . 10.811 35 . . . . . . . .Bromine . . . . . . . . Br . . . . . . . . . 79.904 48 . . . . . . . .Cadmium . . . . . . . . Cd . . . . . . . . 112.411 55 . . . . . . . .Cesium . . . . . . . . . Cs. . . . . . . . . 132.90543 20 . . . . . . . .Calcium . . . . . . . . . Ca . . . . . . . . . 40.078 98 . . . . . . . .Californium. . . . . . . Cf . . . . . . . . . 251.0796* 6 . . . . . . . . .Carbon . . . . . . . . . . C . . . . . . . . . . 12.011 58 . . . . . . . .Cerium . . . . . . . . . Ce . . . . . . . . 140.115 17 . . . . . . . .Chlorine . . . . . . . . . Cl . . . . . . . . . . 35.4527 24 . . . . . . . .Chromium . . . . . . . Cr . . . . . . . . . . 51.9961 27 . . . . . . . .Cobalt . . . . . . . . . . Co . . . . . . . . . 58.9332 29 . . . . . . . .Copper . . . . . . . . . Cu . . . . . . . . . 63.546 96 . . . . . . . .Curium. . . . . . . . . . Cm . . . . . . . . 247.0704* 105 . . . . . . .Dubnium . . . . . . . . Db . . . . . . . . 262.1141 66 . . . . . . . .Dysprosium . . . . . . Dy. . . . . . . . . 162.5 99 . . . . . . . .Einsteinium. . . . . . . Es. . . . . . . . . 252.0830 68 . . . . . . . .Erbium . . . . . . . . . Er . . . . . . . . . 167.26 63 . . . . . . . .Europium . . . . . . . . Eu. . . . . . . . . 151.965 100 . . . . . . .Fermium. . . . . . . . . Fm . . . . . . . . 257.0951 9 . . . . . . . . .Fluorine . . . . . . . . . F. . . . . . . . . . . 18.9984032 87 . . . . . . . .Francium . . . . . . . . Fr . . . . . . . . . 223.0197 64 . . . . . . . .Gadolinium . . . . . . . Gd . . . . . . . . 157.25 31 . . . . . . . .Gallium . . . . . . . . . Ga . . . . . . . . . 69.723 32 . . . . . . . .Germanium. . . . . . . Ge . . . . . . . . . 72.61 79 . . . . . . . .Gold. . . . . . . . . . . . Au . . . . . . . . 196.96654 72 . . . . . . . .Hafnium . . . . . . . . Hf . . . . . . . . . 178.49 108 . . . . . . .Hassium. . . . . . . . . Hs 2 . . . . . . . . .Helium . . . . . . . . . He . . . . . . . . . . 4.002602 67 . . . . . . . .Holmium . . . . . . . . Ho . . . . . . . . 164.93032 1 . . . . . . . . .Hydrogen . . . . . . . . H . . . . . . . . . . . 1.00794 49 . . . . . . . . Indium . . . . . . . . . . In . . . . . . . . . 114.82 53 . . . . . . . . Iodine. . . . . . . . . . . I . . . . . . . . . . 126.90447 77 . . . . . . . . Iridium . . . . . . . . . . Ir . . . . . . . . . 192.22 26 . . . . . . . . Iron . . . . . . . . . . . . Fe. . . . . . . . . . 55.847 36 . . . . . . . .Krypton . . . . . . . . . Kr . . . . . . . . . . 83.8 57 . . . . . . . .Lanthanum . . . . . . La. . . . . . . . . 138.9055 103 . . . . . . .Lawrencium . . . . . . Lr . . . . . . . . 262.1097 82 . . . . . . . .Lead . . . . . . . . . . . Pb . . . . . . . . 207.2 3 . . . . . . . . .Lithium. . . . . . . . . . Li . . . . . . . . . . . 6.941 71 . . . . . . . .Lutetium. . . . . . . . . Lu . . . . . . . . 174.967 12 . . . . . . . .Magnesium . . . . . . Mg . . . . . . . . . 24.305 25 . . . . . . . .Manganese. . . . . . . Mn . . . . . . . . . 54.93805 109 . . . . . . .Meitnerium. . . . . . . Mt . . . . . . . . 268.1388 101 . . . . . . .Mendelevium . . . . . Md . . . . . . . . 258.0984* 80 . . . . . . . .Mercury . . . . . . . . . Hg . . . . . . . . 200.59 42 . . . . . . . .Molybdenum. . . . . . Mo . . . . . . . . . 95.94 60 . . . . . . . .Neodymium . . . . . . Nd . . . . . . . . 144.24

Atomic Number Element Symbol Weight

10 . . . . . . . .Neon . . . . . . . . . . . Ne . . . . . . . . . 20.1797 93 . . . . . . . .Neptunium . . . . . . . Np . . . . . . . . 237.0482* 28 . . . . . . . .Nickel . . . . . . . . . . Ni . . . . . . . . . . 58.69 41 . . . . . . . .Niobium . . . . . . . . . Nb . . . . . . . . . 92.90638 7 . . . . . . . . .Nitrogen . . . . . . . . . N . . . . . . . . . . 14.00674 102 . . . . . . .Nobelium . . . . . . . . No . . . . . . . . 259.1010 76 . . . . . . . .Osmium . . . . . . . . . Os . . . . . . . . 190.2 8 . . . . . . . . .Oxygen. . . . . . . . . . O . . . . . . . . . . 15.9994 46 . . . . . . . .Palladium . . . . . . . . Pd . . . . . . . . 106.42 15 . . . . . . . .Phosphorus . . . . . . P . . . . . . . . . . 30.973762 78 . . . . . . . .Platinum. . . . . . . . . Pt . . . . . . . . . 195.08 94 . . . . . . . .Plutonium. . . . . . . . Pu . . . . . . . . 244.0642* 84 . . . . . . . .Polonium . . . . . . . . Po . . . . . . . . 208.9824* 19 . . . . . . . .Potassium . . . . . . . K . . . . . . . . . . 39.0983 59 . . . . . . . .Praseodymium . . . . Pr . . . . . . . . . 140.90765 61 . . . . . . . .Promethium . . . . . . Pm . . . . . . . . 144.9127* 91 . . . . . . . .Protactinium . . . . . . Pa. . . . . . . . . 231.0359 88 . . . . . . . .Radium . . . . . . . . . Ra . . . . . . . . 226.0254* 86 . . . . . . . .Radon . . . . . . . . . . Rn . . . . . . . . 222.0176* 75 . . . . . . . .Rhenium. . . . . . . . . Re . . . . . . . . 186.207 45 . . . . . . . .Rhodium. . . . . . . . . Rh . . . . . . . . 102.9055 37 . . . . . . . .Rubidium . . . . . . . . Rb . . . . . . . . . 85.4678 44 . . . . . . . .Ruthenium . . . . . . . Ru . . . . . . . . 101.07 104 . . . . . . .Rutherfordium. . . . . Rf . . . . . . . . . 261.1088 62 . . . . . . . .Samarium. . . . . . . . Sm . . . . . . . . 150.36 21 . . . . . . . .Scandium. . . . . . . . Sc. . . . . . . . . . 44.95591 106 . . . . . . .Seaborgium . . . . . . Sg . . . . . . . . 266.1219 34 . . . . . . . .Selenium . . . . . . . . Se. . . . . . . . . . 78.96 14 . . . . . . . .Silicon . . . . . . . . . . Si . . . . . . . . . . 28.0855 47 . . . . . . . .Silver . . . . . . . . . . . Ag . . . . . . . . 107.8682 11 . . . . . . . .Sodium . . . . . . . . . Na . . . . . . . . . 22.989768 38 . . . . . . . .Strontium . . . . . . . . Sr . . . . . . . . . 87.62 16 . . . . . . . .Sulfur. . . . . . . . . . . S . . . . . . . . . . 32.066 73 . . . . . . . .Tantalum . . . . . . . . Ta . . . . . . . . . 180.9479 43 . . . . . . . .Technetium. . . . . . . Tc. . . . . . . . . . 97.9072* 52 . . . . . . . .Tellurium . . . . . . . . Te . . . . . . . . . 127.6 65 . . . . . . . .Terbium . . . . . . . . . Tb. . . . . . . . . 158.92534 81 . . . . . . . .Thallium . . . . . . . . . Tl . . . . . . . . . 204.3833 90 . . . . . . . .Thorium . . . . . . . . . Th. . . . . . . . . 232.0381* 69 . . . . . . . .Thulium . . . . . . . . . Tm . . . . . . . . 168.93421 50 . . . . . . . .Tin . . . . . . . . . . . . . Sn . . . . . . . . 118.71 22 . . . . . . . .Titanium. . . . . . . . . Ti . . . . . . . . . . 47.88 74 . . . . . . . .Tungsten . . . . . . . . W . . . . . . . . . 183.85 112 . . . . . . .Ununbium. . . . . . . . Uub 116 . . . . . . .Ununhexium . . . . . . Uuh 110 . . . . . . .Ununnilium . . . . . . . Uun 114 . . . . . . .Ununquadium . . . . . Uuq 111 . . . . . . .Unununium. . . . . . . Uuu. . . . . . . . 272.1535 92 . . . . . . . .Uranium . . . . . . . . . U . . . . . . . . . 238.0508* 23 . . . . . . . .Vanadium . . . . . . . . V . . . . . . . . . . 50.9415 54 . . . . . . . .Xenon . . . . . . . . . . Xe. . . . . . . . . 131.29 70 . . . . . . . .Ytterbium . . . . . . . . Yb. . . . . . . . . 173.04 39 . . . . . . . .Yttrium . . . . . . . . . . Y . . . . . . . . . . 88.90585 30 . . . . . . . .Zinc . . . . . . . . . . . . Zn. . . . . . . . . . 65.39 40 . . . . . . . .Zirconium. . . . . . . . Zr . . . . . . . . . . 91.224

*Relative atomic mass of the isotope of that element of longest known half-life.Names of individual elements with atomic numbers 110 to 116 are provisional.Based on 2001 IUPAC Table of Standard Atomic Weights of the Elements.Reproduced from Pure Appl. Chem., (2003) Vol. 75, No. 8, pp. 1107-1122 by permission of the copyright owner, IUPAC. ©2003 IUPAC.

Biochemicals

Biochemicals


In 1966, Good, et al. introduced a series of new biological buffers for use in the physiological pH range(1). Prior to that time only a few buffer systems, consisting of weak acid/salt or weak base/salt were available to biological laboratories. Most of these systems had severe limitations associated with them and are discussed later. The “Good” zwitterionic buffers were designed to meet a genuine need, particularly in the developing field of cellular biology, and have gained rapid acceptance. Zwitterionic buffers, by definition, contain both positive and negative ionizable groups. Secondary and tertiary amines provide the positive charges, while sulfonic and carboxylic acid groups provide the negative charges.

There are very few traditional materials which are weak acids or weak bases with pK

a values effective between pH 6.0 and 9.0 where most

biological processes take place. All of these compounds exhibit some significant deviations from the requirements of the “ideal” buffer.

Phosphate is an active participant in many biochemical processes, being an activator, inhibitor and/or a metabolite in many biological systems. Borate buffers complex with a wide variety of important respiratory metabolites and other organic compounds as well. For example, polyols, including carbohydrates and their derivatives, can significantly lower the pH of borate buffers through complex formation. Phosphates also demonstrate complexing capabilities with divalent and polyvalent cations and can therefore inhibit a series of metal ion-dependent biochemical reactions.

Tris (also a popular traditional biochemical buffer) is a poor buffer below pH 7.5 and is a potentially reactive primary amine which often acts as an inhibitor. It has an appreciable solubility in organic solvents which permits it to penetrate biological membranes and it has a very high pH temperature coefficient.

Bicarbonate is a poor buffer due to the limited solubility of carbon dioxide and the associated problems of liquid/gas equilibrium. Since bicarbonate buffers spontaneously liberate carbon dioxide (equation 1) they require sealed vessels capable of maintaining a carbon dioxide atmosphere in order to sustain a constant pH.

1. CO3

= + 2H

+ HCO

3

- + H

+ H

2O+CO

2

Bicarbonate’s pKa is 6.3 and therefore has a greatly diminished buffering

capacity within the physiologically important pH range of 7 to 7.5.

From the Henderson-Hassellbach equation, (equation 2), it can be shown that optimal buffering occurs when the working pH is equal to the pK

a of

the ionizing group, and falls at an increasing distance from that value. In practice, the useful pH range for a buffer is its pK

a ± 1 pH unit.

2. pH = pKa + log [(activity of base) ÷ (activity of acid)]

Good’s buffers were designed to meet the following criteria of an effective “ideal” biological buffer as much as possible:

• pKa between 6.0 and 8.0, the region of most biological reactions

• High aqueous solubility• Minimal penetration of biological membranes• Minimal salt effects or effects due to the ionic composition of the solution• Minimal effects due to concentration or temperature• Minimal interactions with mineral cations• Enzymatic and hydrolytic stability• Minimal absorbance between 240 and 700 nm• Easy to purify• Non-toxic• Minimal participation in biochemical reactions

Helpful Suggestions1. When preparing concentrated solutions refer to solubility data.2. Media that contain buffers may be adjusted to correct pH with NaOH

or HCl. If this is not feasible, the buffer stock can be adjusted to correct pH before addition to the media.

3. Solutions containing buffers can be sterilized by membrane filtration or normal autoclaving procedures.

4. Don’t autoclave solutions which have been adjusted with Sodium Bicarbonate.

5. PIPES requires the addition of alkali to effect solution.6. Always use pyrogen free distilled water when preparing media from

dry chemicals.7. Always choose a buffer with a pK

a close to the pH that is required. If

the pH is expected to drop during the project select a buffer with a pKa

slightly lower than the pH.8. Always adjust the pH of the crystalline buffers when placed into

solution, otherwise the pH will be incorrect in most instances.9. Use tetramethylammonium hydroxide when a buffer without mineral

cations is required.10. Whenever possible prepare the buffer solution at the concentration

and temperature of the experimental conditions under which it will be used.

11. Other buffers suitable for ultraviolet spectroscopy include many zwitterionic acids. For example, at concentrations of 0.05M, BES, Bicine, HEPES, MES, PIPES,TES and Tricine have negligible absorption above 240 nm and can be used successfully at 230 nm. ACES absorbs significantly at 230 nm and ADA is limited to above about 260 nm.

References:1. Good, N. E., Winget, G. D., Winter, W., Connolly, T. N., Izawa, S. and

Singh, R. M. M. (1966) Biochemistry 5, 467-477.2. Schwarzenbach, G. (1955) Helv. Chim. Acta. 38, 1147.3. Good, N. E. and Izawa, S. (1972) Methods Enzymol. 24, 53-68.

Good’s Buffers Guidelines

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∆ pKa/°C Molarity of Common Formula Temperature Saturated Name Formula Weight Coefficient Solution at 0°C pKa (4°C) pKa (20°C) pKa (37°C)

ACES H2NCOCH

2NH 182.20 -0.020 0.22 7.20 6.90 6.54

CH2 CH

2SO

3H

ADA NH2COCH

2N 190.15 -0.011 0.09 6.80 6.60 6.43

(CH2 COOH)

2

BES (HOCH2CH

2)2NCH

2 213.25 -0.016 3.2 7.41 7.15 6.88

CH2 SO

3H

Bicine (CH2CH

2OH)

2NCH

2 163.17 -0.018 1.1 8.64 8.35 8.04

COOH

CAPS (C6H

11)NH(CH

2)3 221.32 -0.021 0.47 10.74 10.40 10.04

SO3H

CHES (C6H

11)NH(CH

2)2 207.29 -0.011 1.14 9.73 9.55 9.36

SO3H

Glycinamide NH2CH

2CONHCH

2 132.12 -0.028 1.1 8.85 8.40 7.92

COOH

Glycinamide•HCl H2NCH

2CONH

2• 110.54 -0.029 4.6 8.66 8.20 7.71

HCl

HEPES HO(CH2)2(C

4H

8N

2) 238.30 -0.014 2.25 7.77 7.55 7.31

(CH2)2SO

3H

HEPPS HO3S(CH

2)3 252.33 -0.011 1.58 8.18 8.00 7.81

(C4H

8N

2)(CH

2)2OH

MES HO3S(CH

2)2 213.25 -0.011 0.65 6.33 6.15 5.96

(C4H

8NO)•H

2O

MOPS HO3S(CH

2)3 209.26 -0.011 3.09 7.38 7.20 7.01

(C4H

8NO)

PIPES HO3S(CH

2)2(C

4H

8N

2) 302.37 -0.0085

_____ 6.94 6.80 6.66

(CH2)2SO

3H

TES (HOCH2)3CNHCH

2 229.25 -0.020 2.6 7.82 7.50 7.16

CH2SO

3H

TRICINE (CH2OH)

3CNHCH

2 179.17 -0.021 0.8 8.49 8.15 7.79

COOH

TRIS NH2C(CH

2OH)

3 121.14 -0.031 2.4 8.80 8.30 7.77

References:1. Good, N. E., Winget, G. D., Winter, W., Connolly, T. N., Izawa, S. and Singh, R. M. M. (1966) Biochemistry 5, 467-477.2. Schwarzenbach, G. (1955) Helv. Chim. Acta. 38, 1147.3. Good, N. E. and Izawa, S. (1972) Methods Enzymol. 24, 53-68.

Physical Properties of Good’s and Other Biological Buffers

Biochemicals

Biochemicals


ACESH

2NCOCH

2NHCH

2CH

2SO

3H

Formula Weight: 182.20PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 6.90 ± 0.15A (260 nm, 5%, 1 cm): ≤ 0.1Loss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.2%Sulfate (SO

4): ≤ 0.01%

Iron (Fe): ≤ 5 ppmLead (Pb): ≤ 10 ppmCAS #7365-82-4

10001 10gm 25gm 100gm 1kg

AcetamideC

2H

5NO

Formula Weight: 59.07PRODUCT SPECIFICATIONSForm: White/clear crystalsAssay: ≥ 99%Identity: By IRMelting Point: 77 - 82°CMoisture (KF): ≤ 1.0%CAS #60-35-5

10000 50gm 100gm

AcetophenetidineC

10H

13NO

2

Formula Weight: 179.22CAS #62-44-2

10035 200gm 500gm 1kg

S-Acetyl Coenzyme A, Lithium Salt

ULTRAPUREC

23H

35N

7O

17P

3SLi

3•3H

2O

Formula Weight: 881.42PRODUCT SPECIFICATIONSForm: White powderAssay (Total UV, pH 7.0): ≥ 90%λ

max: 259 ± 1 nm

εmax

(pH 7): [14.6 ± 0.8] x 103

Spectral Ratios: A

232/A

260: 0.51 ± 0.02

A250

/A260

: 0.86 ± 0.04 A

280/A

260: 0.17 ± 0.02

Storage: -20°CCAS #75520-41-1

10062 10mg 25mg 100mg 500mg

N-Acetyl-L-CysteineHSCH

2CH(NHCOCH

3)COOH

Formula Weight: 163.19PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.0 - 102.0% C

5H

9NO

3S (dry basis)

Identity: By IRLoss on Drying: ≤ 1.0%Residue on Ignition: ≤ 0.5%Heavy Metals (Pb): ≤ 10 ppmCAS #616-91-1

10120 10gm 50gm 100gm 500gm 1kg

N-Acetyl-D-Galactosamine(N-Acetylchondrosamine)

C8H

15NO

6

Formula Weight: 221.21PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 97%[α]20

D : +83° ± 5° (c=1, H

2O)

Storage: 4°CCAS #14215-68-0

10140 100mg 500mg 1gm 5gm

N-Acetyl-D-GlucosamineC

8H

15NO

6

Formula Weight: 221.21PRODUCT SPECIFICATIONSForm: White to off-white powderSolubility (50 mg/ml): Clear to very slightly hazy;

Colorless to yellow solution in H2O

[α]20D : +40.9° ± 2° (c=2 in H

2O)

Loss on Drying: ≤ 0.1%Heavy Metals: ≤ 10 ppmCAS #7512-17-6

10145 10gm 25gm 100gm 500gm

N-Acetyl-DL-Phenylalanine-p-Nitroanilide

C17

H17

N3O

4

Formula Weight: 327.33Storage: 4°CCAS #19746-42-0

10240 250mg 1gm 5gm 10gm

Acetylated BSASee Albumin, Bovine, Acetylated, page 187

Acid Phosphatase(E.C.3.1.3.2)Source: Wheat GermForm: Lyophilized powderUnit Definition: One unit hydrolyzes 1 µmol of

o-carboxyphenylphosphate/min at 25°C, pH 5.0.


10380 1gm

Bioc

hem

ical

sBiochemicals

8 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Acridine Orange, Zinc Chloride Double Salt

(C.I.46005)C

17H

19N

3•HCl•1/

2ZnCl

2

Formula Weight: 369.97PRODUCT SPECIFICATIONSForm: Maroon/rust colored powderIdentity: By IRApplication: •Used to distinguish single-stranded from

double-stranded nucleic acidsTypical Procedure:1. Stain the agarose gel with a solution of 30 µg/

ml acridine orange in 10mM sodium phosphate monohydrate, pH 7.0, for 15 minutes at room temperature in the dark.

2. Destain by running hot tap water over the gel for 15-20 minutes.

3. Visualize bands by UV illumination with a 300 nm light source.

4. Single-stranded DNA fluoresces orange-red. Double-stranded DNA fluoresces green.

CAS #10127-02-3

10390 5gm 25gm 100gm

Acriflavin NeutralC

14H

14ClN

3

Formula Weight: 259.73PRODUCT SPECIFICATIONSForm: Orange, granular powderIdentity: By IRLoss on Drying: ≤ 8%Arsenic (As): ≤ 10 ppmChlorine: 13.0 - 16.0%CAS #8048-52-0

10395 25gm 100gm

Acrylamide

ULTRAPUREMB GradeCH

2=CHCONH

2

Formula Weight: 71.08PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 99.9%Identity: By IRA (410 nm, 35%, 1 cm): ≤ 0.02A (290 nm, 1%, 1 cm): ≤ 0.1A (280 nm, 7mM, 1 cm): ≤ 0.04A (252 nm, 7mM, 1 cm): ≤ 1.20Insoluble Matter (H

2O): ≤ 0.005%

Insoluble Matter (MeOH): ≤ 0.005%pH (10%, 0.1N NaCl): 5.5 - 7.0Melting Point: 84° ± 1°CAcrylic Acid: ≤ 0.001%Conductivity (35%): ≤ 5 µmhos/cmIron (Fe): 1 ppmLead (Pb): ≤ 1 ppmGel Performance: Passes testApplications:•Basic component for preparing polyacrylamide

gels•Used at a 19:1 ratio with bis-acrylamideDNA Size Separation by Acrylamide Percentage: DNA Size Range Concentration of (Base Pairs) Acrylamide (%) 100 - 1,000 3.5 80 - 500 5.0 60 - 400 8.0 40 - 200 12.0 10 - 100 20.0CAS #79-06-1

75820 25gm 100gm 500gm 1kg

AcrylamideReagent GradeC

3H

5NO

Formula Weight: 71.08PRODUCT SPECIFICATIONSForm: White, clear crystalline powderAssay: ≥ 99.95%Identity: By IRA (290 nm, 1%, 1 cm): ≤ 0.125pH (1%, H

2O): 5.8 - 7.5

Acrylic Acid Content: ≤ 0.001%Insoluble Matter: ≤ 0.005%CAS #79-06-1

32800 25gm 100gm 500gm 1kg

Acrylamide Gel Mixes and SolutionsDNA Sequencing Gel Mix, TBE Buffer, 6%,

page 222Glycerol Tolerant Gel (GTG) Buffer, 20X Solution,

page 234Glycerol Tolerant Gel (GTG) Buffer, 20X Ready-

Mixed Powder, page 234RapidGel™ 40% Liquid Acrylamide Stock

Solution, page 281RapidGel DNA Sequencing Gel Solution, TBE

Buffer, 4%, page 281RapidGel DNA Sequencing Gel Solution, TBE


Buffer, 8%, page 281RapidGel-XL 6% DNA Sequencing Gel Solution,

page 282RapidGel-XL 40% Liquid Acrylamide Stock

Solution, page 282Stop Solution, page 291

Actinomycin D

ULTRAPURESource: Streptomyces antibioticusC

62H

86N

12O

16

Formula Weight: 1255.42PRODUCT SPECIFICATIONSForm: Bright red powderAssay (A

441, MeOH): ≥ 93.0%

Application:•Actinomycin D is a specific inhibitor of DNA-

dependent RNA synthesis and is used in the preparation of cDNA. The concentration of a solution of actinomycin can be found according to Beer’s Law, by measuring its absorbance at 441 nm, based on a molar extinction coefficient of 21,900 (in water) and a molecular weight of 1255.

Thus: c = ε/Ab, where: c = the concentration in molarity of the

solution ε = the molar extinction coefficient (21,900) A = the absorbance of the solution b = the path length of the cellSolubility: 10 mg/ml in ethanol or DMSONote: Actinomycin D is toxic and light sensitive.

Gloves should be worn when handling. Store the stock solution (10 mg/ml) in a foil-wrapped vial at -20°C.

Reference:1. Berger, S. L. and Kimmel, A. R. (1987), “Guide

to Molecular Cloning,” Academic Press, Inc., 320.


10415 2mg 5mg 25mg

Biochemicals

Biochemicals


ADANH

2COCH

2N(CH

2COOH)

2

Formula Weight: 190.15PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 6.60 ± 0.15A (280 nm, 0.1M in 1N NaOH,1 cm): ≤ 0.1Loss on Drying: ≤ 0.5%Iron (Fe): ≤ 30 ppmLead (Pb): ≤ 10 ppmCAS #26239-55-4

10421 100gm 1kg

AdenineC

5H

5N

5

Formula Weight: 135.13PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderIdentity: By IRAssay: ≥ 98.0%Loss on Drying: ≤ 1.0%Residue on Ignition: ≤ 0.1%Sulfate (SO

4): ≤ 0.028%

Heavy Metals (Pb): ≤ 20 ppmArsenic (As): ≤ 2 ppmReference Constants:λ

max (pH 7, NRC ): 261 nm

εmax

(pH 7, NRC ): 13.4 x 103

ε260

(pH 7, DBR ): 13.3 x 103

CAS #73-24-5

10430 5gm 25gm 100gm 1kg

Adenine, Hydrochloride(6-Aminopurine)

C5H

5N

5•HCl

Formula Weight: 171.59 (anhydrous) 180.60 (hemihydrate*)PRODUCT SPECIFICATIONSForm: White to pale yellow crystalline powderAssay (By UV): ≥ 98.0% (dry basis)Identity: By IRChromatography (TLC): HomogeneousMoisture (KF): ≤ 6.0%*Note: The moisture content of this product

varies from anhydrous to slightly above the theoretical hemihydrate.

CAS #6055-72-7

10440 5gm 10gm 25gm 100gm

Adenine Sulfate, Dihydrate(C

5H

5N

5)2•H

2SO

4•2H

2O

Formula Weight: 404.36PRODUCT SPECIFICATIONSForm: White to pale-yellow crystalline powderAssay (Total UV): ≥ 97.0%Identity: By IRSpectral Ratios (pH 1.0): A

250/A

260: 0.76 ± 0.04

A280

/A260

: 0.38 ± 0.04Moisture (KF): ≤ 10%CAS #321-30-2

10450 5gm 10gm 25gm 100gm 1kg

AdenosineC

10H

13N

5O

4

Formula Weight: 267.24PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (UV): ≥ 98.0%Chromatography (TLC): Homogeneousλ

max: 257 nm ± 2 nm

Spectral Ratios (0.1N HCl): A

250/A

260: 0.85 ± 0.03

A280

/A260

: 0.21 ± 0.02Loss on Drying: ≤ 0.5%Reference Constants:λ


εmax

(pH 7, NRC ): 15.4 x 103

ε260

(pH 6, DBR ): 14.9 x 103

CAS #58-61-7

10460 5gm 10gm 25gm 100gm

Adenosine-3'-5'-Cyclic Monophosphate

C10

H12

N5O

6P

Formula Weight: 329.21PRODUCT SPECIFICATIONSForm: White powderPurity: ≥ 98% (dry basis)Moisture (KF): ≤ 10%Storage: 4°CReference Constants:λ


εmax

(pH 7, NRC ): 14.7 x 103

CAS #60-92-4

10470 100mg 1gm 5gm

ADPSee Adenosine-5'-Diphosphate, Disodium Salt,

Dihydrate, page 173

Adenosine-3'-5' Cyclic Monophosphate, Sodium Salt

C10

H11

N5O

6PNa

Formula Weight: 351.19PRODUCT SPECIFICATIONSForm: White powderAssay (UV, pH 2.0): ≥ 98% (dry basis)Storage: 4°CReference Constants:λ


εmax

(pH 7, NRC ): 14.7 x 103

CAS #37839-81-9

10472 100mg 1gm 5gm

Adenosine-5'-Diphosphate, Disodium Salt, Dihydrate(ADP)

C10

H13

N5O

10P

2Na

2•2H

2O

Formula Weight: 507.20PRODUCT SPECIFICATIONSForm: White powderAssay (Total UV): 100 ± 4%Spectral Ratios: A

250/A

260: 0.78 ± 0.03

A280

/A260

: 0.16 ± 0.02Storage: -20°C in air-tight containers.Reference Constants:λ


εmax

(pH 7, NRC ): 15.4 x 103

ε260

(pH 7, DBR ): 15.4 x 103

CAS #16178-48-6

10490 500mg 1gm 5gm 10gm 25gm

Adenosine-5'-Diphosphate, Trisodium Salt(ADP)

C10

H12

N5O

10P

2Na

3•nH

2O

Formula Weight: 493.15•nH2O

Storage: -20°CCAS #2092-65-1

10500 500mg 1gm 5gm

Bioc

hem

ical

sBiochemicals

10 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Adenosine-3'-Monophosphate, Hydrate(3'-AMP)

C10

H14

N5O

7P•nH

2O

Formula Weight: 347.22 (anhydrous)Reference Constants:λ

max (pH 7, DBR ): 259 nm

εmax

(pH 7, DBR ): 15.4 x 103

ε260

(pH 7, DBR ): 15.3 x 103

ε260

(pH 7, NRC ): 15.0 x 103

Storage: -20°CCAS #84-21-9

10555 250mg 500mg

Adenosine-5'-Monophosphate, Free Acid

C10

H14

N5O

7P

Formula Weight: 347.22 (anhydrous)* 365.24 (monohydrate)*PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (UV, pH 7.0 or 0.01N HCl): 99 ± 3%Identity: By IRSpectral Ratios (pH 7.0): A

250/A

260: 0.78 ± 0.03

A280

/A260

: 0.16 ± 0.02Spectral Ratios (0.01N HCl): A

250/A

260: 0.84 ± 0.03

A280

/A260

: 0.22 ± 0.02Moisture: ≤ 6%*Note: Moisture content may vary from anhydrous

to a monohydrate.Reference Constants:λ


εmax

(pH 7, NRC ): 15.4 x 103

ε260

(pH 7, DBR ): 15.3 x 103

CAS #18422-05-4

10520 5gm 10gm 25gm 100gm

Adenosine-5'-Monophosphate, Free Acid, Monohydrate(AMP)

C10

H14

N5O

7P•H

2O

Formula Weight: 365.24PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (Total UV, 0.1N HCl): ≥ 96%λ

max: 257 nm ± 2 nm


250/A

260: 0.84 ± 0.03

A280

/A260



εmax

(pH 7, NRC ): 15.4 x 103

ε260

(pH 7, DBR ): 15.3 x 103

CAS #18422-05-4

10521 5gm 25gm 100gm 1kg

Adenosine-5'-Monophosphate, Disodium Salt(AMP)

C10

H12

N5O

7PNa

2•nH

2O


PRODUCT SPECIFICATIONSForm: White powderAssay (UV, 0.01N HCl): 98 ± 3%λ

max: 257 nm ± 2 nm (0.01N HCl)


250/A

260: 0.84 ± 0.03

A280

/A260

: 0.22 ± 0.02Heavy Metals: ≤ 10 ppmReference Constants:λ


εmax

(pH 7, NRC ): 15.4 x 103

ε260

(pH 7, DBR ): 15.3 x 103

CAS #4578-31-8

10620 5gm 10gm 25gm 100gm

Adenosine-5'-Triphosphate, 100mM Solution(ATP)

ULTRAPUREC

10H

12N

5O

13P

3Na

4

Formula Weight: 595.11Form: 100mM aqueous solution, pH 7.5Storage: -20°C

77241 25µmol(250µl)

Adenosine-5'-Triphosphate, Disodium Salt(ATP)

C10

H14

N5O

13P

3Na

2•3H

2O

Formula Weight: 605.19PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (UV, pH 7 or 0.01N HCl): 100 ± 2%λ

max: 259 nm ± 2 nm (pH 7.0)

εmax

(pH 7.0): [15.4 ± 0.3] x 103

Spectral Ratios (pH 7.0): A

250/A

260: 0.80 ± 0.03

A280

/A260

: 0.15 ± 0.02 orSpectral Ratios (0.01N HCl): A

250/A

260: 0.85 ± 0.05

A280

/A260

: 0.22 ± 0.03Moisture: ≤ 15%Reference Constants:λ


εmax

(pH 7, NRC ): 15.4 x 103

ε260

(pH 7, DBR ): 15.4 x 103

Storage: -20°C, protect from moisture.CAS #51963-61-2

10585 5gm 10gm 25gm 100gm 500gm

Adenosine-5'-Triphosphate, Disodium Salt, Low Iron(ATP)

C10

H14

N5O

13P

3Na

2•3H

2O

Formula Weight: 605.19PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (UV, pH 7.0 or 0.01N HCl): 100 ± 2%λ

max (pH 7.0): 259 ± 2 nm

εmax

(pH 7.0): [15.4 ± 0.3] x 103


250/A

260: 0.80 ± 0.03

A280

/A260

: 0.15 ± 0.02Spectral Ratios (0.01N HCl): A

250/A

260: 0.85 ± 0.05

A280

/A260

: 0.22 ± 0.03Moisture: ≤ 15%Iron (Fe): ≤ 15 ppmReference Constants:λ


εmax

(pH 7, NRC ): 15.4 x 103

ε260

(pH 7, DBR ): 15.4 x 103


10586 1gm 5gm 10gm 25gm 100gm

Biochemicals

Biochemicals


S-Adenosyl-L-Methionine Sulfate p-Toluenesulfonate(SAMe-PTS)

C15

H23

N6O

5S(+) n HSO

4(-) n H

2SO

4C

7H

7SO

3H

Formula Weight: 766.80PRODUCT SPECIFICATIONSForm: White to off white powderAssay (HPLC): ≥ 95% (dry basis)Moisture (KF): ≤ 2.0%Storage: 4°CCAS #97540-22-2

10601 25mg 100mg

Adipic AcidHOOC(CH

2)4COOH


10625 500gm

Adonitol(D-Ribitol)

C5H

12O

5

Formula Weight: 152.15PRODUCT SPECIFICATIONSForm: White to off-white powderMelting Point: 103° ± 2°CLoss on Drying: ≤ 0.5%Heavy Metals (Pb): ≤ 10 ppmCAS #488-81-3

10635 5gm 25gm 100gm

AEBSF Hydrochloride(4-(2-Aminoethyl)-benzenesulfonyl fluoride hydrochloride)

C8H

10FNO

2S•HCl

Formula Weight: 239.69PRODUCT SPECIFICATIONSForm: Fine white powderAssay (HPLC): ≥ 98%Identity: By IRMelting Point: 181 - 185°CSolubility (H

2O, 20°C): 10 gm/L

Storage: 4°CCAS #30827-99-7Applications:•Inactivation of trypsin and thrombin(1)

•Synthetic and low molecular weight inhibitor of serum kallikrein(2)

•Specific and irreversible inhibitor of serine proteases(3)

Notes: AEBSF irreversibly inactivates thrombin and other serine proteases (e.g. chymotrypsin, kallikrein, plasmin, proteinase K, trypsin) by sulfonylation of a functional group in the active center of the enzyme(1). AEBSF (LD

50

determined from the oral dose in mouse is 2.8 gm/kg, which is higher than those for DFP and PMSF) is a substantially less toxic substitute for PMSF and DFP. It is highly water soluble and has an acidic pH stability. AEBSF is inactivated at 37°C by 50% after 5 hours. We recommend a concentration of stock solution of 20mM or 100mM in water or recommended buffer at acidic pH. Stock solutions are stable for up to 2 months at -20°C and for approximately one week at 4°C. AEBSF should be added to an assay buffer just before use at a final concentration of 0.1 - 2mM(3-5).

References:1. Walsmann, P., Richter, M. and Markwardt, F.

(1972) Acta Biol. Med. Ger. 28, 577-585.2. Markwardt, F., Drawert, J. and Walsmann, P.

(1974) Biochem Pharmacol. 23, 2247-2256.3. Taylor, J. A., Karas, J. L., Ram, M. K., Green, O.

M. and Seidel-Dugan, C. (1995) Mol. Cell. Biol. 8, 4149-4157.

4. Murphy, B. J., Rossie, S., De Jongh, K. S. and Catterall, W. A. (1993) J. Biol. Chem. 268, 27355-27362.

5. Nathan, D. F. and Lindquist, S. (1995) Mol. Cell. Biol. 15, 3917-3925.

11118 200mg 1gm

Agar, Bacteriological

ULTRAPUREType APRODUCT SPECIFICATIONSForm: White to cream-colored powderMoisture: ≤ 10%Ash: ≤ 6.5%Gel Strength (1.5%): 550 - 950 gm/cm2

Gel pH (1.5%) after autoclaving: 6.0 - 7.5Gel Point (1.5%): 32 - 38°CMelting Point (1.5%): 80 - 90°CApplication:•Used extensively as a gelling agent in the

preparation of bacteriological culture media. Its main attributes are superior transparency, very reliable reproducibility and absence of inhibitors capable of hindering optimal development of microorganisms. Extraneous matter reduced to a minimum.

CAS #9002-18-0

10906 4oz 1lb 5lb 25lb

Agar, Noble Agar

ULTRAPUREPRODUCT SPECIFICATIONSForm: Pale cream powderMoisture: ≤ 10%Ash: ≤ 1.6%Gel Strength (1.5%): ≥ 700 gm/cm2

Gel pH (1.5%): 5.0 - 7.0Gel Point (1.5%): 32 - 37.5°CMelting Point (1.5%): 80 - 95°CA (430 nm, 1.5%): ≤ 0.150Resistance (1% suspension): ≥ 25,000 OhmsEEO (-m

r): ≤ 0.450 (pH 8.4)

Application:•Gelling agent essentially free of impurities.

Used mainly in biochemistry and molecular biology procedures wherever increased purity is required.

Typical Agar Preparation: Plates: 15 gm/l of media; 30-35 ml per

90 mm plate Top Agar: 7 gm/l of media Autoclave for 20 minutes and swirl gently to

evenly distribute the agar. If antibiotics are to be added, allow the agar to cool to 50°C. When pouring plates, gently swirl the medium. A Bunsen burner flame can be passed over the surface of the plates to remove any air bubbles. After the medium has hardened, invert the plates and store at 4°C.

CAS #9002-18-0

10907 100gm 500gm 1kg

AgarPRODUCT SPECIFICATIONSForm: Light tan granular powderIdentity: Passes testLoss on Drying: ≤ 20.0%Total Ash: ≤ 6.5%CAS #9002-18-0

10654 4oz 1lb 5lb 25lb

Agar, FlakesCAS #9002-18-0

10762

Bioc

hem

ical

sBiochemicals

1� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

USB Agarose Selection Guide

Genetic Performance Certified™ (GPC): Functionally tested in specific molecular biology applications (e.g. nucleic acid recovery, in-gel restriction enzyme digestion or ligation) to ensure optimal agarose performance.

Hi-Res™: High resolution.

Biochemicals

Biochemicals


Effect of Agarose Concentration on DNA Separation

1X TAE Buffer Gel Concentration 1X TBE Buffer

Size Range (bp) % Size Range (bp)

Agarose - Separation ≥ 500 bp, Genetic Performance CertifiedTM [75817]

20,000 - 1,000 0.6 15,000 - 1,000 12,000 - 500 0.8 10,000 - 500 8,000 - 300 1.0 7,000 - 250 6,000 - 200 1.2 5,000 - 200 3,500 - 100 1.5 3,000 - 100 2,000 - 50 2.0 2,000 - 50

Agarose - Pulse Field (PFGE) [32901]

40,000 - 3,000 0.3 20,000 - 2,000 22,000 - 2,000 0.5 12,000 - 1,500 15,000 - 1,000 0.8 9,000 - 1,000 10,000 - 500 1.0 6,000 - 500 5,000 - 200 1.8 3,000 - 200

Agarose - Hi-ResTM, Separation ≤ 1000 bp [10132]

1,500 - 100 2.0 1,200 - 100 1,000 - 50 3.0 700 - 40 500 - 20 4.0 200 - 20 300 - 10 5.0 < 100

Agarose - Hi-ResTM, Separation ≤ 1500 bp [10138]

2,500 - 700 2.0 1,500 - 500 1,200 - 500 3.0 800 - 100 700 - 100 4.0 500 - 50 250 - 30 5.0 250 - 20

Agarose - LE [32802]

20,000 - 1,000 0.6 15,000 - 1,000 12,000 - 500 0.8 10,000 - 500 8,000 - 300 1.0 7,000 - 250 6,000 - 200 1.2 5,000 - 200 3,500 - 100 1.5 3,000 - 100 2,000 - 50 2.0 2,000 - 50

Agarose - Low Melt, Separation ≤ 1000 bp, Genetic Performance CertifiedTM [32829]

1,500 - 500 2.0 1,000 - 400 700 - 150 3.0 500 - 100 300 - 70 4.0 150 - 10 50 - 10 5.0 < 30

Agarose - Low Melt, Separation ≥ 1000 bp, Genetic Performance CertifiedTM [32830]

20,000 - 500 0.75 12,000 - 500 16,000 - 300 1.00 8,000 - 300 10,000 - 250 1.25 4,000 - 200 5,000 - 200 1.50 3,000 - 150 2,500 - 100 1.75 2,000 - 100 1,500 - 50 2.00 1,000 - 50

Bioc

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sBiochemicals

1� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

ULTRAPUREMB GradePRODUCT SPECIFICATIONSForm: Granular, free-flowing powderEEO (-m

r): 0.05 - 0.13

Gel Point (1.5%): 36.0 ± 1.5°CRemelt Point (1.5%): 88.0 ± 1.5°CGel Strength (1%): ≥ 1,200 gm/cm2

Gel Strength (1.5%): ≥ 2,500 gm/cm2

Moisture: ≤ 7%Turbidity (1.5%): ≤ 40 NpResidue on Ignition: ≤ 0.4%Sulfate (SO

4): ≤ 0.14%

Agarose - Separation > 500 bp, Genetic Performance CertifiedTM

* Range of separation depends upon the choice of buffer. Migration in TBE buffer is slower, therefore slightly lower concentrations can be used to obtain the same range of separation.

** Size in base pairs

Guide for Separation Ranges*Agarose – Separation ≥ 500 bp, Genetic Performance CertifiedTM (Product No. 75817) 200 400 600 800 1,000 2,000 4,000 6,000 8,000 10,000 12,000 14,000 16,000 18,000 20,000 bp**

TAE Buffer TBE Buffer

0

Preparation of an Agarose Gel (PNs 75817 & 32802):Weigh out the desired amount of agarose and place in an Erlenmeyer flask with a measured amount of electrophoresis buffer. Example: For an 0.8% gel, add 0.8 gm of agarose and 100 ml of TBE Buffer (1X), to a 200 ml flask. The larger flask insures against the agarose boiling over. Dissolve the agarose in a boiling water bath or in a revolving-plate microwave oven. All the grains of agarose should be dissolved and the solution clear. Cool the solution to 60°C (70°C for concentrations 2% or above) and pour immediately. Allow the gel to set for one-half hour before using. Make sure to use the same electrophoresis buffer in the gel as for the running buffer.

Related Products

TAE Buffer, 10X Solution75904 1L 5L

TBE Buffer, 5X Solution75891 1L 5L

TBE Buffer, 10X Ready-Mixed Powder70454 6x200ml

Genetic Performance Tests: DNase: Passes test RNase: Passes test Restriction Enzyme Digestion: Passes test Ligation: Passes test DNA Binding: Passes test Blotting: Passes test Gel Background: Passes test DNA Resolution: Passes testSeparation Guidelines:Range of separation in 1X TAE: 0.6%: 20,000-1000 bp 0.8%: 12,000-500 bp 1.0%: 8000-300 bp 1.2%: 6000-200 bp 1.5%: 3500-100 bp 2.0%: 2000-50 bp

Range of separation in 1X TBE: 0.6%: 15,000-1000 bp 0.8%: 10,000-500 bp 1.0%: 7000-250 bp 1.2%: 5000-200 bp 1.5%: 3000-100 bp 2.0%: 2000-50 bpApplications:•Separation of DNA or RNA fragments ≥ 500 bp.•PCR analysis.•Recovery of separated DNA or RNA fragments

from gel.•Blotting applications such as Southerns and

Northerns.CAS #9012-36-6

75817 25gm 100gm 250gm 500gm

Biochemicals

Biochemicals


Agarose - Finger Printing, Genetic Performance CertifiedTM



Guide for Separation Ranges*Agarose – LE (Product No. 32802)

200 400 600 800 1,000 2,000 4,000 6,000 8,000 10,000 12,000 14,000 16,000 18,000 20,000 bp**


0

ULTRAPUREMB GradePRODUCT SPECIFICATIONSForm: Granular, free flowing powderEEO (-m

r): ≤ 0.13

Gel Point (1.5%): 36 ± 1.5°CGel Strength (1%): ≥ 1,400 gm/cm2

Moisture: ≤ 7%Residue on Ignition: ≤ 0.4%Sulfate (SO

4): ≤ 0.14%

Genetic Performance Tests: DNase: Passes test RNase: Passes test Gel Background: Passes test DNA Resolution: Passes test

Applications:•DNA identity applications such as forensic

testing, tissue typing and paternity determination.

•Analytical separation of DNA or RNA fragments.•Suitable for blotting applications.CAS #9012-36-6

32881 100gm 500gm


r): 0.05 - 0.13

Gel Point (1.5%): 36 ± 1.5°CRemelt Point (1.5%): 88 ± 1.5°CGel Strength (1%): ≥ 1200 gm/cm2

Gel Strength (1.5%): ≥ 2500 gm/cm2


4): ≤ 0.14%

DNase: Passes testRNase: Passes testGel Background: Passes test

Agarose - LE

Separation Guidelines:Range of separation in 1X TAE: 0.6%: 20,000-1000 bp 0.8%: 12,000-500 bp 1.0%: 8000-300 bp 1.2%: 6000-200 bp 1.5%: 3500-100 bp 2.0%: 2000-50 bpRange of separation in 1X TBE: 0.6%: 15,000-1000 bp 0.8%: 10,000-500 bp 1.0%: 7000-250 bp 1.2%: 5000-200 bp 1.5%: 3000-100 bp 2.0%: 2000-50 bp

Applications:•Routine separation of DNA or RNA fragments.•PCR analysis.•Blotting applications such as Southerns and

Northerns.•Protein analysis such as immunodiffusion,

rocket assays and immuno electrophoresis.CAS #9012-36-6

32802 25gm 100gm 250gm 500gm

Bioc

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sBiochemicals

16 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0



Guide for Separation Ranges*Agarose – Hi-ResTM, Separation ≤ 1000 bp (Product No. 10132) 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500 bp**


0


r): ≤ 0.12

Gel Point (3%): ≤ 31°CRemelt Point (3%): ≤ 76°CGel Strength (3%): ≥ 500 gm/cm2

Moisture: ≤ 7%Residue on Ignition: ≤ 0.35%

Agarose - Hi-ResTM, Separation < 500 bp

Sulfate (SO4): ≤ 0.11%

DNase: Passes testRNase: Passes testSeparation Guidelines:Range of separation in 1X TAE: 3.0%: 500-80 bp 4.0%: 300-30 bp 5.0%: 200-10 bpNote: Before use, chill gels at 4°C for 20 hours to

achieve best resolution.

Applications:•Highly resolved separation of DNA or RNA

fragments ≤ 500 bp•PCR analysisCAS #9012-36-6

10133 25gm 100gm 500gm


r): ≤ 0.12

Gel Point (3%): ≤ 35.5°CRemelt Point (3%): ≤ 80°CGel Strength (3%): ≥ 1500 gm/cm2

Moisture: ≤ 7%Residue on Ignition: ≤ 0.35%



DNase: Passes testRNase: Passes testSeparation Guidelines:Range of separation in 1X TAE: 1.8%: 1000-500 bp 2.0%: 1500-100 bp 3.0%: 600-150 bp 4.0%: 500-20 bp 4.5%: 350-50 bp 5.0%: 300-10 bp

Range of separation in 1X TBE: 2.0%: 1200-100 bp 3.0%: 700-40 bp 4.0%: 200-20 bp 5.0%: < 100 bpApplications:•Highly resolved separation of DNA or RNA

fragments ≤1000 bp•PCR analysisCAS #9012-36-6

10132 25gm 100gm 500gm

Biochemicals

Biochemicals




Guide for Separation Ranges*Agarose – Hi-ResTM, Separation ≤ 1500 bp (Product No. 10138)

Related Products Buffers & Stock Biochemicals:

Ethidium Bromide32813 1gm 5gm 25gm

Ethidium Bromide Drops75816 5ml




DNA Markers:

PCR Markers, 50 - 2000 bp76710 250µl

DNA Ladder, 100 bp76712 500µl

DNA Ladder, 1 kb Plus76714 500µl

RNA Markers:

RNA Ladder, 0.1 - 1 kb76722 50µl

RNA Marker, 0.2 - 10 kb76724 50µl


r): ≤ 0.12

Gel Point (4%): ≤ 40.5°CRemelt Point (4%): ≤ 93°CGel Strength (1.5%): ≥ 2000 gm/cm2

Gel Strength (4%): ≥ 4200 gm/cm2

Moisture: ≤ 7%Turbidity (1.5%): ≤ 50 Np


Residue on Ignition: ≤ 0.35%Sulfate (SO

4): ≤ 0.11%

DNase: Passes testRNase: Passes testSeparation Guidelines:Range of separation in 1X TAE: 2.0%: 2500 - 700 bp 3.0%: 1200 - 500 bp 4.0%: 700 - 100 bp 5.0%: 250 - 30 bp

Range of separation in 1X TBE: 2.0%: 1500 - 500 bp 3.0%: 800 - 100 bp 4.0%: 500 - 50 bp 5.0%: 250 - 20 bpApplications:•Highly resolved separation of DNA or RNA

fragments ≤ 1500 bp.•PCR analysis.CAS #9012-36-6

10138 25gm 100gm 500gm

Bioc

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sBiochemicals

18 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0


r): ≤ 0.12

Gel Point (1.5%): 24 - 28°CRemelt Point (1.5%): ≤ 65.5°CGel Strength (1%): ≥ 250 gm/cm2



4): ≤ 0.12%

Agarose - Low Melt Separation > 1000 bp, Genetic Performance CertifiedTM

Genetic Performance Tests: DNase: Passes test RNase: Passes test In-Gel Restriction Enzyme Digestion: Passes

test In-Gel Ligation: Passes test DNA Binding: Passes test Gel Background: Passes test DNA Resolution: Passes test Agarase Digestion: Passes testSeparation Guidelines:Range of separation in 1X TAE: 0.75%: 20,000 - 500 bp 1.00%: 16,000 - 300 bp 1.25%: 10,000 - 250 bp 1.50%: 5000 - 200 bp 1.75%: 2500 - 100 bp 2.00%: 1500 - 50 bp

Range of separation in 1X TBE: 0.75%: 12,000 - 500 bp 1.00%: 8000 - 300 bp 1.25%: 4000 - 200 bp 1.50%: 3000 - 150 bp 1.75%: 2000 - 100 bp 2.00%: 1000 - 50 bpApplications:•Enzymatic modification of nucleic acids in

re-melted gels.•Separation of DNA or RNA fragments ≥ 1,000 bp.

•In-gel recovery of nucleic acid fragments.•PCR analysis.•Labile sample procedures.•Suitable for cell culture and cloning applications.CAS #9012-36-6

32830 25gm 100gm



Guide for Separation Ranges*Agarose – Low Melt Separation ≥ 1000 bp, Genetic Performance CertifiedTM (Product No. 32830)

Isolating DNA from low-melting temperature agarose (PNs 32829 & 32830):Follow procedure for preparing an agarose gel and be sure to run the electrophoresis at 4°C to keep the gel from melting. Excise the DNA band of interest and transfer it to a microcentrifuge tube. Cut as close to the DNA band as possible to avoid any unnecessary agarose. Add 5 volumes of 20mM Tris-HCl (pH 8.0), 1mM EDTA (pH 8.0) to the tube with the agarose. Cap the tube and heat for 5 minutes at 65°C. The agarose should melt. Cool the solution to room temperature and add an equal volume of equilibrated phenol. Vortex for 20 seconds and spin at 400 x g for 10 minutes (20°C). Remove the aqueous phase (top) to a new microcentrifuge tube. Re-extract with phenol:chloroform and then with chloroform. Precipitate the final aqueous phase with 0.2 volumes of 10mM ammonium acetate and 2 volumes of ethanol. Recover the DNA by centrifugation.

100 200 300 400 500 600 700 800 900 1,000 2,000 4,000 6,000 8,000 10,000 12,000 14,000 16,000 18,000 20,000 bp**0


Related Products




Biochemicals

Biochemicals



r): ≤ 0.10


Moisture: ≤ 5%Residue on Ignition: ≤ 0.3%Sulfate (SO

4): ≤ 0.12%

Agarose - Low Melt Separation < 1000 bp, Genetic Performance CertifiedTM

Genetic Performance Tests: DNase: Passes test RNase: Passes test In-Gel Restriction Enzyme Digestion: Passes

test In-Gel Ligation: Passes test DNA Binding: Passes test Gel Background: Passes test DNA Resolution: Passes test Agarase Digestion: Passes testSeparation Guidelines:Range of separation in 1X TAE: 2.0%: 1500-100 bp 3.0%: 700-150 bp 4.0%: 300-70 bp 5.0%: 50-10 bp

Range of separation in 1X TBE: 2.0%: 1000-400 bp 3.0%: 500-100 bp 4.0%: 150-10 bp 5.0%: < 30 bpApplications:•Enzymatic modification of nucleic acids in

re-melted gels.•Separation of DNA or RNA fragments ≤ 1,000 bp.

•In-gel recovery of nucleic acid fragments.•PCR analysis.•Labile sample procedures.CAS #9012-36-6

32829 25gm 100gm



Guide for Separation Ranges*Agarose – Low Melt Separation ≤ 1000 bp, Genetic Performance CertifiedTM (Product No. 32829) 10 20 30 40 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500 bp**


0

Related Products Buffers & Stock Biochemicals:

Ethidium Bromide32813 1gm 5gm 25gm

Ethidium Bromide Drops75816 5ml




DNA Markers:

PCR Markers, 50 - 2000 bp76710 250µl

DNA Ladder, 100 bp76712 500µl

DNA Ladder, 1 kb Plus76714 500µl

RNA Markers:

RNA Ladder, 0.1 - 1 kb76722 50µl

RNA Marker, 0.2 - 10 kb76724 50µl

Bioc

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sBiochemicals

�0 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0



Guide for Separation Ranges*Agarose – Pulse Field (PFGE) (Product No. 32901) 200 400 600 800 1,000 2,000 4,000 6,000 8,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 bp**


0


r): ≤ 0.12

Gel Point (1.5%): 36 ± 1.5°CRemelt Point (1.5%): 88 ± 1.5°CGel Strength (1.0%): ≥ 1800 gm/cm2


Moisture: ≤ 10%Turbidity (1.5%): ≤ 40 Np

Agarose - Pulse Field (PFGE)


4): ≤ 0.12%

DNase: Passes testRNase: Passes testSeparation Guidelines:Range of separation in 1X TAE: 0.3%: 40,000 - 3000 bp 0.5%: 22,000 - 2000 bp 0.8%: 15,000 - 1000 bp 1.0%: 10,000 - 500 bp 1.8%: 5000 - 200 bp

Range of separation in 1X TBE: 0.3%: 20,000 - 2000 bp 0.5%: 12,000 - 1500 bp 0.8%: 9000 - 1000 bp 1.0%: 6000 - 500 bp 1.8%: 3000 - 200 bpApplications:•Pulse Field Gel Electrophoresis.•Analytical separation of DNA or RNA fragments.CAS #9012-36-6

32901 25gm 100gm 250gm


r): ≤ 0.12

Gel Point (1%): ≤ 20°CRemelt Point (1%): ≤ 63°C

Agarose - Ultra Low Melt

Gel Strength (2%): ≥ 300 gm/cm2


4): ≤ 0.14%

DNase: Passes testRNase: Passes test

Applications:•Labile sample procedures.•Cell culture and cloning applications

(hybridomas).CAS #9012-36-6

32821 10gm 25gm

Biochemicals

Biochemicals

�1w w w . u s b w e b . c o m

Agarose - PFGE Plugs

ULTRAPUREMB GradePRODUCT SPECIFICATIONSForm: Granular, free-flowing powderGel Point (1.5%): ≤ 30°CRemelt Point (1.5%): ≤ 70°CMoisture: ≤ 10%DNase: Passes testApplication:•Pulse Field Gel ElectrophoresisCAS #9012-36-6

32903 1gm

Agarose - Fine Resolution


r): ≤ 0.05


Moisture: ≤ 10%Sulfate: ≤ 0.10%DNase: Passes testRNase: Passes testCAS #9012-36-6

73422 25gm 100gm

Agarose - High Gel Strength


r): ≤ 0.12




4): ≤ 0.12%

DNase: Passes testRNase: Passes testApplication:•Analytical separation of DNA or RNA fragmentsCAS #9012-36-6

32880 25gm 100gm 250gm

Agarose - HE

ULTRAPUREPRODUCT SPECIFICATIONSForm: Granular, free-flowing powderEEO (-m

r): 0.23 - 0.26




4): ≤ 0.2%

Applications:•Counter current electrophoresis•ImmunodiffusionCAS #9012-36-6

32804 25gm 100gm 250gm 500gm

Agarose - HEEO


r): ≥ 0.30



Moisture: ≤ 7%Sulfate (SO

4): ≤ 0.2%

Applications:•Counter current electrophoresis•Suitable for electro immunoassays such as

rocket assays•Suitable for immunodiffusionCAS #9012-36-6

32835 25gm 100gm 250gm 500gm

Agarose - HGT


r): ≤ 0.14




4): ≤ 0.2%

DNase: Passes testRNase: Passes testApplications:•Cell culture and cloning applications

(hybridomas)•Counter current electrophoresis•Suitable for electro immunoassays such as

rocket assays•Suitable for immunodiffusionCAS #9012-36-6

32805 25gm 100gm 250gm 500gm

Agarose - ME


r): 0.16 - 0.19




4): ≤ 0.2%

Applications:•High resolution protein electrophoresis•Immunoelectrophoresis•Electro immunoassays such as rocket assays•Counter current electrophoresisCAS #9012-36-6

32803 25gm 100gm 250gm 500gm

Bioc

hem

ical

sBiochemicals

�� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Agarose-CollagenPRODUCT SPECIFICATIONSForm: Soluble collagen packed in gelConcentration: ≥ 3 mg collagen/ml gelStorage: 4°C. Do not freeze.

10682 10ml

Alanine Aminotransferase, Recombinant(r-hALT)

Source: Human recombinant from E. coliPRODUCT SPECIFICATIONSForm: Suspension in 40mM sodium acetate

buffer (pH 5.5), 1mM DTT, 1mM EDTA, 5mM 2-oxoglutarate, 0.1mM pyridoxal-5'-phosphate

Specific Activity: ≥ 500 units/mg proteinPurity: Single band at 55k, as determined by

SDS-PAGE under reducing conditionsFormula Weight: 54,479/subunit as determined

from amino acid sequenceStorage: -20°C

26007 100units

β-AlanineNH

2CH

2CH

2COOH

Formula Weight: 89.09PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (as is)Identity: By IRChromatography (TLC): HomogeneousLoss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.2%Ammonia (NH

4): ≤ 0.1%

Chloride (Cl): ≤ 0.04%Sulfate (SO

4): ≤ 0.05%

CAS #107-95-9

10665 1kg 5kg

D-AlanineCH

3CH(NH

2)COOH

Formula Weight: 89.09PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: ≥ 98.5%Identity: By IRChromatography (TLC): Homogeneous[α]20

D : -13.7° to -15.0° (c=10 in 6N HCl)

Loss on Drying: ≤ 0.3%Heavy Metals (Pb): ≤ 0.002%Arsenic (As): ≤ 1 ppmIron (Fe): ≤ 10 ppmCAS #338-69-2

10675 5gm 25gm 100gm

DL-α-AlanineCH

3CH(NH

2)COOH

Formula Weight: 89.09PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5%Chromatography (TLC): HomogeneousIdentity: By IRLoss on Drying: ≤ 0.3%Residue on Ignition: ≤ 0.2%Chloride (Cl): ≤ 0.021%Sulfate (SO

4): ≤ 0.03%

Ammonia (NH4): ≤ 0.02%

Iron (Fe): ≤ 30 ppmHeavy Metals: ≤ 10 ppmCAS #302-72-7

10685 1kg 5kg 25kg

L-Alanine, High PurityCH

3CH(NH

2)COOH

Formula Weight: 89.09PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (dry basis): ≥ 99.0%Identity: By IRChromatography (TLC): HomogeneouspH (2.5%, H

2O): 5.5 - 7.0

[α]25D : +13.7° to +15.1° (c=10, 6N HCl)

Loss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 0.001%Ammonium (NH

4): ≤ 0.02%

Arsenic (As): ≤ 1 ppmChloride (Cl): ≤ 0.02%Iron (Fe): ≤ 0.001%Sulfate (SO

4): ≤ 0.02%

CAS #56-41-7

10703 25gm 100gm 1kg

L-AlanineUSBioAnalyzedCH

3CH(NH

2)COOH

Formula Weight: 89.09PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (dry basis): 98.5 - 101.5% C

3H

7NO

2

Chromatographic Purity: Passes testIdentity: By IRpH (5%, H

2O, 25°C): 5.5 - 7.0

[α]25D : +13.7° to +15.1° (c=10 in 6N HCl)

Loss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.15%Heavy Metals (Pb): ≤ 0.0015%Chloride (Cl): ≤ 0.05%Iron (Fe): ≤ 0.003%Sulfate (SO

4): ≤ 0.03%

O.V.I.: Meets requirementsCAS #56-41-7

10705 10gm 25gm 100gm 500gm 1kg

Biochemicals

Biochemicals


Albumin, Bovine, Protease-FreeMB GradeProtease FreeSource: Bovine BloodPRODUCT SPECIFICATIONSForm: Lyophilized powderAssay (electrophoresis): ≥ 98.0%Protein: ≥ 96.0%pH (1%, 0.15M NaCl): 6.8 - 7.2Moisture: ≤ 5.0%Residue on Ignition: ≤ 1.5%Fatty Acids (total): ≤ 0.2 mg/gmIgG: Passes testHeavy Metals (Pb): ≤ 10 ppmProtease: Passes testStorage: 4°CCAS #9048-46-8

10867 10gm 50gm 100gm

Albumin, Bovine, Acetylated(Acetylated BSA)

ULTRAPUREMB GradeSource: Bovine BloodPRODUCT SPECIFICATIONSForm: Clear, colorless solution in deionized

water; packed under aseptic, nuclease-free conditions.

Assay: Single band by SDS-polyacrylamide gel electrophoresis

Protein Concentration: 25 - 50 mg/mlContaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes testFunctional Test: No inhibition by albumin on

digestion of lambda DNA.Form: Many nucleases are irreversibly inactivated

by acetylation, but the stabilizing action of BSA is unaffected by this procedure.(1,2) Thus, acetylation ensures that the use of albumin does not introduce additional nucleases to reaction mixture.

Solubility: Soluble in waterApplication:•Bovine Serum Albumin is used extensively

by molecular biologists to stabilize labile enzymes such as restriction endonucleases, polymerases and ligases.

References:1. Epstein, C. J. and Goldberger, R. F. (1964)

J. Biol. Chem. 239, 1087-1089.2. Lackey, D. and Linn, S. (1980) Meth. in

Enzymol., 65, 26-28.Storage: -20°CCAS #9048-46-8

10848 25mg 125mg

Albumin, Bovine, Crystallized, pH 5.2Source: Bovine BloodPRODUCT SPECIFICATIONSForm: Crystallized powderAssay (electrophoresis): ≥ 99%Identity: By IRProtein: ≥ 98%pH (7%, 0.15M NaCl): 5.0 - 5.4Moisture (KF) when packaged: ≤ 5.0%Sodium (Na): 0 - 5.0 mg/gmChloride (Cl): 0 - 3.0 mg/gmStorage: -20°CCAS #9048-46-8

10856 1gm 5gm 10gm 100gm

Albumin, Bovine, Cohn Fraction V, pH 5.2(Cold Alcohol Fractionated)

Source: Bovine BloodPRODUCT SPECIFICATIONSForm: Lyophilized powderAssay (electrophoresis): ≥ 96%Protein: ≥ 95%pH (1%, H

2O): 5.0 - 5.4

Residue on Ignition: ≤ 1.5%Loss on Drying: ≤ 6.0%Heavy Metals (Pb): ≤ 50 ppmStorage: 4°C, desiccatedCAS #9048-46-8

10852 50gm 100gm 500gm

Albumin, Bovine, pH 7(Heat-Shock Fractionated)

Source: Bovine BloodPRODUCT SPECIFICATIONSForm: Lyophilized powderAssay (electrophoresis): ≥ 98%Protein: ≥ 96.0%pH (2%, H

2O): 6.5 - 7.5

Loss on Drying: ≤ 5.0%Residue on Ignition: ≤ 2.0%Storage: 4°CCAS #9048-46-8

10857 10gm 50gm 100gm 500gm 1kg

Albumin, Bovine, Fatty Acid Poor, pH 7(Heat-Shock Fractionated)

Source: Bovine BloodPRODUCT SPECIFICATIONSForm: Lyophilized powderAssay (electrophoresis): ≥ 98%Protein: ≥ 96%pH (1%, H

2O): 6.8 - 7.2

Residue on Ignition: ≤ 2.0%Loss on Drying: ≤ 5.0%Free Fatty Acids: ≤ 1.0 mg/gmEsterified Fatty Acids: ≤ 1.0 mg/gmStorage: 4°C, desiccatedCAS #9048-46-8

10858 1gm 5gm 10gm 25gm 100gm

Albumin, Bovine, RIA Grade, pH 7Source: Bovine BloodPRODUCT SPECIFICATIONSForm: Lyophilized powderAssay (electrophoresis): ≥ 98.0%Protein: ≥ 96.0%pH (1%. 0.15M NaCl): 6.8 - 7.2Loss on Drying: ≤ 5.0%Residue on Ignition: ≤ 2.0%IgG: NegativeInsulin: NegligibleFolic Acid: NegligibleT

3, T

4: Negligible

Application:•Suitable for use in radioimmuno assayStorage: 4°CCAS #9048-46-8

10868 5gm 10gm 50gm 100gm

Bioc

hem

ical

sBiochemicals

�� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Albumin, Bovine, Low EndotoxinSource: Bovine BloodPRODUCT SPECIFICATIONSForm: Off-white to pale green powderAssay: ≥ 98.0% Albumin (electrophoresis)Protein: ≥ 97% (dry basis)pH (2%, H

2O): 6.5 - 7.5

Endotoxin: ≤ 2.0 Eu/mgHeavy Metals: ≤ 50 ppmLoss on Drying: ≤ 5.0%Residue on Ignition: ≤ 2.0%Solubility (7%, H

2O): Clear, colorless

Application: •Used as a blocking agent or enzyme diluent

for sensitive assays where contaminating proteases would compromise assay results.


10893 10gm 50gm

Albumin, Bovine, 22% SolutionSource: Bovine BloodAseptically filled. Contains 0.1% Sodium Azide as

a preservative.Storage: 4°C

10864 10ml 50ml

Albumin, Bovine, pH 7, Australian Origin

Reagent GradePRODUCT SPECIFICATIONSForm: Lyophilized powderSource: Bovine BloodAssay (electrophoresis): ≥ 98.0%Protein: ≥ 96.0%pH (6%, H

2O): 6.5 - 7.2

Moisture: ≤ 5.0%Residue on Ignition : ≤ 3.0%Fatty Acid: ≤ 0.05%Immunoglobulin: ≤ 0.05%Protease: Passes testStorage: 4°C

10871 5gm 25gm 100gm

Albumin, Bovine, Standard Powder, pH 7, Australian Origin

PRODUCT SPECIFICATIONSForm: Lyophilized powderSource: Bovine BloodAssay (electrophoresis): ≥ 98.0%Protein: ≥ 96.0%pH (6%, H

2O): 6.5 - 7.2

Moisture: ≤ 5.0%Residue on Ignition: ≤ 3.0%Storage: 4°C

10869 5gm 25gm 100gm 500gm

Albumin, Egg(Ovalbumin)

Source: Egg White, Spray DriedPRODUCT SPECIFICATIONSForm: Off-white crystalsProtein (as is): ≥ 80%pH: 6.5 - 8.0Moisture: ≤ 8.0%Salmonella: NegativeCAS #9006-59-1

15460 1lb 5lb 25lb

Albumin, Egg(Ovalbumin)

Source: Chicken EggPRODUCT SPECIFICATIONSForm: White to pale yellow freeze dried powderAssay: ≥ 98.0% (as confirmed by SDS-PAGE)Moisture: ≤ 6.0%Solubility: Soluble in distilled water or dilute

bufferStorage: -20°CCAS #9006-59-1

10865 1gm 5gm

Albumin, Fraction V, Fatty Acid PoorSource: Human BloodPRODUCT SPECIFICATIONSForm: Lyophilized powderAssay (electrophoresis): ≥ 95%Protein: ≥ 96%Moisture (KF): ≤ 5.0%pH (7%, H

2O): 6.8 - 7.2

Sodium (Na): ≤ 15.0 mg/gmChloride (Cl): ≤ 12.0 mg/gmFatty Acids: ≤ 1 mg/gmStorage: 4°C

10881 500mg 1gm

Albumin, Human, Fraction VSource: Human BloodPRODUCT SPECIFICATIONSForm: Lyophilized powderAssay: ≥ 95% albumin (electrophoresis)Protein: ≥ 95%Note: All units of plasma are tested and found

to be negative for antibody to Human T cell Lymphotropic Virus type III (anti-HTLV III) by Elisa and for Hepatitis B Surface Anitgen (HBsAg) by Elisa.


10878 500mg 1gm 5gm 10gm 100gm

Alcohol Dehydrogenase(E.C.1.1.1.1)Source: YeastPRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: ≥ 300 units/mg proteinUnit Definition: One unit reduces 1 µmol NAD/min

at 25°C, pH 8.8.Contaminating Activities:Carboxylase: ≤ 0.05%GAPDH: ≤ 0.05%PGK: ≤ 0.05%MK: ≤ 0.03%Aldolase: ≤ 0.02%PK: ≤ 0.01%LDH: ≤ 0.01%Storage: -20°C

10895 15,000units 75,000units

Biochemicals

Biochemicals


Aldolase(E.C.4.1.2.13)Source: Rabbit MusclePRODUCT SPECIFICATIONSForm: Ammonium sulfate suspensionActivity: ≥ 10 units/mg proteinUnit Definition: One unit will convert 1.0 µmol of

Fructose-1,6-Diphosphate to Dihydroxyacetone Phosphate and Glyceraldehyde-3-Phosphate per minute at pH 7.4 and 25°C.

Storage: 4°C

10900 50mg 100mg

Alizarin Red SC

14H

7O

7SNa

Formula Weight: 342.26pH range (acid): 4.0 (yellow) - 6.0 (orange-red)pH range (alkaline): 6.0 (orange-red) - 12.0

(violet)CAS #130-22-3

10910 25gm 100gm

Amido Black 10B(Naphthol Blue Black)

(C.I.20470)C

22H

14N

6O

9S

2Na

2

Formula Weight: 616.49PRODUCT SPECIFICATIONSForm: Dark purple/blue powderIdentity: By IRApplications:•Staining protein in paper chromatography•Histological stain for hemoglobinCAS #1064-48-8

32809 100gm

Aminoacetic AcidSee Glycine, page 235

D-Amino Acid Oxidase(E.C.1.4.3.3)Source: Porcine KidneyForm: Lyophilized powderUnit Definition: One unit oxidizes 1 µmol of

D-Alanine/min at 25°C, pH 8.3.Storage: 4°CCAS #9000-88-8

11030 5mg 25mg

L-Amino Acid Oxidase(E.C.1.4.3.2)Source: Crotalus adamanteus venomForm: Aqueous solutionUnit Definition: One unit oxidizes 1 µmol of

L-Leucine/min at 25°C, pH 7.6.Storage: 4°C

11040 2mg 5mg

DL-α-Amino Adipic AcidStorage: 4°CCAS #542-32-5

11045 250mg 1gm 5gm

4-Amino AntipyreneC

11H

13N

3O

Formula Weight: 203.24PRODUCT SPECIFICATIONSForm: Pale yellow to light amber crystalline

powderAssay: ≥ 98.0%Identity: By IRSolubility (5%, H

2O): Clear solution

Melting Point: 109 ± 2°CCAS #83-07-8

11056 10gm 50gm 100gm

p-Amino Benzoic Acid (PABA)USBioAnalyzedC

7H

7NO

2

Formula Weight: 137.14PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay (dry basis): 98.5 - 101.5%Identity (A, B): Passes testsMelting Point: 186 - 189°CLoss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 0.002%Volatile Diazotizable Substances: ≤ 0.002%Ordinary Impurities: Passes testCAS #150-13-0

11055 200gm 500gm 1kg 5kg

L- -Amino-N-Butyric AcidCH

3CH

2CH(NH

2)COOH

Formula Weight: 103.12PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (as is)Identity: By IRChromatography (TLC): HomogeneousMoisture (KF): ≤ 1%CAS #1492-24-6

11079 1gm 5gm

2-Aminoethane Sulfonic AcidSee Taurine, page 294

α-Aminoglutaric AcidSee Glutamic Acid, page 231

2-Amino-6-HydroxypurineSee Guanine, page 237

4-Amino-2-HydroxypyrimidineSee Cytosine, page 213

DL-β-Amino-Iso-Butyric AcidH

2NCH

2CH(CH

3)COOH


11160 1gm 25gm

∆-Aminolevulinic Acid, HydrochlorideC

5H

9NO

3•HCl

Formula Weight: 167.59Storage: -20°CCAS #5451-09-2

11170 100mg 500mg 1gm

Bioc

hem

ical

sBiochemicals

�6 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

2-Amino-2-Methyl-1-Propanol(AMP)

CH3C(CH

3)(NH

2)CH

2OH

Formula Weight: 89.14PRODUCT SPECIFICATIONSForm: Clear, viscous liquidAssay: ≥ 95.0% (as is)Identity: By IRSolubility (10%, H

2O): Passes test

CAS #124-68-5

11186 100gm 500gm

2-Aminopurine, Free BaseC

5H

5N

5


11235 100mg 250mg 1gm

6-Amino PurineSee Adenine, page 173

Aminosuccinic AcidSee Aspartic Acid, page 194

3-Amino-1,2,4-TriazoleC

2H

4N

4


11245 25gm 100gm

Ammonium Acetate

ULTRAPUREACS Reagent GradeCH

3COONH

4

Formula Weight: 77.08PRODUCT SPECIFICATIONSForm: White/clear crystalsAssay: ≥ 97.0%pH (5%, H

2O): 6.7 - 7.3

Insoluble Matter: ≤ 0.005%Residue on Ignition: ≤ 0.01%Chloride (Cl): ≤ 5 ppmNitrate (NO

3): ≤ 0.001%

Sulfate (SO4): ≤ 0.001%

Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 5 ppmSolubility (5M, H

2O): Clear, colorless

Applications:•Used in the precipitation of DNA•Said to help decrease the co-precipitation of

dNTPs•Asymmetric PCR precipitationStock Solution, 7.5M: Ammonium Acetate: 289 gm dH

2O:175 ml

Adjust volume with water to 500 ml. Filter sterilize.CAS #631-61-8

11251 500gm 1kg

Ammonium Acetate (NH4OAc), 5M Solution

ULTRAPUREMB GradeForm: 5M solution of ammonium acetate

(NH4OAc) in high purity dH

2O. Solution is

0.2 µm filtered and dispensed into durable, square Nalgene bottles.

Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test

75901 100ml 500ml

Ammonium ChlorideACS Reagent GradeNH

4Cl

Formula Weight: 53.49PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.5%pH (5%, H

2O, 25°C): 4.5 - 5.5

Insoluble Matter: ≤ 0.005%Residue on Ignition: ≤ 0.01%Calcium (Ca): ≤ 0.001%Magnesium (Mg): ≤ 5 ppmHeavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 2 ppmPhosphate (PO

4): ≤ 2 ppm

Sulfate (SO4): ≤ 0.002%

11248 500gm 2.5kg

Ammonium Citrate, Dibasic, Anhydrous

ACS Reagent Grade(NH

4)2HC

6H

5O

7

Formula Weight: 226.19PRODUCT SPECIFICATIONSForm: CrystallineAssay: 98.0 - 103.0%Insoluble Matter: ≤ 0.005% Residue on Ignition: ≤ 0.01% Chloride (Cl): ≤ 0.001%Heavy Metals (Pb): ≤ 5 ppm Iron (Fe): ≤ 0.001% Oxalate (C

2O

4): Passes test

Phosphate (PO4): ≤ 5 ppm

Sulfur Compounds (SO4): ≤ 0.005%

11234

Ammonium Iron (III) Citrate, BrownSee Ferric Ammonium Citrate, Brown, page 226

Ammonium Iron (III) Citrate, GreenSee Ferric Ammonium Citrate, Green, page 226

Biochemicals

Biochemicals


Ammonium Molybdate, TetrahydrateACS Reagent Grade(NH

4)6Mo

7O

24•4H

2O

Formula Weight: 1235.86PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 81.0 - 83.0%Insoluble Matter: ≤ 0.005%Chloride (Cl): ≤ 0.002%Nitrate (NO

3): Passes test

Arsenate, Phosphate, and Silicate (SiO2):

≤ 0.001%Phosphate (PO

4): ≤ 5 ppm


Heavy Metals (Pb): ≤ 0.001%Magnesium (Mg): ≤ 0.005%Potassium (K): ≤ 0.002%Sodium (Na): ≤ 0.01%CAS #12027-67-7

11252 500gm 2.5kg

Ammonium Persulfate (APS)(Ammonium Peroxydisulfate)

ULTRAPUREACS Reagent Grade(NH

4)2S

2O

8

Formula Weight: 228.19PRODUCT SPECIFICATIONSForm: Off-white crystalline powderAssay: ≥ 98.0%Residue on Ignition: ≤ 0.05%Insoluble Matter: ≤ 0.005%Titratable Free Acid: ≤ 0.04 meq/gmChloride and Chlorate (Cl): ≤ 0.001%Heavy Metals (Pb): ≤ 0.005%Iron (Fe): ≤ 0.001%Manganese (Mn): ≤ 0.5 ppmApplication:•A high speed initiator used to catalyze

acrylamide polymerizationWorking Stock Solution (10%): Ammonium Persulfate: 1 gm dH

2O: to 10 ml

This solution should be stored at 4°C and prepared fresh weekly.

CAS #7727-54-0

76322 10gm 100gm 1kg

Ammonium Phosphate, DibasicACS Reagent Grade(NH

4)2HPO

4

Formula Weight: 132.06PRODUCT SPECIFICATIONSForm: CrystallineAssay: ≥ 98.0%pH (5%, H

2O, 25°C): 7.7 - 8.1

Insoluble Matter: ≤ 0.005%Ammonium Hydroxide Precipitate: ≤ 0.005%Chloride (Cl): ≤ 0.001%Nitrate (NO

3): ≤ 0.003%


Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.001%Potassium (K): ≤ 0.005%Sodium (Na): ≤ 0.005%

11247 500gm 2.5kg

Ammonium Phosphate, MonobasicACS Reagent GradeNH

4H

2PO

4


2O, 25°C): 3.8 - 4.4

Insoluble Matter: ≤ 0.005%Ammonium Hydroxide Precipitate: ≤ 0.005%Chloride (Cl): ≤ 5 ppmNitrate (NO

3): ≤ 0.001%


Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 0.001%Potassium (K): ≤ 0.005%Sodium (Na): ≤ 0.005%

11249 500gm 2.5kg

Ammonium Sulfate

ULTRAPUREACS Reagent Grade(NH

4)2SO

4


2O, 25°C): 5.0 - 6.0

Insoluble Matter: ≤ 0.005%Residue on Ignition: ≤ 0.005%Chloride (Cl): ≤ 5 ppmNitrate (NO

3): ≤ 0.001%


Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 5 ppmApplication:•Used in the purification of enzymes and other

proteins by precipitationCAS #7783-20-2

11254 1kg 5kg

Amoxicillin, TrihydrateC

16H

19N

3O

5S•3H

2O

Formula Weight: 419.45PRODUCT SPECIFICATIONSForm: White to off-white powderActivity: 900 - 1050 µg of C

16H

19N

3O

5S/mg

(dry basis)Identity: By IRCrystallinity: Meets requirementspH (2 mg/ml): 3.5 - 6.0 (c=2 in H

2O)

Water: 11.5% to 14.5%Dimethylaniline: Meets requirementsCAS #61336-70-7

11256 10gm 25gm

AMPSee Adenosine-5'-Monophosphate, Disodium

Salt, page 174

Bioc

hem

ical

sBiochemicals

�8 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Ampicillin, Trihydrate

ULTRAPUREUSBioAnalyzedC

16H

19N

3O

4S•3H

2O

Formula Weight: 403.45 (trihydrate)PRODUCT SPECIFICATIONSForm: White crystalline powderActivity: 900 - 1050 µg of C

16H

19N

3O

4S/mg

(dry basis)Activity: 765 - 924 µg of C

16H

19N

3O

4S/mg (as is)

Identity: By IRpH (10 mg/ml, H

2O): 3.5 - 6.0

Water: 12-15% (trihydrate)Dimethylaniline: Meets requirementCrystallinity: Meets requirementsMode of Action: Binds to and inhibits many of the

enzymes in the bacterial membrane that are involved in cell wall synthesis.

Stock Solution: 50 mg/ml in H

2O

Titrate slowly with 0.5M NaOH until dissolved. Working Concentration: 20 - 60 µg/mlCAS #7177-48-2

11257 5gm 25gm 100gm 1kg

Ampicillin, Sodium Salt


16H

18N

3NaO

4S

Formula Weight: 371.39PRODUCT SPECIFICATIONSForm: White to off-white powderActivity: 845 µg - 988 µg of C

16H

19N

3O

4S/mg

(dry basis)Activity: 828 µg - 988 µg of C

16H

19N

3O

4S/mg

(as is)Identity (A, B): Passes testspH (10 mg/ml): 8.0 - 10.0Moisture (KF): ≤ 2.0%Dimethylaniline: Meets requirementsMethylene chloride: ≤ 0.2%Storage: Controlled room temperature, in tight

containers.CAS #69-52-3

11259 5gm 25gm 100gm

-Amylase(E.C.3.2.1.1)Source: Bacillus subtilisPRODUCT SPECIFICATIONSForm: Light tan to brown colored powderStorage: 4°C

10990 25gm 50gm 100gm 500gm

α-Amylase(E.C.3.2.1.1)Source: Porcine PancreasForm: Suspension in 0.5M saturated sodium

chloride (pH 7.0) with 3mM calcium chloride.PRODUCT SPECIFICATIONSActivity: ≥ 1800 units/mg proteinUnit Definition: One unit produces 1 µmol of

reducing groups from soluble starch/min at 25°C, pH 6.9.

Storage: 4°C

10995 25mg 50mg 100mg

AmylopectinSource: CornPRODUCT SPECIFICATIONSForm: White powderIdentity: By IRpH (10% dispersion in cold H

2O): 4.5 - 6.5

Loss on Drying: ≤ 12%CAS #9037-22-3

11270 1kg

Antibiotic G-418 SulfateSee G-418 Sulfate, page 228

Antimycin AStorage: 4°CCAS #1397-94-0

11375 10mg 25mg 50mg 100mg

Aprotinin

ULTRAPURESource: Bovine LungC

284H

432N

84O

79S

7

Formula Weight: 6512PRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: ≥ 6000 Kallikrein Inhibitor units/mg

proteinPurity (electrophoresis): Single bandLoss on Drying: ≤ 6.0%Applications:•A useful protease inhibitor against kallikrein,

trypsin, plasmin and chymotrypsin•Not effective against papainWorking Concentration: 1-2 mg/ml Soluble in 0.01M HEPES (pH 8.0)Note: Avoid repeated freezing and thawing of

stock solutions.Storage: 4°C in air-tight containers.CAS #9087-70-1

11388 10mg 25mg 100mg

D-(–)-ArabinoseC

5H

10O

5


11395 25gm 100gm

DL-ArabinoseC

5H

10O

5


11400 10gm

Biochemicals

Biochemicals


L- (+)-ArabinoseC

5H

10O

5

Formula Weight: 150.13PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay (GC): ≥ 96%Loss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.5%Chloride (Cl): ≤ 100 ppmSulfate (SO

4): ≤ 100 ppm

Arsenic (As): ≤ 3 ppmIron (Fe): ≤ 50 ppmHeavy Metals (Cu): ≤ 5 ppmCAS #5328-37-0

11405 25gm 100gm 1kg

L-ArabinoseHigh Purity GradeC

5H

10O

5

Formula Weight: 150.13PRODUCT SPECIFICATIONSForm: White crystalline powder[α]20

D : +103.0° ± 1.5° (c=4 in H

2O, NH

3)

Loss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Arsenic (As): ≤ 0.5 ppmIron (Fe): ≤ 5 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #5328-37-0

11406 25gm 100gm 1kg

ArbutinC

12H

16O

7

Formula Weight: 272.25PRODUCT SPECIFICATIONSForm: White powderIdentity: By IR[α]25

D : -63° to -66° (c=3 in H

2O)

Moisture (KF): ≤ 5.0%CAS #497-76-7

11450 5gm 10gm 25gm 100gm

D-Arginine, HydrochlorideC

6H

14N

4O

2•HCl

Formula Weight: 210.66PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: 99.0% - 101.0%Residue on Ignition: ≤ 0.1%CAS #627-75-8

11475 1gm 5gm 10gm

DL-Arginine, HydrochlorideNH

2C(NH)NH(CH

2)3CH(NH

2)COOH•HCl

Formula Weight: 210.66PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98%Chromatography (TLC): HomogeneousIdentity: By IRLoss on Drying: ≤ 8.0%Storage: 4°CCAS #7200-25-1

11480 5gm 25gm 100gm

L-ArginineC

6H

14N

4O

2

Formula Weight: 174.20PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5%Identity: By IR[α]20

D : +26.9° to +27.9° (c=8 in 6N HCl)

Loss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.3%Heavy Metals (Pb): ≤ 15 ppmAmmonium (NH

4): ≤ 0.02%

Arsenic (As2O

3): ≤ 1 ppm

Chloride (Cl): ≤ 0.05%Iron (Fe): ≤ 30 ppmSulfate (SO

4): ≤ 0.03%

CAS #74-79-3

11490 100gm 500gm 1kg

L-Arginine, HydrochlorideNH

2C(NH)NH(CH

2)3CH(NH

2)COOH•HCl

Formula Weight: 210.66PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 101.5%Chromatography (TLC): HomogeneousIdentity: By IR[α]20

D : +21.4° to +23.6° (c=8 in 6N HCl)

Loss on Drying: ≤ 0.20%Residue on Ignition: ≤ 0.10%Chloride (Cl): 16.5 to 17.1%Sulfate (SO

4): ≤ 0.03%

Heavy Metals (Pb): ≤ 20 ppmO.V.I.: Meets requirementsCAS #1119-34-2

11500 100gm 500gm 1kg

L-Ascorbic Acid(Vitamin C)

USBioAnalyzedC

6H

8O

6

Formula Weight: 176.12PRODUCT SPECIFICATIONSForm: White to slightly yellow crystalline powderAssay: 99.0 - 100.5%Identity A: By KBrIdentity B: Passes test[α]25

D : +20.5° to +21.5° (c=10 in H

2O)

Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 0.002%O.V.I.: Meets requirementsCAS #50-81-7

11545 500gm 1kg 5kg

Ascorbyl PalmitateC

22H

38O

7

Formula Weight: 414.53PRODUCT SPECIFICATIONSForm: White to pale yellow crystalline powderAssay: ≥ 95.0% (dry basis)[α]25

D : +21° to +24° (c=1 in Ethanol)

Melting Point: 109 - 117°CLoss on Drying: ≤ 2.0%Residue on Ignition: ≤ 0.1%Arsenic (As): ≤ 3 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #137-66-6

11570 1kg

Bioc

hem

ical

sBiochemicals

30 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

D-AsparagineNH

2COCH

2CH(NH

2)COOH•H

2O

Formula Weight: 150.13

11580

DL-Asparagine, MonohydrateNH

2COCH

2CH(NH

2)COOH•H

2O

Formula Weight: 150.13PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Identity: By IRChromatography (TLC): HomogeneousLoss on Drying: ≤ 12%CAS #3130-87-8

11585 100gm 1kg 5kg

L-Asparagine, AnhydrousNH

2COCH

2CH(NH

2)COOH

Formula Weight: 132.12PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5%Chromatography (TLC): HomogeneousIdentity: By IR[α]20

D : +33° to +36° (c=2 in 10% HCl)

Loss on Drying: ≤ 1.0%CAS #70-47-3

11590 100gm 500gm 1kg

L-Asparagine, MonohydrateC

4H

8N

2O

3•H

2O

Formula Weight: 150.13PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (as is)Identity: By IRChromatography (TLC): Homogeneous[α]20

D : +33° to +36° (c=10 in 3N HCl)

Loss on Drying: ≤ 12.5%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 10 ppmArsenic (As): ≤ 3 ppmIron (Fe): ≤ 20 ppmSulfate (SO

4): ≤ 0.025%

Lead (Pb): ≤ 5 ppmCAS #5794-13-8

11595 100gm 1kg 5kg

D-Aspartic Acid(D-Amino-Succinic Acid)

HOOCCH2CH(NH

2)COOH

Formula Weight: 133.10PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Identity: By IRChromatography (TLC): Homogeneous[α]20

D : -25.9° to -27.0° (c=10 in 2N HCl)


11600 25gm 100gm

DL-Aspartic Acid(DL-Amino-Succinic Acid)

HOOCCH2CH(NH

2)COOH

Formula Weight: 133.10PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5%Identity: By IRChromatography (TLC): HomogeneousLoss on Drying: ≤ 0.3%CAS #617-45-8

11605 1kg

L-Aspartic AcidC

4H

7NO

4


D : +24.5° to +26.0° (c=8 in 6N HCl)

Loss on Drying: ≤ 0.25%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 10 ppmArsenic (As): ≤ 3 ppmCAS #56-84-8

11620 100gm 1kg 5kg

L-Aspartic AcidCP GradeNH

2CH(COOH)CH

2COOH


D : +24.5° to +25.5° (c=8 in 6N HCl at 20°C)

Loss on Drying: ≤ 0.3%Residue on Ignition: ≤ 0.1%Sulfate (SO

4): ≤ 0.02%

Heavy Metals (Pb): ≤ 10 ppmArsenic (As): ≤ 1 ppmChloride (Cl): ≤ 0.02%Iron (Fe): ≤ 10 ppmAmmonium (NH

4): ≤ 0.02%

CAS #56-84-8

11625 100gm 1kg

L-Aspartic Acid, Monopotassium Salt(Potassium Aspartate)

C4H

6NO

4K

Formula Weight: 171.19PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0%Identity: By IRpH (10%, H

2O): 5.5 - 7.5

[α]20D : +17.1° to +20.5° (as is) (c=8 in 6N HCl)

Loss on Drying (110°C): ≤ 10.0%Heavy Metals (Pb): ≤ 10 ppmArsenic (As

2O

3): ≤ 1 ppm

Storage: Protect from moisture in air-tight containers; material is very hygroscopic.

CAS #1115-63-5

11630 100gm 1kg

Biochemicals

Biochemicals


L-Aspartic Acid, Sodium Salt, Monohydrate(Sodium Aspartate)

NH2CH(COOH)CH

2COONa•H

2O

Formula Weight: 173.10PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (dry basis)Identity: By IRChromatography (TLC): Homogeneous[α]20

D : +18° to +21° (c=8 in 6N HCl, dry basis)

Loss on Drying: ≤ 0.5%Heavy Metals (Pb): ≤ 10 ppmArsenic (As): ≤ 1 ppmChloride (Cl): ≤ 0.05%Iron (Fe): ≤ 30 ppmSulfate (SO

4): ≤ 0.05%

CAS #3792-50-5

11635 100gm 1kg

L-Aspartic Acid, Magnesium Salt, Dihydrate

(C4H

6NO

4)2Mg•2H

2O

Formula Weight: 324.53 (dihydrate)PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 95.0% (dry basis)[α]20

D : +22° to +25° (c=8 in 6N HCl, dry basis)

Moisture (KF): ≤ 17%Heavy Metals (Pb): ≤ 10 ppmArsenic (As

2O

3): ≤ 1 ppm


4): ≤ 0.050%

Iron (Fe): ≤ 30 ppmCAS #2068-80-6

11631 25gm 100gm 1kg

ATPSee Adenosine-5'-Triphosphate, page 174

AuxinSee 2,4-Dichlorophenoxyacetic Acid, page 220 Indole-3-Acetic Acid, page 242 Indole-3-Butyric Acid, page 242 Indole-3-Butyric Acid Potassium Salt, page 242 α-Naphthalene Acetic Acid, page 260 β-Naphthoxyacetic Acid, page 260

AvidinAntagonist - BiotinSource: Egg WhiteUnit Definition: One unit will bind 1 µg of Biotin

at pH 8.9.Storage: 4°C

11680 1mg 5mg 10mg 100mg

Avidin-Streptavidin(Streptavidin)

Source: Streptomyces avidiniPRODUCT SPECIFICATIONSForm: White, lyophilized powderActivity: 11 to 16 units/mgPurity: ≥ 95%Unit Definition: One unit is that amount of protein

required to bind one microgram of D-biotin.Applications:•A tetrameric protein containing four high affinity

binding sites for biotin•Used with biotin in the purification of DNA-

binding proteinsStorage: -20°C, protect from moisture (powder);

4°C (reconstituted)

11681 5mg 10mg

Avidin-Alkaline Phosphatase Conjugate

See Streptavidin-Alkaline Phosphatase Conjugate, page 291

Azo Violet(4-(4-Nitrophenylazo)resorcinol)

C12

H9N

3O

4

Formula Weight: 259.22 PRODUCT SPECIFICATIONSForm: Red, orange or red-orange powderIdentity: By IRSolubility: Passes testVisual Transition Interval: pH 11.0 (yellow) to

pH 13.0 (violet)

19576 25gm 100gm

r-B2MSee B2 Microglobin, Recombinant, page 259

BacitracinUSBioAnalyzedC

66H

103N

17O

16S

Formula Weight: 1422.69PRODUCT SPECIFICATIONSForm: White to pale buff powderActivity: ≥ 40 units of bacitracin/mg (as is)Identity: Passes testpH (10,000 units/ml): 5.5 - 7.5Loss on Drying: ≤ 5.0%CAS #1405-87-4

11805 1gm 5gm 25gm

Bacitracin-ZincUSBioAnalyzedPRODUCT SPECIFICATIONSForm: Tan crystalline powderActivity: ≥ 40 Bacitracin units/mg (as is)Identity: Passes testpH (100 mg/ml [saturated], H

2O): 6.0 - 7.5

Loss on Drying: ≤ 5.0%Zinc Content: 2.0 to 10.0% (dry basis)CAS #1405-89-6

11810 1gm 5gm

Bacterial Culture MediaLB Agar, Ready-Made Powder, page 246LB Broth, Ready-Made Powder, page 247Luria Agar, Ready-Made Powder, page 249Luria Broth, Ready-Made Powder, page 250NZCYM Broth, Ready-Made Powder, page 266Terrific Broth, Ready-Made Powder, page 295YPD Agar, Ready-Made Powder, page 311YPD Broth, Ready-Made Powder, page 3112X YT Agar, page 3112X YT Broth, page 311

Bioc

hem

ical

sBiochemicals

3� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Bacteriological Peptone(Peptones)

ULTRAPUREPRODUCT SPECIFICATIONSForm: PowderMoisture: ≤ 5.0%Ash: 4.0 - 6.65%pH: 6.0 - 7.5Amino Nitrogen: 5.4 - 6.6%Total Nitrogen: 12.4 - 13.8%Protein (N x 6.38): 79.5 - 88.0%An extremely high grade of peptone prepared

specifically for general bacteriological purposes.

CAS #73049-73-7

20048 1lb 5lb 25lb

Bacteriological Peptone II

20042 250gm 1kg 5kg

Basic Fuchsin(Rosaniline Chloride)

(C.I.42510)C

20H

20N

3Cl


32811 10gm 25gm

BCIPSee 5-Bromo-4-Chloro-3-Indolyl Phosphate,

page 200

Benedict’s ReagentPRODUCT SPECIFICATIONSKit Consists of: PN 11885 Premix Benedict’s Reagent Powder PN 13839 Cupric SulfateReagent Solution Preparation:1. Dissolve 273 gm Benedict’s Reagent Powder in

distilled water with heat & q.s. to 850 ml.2. Dissolve 17.4 gm Cupric Sulfate in 100 ml hot

distilled water.3. Mix both solutions with rapid stirring and heat

and q.s. to 1 liter.

11885 1pk(for500tests)

Benzoic AcidC

6H

5COOH

Formula Weight: 122.12PRODUCT SPECIFICATIONSForm: White to off-white crystalline powder or

flakesAssay: ≥ 98.5%Identity: By IRMelting Point: 124 ± 2°CMoisture: ≤ 2.0%CAS #65-85-0

11905 500gm 1kg

Benzoic Acid, Sodium Salt(Sodium Benzoate)

C6H

5COONa

Formula Weight: 144.10PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0% - 100.5% (dry basis)Identification: Passes testAlkalinity: Passes testMoisture (KF): < 1.5%Heavy Metals: ≤ 0.001%O.V.I.: Meets requirementsCAS #532-32-1

11910 500gm 1kg

Benzoyl-DL-Arginine Naphthylamide Hydrochloride

C23

H25

N5O

2•HCl

Formula Weight: 439.94Storage: -20°C

11940 500mg 1gm 5gm 10gm

-N-Benzoyl-DL-Arginine-p-Nitroanilide, Hydrochloride(BAPNA)

C19

H22

N6O

4•HCl

Formula Weight: 434.88PRODUCT SPECIFICATIONSForm: Pale cream powderChromatography (TLC): HomogeneousIdentity: By IRMoisture (KF): ≤ 2.0%Storage: 4°CCAS #911-77-3

11945 500mg 1gm 5gm 10gm

N6-Benzyl Adenine(6-Benzylaminopurine)

C12

H11

N5

Formula Weight: 225.25Inhibitor of respiratory kinases in plants. Aids

in the extension of post harvest life in green vegetables.

CAS #1214-39-7

12015 1gm 5gm 25gm

BES(N,N-bis[Hydroxyethyl]-2-Aminoethanesulfonic Acid)

(HOCH2CH

2)2NCH

2CH

2SO

3H

Formula Weight: 213.25PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 7.15 ± 0.15A (250 nm, 10%, 1 cm): ≤ 0.1Loss on Drying: ≤ 0.5%Iron (Fe): ≤ 30 ppmLead (Pb): ≤ 10 ppmCAS #10191-18-1

12051 25gm 50gm 100gm 1kg

Biochemicals

Biochemicals


Bestatin[(2S,3R)-3-Amino-3-Hydroxy-4- Phenylbutanoyl]-L-Leu

C16

H24

N2O

4

Formula Weight: 308.37Source: MicrobialPRODUCT SPECIFICATIONSForm: White crystalline powderChromatography (TLC): HomogeneousApplications:•A specific inhibitor of aminopeptidases and

other exopeptidases•Can be used in wheat germ and reticulocyte-

lysate in vitro translation systemsStorage: -20°C

12052 5mg 10mg 25mg 100mg

Betaine, AnhydrousC

5H

11NO

2

Formula Weight: 117.15PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Identity: By IRMoisture (KF): ≤ 5.0%Heavy Metals (Pb): ≤ 10 ppmChloride (Cl): ≤ 50 ppmNote: Material is hygroscopic.CAS #107-43-7

12080 100gm 1kg

Betaine, HydrochlorideCH

3CH

2CH

2(NH

2)CHCOOH•HCl

Formula Weight: 153.61PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (dry basis)Identity: By IRLoss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Heavy Metals: ≤ 10 ppmArsenic (As): ≤ 2 ppmCAS #590-46-5

12085 100gm 1kg

Betaine, 5M Solution

ULTRAPUREMB GradeForm: 5M solution of betaine in deionized dH

2O.

Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes testFunctional Test: Functionally tested for use in

PCR.Storage: -20°C

77507 1.5ml 5x1.5ml 10ml

BHA(Butylated Hydroxyanisole; 2,6-Ditert-butyl-4-Hydroxyanisole)

C11

H16

O2


12090 500gm

BHT(Butylated Hydroxytoluene; 2,6-Ditert-butyl-p-cresol)

C15

H24

OFormula Weight: 220.35CAS #128-37-0

10295 100gm 500gm

Bicine(N,N-bis[2-Hydroxyethyl]glycine)

(CH2CH

2OH)

2NCH

2COOH

Formula Weight: 163.17PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: 98.5 - 101.5% (dry basis)Identity: By IRpKa (20°C): 8.35 ± 0.15A (250 nm, 10%, 1 cm): ≤ 0.1Loss on Drying: ≤ 0.5%Iron (Fe): ≤ 30 ppmLead (Pb): ≤ 10 ppmCAS #150-25-4

12091 50gm 100gm 1kg

Bile Bacteriological(Bile Salts)

12105 1lb

BilirubinC

33H

36N

4O

6

Formula Weight: 584.66PRODUCT SPECIFICATIONSForm: Bright orange fine powderAssay: ≥ 97.5% (By UV, E

max = 61.2 x 103, as is)

Identity: By IRMoisture (KF): ≤ 2.0%λ

max: 453 ± 2 nm

Storage: Store protected from light.CAS #635-65-4

12110 250mg 500mg 1gm 5gm

D-Biotin(Vitamin H)

ULTRAPUREC

10H

16N

2O

3S

Formula Weight: 244.31PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 97.5% (as is)Identity (A, B): Passes tests[α]25

D : +89° to +93° (c=2 in 0.1N NaOH)

Melting Point: 229 - 232°C (decompose)Heavy Metals (Pb): ≤ 10 ppmStorage: Store in air-tight containers.CAS #58-85-5

12115 500mg 1gm 25gm

Bis-AcrylamideSee N, N'-Methylene-bis-Acrylamide, page 255

Bis-(2-Mercaptoethyl)-Sulfone(BMS)

ULTRAPUREReagent GradeC

4H

10O

2S

3

Formula Weight: 186.32PRODUCT SPECIFICATIONSForm: Off-white crystalline powderPurity (ex S): ≥ 99% (dry basis)Elemental Analysis: C, H, SStorage: -20°C

77157 250mg 1gm

Bioc

hem

ical

sBiochemicals

3� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Bis-Tris(bis[2-Hydroxyethyl]imino-tris[hydroxymethyl] methane)

ULTRAPURE(HOCH

2CH

2)2NC(CH

2OH)

3

Formula Weight: 209.24PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 6.50 ± 0.15A (280 nm, 1M, 1 cm): ≤ 0.4Loss on Drying: ≤ 0.5%Iron (Fe): ≤ 30 ppmLead (Pb): ≤ 10 ppmCAS #6976-37-0

12112 100gm 500gm 1kg

Bis-Tris Propane(1,3-bis-[Tris (Hydroxymethyl) Methylamino]-Propane)

ULTRAPURE(HOCH

2)3CNH(CH

2)3NHC(CH

2OH)

3

Formula Weight: 282.33PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRSpectral Ratio (280 nm, 0.1M, 1 cm): ≤ 0.05Melting Point: 164 - 170°CMoisture (KF): ≤ 1.0%

12113 25gm 100gm

Bleomycin SulfatePRODUCT SPECIFICATIONSForm: White powderAssay: 1.4 - 2.1 Bleomycin units/mgStorage: 4°C

12149 15units

Blocking Buffer, 5X Solution

ULTRAPUREForm: 5X specially formulated solution containing

SDS, sodium caseinate, Tris, NaCl and 0.02% sodium azide in deionized water.

pH (25°C): 9.5 ± 0.5Contaminant Testing: Tested for fungal and

bacterial contaminationStorage: Store buffer at room temperature for up

to 3 months or at 4°C for up to 12 months. To dissolve any precipitated SDS, warm the buffer at 37°C for 60 min with gentle agitation. A small amount of insoluble precipitate is normal and should not affect results. (Do not heat in a microwave.)

Application: •For use in isotopic or non-isotopic detection of

DNA or RNA to deliver high signal, low noise results on nylon membrane blots

75354 600ml

Blotting ReagentsBlocking Buffer, 5X Solution, page 198Denhardt’s Solution, 50X, page 214SSC, 20X Solution, page 290SSPE, 20X Solution, page 290TBS, 20X Solution, pH 7.4, page 294TBS with Tween (TBST), 20X Solution, pH 7.4,

page 295

Boric AcidACS Reagent GradeH

3BO

3

Formula Weight: 61.83PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.5%Insoluble in MeOH: ≤ 0.005%Nonvolatile with MeOH: ≤ 0.05%Chloride (Cl): ≤ 0.001%Phosphate (PO

4): ≤ 0.001%


Calcium (Ca): ≤ 0.005%Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.001%CAS #10043-35-3

12329 500gm 1kg

Boric Acid

ULTRAPUREMB GradeH

3BO

3

Formula Weight: 61.83PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.5%Insoluble in MeOH: ≤ 0.005%Nonvolatile with MeOH: ≤ 0.05%Sulfate (SO

4): ≤ 0.01%

Heavy Metals (Pb): ≤ 0.001%Arsenic (As): ≤ 1 ppmCalcium (Ca): ≤ 0.005%Chloride (Cl): ≤ 0.001%Iron (Fe): ≤ 0.001%Phosphate (PO

4): ≤ 0.001%

Functional Test: Meets or exceeds criteria for high quality sequencing gel electrophoresis with Sequenase T7 DNA Polymerase.

DNase (endo): Passes testDNase (exo): Passes testRNase: Passes testProtease: Passes testCAS #10043-35-3

76324 500gm 1kg

Boric Acid, Sodium Salt(Sodium Borate, Decahydrate; Sodium Tetraborate, Decahydrate)

ACS Reagent GradeNa

2B

4O

7•10H

2O

Formula Weight: 381.37PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.5 - 105.0%pH (0.01M, H

2O, 25°C): 9.15 - 9.20

Insoluble Matter: ≤ 0.005%Chloride (Cl): ≤ 0.001%Phosphate (PO

4): ≤ 0.001%

Sulfate (SO4): ≤ 0.005%

Calcium (Ca): ≤ 0.005%Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 5 ppmCAS #1303-96-4

21614 500gm 1kg 5kg

Br-dUSee 5-Bromo-2'-Deoxyuridine, page 201

Biochemicals

Biochemicals


Brefeldin A

25103

Brewers YeastSee Yeast-Brewers, page 310

Brij® 35(Polyoxyethylene Lauryl Ether)

ULTRAPUREPRODUCT SPECIFICATIONSForm: White waxy solidAcid number: ≤ 5.0Hydroxyl number: 40 - 60Moisture: ≤ 3.0%Flash Point: ≥ 300°FPour Point: Approx. 33°CSpecific Gravity (25°C): Approx. 1.05Detergent for Stein-Moore chromatography.CAS #9002-92-0

12335 100gm 500gm 1kg 5kg

Brilliant Blue G(Coomassie® Brilliant Blue G-250)

ULTRAPURE(C.I.42655)C

47H

48N

3S

2O

7Na

Formula Weight: 854.02PRODUCT SPECIFICATIONSForm: Dark blue/purple crystalline powderDye content: Approx. 60%Loss on Drying: ≤ 8%λ

max: 607 nm ± 1 nm

εmax

: 38 x 103

Application:•Used for quantitative staining of proteins on

polyacrylamide electrophoresis gelsCAS #6104-58-1

32812 25gm 100gm

Brilliant Blue R(Coomassie® Brilliant Blue R-250)


45H

44N

3O

7S

2Na

Formula Weight: 825.97PRODUCT SPECIFICATIONSForm: Dark purple/violet powderIdentity: By IRλ

max: 586 ± 2 nm

εmax

: ≥ 45.0 x 103

Moisture (KF): ≤ 6.0%Application:•Used for quantitative staining of proteins on

polyacrylamide electrophoresis gelsCAS #6104-59-2

32826 25gm 100gm

5-Bromo-3-Indolyl-β-D Galactopyranoside(Indigal)

ULTRAPUREC

14H

16BrNO

6

Formula Weight: 374.28PRODUCT SPECIFICATIONSForm: White powderIdentity: By IRMelting Point: 218 ± 2°CSolubility: Soluble in DMFStorage: -20°C, protected from lightCAS #97753-82-7

17542 100mg 1gm

5-Bromo-4-Chloro-3-Indolyl- -D-Galactopyranoside(X-α-GAL)

ULTRAPUREC

14H

15BrClNO

6

Formula Weight: 408.63PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay (TLC): ≥ 99%Chromatography (TLC): Homogeneous Identity: By IRSolubility (1%, MeOH): Clear and colorless[α]25

D : +145.0 ± 3.0° (c=0.5, DMF:H

2O 1:1)

Moisture (KF): ≤ 1.0%Storage: -20°C, protect from moistureCAS #107021-38-5

26200 100mg 500mg

5-Bromo-4-Chloro-3-Indolyl-β-D-Galactopyranoside(X-GAL)

ULTRAPUREC

14H

15BrClNO

6

Formula Weight: 408.63PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (HPLC): ≥ 99%Chromatography (TLC): HomogeneousIdentity: By IRSolubility (2%, DMF): Clear and colorlessMelting Point: 232 ± 2°CApplications:•A histochemical substrate for β-Galactosidase•A substrate for blue/white colony screening.

Effective concentration is approximately 50 µg/ml.

Stock Concentration: 20 mg/ml in dimethylformamide in a glass or polypropylene tube.


10077 100mg 250mg 1gm 2gm 5gm

Bioc

hem

ical

sBiochemicals

36 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

5-Bromo-4-Chloro-3-Indolyl- -D-Glucuronic Acid, Cyclohexylammonium Salt(X-GLUC)

ULTRAPUREC

20H

26BrClN

2O

7

Formula Weight: 521.79PRODUCT SPECIFICATIONSForm: White crystalline powderIdentity: By IRMoisture (KF): ≤ 5%Applications:•Substrate for β-glucuronidase histochemical

analysis•Used for the chromogenic determination of β-glucuronidase (GUS) gene fusion marker

•Soluble in water: DMF in 1:1 ratioTypical Substrate Solution: 100mM phosphate buffer (pH 7.0) 10mM EDTA (pH 7.0) 0.5mM potassium ferrocyanide (pH 7.0) 0.5mM potassium ferricyanide (pH 7.0) 1-2mM 5-bromo-4-chloro-3-indolyl-β-D-

glucuronideReferences:1. Conchie, J., Findlay, J. and Levvy, G. A. (1959)

Biochem. J. 71, 318-325.2. Fishman, W. H. (1955) Adv in Enz. 16, 361-

409.3. Jefferson, R. A., Kavanagh, T. A. and Bevan,

M. W. (1987) EMBO J. 6, 3901-3907.4. Jefferson, R. A., Burgess, S. M. and Hirsh, D.

(1986) Proc. Natl. Acad. Sci. USA 83, 8447-8451.

5. Pearson, B., Andrews, M. and Grose, F. (1961) Proc. Soc. Exp. Biol. Med. 108, 619-623.

6. Windholz, M. ed (1976) Merck Index, (Merck, Sharp & Dohme, Rahway, N.J.), 654.

7. Lillie, R. D. ed (1977) Biological Stains (Williams & Wilkins Co., Baltimore), 452.

8. Lojda, Z. (1970) Histochemie 23, 266-288.9. Meyerowitz, E. M., personal communication.Storage: Store at -20°C; protect from light.CAS #114162-64-0

12388 10mg 25mg 100mg

5-Bromo-4-Chloro-3-Indolyl Phosphate, Disodium Salt(BCIP)

ULTRAPUREC

8H

4BrClNNa

2O

4P

Formula Weight: 370.43PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderIdentity: By IRChromatography (TLC): HomogeneousStorage: -20°C, protect from moisture.CAS #102185-33-1

12387 25mg 50mg 100mg 500mg 1gm

5-Bromo-4-Chloro-3-Indolyl Phosphate, p-Toluidine Salt

ULTRAPUREC

8H

6BrClNO

4P•C

7H

9N

Formula Weight: 433.62PRODUCT SPECIFICATIONSForm: White to off-white powderIdentity: By IRSolubility (5 mg/ml DMF): Passes testMelting Point: 196 ± 2°CStorage: 4°CCAS #6578-06-9

12390 100mg 500mg 1gm

Bromocresol Green, Sodium Salt

ULTRAPUREACS Reagent GradeC

21H

13Br

4O

5SNa

Formula Weight: 720.00PRODUCT SPECIFICATIONSForm: Brown to orange powderClarity of Solution (0.1%, H

2O): Passes test

Visual Transition Interval: pH 3.8 - Yellow pH 5.4 - BlueApplication: •Used as a tracking dye in alkaline agarose gel

electrophoresisLoading Buffer (6X): 6mM EDTA 300mM NaOH 18% Ficoll (in water) 0.15% Bromocresol Green 0.25% Xylene CyanolCAS #62625-32-5

12355 5gm 10gm 25gm

Bromocresol Purple, Free AcidC

21H

16Br

2O

5S

Formula Weight: 540.20PRODUCT SPECIFICATIONSForm: Light salmon/beige powderInsoluble Matter: Passes testVisual Transition Interval: pH 5.2 - Yellow pH 6.8 - PurpleCAS #115-40-2

12361 10gm 25gm 100gm

Bromocresol Purple, Sodium SaltC

21H

15Br

2O

5SNa

Formula Weight: 562.20PRODUCT SPECIFICATIONSForm: Red-orange powderInsoluble Matter: Passes testVisual Transition Interval: pH 5.2 - Yellow pH 6.8 - PurpleCAS #62625-30-3

12360 10gm 25gm 100gm

Biochemicals

Biochemicals


5-Bromo-2'-Deoxyuridine(Br-dU)

C9H

11BrN

2O

5

Formula Weight: 307.09PRODUCT SPECIFICATIONS Form: White to off-white powderAssay (UV): ≥ 97%Identity: By IRλ

max: 280 nm ± 1 nm

εmax

: 9.250 x 103 ± 3%Spectral Ratios: A

250/A

260: 0.50 ± 0.05

A280

/A260

: 1.90 ± 0.05Moisture (KF): ≤ 1.0%Storage: -20°CCAS #59-14-3

12400 500mg 1gm

Bromophenol Blue, Sodium Salt

ULTRAPUREACS Reagent GradeC

19H

9Br

4NaO

5S

Formula Weight: 691.94PRODUCT SPECIFICATIONSForm: PowderClarity of Solution: Passes testVisual Transition Interval: pH 3.0 - Yellow pH 4.6 - BlueApplications:•Used as a tracking dye in agarose and

acrylamide gel electrophoresis•Used in the stop solution in DNA sequencing kitsCAS #62625-28-9

12370 5gm 10gm

Bromothymol Blue, Free AcidACS Reagent GradeC

27H

28Br

2O

5S

Formula Weight: 624.38PRODUCT SPECIFICATIONSForm: Pale purple crystalline powderClarity of Solution: Passes testVisual Transition Interval: pH 6.0 - Yellow pH 7.6 - BlueCAS #76-59-5

12374 5gm 10gm 25gm

Bromothymol Blue, Sodium SaltACS Reagent GradeC

27H

27Br

2NaO

5S

Formula Weight: 646.36PRODUCT SPECIFICATIONSForm: Dark greenish gold crystalline powderClarity of Solution: Passes testVisual Transition Interval: pH 6.0 - Yellow pH 7.6 - BlueCAS #34722-90-2

12375 5gm 10gm 25gm

BSASee Albumin, Bovine, page 187

BuffersBlocking Buffer, 5X Solution, page 198Glycerol Tolerant Gel (GTG) Buffer, 20X Solution,


Mixed Powder, page 234HEPES, 1M Solution, pH 7.3, page 239PBS, 10X Solution, pH 7.4, page 268RapidRun™ Agarose Buffer, 20X Solution, page

282TAE Buffer, 10X Solution, page 293TAE Buffer, 50X Solution, page 293TBE Buffer, 5X Solution, page 294TBE Buffer, 10X Ready-Mixed Powder, page 294TE Buffer, 1X Solution, page 295TE Buffer, 50X Solution, page 295Tris, 2M Solution, page 302Tris, 2M Solution, pH 7.5, page 302Tris-Glycine (TG) Buffer, 10X Solution, page 301Tris-Glycine-SDS (TGS) Buffer,10X Solution, page

301Tris/HCl, 1M Solution, pH 7.0, page 302Tris/HCl, 1M Solution, pH 7.5, page 302Tris/HCl, 1M Solution, pH 8.0, page 302

t-Butyl CarbazateC

5H

12N

2O

2


12462

Cacodylic Acid, Sodium Salt(Dimethylarsenic Acid, Sodium Salt; Sodium Cacodylic)

(CH3)2AsO

2Na•3H

2O

Formula Weight: 214.03 (trihydrate)PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98.5% (dry basis)Solubility (10%, H

2O): Clear and colorless


4): ≤ 0.3%

Application: •An integral component of terminal

deoxynucleotidyl transferase bufferNote: Material is hygroscopicCAS #124-65-2

12488 25gm 100gm 500gm

Caffeine, Anhydrous(1,3,7-Trimethylxanthine)

C8H

10N

4O

2

Formula Weight: 194.19PRODUCT SPECIFICATIONSForm: White powderAssay: 98.5 - 101.0%Identity (A, B): Passes testsMelting Point: 235 - 239°CLoss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Heavy Metals: ≤ 10 ppmReadily Carbonizable Substances: Passes testOther Alkaloids: Passes testChromatographic Purity: Passes testO.V.I.: Passes testCAS #58-08-2

12520 100gm 250gm 1kg

Calcium Chloride, AnhydrousACS Reagent GradeCaCl

2

Formula Weight: 110.98PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 96.0%Titratable Base: ≤ 0.006 meq/gCAS #10043-52-4

12354 500gm 2.5kg

Bioc

hem

ical

sBiochemicals

38 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Calcium Chloride, DihydrateACS Reagent GradeCaCl

2•2H

2O

Formula Weight: 147.01PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 105.0%pH (5%, H

2O, 25°C): 4.5 - 8.5

Insoluble Matter: ≤ 0.01%Oxidizing Substances (NO

3): ≤ 0.003%


Ammonium (NH4): ≤ 0.005%

Barium (Ba): ≤ 0.005%Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 0.001%Magnesium (Mg): ≤ 0.005%Potassium (K): ≤ 0.01%Sodium (Na): ≤ 0.02%Strontium (Sr): ≤ 0.1%

12531 500gm 2.5kg

Calcium Chloride, DihydrateUSBioAnalyzedCaCl

2•2H

2O

Formula Weight: 147.01PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 107.0% (as is)Identity: Passes testspH (5%, H

2O): 4.5 - 9.2

Aluminum: ≤ 1 ppmIron, Aluminum, and Phosphate: Passes testHeavy Metals: ≤ 0.001%Limit of Magnesium and Alkali Salts: ≤ 1.0%O.V.I.: Passes test

12532

D-Calcium Pantothenate(Pantothenic Acid, Calcium Salt; Vitamin B

5)

USBioAnalyzed(C

9H

16NO

5)2Ca

Formula Weight: 476.53PRODUCT SPECIFICATIONSForm: White powderIdentity (A, B): Passes tests[α]25

D : +25.0° to +27.5° (c=5 in H

2O, dry basis)

Loss on Drying: ≤ 5.0%Heavy Metals (Pb): ≤ 20 ppmOrdinary Impurities: Passes testAlkalinity: Passes testNitrogen Content (N): 5.7 to 6.0%Calcium Content (Ca): 8.2 to 8.6%Residual Solvents: Passes testCAS #137-08-6

12550 100gm 500gm 1kg

DL-Calcium Pantothenate(Pantothenic Acid, Calcium Salt; Vitamin B

5)

C18

H32

CaN2O

10


12555 100gm 1kg

Canavalia Ensiformis Agglutinin-Peroxidase Conjugate(Concanavalin)

Source: JackbeanPRODUCT SPECIFICATIONSForm: Yellow/amber liquidSpecificity: α-D-Mannopyranoside, α-D-GlucopyranosideProtein: 2 mg/mlNote: Stored in 0.05M Tris with 0.004M CaCl

2,

0.15M NaCl, pH 7.0 - 7.2. Mitogenic.Storage: -20°CCaution: Do not inhale lectins or allow skin

contact.

34246 1mg 5mg

CantharidinC

10H

12O

4


12600 25mg 100mg 500mg

Carbenicillin, Disodium SaltC

17H

16N

2Na

2O

6S

Formula Weight: 422.36PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: ≥ 92.0% (dry basis)Identity: Passes testpH (10 mg/ml): 6.0 - 7.5Moisture (KF): ≤ 5.0%Storage: 4°CCAS #4800-94-6

12678 250mg 1gm 5gm

CAPS3-(Cyclohexylamino)-1-Propanesulfonic Acid

ULTRAPURE(C

6H

11)NH(CH

2)3SO

3H

Formula Weight: 221.32PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRA (250 nm, 0.5M, 1 cm): ≤ 0.25Loss on Drying: ≤ 10%Iron (Fe): ≤ 30 ppmLead (Pb): ≤ 10 ppmCAS #1135-40-6

12656 25gm 100gm 1kg

Carbonic Anhydrase(E.C.4.2.1.1)Source: Bovine ErythrocytesFormula Weight: 30.00PRODUCT SPECIFICATIONSForm: Lyophilized powder, salt-freeActivity: ≥ 3,000 units/mg (dry weight)Unit Definition: One unit=2x (T

0-T)/T (Method of

Wilbur and Anderson, [1948] J. Biol. Chem. 176, 147.)

Storage: 4°C, protect from moisture.

12710 50mg 100mg 250mg

Carboxymethyl Cellulose, Sodium SaltThis is a water soluble polymer prepared from

cellulose.CAS #9004-32-4

12730 1lb 5lb 25lb

Carboxypeptidase Y(E.C.3.4.16.5)Source: YeastForm: A useful enzyme in the sequence analysis

of proteins and peptides.Unit Definition: One unit hydrolyzes 1 µmol of

CBZ-Phe-Leu/min at 25°C, pH 6.5.Solubility: Soluble in water and phosphate bufferNote: Please inquire for bulk pricing.Storage: -20°C

12758 1mg 5mg 10mg

Biochemicals

Biochemicals


Carboxyphenyl PhosphateHOOCC

6H

4OPO

3H

2


12760 1gm 5gm

DL-Carnitine HCl(Vitamin B

7)

C7H

15NO

3•HCl

Formula Weight: 197.66PRODUCT SPECIFICATIONSForm: White/clear crystalline powder Assay: ≥ 98.5%Identity: By IRLoss on Drying: ≤ 1%CAS #461-05-2

12795 25gm 100gm 1kg

α-CaseinPrepared by urea fractionation. For the assay of

Fibrinolysin.Storage: -20°CCAS #9000-71-9

12820 250mg 1gm

Casein, Hammarsten

ULTRAPUREFormula Weight: 75,000 - 100,000PRODUCT SPECIFICATIONSForm: Cream to light yellow, lyophilized powderProtein: ≥ 95%Loss on Drying: ≤ 10.0%CAS #9000-71-9

12840 100gm 1lb 5lb 25lb

Casein (High Nitrogen)Prepared from New Zealand casein exclusivelyPRODUCT SPECIFICATIONSForm: White to off-white powderProtein (dry basis): ≥ 95.0%CAS #9000-71-9

12845 1lb 5lb 25lb 100lb

Casein Hydrolysate, Enzymatic Digest

ULTRAPUREPRODUCT SPECIFICATIONSForm: PowderMoisture: ≤ 6%pH: 6.6 - 7.5Amino Nitrogen: 3.7 - 4.8%Total Nitrogen: 11.5 - 14.2%Protein (N x 6.38): 73.3 - 90.6%Ash: ≤ 6.5%

12855 1lb 5lb 25lb

Casein Hydrolysate, Acid Digest(Peptones)

Form: White to off-white powderDescription: Acid digest of casein

12850 1lb 5lb 25lb

Casein Hydrolysate, Acid Digest - Low Ash

Low Ash - BacteriologicalPRODUCT SPECIFICATIONSProtein (N x 6.38): ≥ 73%pH: 5.5 - 7.0Moisture: ≤ 6.0%Amino Nitrogen: ≥ 4.0%Total Nitrogen: ≥ 11.5%Ash: ≤ 10%Microbiological Analysis Standard Plate Count <10,000 cfu/gm Coliform: <10 cfu/gm Salmonella*: None detected in 25 gm Yeast & Mold: ≤ 100 cfu/gm * Specification is guaranteed, but not tested

on each lot.CAS #65072-00-6

12852 1lb 5lb 25lb

Casein, Sodium(Sodium Caseinate)

PRODUCT SPECIFICATIONSForm: White to off-white powderProtein (dry basis): ≥ 93%Ash: ≤ 4.2%Moisture: ≤ 5.0%pH (5%, H

2O): 6.4 - 7.0

CAS #9005-46-3

12865 1lb 5lb 25lb 100lb

Casein - Vitafree™PRODUCT SPECIFICATIONSForm: Cream colored powderProtein (N x 6.25): ≥ 95.0%Loss on Drying: ≤ 12.0%Specifically prepared as a source of high quality

protein in diets needed to produce vitamin deficiencies.

12866 5lb 25lb

Catalase(E.C.1.11.1.6)Source: Bovine LiverPRODUCT SPECIFICATIONSForm: Lyophilized powder, approx. one-third

sucroseIdentity: By IRActivity: ≥ 3000 units/mg proteinProtein Concentration: Approx. 50%Unit Definition: One unit decomposes 1 µmol of

H2O

2/min at 25°C, pH 7.0.

Storage: 4°C

12885 500mg 1gm 5gm 10gm

Catalase(E.C.1.11.1.6)Source: FungalPRODUCT SPECIFICATIONSForm: Clear, brown liquidActivity: ≥ 1000 units/mlUnit Definition: One unit is the amount of enzyme

which will decompose 264 mg of hydrogen peroxide in one hour at 25°C, pH 7.0.

Storage: 4°C

12880 50ml

Bioc

hem

ical

sBiochemicals

�0 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

D-(+)-CellobioseC

12H

22O

11

Formula Weight: 342.30PRODUCT SPECIFICATIONSForm: White to off-white powderAssay (HPLC): ≥ 98 area-%Identity: By IR[α]20

D : +34.0° ± 1.0° (c = 1 in H

2O, 15 hours)

Loss on Drying: ≤ 2.0% Heavy Metals (Pb): ≤ 10 ppmCAS #528-50-7

13235 5gm 10gm 25gm 100gm 500gm

Cellulase(E.C.3.2.1.4)Source: Aspergillus nigerUnit Definition: One unit produces a change

in the relative fluidity in a defined sodium carboxymethyl cellulose substrate of 1 in 5 min at 40°C, pH 4.5.

Storage: 4°C

13285 25gm 100gm

Cellulose, Non-Nutritive Fiber For Lab Animal Diets

See Celufil, page 204

Celufil-HydrolyzedThis material has no caloric value.

13293 5lb 25lb 50lb

Celufil-Non Nutritive BulkA fine mesh cellulose filler and binder with

minimal nutritive value for laboratory diets.

13292 5lb 25lb 50lb

CephalexinC

16H

17N

3O

4S•H

2O

Formula Weight: 365.40PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 95.0 - 101.0% (dry basis)Identity: By IRMoisture (KF): ≤ 10%Storage: Ambient, in tight containersCAS #23325-78-2

13294 10gm

Cesium Chloride

ULTRAPUREMB GradeCsClFormula Weight: 168.36PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: 99.999%Refractive Index (50% w/w, 20°C): 1.389 - 1.391A (260 nm, 50% w/v, 1 cm): ≤ 0.02Insoluble Matter: NegligibleSilicon (Si): ≤ 1 ppmSulfate (SO

4): ≤ 5 ppm

Barium (Ba): ≤ 2 ppmCalcium (Ca): ≤ 3 ppmLithium (Li): ≤ 1 ppmMagnesium (Mg): ≤ 1 ppmPotassium (K): ≤ 3 ppmRubidium (Rb): ≤ 4 ppmSodium (Na): ≤ 3 ppmStrontium (Sr): ≤ 1 ppmAluminum (Al): ≤ 1 ppmChromium (Cr): ≤ 1 ppmIron (Fe): ≤ 5 ppmLead (Pb): ≤ 2 ppmManganese (Mn): ≤ 1 ppmDNase (endo): Passes testDNase (exo): Passes testRNase: Passes testApplication:•Used for density gradient high speed

centrifugation separation of λ phage, M13 and plasmid DNA

Densities in CsCl: Double-stranded DNA: density (P) = (0.098)

[G + C] + 1.660 gm/cm3 mole Sample Density RFI (Supercoiled) ds DNA 1.709 gm/cm3

RFII (Nicked) ds DNA 1.54 gm/cm3

ss DNA 1.726 gm/cm3

ss RNA 1.90 gm/cm3

Protein 1.33 gm/cm3

Note:1. Nicked DNA binds more ethidium bromide than

supercoiled DNA.2. Ethidium bromide at saturation decreases

density of ds DNA ~ 0.15 gm/cm3.3. More ethidium bromide bound = greater

reduction in density.Typical Cesium Chloride Solutions: Step gradients prepared in SM* or H

2O; for

(100 ml) Density CsCl SM or Refractive (P) (gm) H

2O (ml) Index

1.45 60 85 1.377 1.50 67 82 1.382 1.70 75 75 1.399*SM—phage dilution buffer (100mM NaCl, 8mM

MgSO4•7H

2O, 50mM Tris-HCl, pH 7.5, 0.01%

gelatin).Cesium Chloride RNA Isolation Method:A. Guanidine Thiocyanate Homogenization Buffer

for RNA Isolation: 4.0M Guanidine Thiocyanate, 0.1M Tris, pH 7.5, 1.0% 2-mercaptoethanol

B. Cesium Chloride RNA Isolation Solution: Most researchers layer their RNA homogenates onto a cushion of 5.7M Cesium Chloride.

C. RNA Resuspension Buffer: TE, pH 7.5.Reference:1. Schildkraut, C. L., Marmur, J. and Doty, P.

(1962) J. Mol. Biol. 4, 430-443.CAS #7647-17-8

75822 5gm 25gm 100gm 500gm 1kg

Cesium Hydroxide, MonohydrateCsOH•H

2O

Formula Weight: 167.93 (Monohydrate)CAS #35103-79-8

13330 25gm 100gm

Cetyl Alcohol(1-Hexadecanol; Palmityl Alcohol)

CH3(CH

2)15

OHFormula Weight: 242.44CAS #36653-82-4

13350 100gm 500gm

Biochemicals

Biochemicals


Cetyl Trimethyl Ammonium Bromide(CTAB)

[CH3(CH

2)15

N(CH3)3]Br

Formula Weight: 364.46PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% as isIdentity: By IRpH (10%, H

2O): 3.0 - 7.0

Moisture (KF): ≤ 1.0%Melting Point: 232 - 237°CApplications:•Cationic detergent, soluble in H

2O and readily

soluble in alcohol•Used in the preparation and purification of

genomic DNA from bacteria•Complexes with both polysaccharide and

residual protein•Also used for DNA mini preps for sequencingCAS #57-09-0

13353 100gm 500gm 1kg

CHAPS(3-[ (3-Cholamidopropyl)-Dimethylammonio]-1-Propane Sulfonate)

ULTRAPUREC

32H

58N

2O

7S

Formula Weight: 614.88PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (N analysis): ≥ 98%Identity: By IRChromatography (TLC): HomogeneousCritical Micelle Concentration (CMC): 4 to 8mMStorage: 4°C, protected from lightCAS #75621-03-3

13361 1gm 10gm

CHAPSO(3-[ (3-Cholamidopropyl)-Dimethylammonio]-2-Hydroxy-1-Propane Sulfonate)

C32

H58

N2O

8S

Formula Weight: 630.88PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (C analysis): ≥ 96%Identity: By IRChromatography (TLC): HomogeneousMoisture (KF): ≤ 4%Critical Micelle Concentration (CMC): 4 to 8mMStorage: 4°C, protected from lightCAS #82473-24-3

13369 1gm

Charcoal-Activated Norit® AA decolorizing carbon.CAS #7440-44-0

13365 5lb 10lb

Charcoal - Activated(NORIT® SX 4)

An acid washed carbon.PRODUCT SPECIFICATIONSMoisture (as packed): ≤ 10%Molasses Decolorizing No.: ≤ 570Iron (Fe): ≤ 200 ppmCAS #7440-44-0

13370 5lb 10lb

CHES(2-[N-Cyclohexylamino]ethanesulfonic Acid)

(C6H

11)NH (CH

2)2SO

3H

Formula Weight: 207.29PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 9.50 ± 0.15A (250 nm, 1M, 1 cm): ≤ 0.3Loss on Drying: ≤ 1.0%Chloride (Cl): ≤ 0.005%Sulfate (SO

4): ≤ 0.005%


13371 100gm 1kg

Chicken Intestine Alkaline Phosphastase

E.C.3.1.3.1Source: Chicken IntestinePRODUCT SPECIFICATIONSForm: Lyophilized powder salt freeUnit Definition: One unit hydrolyzes one µmole of

o-carboxyphenyl phosphate/minute at 25°C, pH 8.8.

Storage:-20°C, desiccated

10925 1gm 5gm

Chitin(Poly-N-Acetyl Glucosamine)

PRODUCT SPECIFICATIONSForm: Unbleached coarse flakesLoss on Drying: ≤ 10%CAS #1398-61-4

13385 100gm 500gm 1kg

ChitosanSource: Crab ShellsCAS #9012-76-4

13392 10gm 25gm 100gm

Chloramphenicol


11H

12Cl

2N

2O

5

Formula Weight: 323.13PRODUCT SPECIFICATIONSForm: White to grey-white crystalline powderAssay: 97.0 - 103.0% (as is)Identity (A, B): Passes testsChromatographic Purity: Passes testMelting Point: 149 - 153°CpH (2.5%, H

2O): 4.5 - 7.5

Crystallinity: Passes testApplications:•Used in large-scale plasmid DNA preparation of

low to moderate copy number plasmids. Also used in high copy plasmids to limit the bulk and viscosity of the cell lysates

•Used in chloramphenicol acetyl transferase (CAT) assay

Mode of Action:•Binds to the ribosomal 50S subunit and inhibits

protein synthesis.•Soluble in methanol, ethanol.Stock Solution: 34 mg/ml in ethanol for plasmid

DNAsWorking Concentration: 25-170 µg/ml;

100 mg/ml in ethanol for CAT assaysCAS #56-75-7

23660 5gm 25gm 100gm 1kg

Bioc

hem

ical

sBiochemicals

�� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Chlorophenol RedC

19H

12O

5SCl

2

Formula Weight: 423.27PRODUCT SPECIFICATIONSForm: Brown powderλ

max (pH 3.8): 434 ± 1 nm

εmax

(pH 3.8): ≥ 20,000Loss on Drying: ≤ 6%Visual Transition Interval: pH 5.2 - Yellow pH 6.8 - RedCAS #4430-20-0

13550 1gm 5gm 10gm

Chlorotetracycline, HydrochlorideUSBioAnalyzedC

22H

23ClN

2O

8•HCl

Formula Weight: 515.34PRODUCT SPECIFICATIONSForm: Yellow crystalline powderActivity: ≥ 900 µg of C

22H

23ClN

2O

8•HCl/mg (as is)

Identity (A, B): Passes testspH (10 mg/ml, H

2O): 2.3 - 3.3

[α]25D : -235° to -250° (c=0.5 in H

2O)

Loss on Drying: ≤ 2.0%Storage: Ambient in tight light-resistant

containersCAS #64-72-2

13535 5gm 25gm 100gm 250gm

3-[(3-Cholamidopropyl)-Dimethylammonio]-2-Hydroxy-1-Propane Sulfonate

See CHAPSO, page 205

Cholecalciferol (Vitamin D

3, Activated 7-Dehydrocholesterol)

USBioAnalyzedC

27H

44O

Formula Weight: 384.64PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 97.0 - 103.0%Identity (A, B, C, D): Passes tests[α]25

D : +105° to +112° (c=0.8 in EtOH)

O.V.I.: Meets the requirementsStorage: 4°C, under Nitrogen, protect from light.CAS #67-97-0

13394 250mg 1gm 5gm 25gm

CholesterolC

27H

46O

Formula Weight: 386.65PRODUCT SPECIFICATIONSForm: White to faintly yellow crystalline powderIdentity: Passes testSolubility in alcohol (1%): Passes test[α]20

D : -34° to -38° (c=2 in dioxane)

Acidity: Passes testMelting Range: 147 - 150°CLoss on Drying: ≤ 0.3%Residue on Ignition: ≤ 0.1%CAS #57-88-5

13610 25gm 100gm 1kg

CholesterolReagent GradeC

27H

46O


13580 5gm 25gm 100gm

Cholesterol CaprylateC

35H

60O

2

Formula Weight: 512.85PRODUCT SPECIFICATIONSForm: White to off white crystalline powderIdentity: By IRCAS #1182-42-9

13570 10gm 25gm

Cholic Acid, Sodium Salt(Sodium Cholate)

C24

H39

NaO5

Formula Weight: 430.55PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 97.0% (dry basis)Identity: By IRLoss on Drying: ≤ 5.0%CAS #361-09-1

13630 10gm 25gm 100gm 500gm 1kg

Choline BitartrateC

9H

19NO

7

Formula Weight: 253.25PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (dry basis)Identity: By IRMoisture (KF): ≤ 0.5%Heavy Metals (Pb): ≤ 10 ppmCAS #87-67-2

13405 100gm 500gm

Choline ChlorideC

5H

14ClNO

Formula Weight: 139.62PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (dry basis)Identity: By IRMoisture (KF): ≤ 0.5%Residue on Ignition: ≤ 0.05%Heavy Metals (Pb): ≤ 10 ppm1,4-Dioxane: Passes testProtect from moisture. This material is

hygroscopic.CAS #67-48-1

13410 200gm 500gm 1kg 5lb 25lb

Biochemicals

Biochemicals


Choline Dihydrogen CitrateC

11H

21NO

8

Formula Weight: 295.29PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (dry basis)Identity: By IRMoisture (KF): ≤ 0.3%Residue on Ignition: ≤ 0.05%Heavy Metals (Pb): ≤ 10 ppmStore in air-tight containers. Material is

hygroscopic.CAS #77-91-8

13415 500gm 1kg 5kg

Chondroitin Sulfate, Sodium Salt(Chondroitin-6-Sulfate)

Source: Shark CartilagePRODUCT SPECIFICATIONSForm: White to off-white powderLoss on Drying: ≤ 10%pH: 5.5 - 7.5Residue on Ignition: 23.0 - 31.0%Nitrogen (N): 2.5 - 3.8%Sulfur (S): 5.5 - 7.5%Arsenic (As): ≤ 2 ppmHeavy Metals: ≤ 40 ppmCAS #9082-07-9

13645 5gm 25gm 100gm

α-Chymotrypsin(E.C.3.4.21.1)Source: Bovine PancreasForm: Lyophilized powder, soluble at 1 mg/ml in

0.001N HClDescription: Free of low molecular weight

contaminants, prepared by the procedure of Yapel, et al. (1966) J. Am. Chem. Soc., 88, 2573.

Unit Definition: One unit hydrolyzes 1 µmol BTEE/min at 25°C, pH 7.8.


11010 100mg

-Chymotrypsin(E.C.3.4.21.1)Source: Bovine PancreasPRODUCT SPECIFICATIONSForm: Lyophilized powderChymotrypsin Activity: ≥ 1000 units/mg

(dry basis)Storage: -20°CCAS #9004-07-3

13680 1gm 5gm 10gm

Chymotrypsinogen ASource: Bovine PancreasUnit Definition: One unit hydrolyzes 1 µmol BTEE/

min at 25°C, pH 7.8.Storage: 4°C

13695 100mg 1gm 5gm

Citric Acid, AnhydrousUSBioAnalyzedC

6H

8O

7

Formula Weight: 192.12PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.5 - 100.5% (dry basis)Clarity of Solution: Passes testColor of Solution: Passes testIdentity: By IRMoisture (KF): ≤ 1.0%Residue on Ignition: ≤ 0.1%Readily Carbonizable Substances: Passes testHeavy Metals (Pb): ≤ 0.001%Oxalate: Passes testSulfate (SO

4): Passes test

CAS #77-92-9

13729 500gm 1kg

Citric Acid, Trisodium Salt, Dihydrate(Citric Acid, Sodium Salt; Sodium Citrate, Dihydrate)

ACS Reagent GradeNa

3C

6H

5O

7•2H

2O


2O, 25°C): 7.0 - 9.0

Insoluble Matter: ≤ 0.005%Chloride (Cl): ≤ 0.003%Sulfate (SO

4): ≤ 0.005%

Ammonia (NH3): ≤ 0.003%

Calcium (Ca): ≤ 0.005%Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 5 ppm

21604 500gm 2.5kg

Citric Acid, Trisodium Salt, Dihydrate(Citric Acid, Sodium Salt; Sodium Citrate, Dihydrate)

USBioAnalyzedC

6H

5Na

3O

7•2H

2O

Formula Weight: 294.10PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 100.5% (dry basis)Identity A: By IRIdentity B: Passes testLoss on Drying: 10.0 - 13.0%Tartrate: Passes testAlkalinity: Passes testHeavy Metals (Pb): ≤ 10 ppmCAS #6132-04-3

13735 500gm 1kg 5kg

Bioc

hem

ical

sBiochemicals

�� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

L-CitrullineNH

2CONH(CH

2)3CH(NH

2)COOH

Formula Weight: 175.19PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98.5%Identity: By IRChromatography (TLC): Homogeneous[α]20

D : +24.5° to +26.5° (c=8 in 6N HCl at 20°C)

Loss on Drying: ≤ 0.3%Heavy Metals: ≤ 20 ppmArsenic (As): ≤ 2 ppmChloride (Cl): ≤ 0.02%Sulfate (SO

4): ≤ 0.02%

CAS #372-75-8

13745 5gm 25gm 100gm 1kg

CMPSee Cytidine-5'-Monophosphate, page 212

Cocarboxylase(Thiamine Pyrophosphate Chloride)

C12

H19

CIN4O

7P

2S

Formula Weight.: 460.77PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 93.0% (dry basis)Identity: By IRLoss on Drying (130°C): ≤ 1.5%Chloride (Cl): 7.5 - 7.9%Sulfate (SO

4): ≤ 0.01%

Heavy Metals (Pb): ≤ 10 ppmCAS #154-87-0

13765 5gm 10gm 25gm 100gm

Cocoa Butter

13770 1kg

Cod Liver OilPRODUCT SPECIFICATIONSForm: Amber liquidVitamin A: ≥ 850 USP Units/gmVitamin D: ≥ 85 USP Units/gmIodine Value: 145 - 180Saponification Value: 180 - 192CAS #8001-69-2

13768 1qt 1ga

CodecarboxylaseSee Pyridoxal-5'-Phosphate, page 280

Coenzyme A, Free Acid, TrihydrateC

21H

36N

7O

16P

3S•3H

2O

Formula Weight: 821.58PRODUCT SPECIFICATIONSForm: Lyophilized powderAssay: ≥ 75% as reduced Co-A•3H

2O


250/A

260: 0.78 ± 0.03

A280

/A260

: 0.16 ± 0.03Moisture (KF): ≤ 8%Note: The above product is available in

manufacturing quantities. Please inquire for bulk pricing.


13787 10mg 25mg 50mg 100mg 250mg 500mg 1gm

Coenzyme A, Dilithium SaltC

21H

34N

7O

16P

3SLi

2•nH

2O


PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (Enzymatic): ≥ 75%Lithium (Li): ≤ 2%Moisture (KF): ≤ 8%Spectral Ratios (pH 7.5): A

250/A

260: 0.78 ± 0.03

A280

/A260

: 0.16 ± 0.03Storage: -20°C

13784 50mg 100mg 500mg 1gm

Coenzyme A, Trilithium Salt, DihydrateC

21H

33N

7O

16P

3SLi

3•2H

2O

Formula Weight: 821.36PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (Enzymatic): ≥ 75%Spectral Ratios (pH 7.5): A

250/A

260: 0.78 ± 0.03

A280

/A260

: 0.16 ± 0.03Lithium (Li): 2.5 ± 1.5%Moisture (KF): ≤ 8%Note: The above product is available in


Storage: -20°CCAS #18439-24-2

13785 10mg 25mg 50mg 100mg 250mg 500mg 1gm

Coenzyme ISee β-Nicotinamide Adenine Dinucleotide,

page 262

Coenzyme IISee Nicotinamide Adenine Dinucleotide

Phosphate, page 263

ColchicineC

22H

25NO

6

Formula Weight: 399.44PRODUCT SPECIFICATIONSForm: White to pale yellow powderIdentity: By IRAssay: 94.0 - 101.0% (dry basis)[α]25

D : -240° to -250° (c=1 in EtOH, dry basis)

Moisture (KF): ≤ 2.0%Limit of Colchiceine: Passes testLimit of Ethyl Acetate: Passes testChromatographic Purity: Passes testO.V.I.: Meets requirementCAS #64-86-8

13805 500mg 1gm 5gm

Biochemicals

Biochemicals


CollagenSource: Bovine Achilles TendonPRODUCT SPECIFICATIONSForm: Lyophilized shredded powderIdentity: By IRPurified by the method of Einbinder and Schubert,

(1951) J. Biol. Chem., 188, 355.Storage: 4°CCAS #9007-34-5

13815 1gm 5gm 10gm

CollagenSource: Calf SkinPRODUCT SPECIFICATIONSForm: Solution in dilute (0.075M) acetic acid with

0.01% thimerosal as a preservative, pH 3.7.Collagen concentration: Approximately 10 mg/mlStorage: 4°C

13813 10ml 25ml 100ml

CollagenSource: Calf SkinPRODUCT SPECIFICATIONSProtein: 6-10 mg/mlDiluent: 0.075M Sodium Citrate, pH 3.7,

containing 0.01% Sodium Azide as a preservative.

Storage: 4°C

13814 10ml 25ml 100ml

Collagen, Type IISource: Calf Articular Joint

13817 10mg 25mg

Collagenase, Type I(E.C.3.4.24.3)Source: Clostridium histolyticumDescription: Contains a mixture of collagenase,

clostripain, trypsin, caseinase and other lytic enzymes.

PRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: ≥ 125 units/mg powder (dry basis) ≥ 0.15 Wunsch units/mg powder (dry basis)Unit Definition: One unit liberates 1 µmol of

L-Leucine equivalents from collagen in 5 hr at 37°C, pH 7.5. One unit is equal to 0.0012 Wunsch units.

Contaminating Activities: Caseinase: 200 - 1000 units/mg Clostripain: 1.0 - 3.5 units/mgStorage: 4°C, protect from moisture.CAS #9001-12-1

13820 100mg 1gm 5gm

Compact Reaction Columns(CRC)

With screw-on lid, Luer-lock lid, stopper and filter insertion tools.

Upper and lower filters with a pore size appropriate to the customer’s needs must be purchased separately.

50 columns/pk

13928 1pk

Compact Reaction Columns(CRC) without screw on lids

Stopper and filter insertion tools included.Upper and lower filters with a pore size

appropriate to the customer’s needs must be purchased separately.

100 columns/pk

13929 1pk

CRC Lower Filters(2.7 mm)

10 µm pore size50 filters/pk

13911 1pk



13912 1pk



13913 1pk

CRC Upper Filters(6.8 mm)


13914 1pk



13918 1pk



13919 1pk

CRC Leur-Lock AdaptorFor connection to tubing with 1 m Teflon® tube.

13926 1adaptor

Concanavalin ASee Canavalia Ensiformis, page 202

Coomassie® StainsSee Brilliant Blue G & R, page 199

Corn-Ground Yellow Maize

13845 25lb 100lb

Bioc

hem

ical

sBiochemicals

�6 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Corn OilWith 0.01% BHA and 0.01% BHT addedCAS #8000-30-7

13851 1lb 5lb 25lb

Corn Oil-Tocopherol StrippedPRODUCT SPECIFICATIONSForm: Clear, yellow viscous liquidIdentity: By IRRefractive Index: 1.4730 - 1.4760Peroxide Value: ≤ 8 meq/kgTotal Tocopherols: ≤ 25 µg/gmCAS #8001-30-7

13852 400gm

Corn StarchSee Starch-Corn, page 290

Corticosterone(Reichstein’s Substance H)

C21

H30

O4

Formula Weight: 346.46PRODUCT SPECIFICATIONSForm: Off-white powderAssay (HPLC): ≥ 95%Identity: By IRMelting Point: 180 - 182°CStorage: 4°CCAS #50-22-6

13860 100mg 500mg 1gm

Cottonseed OilCAS #8001-29-4

13871 5lb 25lb

CozymaseSee Nicotinamide Adenine Dinucleotide, page 262

c-Reactive Protein, Recombinant(r-hCRP)

Source: Human recombinant from E. coliPRODUCT SPECIFICATIONSForm: Suspension in 20mM Tris (pH 7.5), 2mM

CaCl2, 0.14M NaCl, containing 0.05% NaN

3

Concentration: 1 mg/mlPurity: Single band at about 23k, as determined

by SDS-PAGE under reducing conditionsMolecular Weight: 115,000 which corresponds

to the pentamer structure of 23,000 monomer determined by amino acid sequence

Storage: +4°C , Do not freeze

26001 1mg 5mg

Creatine Monohydrate(Methylguanido-Acetic Acid)

NHC(NH2)N(CH

3)CH

2COOH•H

2O

Formula Weight: 149.15PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 97.0%Identity: By IRChromatography (TLC): HomogeneousMoisture (KF): ≤ 13.0%Residue on Ignition: ≤ 0.1%Heavy Metals(Pb): ≤ 50 ppmCAS #6020-87-7

13910 25gm 100gm 1kg

Creatine Kinase(E.C.2.7.3.2)Source: Rabbit MuscleUnit Definition: One unit phosphorylates 1 µmol of

creatine/min at 25°C, pH 9.0.CAS #9001-15-4

13915 100mg 1gm

Creatine Kinase MB, Recombinant(r-hCK-MB)

Source: Human recombinant from E. coliPRODUCT SPECIFICATIONSForm: Suspension in 20mM Tris-HCl (pH 8.5),

150mM NaCl, 10mM β-ME, 50% glycerol and 0.1% NaN

3.

Protein Concentration: ≥ 2 mg/mlPurity (SDS-PAGE): Single bandSpecific Activity: ≥ 500 units/mg proteinStorage: -20°C

26009 100units

Creatine Kinase MM, Recombinant(r-hCK-MM)

Source: Human recombinant from E. coliPRODUCT SPECIFICATIONSForm: Suspension in 20mM PIPES (pH 7.0),

150mM NaCl, 10mM β-ME, 10mM MgOAc, 50% glycerol and 0.1% NaN

3.

Protein Concentration: ≥ 10 mg/mlPurity (SDS-PAGE): Single bandSpecific Activity: ≥ 500 units/mg proteinStorage: -20°C

26010 100units

Creatine Phosphate, Disodium Salt, Tetrahydrate(Phosphocreatine)

C4H

8N

3O

5PNa

2•4H

2O

Formula Weight: 327.14PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0%Chromatography (TLC): HomogeneousIdentity: By IRMoisture (KF): 23.5 ± 2.5%Storage: 4°CCAS #922-32-7

13920 1gm 5gm 25gm

CreatinineC

4H

7N

3O

Formula Weight: 113.12PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 102%Identity: By IRLoss on Drying: ≤ 3.0%Residue on Ignition: ≤ 0.2%CAS #60-27-5

13930 25gm 100gm 1kg

o-Cresolphthalein ComplexoneC

32H

32N

2O

12


13937 5gm 25gm

Biochemicals

Biochemicals


Cresol Red, Sodium SaltPRODUCT SPECIFICATIONSForm: Red-brown powderIdentity: By IRVisual Transition Interval: pH 0.2 - Red pH 1.8 - Orange-yellow pH 7.0 - Yellow pH 8.8 - Purplish-redCAS #62625-29-0

13940 5gm 10gm 25gm

Crystal Violet(C.I.42555)C

25H

30ClN

3


13946 25gm 100gm

CTABSee Cetyl Trimethyl Ammonium Bromide, page 205

CTPSee Cytidine-5'-Triphosphate, page 213

Cupric Sulfate PentahydrateACS Reagent GradeCuSO

4•5H

2O

Formula Weight: 249.68PRODUCT SPECIFICATIONSForm: Blue crystalline powderAssay: 98.0 - 102.0%Insoluble Matter: ≤ 0.005%Chloride (Cl): ≤ 0.001%Nitrogen Compounds (N): ≤ 0.002%Calcium (Ca): ≤ 0.005%Iron (Fe): ≤ 0.003%Nickel (Ni): ≤ 0.005%Potassium (K): ≤ 0.01%Sodium (Na): ≤ 0.02%

13839 500gm 2.5kg

CyanocobalaminSee Vitamin B

12, page 308

Cyclic GMPSee Guanosine Cyclic Monophosphate, page 237

-CyclodextrinC

36H

60O

30

Formula Weight: 972.84PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (HPLC): ≥ 98.0%[α]20

D : +147° to +152° (c=1 in H

2O)

Loss on Drying: ≤ 12%Residue on Ignition: ≤ 0.1%Chloride (Cl): ≤ 0.018%Arsenic (As): ≤ 2 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #10016-20-3

13979 25gm

β-CyclodextrinC

42H

7OO

35

Formula Weight: 1134.98PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (HPLC): ≥ 98.0%[α]20

D : +160° to +164° (c=1 in H

2O)

Loss on Drying: ≤ 14%Residue on Ignition: ≤ 0.1%CAS #7585-39-9

13980 100gm

D-CycloserineC

3H

6N

2O

2

Formula Weight: 102.09PRODUCT SPECIFICATIONSForm: White to pale yellow crystalline powderAssay: ≥ 98.0% (dry basis) ≥ 95.0% (as is)Identity: By IR[α]25

D : +108° to +114° (c=5 in 2N NaOH)

pH (10%, H2O): 5.7 - 6.3

Loss on Drying: ≤ 1.0%Moisture (KF): ≤ 3.0%Mode of Action: Inhibits cell wall synthesis.

D-Cycloserine prevents the formation of D-Alanine from L-Alanine and the formation of peptide bonds with D-Alanine.

Stock Solution: 10 mg/ml in 0.1M sodium phosphate buffer,

pH 8.0 This solution is very unstable. Make

immediately prior to use.Working Concentration: 200 µg/mlStorage: 4°C, in tight containersCAS #68-41-7

14000 1gm 5gm 10gm 25gm

DL-Cysteic AcidCH

2(SO

3H)CH(NH

2)COOH•H

2O


14009 1gm 5gm

D-Cysteine, HydrochlorideCH

2(SH)CH(COOH)NH

2•HCl•H

2O


14015 250mg 1gm

DL-Cysteine, HydrochlorideCH

2(SH)CH(COOH)NH

2•HCl•H

2O


14020 1gm 5gm 10gm

L-Cysteine, Free BaseHS-CH

2CH(NH

2)COOH

Formula Weight: 121.16PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98% (dry basis)Identity: By IRChromatography (TLC): Homogeneous[α]20

D : +7.0° to +9.0° (c=8, 1N HCl)

Loss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.2%Heavy Metals (Pb): ≤ 10 ppmArsenic (As

2O

3): ≤ 2 ppm

Chloride (Cl): ≤ 0.05%Iron (Fe): ≤ 30 ppmSulfate (SO

4): ≤ 0.03%

CAS #52-90-4

14030 25gm 100gm 1kg

Bioc

hem

ical

sBiochemicals

�8 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

L-Cysteine, Hydrochloride, Monohydrate

HSCH2CH(NH

2)COOH•HCl•H

2O

Formula Weight: 175.63PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 101.5% (dry basis)Identity: By IRChromatography: Homogeneous[α]25

D : +5.7° to +6.8° (c=8 in in 6N HCl,

dry basis)Loss on Drying: 8.0 - 12.0%Residue on Ignition: ≤ 0.1%Sulfate (SO

4): ≤ 0.03%

Heavy Metals (Pb): ≤ 10 ppmArsenic (As): ≤ 1.5 ppmChloride (Cl): 19.8 - 20.8%Iron (Fe): ≤ 10 ppmCAS #7048-04-6

14035 25gm 100gm 1kg 5kg

D-Cystine[-SCH

2CH(NH

2)COOH]

2

Formula Weight: 240.30PRODUCT SPECIFICATIONSForm: White crystalline powderIdentity: By IRChromatography (TLC): Homogeneous[α]20

D : +211° to +219° (c=2 in 1N HCl)

CAS #349-46-2

14040 250mg 500mg 1gm

DL-Cystine[-SCH

2CH(NH

2)COOH]

2

Formula Weight: 240.30PRODUCT SPECIFICATIONSForm: White powderIdentity: By IRPurity: ≥ 99%CAS #923-32-0

14045 1gm 5gm

L-CystineCP Grade[-SCH

2CH(NH

2)COOH]

2

Formula Weight: 240.30PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 101.5% (dry basis)Identity: By IR[α]20

D : -215° to -225° (c=2 in 1N HCl)

Loss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 20 ppmLead (Pb): ≤ 10 ppmCAS #56-89-3

14050 50gm 100gm 1kg 5kg

L-Cystine, DihydrochlorideC

6H

12N

2O

4S

2•2HCl

Formula Weight: 313.22Water Soluble. Suggested for use in the

preparation of tissue culture media.PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (dry basis)Chromatography (TLC): HomogeneousIdentity: By IR[α]20

D : -215° to -225°, dry basis, as diHCl;

(c=2 in 1N HCl)Loss on Drying: ≤ 1.0%Solubility (10 mg/100 ml): Passes test

14051 100gm

L-Cystine, Disodium Salt, Monohydrate[-SCH

2CH(NH

2)COO]

2•2Na•H

2O

Formula Weight: 302.28PRODUCT SPECIFICATIONSForm: White to off-white powderIdentity: By IRChromatography (TLC): HomogeneouspH (5%, H

2O): 10.5 ± 0.5

Solubility: Passes test[α]20

D : -181° to -191° (c=2 in 1N HCl)

Loss on Drying: ≤ 6% (110°C, 4 hrs)CAS #64704-23-0

14021 25gm 100gm 1kg

Cytidine, Free BaseC

9H

13N

3O

5

Formula Weight: 243.22PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (UV): ≥ 97.5%Identity: By IRλ

max (pH 1.0): 280 nm ± 2 nm


250/A

260: 0.45 ± 0.02

A280

/A260



εmax

(pH 7, NRC ): 9.1 x 103

ε260

(pH 7, DBR ): 7.55 x 103

CAS #65-46-3

14060 5gm 10gm 25gm 100gm

Cytidine-5'-Monophosphate, Free Acid(CMP)

C9H

14N

3O

8P

Formula Weight: 323.20PRODUCT SPECIFICATIONSForm: White crystalline powderPurity: ≥ 98%Loss on Drying: ≤ 6%Reference Constants:λ


εmax

(pH 7, NRC ): 9.1 x 103

ε260

(pH 7, DBR ): 7.4 x 103


14113 1gm 5gm 10gm

Cytidine-5'-Monophosphate, Disodium Salt(CMP)

C9H

12N

3O

8PNa

2•7H

2O

Formula Weight: 493.27Reference Constants:λ


εmax

(pH 7, NRC ): 9.1 x 103

ε260

(pH 7, DBR ): 7.4 x 103


14110 1gm 5gm 10gm 100gm

Biochemicals

Biochemicals


Cytidine 5'-Triphosphate, 100mM Solution(CTP)

ULTRAPUREC

9H

12N

3O

14P

3Na

4


77242 25µmol(250µl)

Cytidine-5'-Triphosphate, Disodium Salt, Dihydrate(CTP)

C9H

14N

3O

14P

3Na

2•2H

2O

Formula Weight: 527.13 (anhydrous)Formula Weight: 563.16 (dihydrate)PRODUCT SPECIFICATIONSForm: White powderAssay (Total UV, pH 2.0): ≥ 98.0%λ

max: 280 nm ± 1 nm

εmax

: (pH 2.0): [13.0 ± 0.3] x 103


250/A

260: 0.45 ± 0.05

A280

/A260

: 2.10 ± 0.07Moisture (KF): ≤ 12.0%Reference Constants:λ


εmax

(pH 7, NRC ): 9.1 x 103

ε260

(pH 7, DBR ): 7.4 x 103


14121 25mg 100mg 500mg 1gm

Cytochrome CSource: Horse HeartPRODUCT SPECIFICATIONSForm: Reddish or dark brown crystalline powderAssay: ≥ 90.0% (dry basis)Identity: Passes testpH (1%, H

2O): 5.0 - 7.0

Moisture (KF): ≤ 6.0%Iron (Fe): 0.40 to 0.50%Residue on Ignition: ≤ 1.5%Solubility (10%, H

2O): Clear dark red solution

Storage: -20°C

14102 100mg 500mg 1gm

CytosineC

4H

5N

3O



εmax

(pH 7, NRC ): 6.1 x 103

ε260

(pH 7, DBR ): 2.6 x 103

CAS #71-30-7

14130 5gm 10gm 25gm 100gm

Cytosine Arabinoside

ULTRAPUREC

9H

13N

3O

5


D : +157° ± 3° (c=1, H

2O)

λmax

: 281 nm ± 2 nmε

max: (13.5 + 0.4) x 103

Melting Point: 215 ± 5°CLoss on Drying: ≤ 1.0%Storage: 4°C

14138 500mg 1gm 10gm

n-Decyl-N,N-Dimethyl-3-Ammonio-1-Propane-Sulfonate

See Sulfobetaine 10 (SB3-10), page 292

DAPI(4',6-Diamidino-2-Phenylindole Dihydrochloride)

C16

H15

N5•2HCl

Formula Weight: 350.25PRODUCT SPECIFICATIONS:Form: Yellow powderAssay (HPLC): ≥ 98%Identity: By IRSolubility (1%, H

2O): Clear

Nitrogen: ≥ 18.0%Applications:•Cytochemical technique for demonstration of

DNA in cells infected with mycoplasmas and viruses(1)

•Interaction of DAPI with synthetic polynucleotides(2)

•DAPI-stained cells can be fixed for high resolution flow cytometry(3)

•Reverse fluorescent chromosome banding by double-staining with chromomycin and DAPI(4)

•Binding of DAPI to GC and mixed sequences in DNA with an intercalation of a groove-binding molecule(5)

Notes: DAPI is an excellent dye for the staining of DNA. Originally, only the specific binding to AT-base pairs without an intercalation was known(2). Later on, the intercalation into GC-base pairs was shown. The most popular application of DAPI is its use as a reagent to detect mycoplasma or virus DNA (e.g. vaccinia infection or ‘unwanted’ viral contamination of cell culture cells) in cell culture. Reference 1 describes a simple procedure to stain DNA with DAPI: Grow cells on a coverslip in a cell culture dish. Wash the coverslip once with PBS. Incubate the cells on the coverslip at 37°C for 15 - 30 minutes in 0.1 µg DAPI/ml PBS. Wash the coverslip in PBS and put it up-side-down on a slide. Examine the cells under a microscope (excitation: 365 nm; emission maximum at 450 nm). Prolonged incubation with DAPI increases the nuclear fluorescence; shorter incubation time leads to a weaker nuclear staining, which facilitates the examination of the cytoplasmic fluorescence.

DAPI can be dissolved in water, PBS, 5mM Tris-HCl (pH 7.6)/8mM NaCl, citrate or phosphate buffer(3). The solubility is approximately 2.5%. Stock solutions are prepared at concentrations ranging from 1-2 mg/ml and the working dilution is 1:1000. DAPI solution is stable at room temperature for 1 - 2 weeks(3), at 4°C up to 6 months, and at -20°C for 6 - 12 months. DAPI has hydrolyzed if the solution becomes turbid. DAPI bleaches quickly in contact with light, even though it is quite stable against UV-light.

References:1. Russel, W. C., Newman, C. and Williamson, D.

H. (1975) Nature 253, 461-462.2. Kapuscinski, J. and Szer, W. (1979) Nucleic

Acids Res. 6, 3519-3534. 3. Otto, F. (1990) Methods Cell Biol. 33, 105-

110.4. Schweizer, D. (1976) Chromosoma. 29, 307-

324.5. Wilson, W. D., Tanious, F. A., Barton, H. J.,

Jones, R. L., Fox, K., Wydra, R. L. and Strekowski, L. (1990) Biochem. 11, 8452-8461.


14564 10mg 50mg

Bioc

hem

ical

sBiochemicals

50 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Denhardt’s Solution, 50X

ULTRAPUREMB GradeForm: 50X solution of 1% acetylated bovine

serum albumin (0.2 µm filtered), 1% Ficoll (autoclaved before use) and 1% PVP-90 (autoclaved before use). Dispensed into autoclaved bottles.

Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes testStorage: -20°CApplication: •For use as a blocking reagent in nucleic acid

hybridization techniquesFormamide Hybridization Buffer: 50%

Formamide, 5X SSC, 0.5% SDS, 5X Denhardt’s Solution, 100 µg/ml sonicated fish sperm DNA

Reagent Amount for every 100 mlFormamide* 50 ml20X SSC* 25 ml20% SDS* 2.5 ml50X Denhardt’s Solution* 10 ml10 mg/ml fish DNA 1.0 mlWater* up to 100 ml*Denotes Ultrapure Reagent available from USB.Reference:1. Sambrook, J., Fritsch, E. F. and Maniatis, T.

(1989) Molecular Cloning, 2nd Edition, Cold Spring Harbor Laboratory.

70468 50ml

2'-DeoxyadenosineC

10H

13N

5O

3•H

2O

Formula Weight: 269.26PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (Total UV): ≥ 98%Identity: By IRλ

max: 258-260 nm

Spectral Ratios: A

250/A

260: 0.77 ± 0.04

A280

/A260



εmax

(pH 7, NRC ): 14.9 x 103

ε260

(pH 7, DBR ): 15.2 x 103

CAS #16373-93-6

14235 1gm 5gm 25gm

2'-Deoxyadenosine-5'-Monophosphate, Free Acid(dAMP)

C10

H14

N5O

6P•nH

2O


Reference Constants:λ


εmax

(pH 7, DBR ): 15.4 x 103

ε260

(pH 7, DBR ): 15.3 x 103


14225 100mg 250mg

2'-Deoxyadenosine-5'-Triphosphate, Lithium Salt, 100mM Solution(dATP)

ULTRAPUREC

10H

12N

5O

12P

3Li

4

Formula Weight: 514.87PRODUCT SPECIFICATIONSForm: 100mM Solution, pH 7.1Assay (HPLC): ≥ 98.0%pH: 7.0 ± 0.2λ

max: 260 nm ± 1 nm

Spectral Ratios: A

250/A

260: 0.78 ± 0.02

A280

/A260

: 0.15 ± 0.01Storage: -20°C

77302 25µmol(250µl)

2'-Deoxyadenosine-5'-Triphosphate, Sodium Salt, 100mM Solution(dATP)

ULTRAPUREC

10H

12N

5O

12P

3Na

4

Formula Weight: 579.11PRODUCT SPECIFICATIONSForm: 100mM aqueous solutionAssay (HPLC): ≥ 99%pH: 7.5 ± 0.2λ

max: 259 nm ± 1 nm

Spectral Ratios: A

250/A

260: 0.80 ± 0.03

A280

/A260

: 0.12 ± 0.02Functional Tests: Meets or exceeds criteria for

high quality sequencing. Functionally tested in long PCR.

Storage: -20°C

77102 25µmol(250µl) 100µmol(1ml) 500µmol(5ml)

2'-Deoxyadenosine-5'-Triphosphate, Disodium Salt(dATP)

C10

H14

N5O

12P

3Na

2•nH

2O


PRODUCT SPECIFICATIONSForm: White powderAssay (Total UV, pH 7.0): 97.0 - 103.0%

(dry basis)Assay (HPLC): ≥ 95% (as is)λ

max (pH 7.0): 259 nm ± 1 nm

εmax

(pH 7.0): [15.2 ± 0.5] x 103


250/A

260: 0.78 ± 0.03

A280

/A260

: 0.15 ± 0.02Note: Water of hydration may vary up to a

trihydrate.Reference Constants:λ


εmax

(pH 7, DBR ): 15.3 x 103

ε260

(pH 7, DBR ): 15.4 x 103

Storage: -20°CCAS #1927-31-7

14245 10mg 25mg 100mg 1gm

Deoxycholic Acid, Sodium SaltSodium Deoxycholate

C24

H39

NaO4

Formula Weight: 414.55PRODUCT SPECIFICATIONSForm: White to off-white powderAssay (HPLC): ≥ 98% (dry basis)Identity: By IRLoss on Drying (4 hr, 140°C, vacuum): ≤ 6%Sodium Cholate: ≤ 2%CAS #302-95-4

21026 25gm 100gm

2'-Deoxycytidine, Free BaseC

9H

13N

3O

4



εmax

(pH 7, NRC ): 9.0 x 103

ε260

(pH 7, DBR ): 7.4 x 103

CAS #951-77-9

14260 500mg 1gm 5gm

Biochemicals

Biochemicals


2'-Deoxycytidine, HydrochlorideC

9H

13N

3O

4•HCl

Formula Weight: 263.68PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 100 ± 3% (dry basis)Identity: By IRλ

max: 280 ± 2 nm


250/A

260: 0.43 ± 0.03

A280

/A260

: 2.10 ± 0.10Loss on Drying (105°C, 4 hrs): ≤ 1%Heavy Metals: ≤ 10 ppmReference Constants:λ


εmax

(pH 7, NRC ): 9.0 x 103

ε260

(pH 7, DBR ): 7.4 x 103

CAS #3992-42-5

14270 500mg 1gm 5gm 10gm 25gm

2'-Deoxycytidine, Hydrochloride, Synthetic

C9H

13N

3O

4•HCI

Formula Weight: 263.68PRODUCT SPECIFICATIONSForm: White crytalline powderAssay (Total UV): ≥ 98% (dry basis)Identity: By IRλ

max: 280 ± 2 nm

εmax

(pH 1.0): 13.2 x 103 ± 2%Spectral Ratios (pH 1.0): A

250/A

260: 0.43 ± 0.03

A280

/A260

: 2.10 ± 0.05Moisture (KF): ≤ 1%Heavy Metals: ≤ 10 ppmCAS #3992-42-5

14284

2'-Deoxycytidine-5'-Monophosphate, Disodium Salt(dCMP)

C9H

12N

3O

7PNa

2•nH

2O




εmax

(pH 7, NRC ): 9.1 x 103

ε260

(pH 7, DBR ): 7.4 x 103


14275 100mg 250mg 1gm

2'-Deoxycytidine-5'-Triphosphate, Lithium Salt, 100mM Solution(dCTP)

ULTRAPUREC

9H

12N

3O

13P

3Li

4

Formula Weight: 409.88PRODUCT SPECIFICATIONSForm: 100mM solution, pH 7.1Assay (HPLC): ≥ 98.0%pH: 7.0 ± 0.2λ

max: 272 nm ± 1 nm

Spectral Ratios: A

250/A

260: 0.82 ± 0.02

A280

/A260

: 0.99 ± 0.02 A

290/A

260: 0.30 ± 0.02

Storage: -20°C

77304 25µmol(250µl)

2'-Deoxycytidine-5'-Triphosphate, Sodium Salt, 100mM Solution(dCTP)

ULTRAPUREC

9H

12N

3O

13P

3Na

4

Formula Weight: 555.08PRODUCT SPECIFICATIONSForm: 100mM aqueous solutionpH 7.5: 7.5 ± 0.2Assay (HPLC): ≥ 99%λ

max (pH 2.0): 280 nm ± 1 nm


250/A

260: 0.45 ± 0.03

A280

/A260

: 2.10 ± 0.15 A

290/A

260: 1.60 ± 0.10

Functional Test: Meets or exceeds criteria for high quality sequencing. Functionally tested in long PCR.

Storage: -20°C


2'-Deoxycytidine-5'-Triphosphate, Trisodium Salt(dCTP)

C9H

13N

3O

13P

3Na

3•nH

2O


PRODUCT SPECIFICATIONSForm: White powderAssay (Total UV, pH 2.0): ≥ 95.0% (dry basis)Assay (HPLC): ≥ 95.0% (as is)λ

max (pH 2.0): 280 nm ± 1 nm

εmax

(pH 2.0): [13.0 ± 0.6] x 103


250/A

260: 0.45 ± 0.03

A280

/A260

: 2.10 ± 0.15Reference Constants:λ


εmax

(pH 7, DBR ): 9.1 x 103

ε260

(pH 7, DBR ): 7.4 x 103

Storage: -20°CCAS #102783-51-7

14280 10mg 25mg 100mg 250mg

Deoxycytidylic AcidSee 2'-Deoxycytidine-5'-Monophosphate,

page 215

2-Deoxy-D-GlucoseC

6H

12O

5

Formula Weight: 164.16PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay (HPLC): ≥ 98%Identity: By IRChromatography (TLC): Homogeneous[α]20

D : +46° ± 2° (c=1 in H

2O, 24 hr)

Moisture (KF): ≤ 1.0%CAS #154-17-6

14290 1gm 5gm 25gm

Bioc

hem

ical

sBiochemicals

5� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

2'-DeoxyguanosineC

10H

13N

5O

4•H

2O

Formula Weight: 285.26PRODUCT SPECIFICATIONSForm: White granular powderAssay (HPLC): ≥ 97%Identity: By IRChromatography (TLC): Homogeneousλ

max: 253 ± 2 nm

εmax

: 12800-14300Spectral Ratios (pH 7.0): A

250/A

260: 1.09 - 1.21

A280

/A260

: 0.63 - 0.71Moisture (KF): ≤ 9%Reference Constants:λ


εmax

(pH 7, NRC ): 13.0 x 103

CAS #961-07-9

14300 1gm 5gm 25gm 100gm

2'-Deoxyguanosine, Monohydrate Synthetic

C10

H13

N5O

4•H

2O

Formula Weight: 285.26PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98% (dry basis)Chromatography (TLC): HomogeneousIdentity: By IRλ

max (pH 7.0): 253 ± 2 nm

εmax

(pH 7.0): (13.7 x 103) ± 4%Spectral Ratios (pH 7): A

250/A

260: 1.12 - 1.18

A280

/A260

: 0.65 - 0.69Moisture (KF): ≤ 7.0%CAS #961-07-9

14304

2'-Deoxyguanosine-5'-Diphosphate, Disodium Salt(dGDP)

C10

H13

N5O

10P

2Na

2•nH

2O




εmax

(pH 7, NRC ): 13.8 x 103

ε260

(pH 7, DBR ): 11.8 x 103

Storage: -20°CCAS #102783-74-4

14305 10mg 50mg 100mg

2'-Deoxyguanosine-5'-Monophosphate, Disodium Salt(dGMP)

C10

H12

N5O

7PNa

2•nH

2O




εmax

(pH 7, NRC ): 13.8 x 103

ε260

(pH 7, DBR ): 11.8 x 103

Storage: -20°CCAS #33430-61-4

14310 100mg 250mg 1gm

2'-Deoxyguanosine-5'-Triphosphate Lithium Salt, 100mM Solution(dGTP)

ULTRAPUREC

10H

12N

5O

13P

3Li

4


max: 252 nm ± 1 nm

Spectral Ratios: A

250/A

260: 1.16 ± 0.02

A280

/A260

: 0.67 ± 0.02Storage: -20°C

77306 25µmol(250µl)

7-deaza-2'-Deoxyguanosine-5'-Triphosphate, Lithium Salt, 10mM Solution(7-deaza-dGTP)

C11

H15

N4O

13P

3Li

2

Formula Weight: 518.10Form: 10mM aqueous solutionAssay (FPLC): 85%pH: 7.0λ

max: 259 nm ± 1 nm

Functional Tests: Meets or exceeds criteria for high quality sequencing.

Storage: -20°C

70065 2µmol

2'-Deoxyguanosine-5'-Triphosphate, Sodium Salt, 100mM Solution(dGTP)

ULTRAPUREC

10H

12N

5O

13P

3Na

4


max: 252 nm ± 1 nm


250/A

260: 1.18 ± 0.04

A280

/A260

: 0.67 ± 0.03 A

290/A

260: 0.28 ± 0.03

Functional Test: Meets or exceeds criteria for high quality sequencing. Functionally tested in long PCR.

Storage: -20°C


2'-Deoxyguanosine-5'-Triphosphate, Trisodium Salt(dGTP)

C10

H13

N5O

13P

3Na

3•nH

2O


PRODUCT SPECIFICATIONSForm: White powderAssay (Total UV, pH 7.5): ≥ 96.0% (dry basis)Assay (HPLC): ≥ 95.0% (as is)λ

max: (pH 7.5) 253 nm ± 1 nm

εmax

: (pH 7.5) (13.7 ± 0.6) x 103


250/A

260: 1.18 ± 0.04

A280

/A260



εmax

(pH 7, DBR ): 13.7 x 103

ε260

(pH 7, DBR ): 11.9 x 103

Storage: -20°CCAS #93919-41-6

14315 10mg 25mg 100mg 250mg

Biochemicals

Biochemicals


2'-DeoxyinosineC

10H

12N

4O

4



εmax

(pH 7, NRC ): 12.8 x 103


14320 250mg 1gm 5gm

2'-Deoxyinosine-5'-Triphosphate, Sodium Salt, 100mM Solution(dITP)

ULTRAPUREC

10H

12N

4O

13P

3Na

4

Formula Weight: 581.10PRODUCT SPECIFICATIONSForm: 100mM aqueous solution, pH 7.5Assay (HPLC): ≥ 99%λ

max: 249 nm ± 1 nm


250/A

260: 1.70 ± 0.10

A280

/A260

: 0.23 ± 0.02Functional Test: Meets or exceeds criteria for

high quality sequencing.Storage: -20°C


2'-Deoxyinosine-5'-Triphosphate, Sodium Salt(dITP)

C10

H12

N4O

13P

3Na

3•2H

2O

Formula Weight: 594.14PRODUCT SPECIFICATIONSForm: PowderAssay (Total UV): 97 ± 4%Assay (HPLC): 97 ± 4%λ

max: 249 nm

εmax

: [11.8 ± 0.5] x 103

Spectral Ratios: A

250/A

260: 1.68 ± 0.04

A280

/A260



εmax

(pH 6, DBR ): 12.2 x 103

Storage: -20°CCAS #95648-77-4

14335 25mg

6-Deoxy-L-MannoseSee L-Rhamnose, page 282

2'-Deoxynucleoside-5'-Triphosphates, Sodium Salt, 100mM Solutions, Sets of Four(dNTPs)

ULTRAPUREForm: 100mM aqueous solutions, pH 7.5; dATP,

dCTP, dGTP, dTTPStorage: -20°C

4x25µmol(250µl)eachdNTPperpack77100 1pk4x100µmol(1ml)eachdNTPperpack77328 1pk4x500µmol(5ml)eachdNTPperpack77128 1pk

2'-Deoxynucleoside-5'-Triphosphate Mixes

See PCR Nucleotide Mixes, page 268

2-Deoxy-D-Ribose

ULTRAPUREC

5H

10O

4

Formula Weight: 134.13PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98.0%[α]20

D : -57.3° ± 1.5°(c=1 in H

2O)

Loss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.5%Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 5 ppmCAS #533-67-5

14420 5gm 25gm 100gm

2'-DeoxythymidineSee Thymidine, page 298

2'-Deoxythymidine-5'-Diphosphate, Sodium Salt(Thymidine-5'-Diphosphate)

C10

H13

N2O

11P

2Na

3•nH

2O


Storage: -20°CCAS #108322-12-9

22310 10mg 25mg 100mg

2'-Deoxythymidine-5'-Monophosphate, Disodium Salt(Thymidine-5'-Monophosphate; Thymidylic Acid)

C10

H13

N2O

8PNa

2•nH

2O




εmax

(pH 7, NRC ): 9.6 x 103

ε260

(pH 7, DBR ): 9.3 x 103


22320 250mg 1gm

2'-Deoxythymidine-5'-Triphosphate, Trisodium Salt(dTTP; Thymidine-5'-Triphosphate)

C10

H14

N2O

14P

3Na

3•nH

2O


PRODUCT SPECIFICATIONSForm: White powderAssay (pH 7.0): ≥ 96.0% (dry basis)Moisture: By KFλ

max (pH 7.0): 267 nm ± 1 nm

εmax

(pH 7.0): (9.6 ± 0.4) x 103


250/A

260: 0.65 ± 0.03

A280

/A260



εmax

(pH 7, DBR ): 9.6 x 103

ε260

(pH 7, DBR ): 9.3 x 103

Storage: -20°CCAS #18423-43-3

22325 10mg 25mg 50mg

Bioc

hem

ical

sBiochemicals

5� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

2'-Deoxythymidine-5'-Triphosphate, Lithium Salt, 100mM Solution(dTTP)

ULTRAPUREC

10H

13N

2O

14P

3Li

4


max: 267 nm ± 1 nm

Spectral Ratios: A

250/A

260: 0.64 ± 0.02

A280

/A260

: 0.74 ± 0.02Storage: -20°C

77308 25µmol(250µl)

2'-Deoxythymidine-5'-Triphosphate, Sodium Salt, 100mM Solution(dTTP)

ULTRAPUREC

10H

13N

2O

14P

3Na

4


max: 267 nm ± 1 nm


250/A

260: 0.65 ± 0.03

A280

/A260


high quality sequencing. Functionally tested in long PCR.

Storage: -20°C


2'-DeoxyuridineC

9H

12N

2O

5



εmax

(pH 7, NRC ): 10.2 x 103

ε260

(pH 7, DBR ): 10.1 x 103

CAS #951-78-0

14425 250mg 1gm 5gm 25gm

2'-Deoxyuridine-5'-Monophosphate, Disodium Salt(dUMP)

C9H

11N

2O

8PNa

2•nH

2O


PRODUCT SPECIFICATIONS Form: White crystalline powderAssay (UV): 100 ± 5% (dry basis)Chromatography (TLC): Homogeneous Spectral Ratios:

A280

/A260

: 0.37 ± 0.03 A

250/A

260: 0.73 ± 0.03

Moisture (KF): ≤ 16%Reference Constants:λ


εmax

(pH 7, NRC ): 10.2 x 103

ε260

(pH 7, DBR ): 10.1 x 103

Storage: -20°CCAS #42155-08-8

14430 100mg 250mg 500mg 1gm

2'-Deoxyuridine-5'-Triphosphate, Sodium Salt, 100mM Solution(dUTP)

ULTRAPUREC

9H

11N

5O

12P

3Na

4

Formula Weight: 556.1Form: 100mM aqueous solutionpH: 7.5 ± 0.2Storage: -20°C


DEPCSee Diethyl Pyrocarbonate, page 221

DexamethasoneUSBioAnalyzedC

22H

29FO

5

Formula Weight: 392.46PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (HPLC): 97.0 - 102.0% (dry basis)Identity: By IRChromatographic Purity: Passes testLoss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.2%O.V.I.: Meets requirementsCAS #50-02-2

76500 100mg 500mg 1gm 5gm

DextranM.W.: < 15,000CAS #9004-54-0

14475 10gm 100gm 1kg

DextranM.W.: 15,000 - 20,000CAS #9004-54-0

14485 100gm 1kg

DextranM.W.: 35,000 - 50,000CAS #9004-54-0

14490 100gm 1kg

Dextran

ULTRAPUREM.W.: 60,000 - 90,000PRODUCT SPECIFICATIONSForm: White powderpH (6% w/v in KCl): 5.0 - 6.5Loss on Drying: ≤ 7.0%Residue on Ignition: ≤ 1.9%CAS #9004-54-0

14495 10gm 100gm 1kg

Biochemicals

Biochemicals


DextranM.W.: 200,000 - 300,000PRODUCT SPECIFICATIONSForm: White powderLoss on Drying: ≤ 5.0%Ash: ≤ 2.0%pH (6%, H

2O): 5.0 - 7.0

CAS #9004-54-0

14500 100gm 1kg

DextranM.W.: 5,000,000 - 40,000,000CAS #9004-54-0

14505 100gm 1kg

Dextran Sulfate, Sodium SaltM.W.: < 15,000CAS #9011-18-1

14517 1gm 5gm 10gm 50gm

Dextran Sulfate, Sodium SaltM.W.: 40,000 - 50,000

14489 10gm 50gm 100gm

Dextran Sulfate, Sodium SaltM.W.: 500,000CAS #9011-18-1

14515 5gm 25gm 100gm

Dextran Sulfate, Sodium Salt

ULTRAPUREMW: 500,000*PRODUCT SPECIFICATIONSForm: White to off-white powderLoss on Drying: ≤ 10%pH (1%, H

2O): 5.0-7.5

Residue on Ignition: 40 - 50%*Note: Approximate molecular weight of dextran

used in the production of the sulfate. Average MW of dextran sulfate sodium salt is approx. 1,400,000.

CAS #9011-18-1

70796 10gm 50gm

DextrinCAS #9004-53-9

14530 5lb 25lb

D-(+)-Dextrose, Anhydrous(α-D-(+)-Glucose)

CH2OH(CHOH)

4CHO

Formula Weight: 180.16PRODUCT SPECIFICATIONSForm: White crystalline powderIdentity: By IR[α]25

D : +52.6° to +53.2° (dry basis, c=10 in

0.012N NH4OH)

Moisture (KF): ≤ 1.0%CAS #50-99-7

14535 1kg 5lb 25lb 100lb

D-(+)-Dextrose, Monohydrate(α-D-(+)-Glucose)

C6H

12O

6•H

2O


14536 10kg

Diadenosine Pentaphosphate, Trilithium Salt(Ap5A-Li)

C20

H26

N10

O22

P5Li

3•4H

2O

Formula Weight: 916.37 (as anhydrous free acid) 1006.23 (Ap5A•Li•4H

2O)

PRODUCT SPECIFICATIONSForm: White powderPurity (HPLC): ≥ 90%Lithium (Li): 3.0 ± 1.5%Moisture (KF): ≤ 10%Storage: -20°C, protect from moistureCAS #75522-97-3

26140 25mg 200mg

DL-α-ε-Diaminopimelic AcidC

7H

14N

2O

4


14575 1gm 5gm 10gm

Diaphorase(E.C.1.8.1.4)Source: Clostridium kluyveriForm: Lyophilized powderUnit Definition: One unit causes a decrease in

absorbance of 1.0 per min due to the reduction of DCPIP by NADH 25°C, pH 7.5.

Storage: 4°C, protect from moisture.CAS #9001-18-7

14615 600units 1,800units

Diastase(E.C.3.2.1.2)Source: MaltForm: Powder stabilized with lactoseActivity: 500° Lintner units/gm

14625 100gm 500gm 1kg

Diastase(E.C.3.2.1.2)Source: MaltForm: Powder stabilized with lactoseActivity: 1,000° Lintner units/gm

14626 100gm 500gm

Bioc

hem

ical

sBiochemicals

56 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Diazo Blue B(Zinc Chloride o-Dianisidine, Tetrazotized)

C14

H12

Cl2N

4O

2•ZnCl

2


14645 100gm

2,4-Dichlorophenoxyacetic AcidC

8H

6Cl

2O

3

Formula Weight: 221.04PRODUCT SPECIFICATIONSForm: Cream to yellow colored flakesAssay: ≥ 97.0%Identity: By IRMoisture (KF): ≤ 1.0%Melting Point: 136 - 142°C CAS #94-75-7

14670 100gm 1kg

2',3'-DideoxyadenosineC

10H

13N

5O

2


14691 5mg 10mg 25mg

2',3'-Dideoxyadenosine-5'-Triphosphate(ddATP)

ULTRAPUREC

10H

12N

5O

11P

3Na

4

Formula Weight: 563.11PRODUCT SPECIFICATIONSAssay (FPLC): ≥ 99%pH: 7.5 ± 0.2λ

max: 259 nm ± 1 nm


250/A

260: 0.80 ± 0.03

A280

/A260

: 0.12 ± 0.02Functional Test: Meets or exceeds criteria for


10mMaqueoussolution,pH7.577110 0.5µmol(50µl) 1µmol(100µl)100mMaqueoussolution,pH7.577331 4µmol(40µl) 50µmol(500µl)

2',3'-Dideoxycytidine-5'-Triphosphate(ddCTP)

ULTRAPUREC

9H

12N

3O

12P

3Na

4


max (pH 2.0): 280 nm ± 1 nm


250/A

260: 0.45 ± 0.03

A280

/A260

: 2.20 ± 0.20 A

290/A

260: 1.70 ± 0.20

Functional Test: Meets or exceeds criteria for high quality sequencing.

Storage: -20°C


2',3'-Dideoxyguanosine-5'-Triphosphate(ddGTP)

ULTRAPUREC

10H

12N

5O

12P

3Na

4


max (pH 7.5): 252 nm ± 1 nm


250/A

260: 1.18 ± 0.04

A280

/A260

: 0.67 ± 0.03 A

290/A

260: 0.28 ± 0.03

Functional Test: Meets or exceeds criteria for high quality sequencing.

Storage: -20°C


2',3'-Dideoxynucleoside-5'-Triphosphates, 10mM Solutions, Sets of Four(ddNTPs)

ULTRAPUREForm: 10mM aqueous solutions, pH 7.5; ddATP,

ddCTP, ddGTP, ddTTPStorage: -20°C

4x0.5µmol(50µl)77126 1pk4x1.0µmol(100µl)77125 1pk

2',3'-Dideoxynucleoside-5'-Triphosphates, 100mM Solutions, Set of Four(ddNTPs)

ULTRAPUREForm: 100mM aqueous solutions, pH 7.5; ddATP,

ddCTP, ddGTP, ddTTPStorage: -20°C

4x4µmol(40µl)eachddNTPperpack77335 1pk

2',3'-Dideoxythymidine-5'-Triphosphate(ddTTP)

ULTRAPUREC

10H

13N

2O

13P

3Na

4


max (pH 7.5): 267 nm ± 1 nm


250/A

260: 0.65 ± 0.03

A280

/A260




Biochemicals

Biochemicals


Diethyl Pyrocarbonate(DEPC)

ULTRAPUREO(COOC

2H

5)2

Formula Weight: 162.14PRODUCT SPECIFICATIONSForm: Clear, colorless liquidAssay: ≥ 97%Density (20°C): 1.121 ± 0.005Refractive Index (20°C): 1.398 ± 0.005Applications:•A strong, nonspecific inhibitor of ribonuclease•Reacts with the N1 of histidine residues in

proteins under mild conditions•Used to cross-link and modify proteins by

ethoxyformylation of NH2 and imidazole groups

in proteins•Reacts with amines and thus cannot be used

with Tris BufferReferences:1. Tsurushiin, S., Hiramatsu, A., Inamasu, M. and

Yasunobu, K. T. (1975) Biochim. Biophys. Acta. 400, 451-460.

2. Meyer, S. E. and Cromartie, T. H. (1980) Biochemistry 19, 1874-1881.

3. Berger, S. L. (1975) Anal. Biochem. 67, 428-437.

4. Leonard, N. J., Mcdonald, J. J., Henderson, R. E. and Reichmann, M. E. (1971) Biochemistry 10, 3335-3342.

5. Roberts, M. F., Deems, R. A., Mincey, T. C. and Dennis, E. A. (1977) J. Biol. Chem. 252, 2405-2411.

Storage: -20°CCAS #1609-47-8

14710 25ml 100ml

Dihydrostreptomycin SulfateUSBioAnalyzed(C

21H

41N

7O

12)2•3H

2SO

4

Formula Weight: 1461.42PRODUCT SPECIFICATIONSForm: White to off-white powderActivity: ≥ 650 µg of C

21H

41N

7O

12/mg (as is)

Identity (A, B): Passes testspH (200 mg dihydrostreptomycin/ml): 4.5 - 7.0Loss on Drying: ≤ 5.0%Streptomycin: ≤ 3.0%CAS #5490-27-7

14765 25gm 100gm

Dimedone(5,5-Dimethyl-1,3-Cyclohexanedione)

C8H

12O

2

Formula Weight: 140.18PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: ≥ 99%Identity: By IRMelting Point: 147 - 150°CSolubility (5% EtOH): Passes testCAS #126-81-8

14850 10gm 100gm 1kg

p-Dimethylamino Benzaldehyde(CH

3)2NC

6H

4CHO

Formula Weight: 149.19PRODUCT SPECIFICATIONSForm: Light tan powderIdentity: By IRChromatography (TLC): HomogeneousMelting Point: 70 - 75°CCAS #100-10-7

14868 25gm 100gm 500gm

p-Dimethylamino Cinnamaldehyde(CH

3)2NC

6H

4CH:CHCHO


14872 25gm

N,N-Dimethyl Formamide

ULTRAPUREHCON(CH

3)2

Formula Weight: 73.10PRODUCT SPECIFICATIONSForm: Colorless, clear liquidAssay (GC): ≥ 99.5%Used for dissolving X-GAL and X-GLUC.CAS #68-12-2

14862 250ml

3,3-Dimethyl Glutaric AcidCH

2COOHC(CH

3)2CH

2COOH

Formula Weight: 160.17PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: ≥ 98.0% (as is)Identity: By IRLoss on Drying: ≤ 2.0%CAS #4839-46-7

14910 10gm 25gm 100gm

5,5'-Dithiobis-(2-Nitrobenzoic) Acid(DTNB; Ellman’s Reagent)

C14

H6N

2O

8S

2

Formula Weight: 396.36PRODUCT SPECIFICATIONSForm: Light yellow crystalline powderAssay: ≥ 99.0% Chromatography (TLC): HomogeneousIdentity: By IR Melting Range: 236 - 248°CCAS #69-78-3

15375 5gm 25gm 100gm

Dithioerythritol(DTE)

ULTRAPUREC

4H

10O

2S

2

Formula Weight: 154.25Form: White crystalline powderChromatography (TLC): HomogeneousAssay (I

2): ≥ 99%

Melting Point: ≥ 81°CA (283 nm, 0.02M, H

2O): ≤ 0.04

Storage: -20°CCAS #6892-68-8

15385 1gm 5gm 25gm 100gm

Bioc

hem

ical

sBiochemicals

58 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Dithiothreitol(DTT; Cleland’s Reagent)

ULTRAPUREMB GradeC

4H

10O

2S

2

Formula Weight.: 154.25PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (SH): ≥ 99.5%A (280 nm, 0.1M, 1 cm): ≤ 0.08A (260 nm, 0.1M, 1 cm): ≤ 0.40Melting Point: 40 - 43°COxidized DTT: ≤ 0.3%DNase: Passes testRNase: Passes testProtease: Passes testApplication:•Used as a protective agent for SH groupsReference:1. Cleland,W. W. (1964) Biochemistry 3, 480-

482.Storage: -20°CCAS #3483-12-3

15397 1gm 5gm 25gm 100gm

Dithiothreitol(DTT; Cleland’s Reagent)

C4H

10O

2S

2

Formula Weight: 154.25PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 97%Identity: By IRMelting Point: ≥ 38°COxidized DTT: ≤ 1%Storage: -20°CCAS #3483-12-3

15395 1gm 5gm 25gm 100gm

Dithiothreitol (DTT), 0.1M Solution

ULTRAPUREMB GradeForm: 0.1M solution of DTT in high purity dH

2O.

Solution is 0.2 µm filtered and dispensed into vials.

Storage: -20°C

70726 150µl 1ml 5ml

DNA, Bacteriophage Lambda

DNA, Calf Thymus

DNA, E. coli

DNA, Fish Sperm

DNA, Fish Sperm, Activated

DNA-Cellulose, Double-Stranded(dsDNA-Cellulose)

DNA-Cellulose, Single-Stranded(ssDNA-Cellulose)

See Molecular Biology Products & Kits Section, page 92

DNA Sequencing Gel Mix, TBE

ULTRAPUREMB GradeForm: Dry, pre-weighed, sequencing gel mixes

with matched TBE Buffer. The gel is an Ultrapure powdered mixture which, when dissolved in the appropriate volume of water, will result in a solution containing the specified acrylamide percentage plus bis-acrylamide (19:1 ratio), 7M urea and TBE Buffer.

Contents: Each bottle of gel mix, when reconstituted, yields 125 ml of gel solution. This volume is enough for 1 - 2 standard sequencing gels.

Testing: Functionally tested in sequencing gel electrophoresis.

To use: To prepare gel, add 77 ml high purity dH

2O to the 6% mix and dissolve completely at

65°C. Filter solution. Add 1.25 ml 10% (w/v) ammonium persulfate and 30 µl TEMED. Mix gently. Pour and allow 30 min to polymerize.

Note: One bottle of powdered Ultrapure TBE Buffer is included with each gel mix bottle. Each bottle reconstitutes to make one liter of 1X running buffer. Use with corresponding TBE Running Buffer, PN 70454.

72990 5bottles

DNA Solutions Kit

ULTRAPUREMB GradeForm: A selection of 8 Convenience Reagent

Solutions, 100 ml each. 0.5M EDTA, PN 15694 1M MgCl

2, PN 78641

5M NaCl, PN 75888 3M NaOAc, PN 75897 20% SDS, PN 75832 1X TE Buffer, PN 75893 1M Tris, pH 8.0, PN 22638 Water, Nuclease-Free, PN 71786

75910 1Kit

DNase ISource: Bovine pancreasForm: White crystalline powderActivity: >90,000 Dornase units/mg >2,500 Kunitz units/mgUnit Definition: One Kunitz unit causes an

increase in absorbance of 0.001 per min per ml at 260 nm at 25°C, pH 5, using the assay of Kunitz(1). One Kunitz unit = 35 Dornase units.

Reference:1. Kunitz (1950) J. Gen. Physiol. 33, 349-363.Storage: Store at 4°C.

14340 10mg 20mg 100mg

Dodecyl-β-D-Maltoside(Lauryl Maltoside)

ULTRAPUREC

24H

46O

11

Formula Weight: 510.62PRODUCT SPECIFICATIONSForm: White powderPurity (HPLC): ≥ 99%pH (1%, H

2O): 5 - 8

A (260 nm, 1%, H2O): ≤ 0.06

Application: •Non-ionic detergent used to solubilize

membrane proteinsStorage: -20°C

18223 500mg 1gm 5gm

Dodecyl Sulfate, Lithium SaltSee Lithium Dodecyl Sulfate, page 249

Biochemicals

Biochemicals


Dodecyl Sulfate, Sodium SaltSee Sodium Dodecyl Sulfate, page 286

N-Dodecyl Trimethylammonium Bromide(DTAB)

C15

H34

BrNFormula Weight: 308.34PRODUCT SPECIFICATIONSForm: White powderMelting Point: 239 - 247°C

18218 10gm 50gm 250gm

n-Dodecyl-N,N-Dimethyl-3-Ammonio-1-Propane-Sulfonate


DPNSee Nicotinamide Adenine Dinucleotide, page 262

DTABSee N-Dodecyl Trimethylammonium Bromide,

page 223

DTESee Dithioerythritol, page 221

DTTSee Dithiothreitol, page 222

Dulcitol(Galactitol)

C6H

14O

6


15440 25gm 100gm 500gm

EDTASee Ethylenediamine Tetraacetic Acid, page 225

Egg SolidWhole Egg, spray dried

15455 1lb 5lb 25lb

Egg WhiteSee Albumin-Egg, page 188

EGTASee Ethylene Glycol-o-o'-bis (2-aminoethyl)-

N,N,N',N',-Tetraacetic Acid, page 225

Elastase

ULTRAPURE(E.C.3.4.21.36)Source: Porcine PancreasPRODUCT SPECIFICATIONSForm: Aqueous suspension with 0.01% NaN

3

Activity: 60 to 80 units/mg proteinUnit Definition: One unit solubilizes 1 mg of

elastin/20 min at 37°C, pH 8.8.Storage: 4°C

15470 25mg 50mg 100mg

Elastase(E.C.3.4.21.11)Source: Porcine PancreasForm: Lyophilized, salt free powderUnit Definition: One unit solubilizes 1 mg of

elastin/20 min at 37°C, pH 8.8.Storage: 4°CCAS #9004-06-2

15475 5mg 10mg 20mg 100mg

Ellman’s ReagentSee 5,5'-Dithio-bis- (2-Nitrobenzoic) Acid,

page 221

Enolase(E.C.4.2.1.11)Source: YeastPRODUCT SPECIFICATIONSForm: 50% glycerol solutionSpecific Activity: ≥ 40 units/mg proteinContaminating Activities: Phosphoglyceromutase: ≤ 0.02% Pyruvate Kinase: ≤ 0.02%Glycerol: 50%K-PO

4: 0.1M ± 0.05M

pH: 7.0Unit Definition: One unit oxidizes 1 µmol of

NADH/min at 25°C, pH 7.5.Storage: -20°C

15515 10,000units

ErgocalciferolUSBioAnalyzedC

28H

44O

Formula Weight: 396.65PRODUCT SPECIFICATIONSForm: White to light yellow powderIdentification (A, B, C, D,): Passes testAssay: 97.0 - 103.0% (as is)[α]25

D : +103° to +106° (c= 1.5 in EtOH)

Melting Range: 115 - 119°CReducing Substances: Passes testResidual Solvents: Meets requirementsStorage: 4°C, protected from light sealed under

nitrogen

15562 2gm 5gm 25gm 100gm

ErgosterolC

28H

44O

Formula Weight: 396.65Storage: 4°C, in tightly closed containersCAS #57-87-4

15565 5gm 10gm 25gm 100gm

Bioc

hem

ical

sBiochemicals

60 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Erythromycin, Free BaseC

37H

67NO

13

Formula Weight: 733.93PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderActivity: ≥ 850 µg of C

37H

67NO

13/mg (dry basis)

≥ 765 µg of C37

H67

NO13

/mg (as is)Identity: By IR[α]25

D : -71° to -78° (c=2 in EtOH)

pH (40 mg/ml, 1:19/MeOH:H2O): 8.0 - 10.5

Moisture (KF): ≤ 10.0%Storage: Ambient in tight containersCAS #114-07-8

15881 5gm 25gm

EsculinC

15H

16O

9

Formula Weight: 340.28 (anhydrous)PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: 97.5 - 102.5%Identity: By IR[α]20

D : -84° to -87° (c=2 in Dioxane:H

2O/1:1)

Moisture (KF): 6.5 - 8.0%CAS #66778-17-4

15590 5gm 25gm 100gm

β-EstradiolUSBioAnalyzedC

18H

24O

2

Formula Weight: 272.38PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: 97.0 - 103.0% (dry basis)Identity A: By IRIdentity B (by UV): Passes test[α]25

D : +76° to +83°, dry basis (c=1 in Dioxane)

Melting Point: 173 - 179°CMoisture (KF): ≤ 3.5%Chromatographic Purity: Passes testStorage: Hygroscopic. Protect from moistureCAS #50-28-2

15600 1gm 5gm

17- -Estradiol-3-BenzoateC

25H

28O

3

Formula Weight: 376.49PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98%Identity: By IRMelting Point: 190 - 201°C[α]25

D : +57° to 63° (c=1, Dioxane)

CAS #50-50-0

15611 250mg 1gm 5gm

EstriolC

18H

24O

3


15615 100mg 500mg 1gm

Estrone(1,3,5-Estratriene-3-ol-17-one)

C18

H22

O2

Formula Weight: 270.37PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: 97.0 - 103.0% (dry basis)Identity: By IR[α]20

D : +158° to +165° (c=1, Dioxane)

Loss on Drying: ≤ 5.0%Residue on Ignition: ≤ 0.5%CAS #53-16-7

15625 1gm 5gm 100gm

Ethanolamine, HydrochlorideH

2NCH

2CH

2OH•HCl

Formula Weight: 97.54PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0%Identity: By IRCAS #2002-24-6

15630 50gm 100gm

Ethidium Bromide

ULTRAPUREC

21H

20BrN

3

Formula Weight.: 394.31PRODUCT SPECIFICATIONSForm: Purple/maroon crystalline powderAssay: ≥ 98% (dry basis)Loss on Drying: ≤ 10%Residue on Ignition: ≤ 0.2%Ammonium Bromide: ≤ 0.1%Applications:•A fluorescent dye that binds to DNA by

intercalating between the bases, causing the double helix to unwind

•Used to detect both single-and double-stranded DNA and RNA

•Used in DNA isolation procedures and in gel electrophoresis

Stock Solution: 10 mg/ml 100 mg Ethidium Bromide 10 ml H

2O

Filter and store solution protected from light.Working Concentration: 0.5 µg/ml for gel

staining.Note: The electrophoretic mobility of linear

double-stranded DNA is reduced by 15% in the presence of ethidium bromide.

CAS #1239-45-8

32813 1gm 5gm 25gm

Ethidium Bromide Drops

ULTRAPUREForm: Ethidium bromide is supplied in a

convenient, ready-to-dispense dropper format for gel electrophoresis applications. One drop contains 40 µl or 25 µg of ethidium bromide.

Concentration: 0.625 mg/ml in water.Testing: Functionally tested for use in gel

electrophoresis.To Use: Simply add one drop for every 50 ml

of agarose and/or buffer for a working concentration of 0.5 µg/ml.

75816 5ml

DL-EthionineC

6H

13NO

2S


15640 5gm 25gm

Biochemicals

Biochemicals


Ethylenediaminetetraacetic Acid, (EDTA), 0.5M Solution

ULTRAPUREMB GradeForm: 0.5M solution of EDTA•Na

2 in high purity

dH2O, pH 8.0. Solution is 0.2 µm filtered

and dispensed into durable, square Nalgene bottles.

pH: 8.0 ± 0.1Contaminant Testing:

DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test

Application: •Chelating agent used in many enzyme buffers

and, at higher concentrations, as an enzyme inactivator

15694 100ml 500ml

Ethylenediaminetetraacetic Acid, (EDTA) Disodium Salt, Dihydrate

ULTRAPUREMB GradeC

10H

14N

2Na

2O

8•2H

2O

Formula Weight: 372.24PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 101.0%A (260 nm, 0.1M, 1 cm): ≤ 0.2A (280 nm, 0.1M, 1 cm): ≤ 0.05Insoluble Matter: ≤ 0.005%pH (5%, H

2O): 4.0 - 6.0

Nitrotriacetic Acid: ≤ 0.1%Heavy Metals (Pb): < 0.005%Iron (Fe): ≤ 0.01%Arsenic (As): ≤ 1 ppmCalcium (Ca): Passes testSolubility (0.1M, H

2O): Completely clear and

colorlessContaminant Testing:

DNase (endo): Passes test DNase (exo): Passes test RNase: Passes testApplication: •Chelating agent used in many enzyme buffers

and as an enzyme inactivator at high concentrations

Stock Solution (0.5M): 186.1 gm EDTA H

2O to 800 ml

Titrate with approximately 20 gm of NaOH pellets to pH 8.0. Bring solution to 1 liter with water and sterilize by autoclaving.

CAS #6381-92-6

15701 100gm 500gm 1kg


ACS Reagent GradeC

10H

14N

2O

8Na

2•2H

2O


2O, 25°C): 4.0 - 6.0

Insoluble Matter: ≤ 0.005%Nitrilotriacetic Acid: ≤ 0.1%Heavy Metals (Pb): ≤ 0.005%Iron (Fe): ≤ 0.01%A (260 nm, 0.1M, 1 cm): ≤ 0.2A (280 nm, 0.1M, 1 cm): ≤ 0.05Solubility: (0.1M, H


CAS #6381-92-6

15699 100gm 500gm 1kg 5kg


C10

H14

N2O

8Na

2•2H

2O

Formula Weight: 372.24PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 101.0% (as disodium dihydrate)Identity: By IRSolubility (5%, H

2O): Clear, colorless to slightly

yellowpH (5%, H

2O): 4.0 - 6.0

pH (1%, H2O): 4.0 - 6.0

Note: This product is a general quality laboratory chelating reagent suitable for most educational purposes. 0.1M stock solutions of this grade may be pale yellow in color. For demanding research applications and for use with sensitive reagents, USB recommends Ultrapure Grade (PN 15701) or ACS Reagent Grade EDTA (PN 15699).

CAS #6381-92-6

15697 100gm 500gm 1kg

Ethylene Diamine Tetraacetic Acid, (EDTA) Tetrasodium Salt, Dihydrate

ULTRAPUREC

10H

12N

2O

8Na

4•2H

2O

Formula Weight: 416.20 (dihydrate)PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 101.0% (as is)Identity: By IRpH (1%, H

2O): 10.7 - 11.7

pH (5%, H2O): 10.7 - 12.0

CAS #10378-23-1

15700 500gm 1kg

Ethylene Glycol-O,O'-Bis (2 Amino-ethyl)-N,N,N',N',-Tetraacetic Acid (EGTA)

ULTRAPUREC

14H

24N

2O

10

Formula Weight: 380.35PRODUCT SPECIFICATIONSForm: White to slightly off-white powderAssay: ≥ 99%Spectral Ratios (280 nm, 0.1M in 1N NaOH, 1

cm): ≤ 0.10Identity: By IRLoss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Chloride (Cl): ≤ 0.005%Sulfate (SO

4): ≤ 0.02%

Cadmium (Cd): ≤ 5 ppmCobalt (Co): ≤ 5 ppmCopper (Cu): ≤ 5 ppmIron (Fe): ≤ 5 ppmLead (Pb): ≤ 5 ppmNickel (Ni): ≤ 5 ppmZinc (Zn): ≤ 5 ppmApplication: •Chelating agent useful in the determination of

calcium in the presence of magnesiumReference:1. Schmid, R. W. and Reilley, C. N. (1957) Anal.

Chem. 29, 264-268.CAS #67-42-5

15703 10gm 50gm 100gm

Bioc

hem

ical

sBiochemicals

6� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

N-EthylmaleimideC

6H

7NO

2


15685 5gm 10gm 25gm 100gm

Fast Green FCF


37H

34N

2Na

2O

10S

3

Formula Weight: 808.85Applications:•Stain for collagen, muscle, cytoplasm and

connective tissue.(1) Also a protein stain useful in the quantitative evaluation of electrophoretic separations on polyacrylamide gels.(2,3)

•Particularly useful in isoelectric focusing since it does not bind to ampholytes.(4)

References:1. Lillie, R. D., (1940) Stain Technol., 15, 17-22.2. Wilson, C. M., (1979) Anal. Biochem., 96, 263-

278.3. Bartolini, M. B. et al., (1976) Anal. Biochem.,

71, 6-13.4. Allen, R. E., et al., (1980) Anal. Biochem., 104,

494-498.CAS #2353-45-9

32814 10gm 25gm 100gm

Ferric Ammonium Citrate, Brown(FCC Brown)

Description: A complex salt of undetermined structure, composed of iron, ammonia, and citric acid.

PRODUCT SPECIFICATIONSForm: Brown to reddish-brown crystalline powder

or brownish-yellow powderIdentification: Passes testSolubility (1%, H

2O): Passes test

15749 100gm 500gm

Ferric Ammonium Citrate, GreenCP GradeFormula: A complex salt of undetermined,

structure composed of iron, ammonia and citric acid.

PRODUCT SPECIFICATIONSForm: Green powderAssay: 14.5% - 16.0% FeIdentity (A, B, C): Passes testFerric Citrate: Passes testLead (Pb): ≤ 10 ppmMercury : ≤ 1 ppmOxalate: Passes testSulfate: ≤ 0.3%

15751 100gm 500gm

Ferric Chloride, HexahydrateACS Reagent GradeLump form, very hygroscopicFeCl

3•6H

2O

Formula Weight: 270.30PRODUCT SPECIFICATIONSForm: Brownish-yellow to orange lumpsAssay: 97.0 - 102.0%Insoluble Matter: ≤ 0.01%Nitrate (NO

3): ≤ 0.01%

Phosphorus Compounds (PO4): ≤ 0.01%


Copper (Cu): ≤ 0.003%Zinc (Zn): ≤ 0.003%Ferrous Iron (Fe++): ≤ 0.002%Substances not precipitated by ammonium

hydroxide (SO4): ≤ 0.1%

12192 500gm 2.5kg

Ferrous Sulfate, HeptahydrateACS Reagent GradeFeSO

4•7H

2O

Formula Weight: 278.01PRODUCT SPECIFICATIONSForm: Blue-green crystalline powderAssay: ≥ 99.0%Insoluble Matter: ≤ 0.01%Chloride (Cl): ≤ 0.001%Phosphate (PO

4): ≤ 0.001%

Copper (Cu): ≤ 0.005%Manganese (Mn): ≤ 0.05%Zinc (Zn): ≤ 0.005%Ferric Iron (Fe3+): ≤ 0.1%Substances not precipitated by ammonium

hydroxide (SO4): ≤ 0.05%

12193 500gm 2.5kg

Fetal Bovine Serum Cell Culture GradePRODUCT SPECIFICATIONSForm: Clear straw to amber liquidTotal Protein: 3.0 - 4.0 gm/dlHemoglobin: 20 mg/dlpH: 6.7 - 8.0Endotoxin: 10 EU/mlSterility: SterileMycoplasma: None detectedVirally tested and found negative for BVD, IBR,

and PI3.Storage: -20°C

15801 500ml

Fetal Bovine Serum (FBS)Cell Culture GradePRODUCT SPECIFICATIONSForm: Clear straw to amber liquidTotal Protein: 3.0 - 4.0 gm/dlHemoglobin: ≤ 20 mg/dlpH: 6.7 - 8.0Endotoxin: ≤ 10 EU/mlSterility: SterileMycoplasma: None detectedVirally tested and found negative for BVD, IBR,

and PI3. USB Fetal Bovine Serum is an excellent

supplement to culture media.Storage: -20°C

15762 500mI

FibrinogenSource: Bovine BloodPlasminogen FreeStorage: 4°CCAS #9001-32-5

15769

FibrinogenSource: Bovine Blood90% ClottableStorage: 4°CCAS #9001-32-5

15768 1gm 5gm

Biochemicals

Biochemicals


FibrinogenSource: Human Blood65% ClottablePRODUCT SPECIFICATIONSForm: Lyophilized powderProtein: ≥ 60%Clottable Protein: ≥ 60%Storage: -20°CCAS #9001-32-5

15774 1gm

Fish OilSource: MenhadenCAS #8002-50-4

34568 1qt 12qt

Flavin Adenine Dinucleotide, Disodium Salt, Hydrate(FAD)

C27

H31

N9O

15P

2Na

2

Formula Weight: 829.51 (anhydrous) 883.56 (trihydrate)PRODUCT SPECIFICATIONSForm: Orange-yellow crystalline powderAssay (UV, 450 nm, pH 7.0): ≥ 95.0% (dry basis,

disodium salt)Moisture (KF): ≤ 8.0%Note: This product contains a varying amount

of moisture ranging from a dihydrate to a tetrahydrate at the time of packaging.

Storage: 4°C, protect from light, dessicate.CAS #84366-81-4

15785 100mg 250mg 500mg 1gm

Flavin MononucleotideSee Riboflavin-5-Phosphate, page 283

FluorescamineC

17H

10O

4


15802 100mg

5-FluorouracilC

4H

3FN

2O

2

Formula Weight: 130.08PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (titrimetric): 98.5 - 101.0%Loss on Drying: ≤ 0.5%CAS #51-21-8

15875 250mg 1gm 5gm

Folic Acid(Pteroylglutamic Acid)

USBioAnalyzedC

19H

19N

7O

6

Formula Weight: 441.40PRODUCT SPECIFICATIONSForm: Yellow to yellow-orange crystalline powderAssay: 97.0 - 102.0% (dry basis)Chromatographic Purity: Passes testIdentity: Passes testMoisture (KF): ≤ 8.5%Residue on Ignition: ≤ 0.3%O.V.I.: Meets requirementsCAS #59-30-3

15880 10gm 25gm 100gm 1kg

Formamide

ULTRAPURELow ConductivityHCONH

2

Formula Weight: 45.04Form: Clear, colorless liquidPRODUCT SPECIFICATIONSAssay: ≥ 99%Refractive Index (20°C): 1.447 ± 0.001Density (20°C): 1.133 ± 0.001A (280 nm, 100%, 1 cm): ≤ 0.15A (260 nm, 100%, 1 cm): ≤ 2.3pH (50% v/v with H

2O): 6.0 - 8.0

Freezing Point: 2.0 - 3.0°CConductivity: ≤ 100 µmhos/cmCopper (Cu): ≤ 0.2 ppmIron (Fe): ≤ 1 ppmLead (Pb): ≤ 1 ppmZinc (Zn): ≤ 1 ppmStorage: 4°CApplications:•For use in nucleic acid hybridization buffers,

specialized sequencing gels and a variety of other molecular biology applications to reduce the T

m of nucleic acid hybrids

•Used to achieve stronger denaturing conditions in a sequencing gel along with 7-deaza-dGTP to resolve sequencing gel compressions

To prepare a formamide sequencing gel: Place 40 ml Formamide in a beaker with

magnetic stir bar. Acrylamide 7.6 gm N-N'-Methylene-bis-Acrylamide 0.4 gm Urea 42.0 gm 10X TBE Buffer 10 ml1. Cover with parafilm and warm in a 65°C water

bath with stirring until dissolved. This takes 30-60 minutes and the mixture reaches a temperature of about 50°C.

2. When completely dissolved, add water to a total volume of 100 ml.

3. Cover and continue stirring at room temperature until it reaches < 30°C.

4. Vacuum filter with a nitrocellulose filter.5. Add 1 ml of 10% ammonium persulfate and

0.15 ml of TEMED. Pour immediately. (Pouring this viscous mixture requires nearly a vertical angle for the glass plates.) The gel should be polymerized within 30 minutes.

Formamide gels should be run at the same power (wattage) as regular gels. This requires a higher voltage (60% higher) than normal gels, and DNA migrates about half as fast.

Soaking the gel in 5% acetic acid, 20% methanol helps prevent swelling. Soak 15 min for a 0.4 mm thick gel and dry normally.

Compression artifacts are caused whenever stable secondary structures exist in the DNA under the conditions prevailing in the gel matrix during electrophoresis.

The folded structure runs faster through the gel matrix than equivalent unfolded DNA, catching up with the smaller DNA in the sequence. Currently, gel compression artifacts are eliminated in one of two ways. One is to change to a stronger denaturing condition, adding formamide as shown here, and the other is to use an analog of dGTP (dITP or 7-deaza-dGTP) during synthesis.

Formamide Hybridization Buffer: 50% Formamide, 5X SSC, 0.5% SDS, 5X

Denhardt’s Solution, 100 µg/ml sonicated fish sperm DNA

Reagent Amount for every 100 ml Formamide* 50 ml 20X SSC* 25 ml 20% SDS* 2.5 ml 50X Denhardt’s Solution* 10 ml 10 mg/ml fish DNA 1.0 ml Water* up to 100 ml*Denotes Ultrapure Reagent available from USB.References:1. Sarkar, G., Kapelner, S. and Sommer, S. S.

(1990) Nucl. Acids Res. 18, 7465.2. Sambrook, J., Fritsch, E. F. and Maniatis, T.

(1989) Molecular Cloning, 2nd Edition, Cold Spring Harbor Laboratory.

CAS #75-12-7

75828 500gm 1kg

Bioc

hem

ical

sBiochemicals

6� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

-D-Fructose(β-D-Levulose)

C6H

12O

6

Formula Weight: 180.16PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 100 ± 2% (dry basis)Identity: By IRLoss on Drying: ≤ 0.5%Glucose: ≤ 0.5%Hydroxymethylfurfural: ≤ 0.1%Residue on Ignition: ≤ 0.5%Chloride (Cl): ≤ 0.018%Sulfate (SO

4): ≤ 0.025%

Arsenic (As): ≤ 1 ppmHeavy Metals (Pb): ≤ 5 ppmCAS #57-48-7

18425 500gm 1kg 10kg

D-Fructose-6-Phosphate, Disodium Salt

C6H

11Na

2O

9P

Formula Weight: 304.10 (anhydrous) 322.11 (monohydrate)Practically free of Fructose-1,6-DiphosphateStorage: -20°CCAS #26177-86-6

15929 500mg 1gm 5gm

α-L-(–)-Fucose(6-Deoxy-L-Galactose)

C6H

12O

5


15960 1gm 5gm 25gm 100gm

D-(+)-Fucose(6-Deoxy-D-Galactose)

C6H

12O

5


15955 1gm 5gm 25gm

Fumaric Acid, Free AcidHOOC(CH)

2COOH


15970 1kg

G-418 Sulfate(Geneticin®, Antibiotic G-418)

ULTRAPUREC

20H

40N

4O

10•2H

2SO

4

Formula Weight: 692.71Storage: 4°C

11379 100mg 500mg 1gm 5gm

α-D-Galactose-1-Phosphate, Dipotassium Salt, Pentahydrate

C6H

11O

9PK

2•5H

2O

Formula Weight: 426.39 (pentahydrate)PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 99.0%Identity: By IRMoisture (KF): ≤ 23.0%[α]20

D : +81.5° ± 1.5° (c=2, H

2O, as

pentahydrate)[α]20

D : +103.3° ± 4.5° (c=2, H

2O, dry basis)

Storage: -20°C

16014 250mg 1gm 5gm

D-(+)-GalactoseC

6H

12O

6

Formula Weight: 180.16PRODUCT SPECIFICATIONSForm: White to off-white powderIdentity: By IR[α]20

D : ≥ +77° (c=4 in H

2O and NH

3)

Loss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.5%Glucose: ≤ 2.0%CAS #59-23-4

15995 100gm 500gm 1kg 5kg

D-(+)-GalactoseHigh Purity GradeC

6H

12O

6

Formula Weight: 180.16PRODUCT SPECIFICATIONSForm: White powderAssay (HPLC): ≥ 98% (by HPLC)Identity: By IR[α]20

D : +80.0° ± 0.5° (c=5 in H

2O and NH

3)

Solubility: Clear and colorlessLoss on Drying: ≤ 0.1%Residue on Ignition: ≤ 0.05%Arsenic (As): ≤ 0.5 ppmIron (Fe): ≤ 5 ppmHeavy Metals (Pb): ≤ 10 ppmGlucose: ≤ 0.1%CAS #59-23-4

15996 100gm 500gm 1kg 5kg

GDPSee Guanosine-5'-Diphosphate, page 237

Gel Electrophoresis ReagentsEthidium Bromide Drops, page 224Glycerol Tolerant Gel (GTG) Buffer, 20X Solution,

page 234RapidRun Agarose Buffer, 20X Solution, page 282TAE Buffer, 10X Solution, page 293TAE Buffer, 50X Solution, page 293TBE Buffer, 5X Solution, page 294TBE Buffer, 10X Ready-Mixed Powder, page 294Tris-Glycine (TG) Buffer, 10X Solution, page 301Tris-Glycine-SDS (TGS) Buffer, 10X Solution,

page 301

Gel Mixes and SolutionsDNA Sequencing Gel Mix, TBE Buffer, 6%,

page 222Glycerol Tolerant Gel (GTG) Buffer, 20X Solution,


Mixed Powder, page 234RapidGel™ 40% Liquid Acrylamide Stock

Solution, page 281RapidGel DNA Sequencing Gel Solution, TBE



Buffer, 8%, page 281RapidGel-XL 6% DNA Sequencing Gel Solution,

page 282RapidGel-XL 40% Liquid Acrylamide Stock

Solution, page 282Stop Solution, page 291

Biochemicals

Biochemicals


GelatinSource: Porcine SkinBloom 175We recommend this grade for most applications.CAS #9000-70-8

16045 1lb 5lb 25lb 100lb

GelatinSource: Porcine SkinBloom 300CAS #9000-70-8

16047 1lb 5lb 25lb 100lb

Gelatin

ULTRAPURESource: Porcine SkinPRODUCT SPECIFICATIONSAppearance: Pale yellow powderpH (1%, H

2O, slurry): 4.0 - 6.0

Moisture (KF): ≤ 12%Residue on Ignition: ≤ 2%Viscosity (6.66% at 60°C): 30.0 mpsMesh Size: 30 - 50Microbiological Testing: Aerobic Plate Count/gram: ≤ 200 cfu/gm Coliform/gram: ≤ 10 Yeast and Mold/gram: ≤ 10 S. aureus : Negative P. aeuruginosa : Negative Salmonella/10 grams: NegativeFunctionally tested in Polymerase Chain ReactionApplications:•Enzyme stabilizer•Used in buffers for dilution and storage of

bacteriophage stocks (SM buffer)CAS #9000-70-8

70086 100gm

Gelatin HydrolysateSource: EnzymaticPRODUCT SPECIFICATIONSForm: Tan to yellowish powderpH: 7.0 ± 0.2Moisture: Approx. 5%Residue on Ignition: ≤ 5%Microbiological Testing: Aerobic Plate Count cfu/gm: ≤ 5000 Coliform cfu/gm: ≤ 10 Yeast & Mold cfu/gm: ≤ 100

16024 1lb 5lb 25lb

Geneticin® DisulfateSee G-418 Sulfate, page 228

Gentamicin SulfateUSBioAnalyzedPRODUCT SPECIFICATIONSForm: White to buff-colored powderActivity: ≥ 590 µg of gentamicin/mg (dry basis) ≥ 484 µg of gentamicin/mg (as is)Identity (A, B): Passes testspH (4%, H

2O): 3.5 - 5.5

[α]25D : +107° to +121° (c=1 in H

2O)

Loss on Drying: ≤ 18.0%Residue on Ignition: ≤ 1.0%Gentamycin’s content: C

1: 25 - 50%

C2 + C

2a: 25 - 55%

C1a

: 10 - 35%Limit of Methanol: ≤ 1.0%Mode of Action:•Bactericidal, inhibits normal protein synthesis.Applications:•Very stable•Autoclavable•Requires no refrigeration•Effective when combined with an antibiotic that

interferes with cell wall synthesis.CAS #1405-41-0

16051 250mg 1gm 5gm 25gm

Gentian VioletSee Methyl Violet, page 258

β-GentiobioseC

12H

22O

11


16055 250mg 500mg 1gm

Gibberellic Acid, Potassium SaltContent: 75% (balance is monopotassium

phosphate)

16068 1gm 5gm

Gibberellic Acid, Potassium SaltContent: 10% (balance is monopotassium

phosphate)

16065 1gm 5gm 10gm

Gibberellin A3

C19

H22

O6

Formula Weight: 346.37PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: ≥ 900 mcg/mgLoss on Drying: ≤ 3%CAS #77-06-5

16069 1gm 10gm

γ-Globulins, Fraction IISource: Bovine BloodStorage: 4°CCAS #68476-36-8

16021 1gm 5gm 10gm 25gm

Bioc

hem

ical

sBiochemicals

66 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

-GlobulinsSource: Rabbit BloodDescription: Rabbit gamma globulin is purified

from rabbit plasma or serum.Purity: ≥ 95%Immunoelectrophoresis (IEP): Passes testStorage: 4°CCAS #68476-36-8

16103 500mg 1gm

GlucanSource: Barley GumThis material contains β-1,3 and β-1,

4-glucosidic linkages and is an important substrate for enzyme assays.

CAS #9041-22-9

16102 50mg 100mg 500mg 1gm 5gm

D-(+)-Glucosamine, HydrochlorideC

6H

13NO

5•HCl


D : +72.5° ± 1.5° (c=4, H

2O, 3 hr)


16110 100gm 500gm 1kg

α-D-(+)-GlucoseSee Dextrose, page 219

Glucose Dehydrogenase(E.C.1.1.1.47)Source: Bacillus megateriumForm: Lyophilized powderUnit Definition: One unit oxidizes 1 µmol of

D-Glucose/min at 37°C.Storage: 4°CCAS #9028-53-9

16144 500units 1,000units 5,000units 10,000units

Glucose Oxidase(E.C.1.1.3.4)Source: Aspergillus nigerForm: 0.1M Sodium Acetate solutionActivity: Approx. 260 units/mg proteinProtein Concentration: Approx. 20 mg protein/mlContaminating Activities: Amylase: ≤ 0.05% Saccharase: ≤ 0.05% Maltase: ≤ 0.05%Unit Definition: One unit oxidizes 1 µmol of

glucose/min at 25°C, pH 7.0.Storage: 4°C

16146 50,000units 250,000units 1mu

β-D-Glucose PentaacetateC

16H

22O

11

Formula Weight: 390.34PRODUCT SPECIFICATIONSForm: White powder[α]25

D : +4.0° ± 1.0° (c=2.5 to 4.0 in Chloroform)

Melting Point: 130 - 133°CLoss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Heavy Metals (as Pb): ≤ 10 ppmIron: ≤ 5 ppmArsenic: ≤ 0.5 ppm

16150 100gm 500gm 1kg

α-D-Glucose-1-Phosphate, Disodium Salt, Tetrahydrate

C6H

11Na

2O

9P•4H

2O

Formula Weight: 376.16PRODUCT SPECIFICATIONSForm: White powderAssay (enzymatic): ≥ 95.0%Identity: By IRMoisture (KF): ≤ 20.0%CAS #56401-20-8

16165 5gm 25gm

D-Glucose-6-Phosphate, Barium Salt, Heptahydrate

C6H

11BaO

9P•7H

2O


16170 5gm 10gm

D-Glucose-6-Phosphate, Dipotassium Salt

Formula: C6 H

11O

9 PK

2


16180 1gm 5gm 10gm 25gm

D-Glucose-6-Phosphate, Disodium Salt, Dihydrate

C6H

11Na

2O

9P•2H

2O

Formula Weight: 340.13 (dihydrate)PRODUCT SPECIFICATIONSForm: White powderAssay (enzymatic): ≥ 95%Storage: -20°C, protect from moisture.CAS #3671-99-6

16185 1gm 5gm 10gm

Glucose-6-Phosphate Dehydrogenase(E.C.1.1.1.49)Source: Leuconostoc mesenteroidesPRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: ≥ 400 NAD units/mg protein ≥ 80 NAD units/mg powder ≥ 222 NADP units/mg protein Protein: ≥ 10%Na-Citrate: ≥ 10%KPO

4 ≥ 5%

Contaminating Activities: Hexokinase: ≤ 0.01% Phosophoglucose Isomerase: ≤ 0.005% Phosphogluconate Dehydrogenase: ≤ 0.001% Creatine Kinase: ≤ 0.001% Glutathione Reductase: ≤ 0.001% Phosphoglucomutase: ≤ 0.001% Myokinase: ≤ 0.001% Lactate Dehydrogenase: ≤ 0.01%Note: The above product is available in

manufacturing quantities as a lyophilized powder or an ammonium sulfate suspension. Please inquire for bulk pricing.

Storage: -20°C, protect from moistureCAS #9001-40-5

16193 500units 5,000units 10,000units

Biochemicals

Biochemicals


Glucose-6-Phosphate Dehydrogenase(E.C.1.1.1.49)Source: Leuconostoc mesenteroidesPRODUCT SPECIFICATIONSForm: Ammonium sulfate suspensionActivity: ≥ 700 units/mg protein (NAD units)Activity: ≥ 220 units/mg protein (NADP units)Protein Concentration: ≥ 8 mg/mlUnit Definition: One NAD unit reduces 1 µmol

NAD/min at 30°C, pH 7.8.Contaminating Activities: Hexokinase: ≤ 0.01% Phosphoglucose Isomerase: ≤ 0.005% Phosphogluconate Dehydrogenase: ≤ 0.001% Creatine Kinase: ≤ 0.001% Glutathione Reductase: ≤ 0.001% Phosphoglucomutase: ≤ 0.001% Myokinase: ≤ 0.001% Lactate Dehydrogenase: ≤ 0.01%Note: The above product is available in


Storage: 4°C

16171 1,000units 5,000units 10,000units

Glucose-6-Phosphate Dehydrogenase(E.C.1.1.1.49)Source: YeastPRODUCT SPECIFICATIONSForm: Ammonium sulfate suspensionActivity: ≥ 250 units/mg proteinUnit Definition: One unit reduces 1 µmol NADP/

min at 25°C, pH 7.8.Contaminating Activities: Glutathione Reductase: ≤ 0.2% Hexokinase: ≤ 0.02% Phosphogluconate Dehydrogenase: ≤ 0.01% Glucosephosphate Isomerase: ≤ 0.01% Phosphoglucomutase: ≤ 0.01% Creatine Kinase: ≤ 0.001% Myokinase: ≤ 0.01% ATPase: ≤ 0.001%Note: The above product is available in


Storage: 4°C


Glucose-6-Phosphate Dehydrogenase(E.C.1.1.1.49)Source: YeastPRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: ≥ 250 units/mg proteinUnit Definition: One unit reduces 1 µmol NADP/

min at 25°C, pH 7.8.Contaminating Activities: Glutathione Reductase: ≤ 0.2% Hexokinase: ≤ 0.02% Phosphogluconate Dehydrogenase: ≤ 0.01% Glucosephosphate Isomerase: ≤ 0.01% Phosphoglucomutase: ≤ 0.01% Creatine Kinase: ≤ 0.001% Myokinase: ≤ 0.01% ATPase: ≤ 0.001%Note: The above product is available in


Storage: -20°CCAS #9001-40-5


α-D-Glucosidase(Maltase)

(E.C.3.2.1.20)Source: S. cerevisiaePRODUCT SPECIFICATIONSForm: Lyophilized, ammonium sulfate free powderSpecific Activity: ≥ 50 units/mg proteinProtein: 20-80%KPO

4: 5-35%

BSA: 10-50%Contaminating Activities: α-Galactosidase: ≤ 0.01% β-Galactosidase: ≤ 0.01% β-Glucosidase: ≤ 0.01%Note: The above product is available in


Storage: -20°CCAS #9001-42-7


Glucuronolactone(D-Glucuronic Acid, Lactone)

C6H

8O

6


16195 50gm 100gm 1kg

Glutamate Dehydrogenase(E.C.1.4.1.3)Source: Bovine LiverPRODUCT SPECIFICATIONSForm: Lyophilized, chromatographically purifiedUnit Definition: One unit catalyzes the oxidation

of 1 µmol of NADH/min at 37°C under assay conditions not containing ADP.

Storage: -20°C

16250 100mg 500mg 1gm

Glutamate DehydrogenaseNADP Specific(E.C.1.4.1.4)Source: YeastPRODUCT SPECIFICATIONSForm: Lyophilized ammonium sulfate free powderActivity: ≥ 10 units/mgUnit Definition: One unit catalyzes the

transformation of 1 µmol of L-glutamate/min at 25°C, pH 9.0.

Note: The above product is available in manufacturing quantities as a lyophilized powder or a glycerol solution. Please inquire for bulk pricing.

Storage: -20°CCAS #9001-46-1


D-Glutamic Acid(D-α-Aminoglutaric Acid)

HOOCCH2CH

2CH(NH

2)COOH


16205 5gm 25gm 100gm

Bioc

hem

ical

sBiochemicals

68 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

DL-Glutamic Acid, Monohydrate(DL-α-Aminoglutaric Acid)

NH2CH(COOH)CH

2CH

2COOH•H

2O

Formula Weight: 165.14 (monohydrate)PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (monohydrate)Identity: By IRMoisture (KF): 10-12%Loss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.2%Heavy Metals (Pb): ≤ 10 ppmArsenic (As

2O

3): ≤ 2 ppm

Chloride (Cl): ≤ 0.07%CAS #19285-83-7

16210 25gm 100gm 1kg

L-Glutamic Acid(L-α-Aminoglutaric Acid)

HOOCCH2CH

2CH(NH

2)COOH


D : +31.2° to +32.2° (c=10 in 2N HCl)

Loss on Drying: ≤ 0.1%Heavy Metals (Pb): ≤ 20 ppmArsenic (As): ≤ 1.5 ppmLead (Pb): ≤ 10 ppmCAS #56-86-0

16215 500gm 1kg 5kg 25kg

L-Glutamic Acid, HydrochlorideNH

2CH(COOH)CH

2CH

2COOH•HCl


D : +25.2° to +25.8° (c=10 in 2N HCl)


16220 500gm 1kg 5kg

L-Glutamic Acid, Monosodium Salt, Monohydrate(Monosodium Glutamate)

USBioAnalyzedC

5H

8NNaO

4•H

2O

Formula Weight: 187.13PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 100.5%Identity: By IRIdentification (A, B, C,): Passes testsClarity and color of solution: Passes testpH (5%, H

2O): 6.7 - 7.2

[α]20D : +24.8° to +25.3° (c=10 in 2N HCl)

Loss on Drying (100°C, 5 hrs): ≤ 0.5%Heavy Metals (Pb): ≤ 20 ppmChloride (Cl): ≤ 0.25%Lead (Pb): ≤ 10 ppmResidual Solvents: Meets requirementsCAS #6106-04-3

16245 1kg 5kg

L-Glutamic Acid, Potassium SaltKOOCCH

2CH

2CH(NH

2)COOH•H

2O

Formula Weight: 203.23PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Identity: By IRpH (2% in H

2O): 6.7 - 7.3

[α]20D : +22.2° to +24.0° (c=10 in 2N HCl)

Loss on Drying: ≤ 0.1%Heavy Metals (Pb): ≤ 20 ppmArsenic (As): ≤ 3 ppmChloride (Cl): ≤ 0.1%CAS #6382-01-0

16240 100gm 500gm 1kg

D-GlutamineH

2NCOCH

2CH

2CH(NH

2)COOH


16270 1gm 5gm 10gm

L-Glutamine(L-α-Aminoglutamic Acid)

H2NCOCH

2CH

2CH(NH

2)COOH


D : +6.3° to +7.3° (c=4 in H

2O)

Loss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 10 ppmArsenic (As): ≤ 3 ppmChloride (Cl): ≤ 0.021%Iron (Fe): ≤ 10 ppmSulfate (SO

4): ≤ 0.028%

CAS #56-85-9

16285 25gm 100gm 250gm 500gm 1kg

Glutamyl Cysteinyl GlycineSee Glutathione, page 232

γ-L-Glutamyl-p-Nitroanilide, Free BaseC

11H

13N

3O

5•H

2O


16254 250mg 500mg 1gm 5gm 25gm

Glutathione-OxidizedC

20H

32O

12N

6S

2

Formula Weight: 612.63PRODUCT SPECIFICATIONSForm: White lyophilized powderAssay: ≥ 98%Identity: By IR[α]25

D : -98° to -106° (c=2 in H

2O)

Moisture (KF): ≤ 5%Heavy Metals (Pb): ≤ 10 ppmIron (Fe): ≤ 10 ppmStorage: 4°CCAS #27025-41-8

16320 250mg 500mg 1gm

Biochemicals

Biochemicals


Glutathione-Reduced(γ-L-Glutamyl-Cysteinyl Glycine)

C10

H17

O6N

3S

Formula Weight: 307.32PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98%Identity: By IR[α]20

D : -15° to -18° (c=2 in H

2O)

Loss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.2%Heavy Metals (Pb): ≤ 20 ppmArsenic (As): ≤ 2 ppmIron (Fe): ≤ 5 ppmCAS #70-18-8

16315 5gm 25gm 100gm

Glutathione Reductase(E.C.1.8.1.7)Source: YeastPRODUCT SPECIFICATIONSForm: 50% Glycerol solutionNote: The above product is available in


Storage: -20°C


GlutenSource: WheatCAS #8002-80-0

16300 5lb 25lb 100lb

DL-Glyceric Acid, Calcium Salt[HOCH

2CH(OH)COO]

2Ca•2H

2O


16345 5gm 10gm

GlycerinSee Glycerol, page 233

GlycerolACS Reagent GradeC

3H

5(OH)

3

Formula Weight: 92.09PRODUCT SPECIFICATIONSForm: Clear, colorless, viscous liquidAssay (by vol.): ≥ 99.5%Color (APHA): ≤ 10Residue on Ignition: ≤ 0.005%Neutrality: Passes testChlorinated Compounds (as CI): ≤ 0.003%Sulfate (SO

4): ≤ 0.001%

Acrolein and Glucose: Passes testFatty Acid Esters: ≤ 0.05%Substances Darkened by Sulfuric Acid: Passes

testHeavy Metals (Pb): ≤ 2 ppmWater (H

2O): ≤ 0.5%

16371 500ml 1L

Glycerol(Glycerin)

USBioAnalyzedC

3H

8O

3

Formula Weight: 92.09PRODUCT SPECIFICATIONSForm: Colorless liquidAssay: 99.0 - 101.0%Color: Passes testIdentity (A, B): Passes testsSpecific Gravity: ≥ 1.249Moisture (KF): ≤ 5.0%Residue on Ignition: ≤ 0.01%Chlorinated Compounds: ≤ 0.003%Fatty Acids & Esters: Passes testSulfate (SO

4): ≤ 0.002%

Heavy Metals (Pb): ≤ 5 ppmChloride (Cl): ≤ 0.001%Residual Solvents: Meets the requirementsLimit of Diethylene Glycol and Related

Compounds: Meets the requirementsCAS #56-81-5

16375 500gm 1kg 4kg

Glycerol

ULTRAPUREMB GradeHOCH

2CH(OH)CH

2OH

Formula Weight: 92.09PRODUCT SPECIFICATIONSForm: Clear, colorless, viscous liquidAssay: ≥ 99.5%Identity: By IRSpecific Gravity (25°C): ≥1.249A (260 nm, 100%, 1 cm): ≤ 0.06A (280 nm, 100%, 1 cm): ≤ 0.05Color (APHA): ≤ 10Neutrality: Passes testResidue on Ignition: ≤ 0.005%Moisture: ≤ 0.5%Acrolein, Glucose and Ammonium Compounds:

Passes testFatty Acid Esters: ≤ 0.2 meq/100 gmSilver Reducing Substances: Passes testReadily Carbonizable Substances: Passes testRefractive Index: 1.470-1.475Chlorinated Compounds: ≤ 0.003%Chloride (Cl): ≤ 0.001%Sulfate (SO

4): ≤ 0.002%

Arsenic (As): ≤ 1.5 ppmCalcium (Ca): ≤ 5 ppmIron (Fe): ≤ 5 ppmMagnesium (Mg): ≤ 1 ppmMercury (Hg): ≤ 10 ppmZinc (Zn): ≤ 2 ppmHeavy Metals (Pb): ≤ 2 ppmDNase (endo): Passes testDNase (exo): Passes testRNase: Passes testProtease: Passes testApplications:•Used for long-term storage of bacterial cultures•Step gradients for bacteriophage/particle

purification•Mammalian cell transfection•Storage buffers for enzymesTypical storage for bacterial cultures: Saturated bacterial culture 0.85 ml Glycerol, Ultrapure, sterile 0.15 ml Vortex the solution and transfer to a screw cap

storage tube. Freeze quickly and store at -70°C.CAS #56-81-5

16374 500ml 1L

Bioc

hem

ical

sBiochemicals

70 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Glycerol Tolerant Gel (GTG) Buffer, 20X Ready-Mixed Powder

ULTRAPUREMB GradeGlycerol Tolerant Gel (GTG) Buffer is formulated to resolve the problem of gel distortion associated with sequencing samples that contain glycerol. Standard TBE buffer causes gel distortion between 300-500 bases as a result of reactions between glycerol and boric acid to form an anionic ester compound, which migrates in the sequencing gel. This buffer also works equally well with samples that contain no glycerol.Form: Dry, white crystalline powder. After

reconstitution in 250 ml of high purity dH2O,

20X bottle contains 1.78M Tris, 0.57M Taurine and 0.01M EDTA. Dilute to 1X with high purity dH

2O for a solution consisting of 0.089M

Tris, 0.029M Taurine and 0.5mM EDTA. Total volume is 1.5 liters of 20X buffer or 30 liters of 1X buffer.

pH (1:20, 25°C): 8.9 ± 0.1Conductivity (1:20): 830 ± 100 µmhos/cmTesting: Meets or exceeds functional test criteria

for high quality gel electrophoresis.Application: •Specifically formulated to alleviate the effects of

glycerol in DNA sequencing or PAGE gelsStorage: Ambient. Crystals which form at low

temperatures can be redissolved by warming briefly. May be auto claved.

71949 6bottles

Glycerol Tolerant Gel (GTG) Buffer, 20X Solution

ULTRAPUREMB GradeGlycerol Tolerant Gel (GTG) Buffer is formulated to resolve the problem of gel distortion associated with sequencing samples that contain glycerol. Standard TBE buffer causes gel distortion between 300-500 bases as a result of reactions between glycerol and boric acid to form an anionic ester compound, which migrates in the sequencing gel. This buffer also works equally well with samples that contain no glycerol.Form: Solution consists of 1.78M Tris, 0.57M

Taurine and 0.01M EDTA. Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles. Dilute to 1X with high purity dH

2O for a solution consisting of 0.089M

Tris, 0.029M Taurine and 0.5mM EDTA. Total volume is 1.5 liters of 20X buffer or 30 liters of 1X buffer.

pH (1:20, 25°C): 8.9 ± 0.1Conductivity 1:20, 830 ± 100 µmhos/cmTesting: Meets or exceeds functional test criteria

for high quality gel electrophoresis. Application: •Specifically formulated to alleviate the effects of

glycerol in DNA sequencing or PAGE gelsStorage: Ambient. Crystals which form in the cold

at low temperatures can be redissolved by warming briefly.

75827 1L

β-Glycerophosphate, Sodium Salt, Pentahydrate

C3H

5(OH)

2PO

4Na

2•5H

2O

Formula Weight: 306.11 (pentahydrate)PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 97%Identity: By IRMoisture (KF): 29.4 ± 3% (pentahydrate)Alpha Content: ≤ 2.0%Heavy Metals (Pb): ≤ 0.002%CAS #819-83-0

16365 25gm 100gm 500gm 1kg

-Glycerophosphate, Sodium Salt, Pentahydrate

C3H

5(OH)

2PO

4Na

2•5H

2O

Formula Weight: 306.11Alpha Content: 50%CAS #1555-56-2

21655 100gm 500gm 1kg

Glycinamide, HydrochlorideH

2NCH

2CONH

2•HCl

Formula Weight: 110.54PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.0% (dry basis)Identity: By IRpKa (20°C): 8.20 ± 0.15Moisture: ≤ 5.0%Iron (Fe): ≤ 30 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #1668-10-6

16395 5gm 10gm 25gm 100gm

Biochemicals

Biochemicals


Glycine

ULTRAPUREMB GradeH

2NCH

2COOH

Formula Weight: 75.07PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Identity: By IRλ

max: 260 nm, 1M, 1 cm: ≤ 0.05

280 nm, 1M, 1 cm: ≤ 0.05Loss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.1%Readily Carbonizable Substances: Passes testHydrolyzable Substances: Passes testArsenic (As): ≤ 1 ppmBarium (Ba): ≤ 1 ppmCadmium (Cd): ≤ 1 ppmCalcium (Ca): ≤ 5 ppmChloride (Cl): ≤ 50 ppmCopper (Cu): ≤ 1 ppmIron (Fe): ≤ 1 ppmLead (Pb): ≤ 1 ppmMagnesium (Mg): ≤ 1 ppmManganese (Mn): ≤ 1 ppmSulfate (SO

4): ≤ 50 ppm

Zinc (Zn): ≤ 1 ppmContaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes testCAS #56-40-6

16407 100gm 500gm 1kg 5kg

GlycineACS Reagent GradeH

2NCH

2COOH

Formula Weight: 75.07PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 0.002%Chloride (Cl): ≤ 0.005%Sulfate (SO

4): ≤ 0.005%


Substances Darkened by Sulfuric Acid: Passes test

Hydrolyzable Substances: Passes test

16372 2.5kg

GlycineUSBioAnalyzedH

2NCH

2CO

2H

Formula Weight: 75.07PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 101.5% (dry basis)Identity: By IRLoss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.1%Sulfate (SO

4): ≤ 65 ppm

Heavy Metals (Pb): ≤ 20 ppmChloride (Cl): ≤ 70 ppmHydrolyzable Substances: Passes testResidual Solvents: Meets requirementsCAS #56-40-6

16405 500gm 1kg 5kg 25kg

Glycine, HydrochlorideNH

2CH

2COOH•HCl

Formula Weight: 111.53PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5% (as is)Identity: By IRChromatography (TLC): HomogeneousLoss on Drying: ≤ 3%CAS #6000-43-7

16420 100gm 500gm 1kg

GlycogenSource: Beef LiverCAS #9005-79-2

16440 1gm 5gm 25gm

Glycogen

ULTRAPURESource: OystersPRODUCT SPECIFICATIONSForm: Light tan powderIdentity: By IR[α]20

D : +170° to 200° (c=0.2, H

2O, dry basis)

Solubility (0.25%, 1M NaCl): Passes testLoss on Drying (110°C, 4 hrs.): ≤ 15%CAS #9005-79-2

16445 5gm 10gm 25gm

Glycogen, 20 mg/ml

ULTRAPUREMB GradeSource: OystersPRODUCT SPECIFICATIONSConcentration: 20 mg/ml in nuclease-free waterNote: Glycogen is an inert carrier which

significantly increases the efficiency of extracted DNA and RNA by ethanol precipitation.

Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes testStorage: -20°C

77534 1ml 5x1ml

Glycyl-GlycineNH

2CH

2CONHCH

2COOH

Formula Weight: 132.12PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Chromatography (TLC): HomogeneousIdentity: By IRpKa (25°C): 8.25 ± 0.15Solubility (10%, H


Loss on Drying: ≤ 0.2%Chloride (Cl): ≤ 0.02%CAS #556-50-3

16505 100gm 1kg

Bioc

hem

ical

sBiochemicals

7� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Glycyl-Glycine

ULTRAPURENH

2CH

2CONHCH

2COOH

Formula Weight: 132.12PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Chromatography (TLC): HomogeneousIdentity: By IRpKa (25°C): 8.25 ± 0.15Solubility (10%, H


pH (10%, H2O): 5.0 - 7.0

Loss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.2%Chloride (Cl): ≤ 0.02%Sulfate (SO

4): ≤ 0.03%

Iron (Fe): ≤ 30 ppmHeavy Metals (Pb): ≤ 10 ppmFree glycine content: ≤ 0.02%CAS #556-50-3

16507 50gm 100gm 250gm 1kg

Glycyl-Glycyl-β-Naphthylamide, Hydrobromide

C14

H16

O2N

3Br

Formula Weight: 338.20PRODUCT SPECIFICATIONSForm: White to off-white powderChromatography (TLC): HomogeneousStorage: 4°CCAS #3313-48-2

16676 100mg 500mg 1gm

GMPSee Guanosine-5'-Monophosphate, page 237

GTPSee Guanosine-5'-Triphosphate, page 238

Guanidine, Hydrochloride

ULTRAPUREMB Grade(NH

2)2C=NH•HCl

Formula Weight: 95.53PRODUCT SPECIFICATIONSForm: White/clear crystalsIdentity: By IRAssay: ≥ 99.5%Solubility (6M, H


A (225 nm, 6M, 1 cm): ≤ 0.2A (260 nm, 6M, 1 cm): ≤ 0.03Melting Point: 184 ± 3°CResidue on Ignition: ≤ 0.05%Aldehyde: None detectedAmmeline: None detectedArsenic (As): ≤ 1 ppmCopper (Cu): ≤ 1 ppmIron (Fe): ≤ 2 ppmLead (Pb): ≤ 5 ppmSulfate (SO

4): ≤ 50 ppm

Zinc (Zn): ≤ 1 ppmDNase (endo): Passes testRNase: Passes testProtease: Passes testApplications:•Used for extraction of RNA•Preparation of high molecular weight genomic

DNA•Solubilizing inclusion bodiesPhenol/Chloroform RNA Isolation MethodA. Guanidine HCl Homogenization Buffer for RNA

Isolation: 8.0M Guanidine HCl, 0.1M Sodium Acetate, pH 5.5, 5.0mM Dithiothreitol, 0.5% Sodium Lauryl Sarcosinate

B. Extraction with Phenol: Most extractions are performed using equal volumes of equilibrated phenol with respect to the sample volume. Normally, the extraction is performed twice with phenol and once with a 1:1 solution of phenol/chloroform. Hence, it is estimated that 25 ml of phenol is required for every 10 ml of sample.

Note: If regular phenol is purchased, it will need to be equilibrated before use. For this reason, many customers may prefer to purchase phenol from USB that is already equilibrated (Product Code 75829 or 77510).

C. RNA Resuspension Buffer: TE, pH 7.5.CAS #50-01-1

75823 100gm 500gm

Guanidine, Hydrochloride(NH

2)2C=NH•HCl

Formula Weight: 95.53PRODUCT SPECIFICATIONSForm: White/clear crystalsIdentity: By IRMelting Point: 184 - 190°CLoss on Drying: ≤ 0.50%Note: Contains some water insoluble matter.CAS #50-01-1

34007 250gm 1kg 5kg

Guanidine Thiocyanate

ULTRAPURE(NH

2)2C=NH•HNCS

Formula Weight: 118.16PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99%Identity: By IRA (280 nm, 6M, 1 cm): ≤ 0.8Solubility (5%, H

2O): Passes test

Solubility (5%, MeOH): Passes testMelting Point: 120 ± 2°CMoisture (KF): ≤ 1%Copper (Cu): ≤ 0.5 ppmIron (Fe): ≤ 5 ppmLead (Pb): ≤ 1 ppmZinc (Zn): ≤ 2 ppmApplications:•Used to extract RNA from cells and tissue•Denatures protein, thus inactivating

ribonucleasesSolution for Guanidine Thiocyanate RNA

Extraction: Guanidine Thiocyanate 4.0M Dithiothreitol 0.1mM Sodium Acetate, pH 5.2 20mM N-Lauryl sarcosine 0.5% Heat slightly (65°C) to dissolve the guanidine

thiocyanate and sodium acetate. Add the dithiothreitol and N-lauryl sarcosine. The pH should be about 5.5. Filter and store at room temperature.

Cesium Chloride RNA Isolation MethodA. Guanidine Thiocyanate Homogenization Buffer

for RNA Isolation: 4.0M Guanidine Thiocyanate, 0.1M Tris, pH 7.5, 1.0% 2-mercaptoethanol.

B. Cesium Chloride RNA Isolation Solution: Most researchers layer their RNA homogenates onto a cushion of 5.7M Cesium Chloride.

C. RNA Resuspension Buffer: TE, pH 7.5.CAS #593-84-0

75818 100gm 250gm 1kg

Biochemicals

Biochemicals


GuanineC

5H

5N

5O

Formula Weight: 151.13PRODUCT SPECIFICATIONSForm: White to cream colored powderAssay: 97.0 - 102.0% (dry basis)Identity: By IRLoss on Drying (105°C, 4 hrs.): ≤ 1.5%Residue on Ignition: ≤ 0.2%Chromatography (TLC): HomogeneousArsenic (As): ≤ 2 ppmHeavy Metals (Pb): ≤ 10 ppmParticle Size (passes 160 microns): ≥ 95%

(by weight)Storage: Ambient in tightly closed containers.Reference Constants:λ


εmax

(pH 7, NRC ): 10.7 x 103

ε260

(pH 7, DBR ): 7.2 x 103

CAS #73-40-5

16730 100gm 500gm 1kg

Guanine HydrochlorideC

5H

5N

5O•HCl

Formula Weight: 187.59 (anhydrous)* 205.60 (monohydrate)PRODUCT SPECIFICATIONSForm: White to pale yellow crystalline powderAssay (pH 1.0): 98 ± 3% (dry basis)Assay (pH 7.0): 98 ± 3% (dry basis)Identity: By IRChromatography (TLC): HomogeneousSpectral Ratios (pH 1.0): A

250/A

260: 1.37 ± 0.03

A280

/A260

: 0.84 ± 0.02Spectral Ratios (pH 7.0): A

250/A

260: 1.42 ± 0.03

A280

/A260

: 1.04 ± 0.02Moisture (KF): ≤ 10%λ

max (pH 1.0): 248 nm ± 1 nm

λmax

(pH 7.0): 246 nm ± 1 nm*Note: The moisture for this product can vary up

to a monohydrate.CAS #635-39-2

16740 10gm 25gm 100gm 1kg

GuanosineC

10H

13N

5O

5

Formula Weight: 283.24PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (UV): ≥ 98%λ

max: 252 nm ± 1 nm

Spectral Ratios: A

250/A

260: 1.15 ± 0.03

A280

/A260



εmax

(pH 7, NRC ): 13.7 x 103

CAS #118-00-3

16750 10gm 25gm 100gm 1kg

Guanosine, Low EndotoxinC

10H

13N

5O

5•nH

2O


PRODUCT SPECIFICATIONSForm: White to slightly yellow crystalline powderAssay: ≥ 98.0% (dry basis)Identity: By IRMoisture (KF): ≤ 13%Heavy Metals (Pb): ≤ 10 ppmTotal Microbial Count: ≤ 100 cfu/gm Escherichia coli: Negative Pseudomonas aeruginosa: Negative Staphylococcus aureus: Negative Salmonella: NegativeTest for Endotoxins (LAL test): ≤ 1.5 EU/mgCAS #118-00-3

16751 25gm 100gm

Guanosine-2',3'-Cyclic Monophosphate, Sodium Salt(Cyclic GMP)

C10

H11

N5O

7PNa


16762 100mg 250mg

Guanosine-3'-5' Monophosphate, Sodium Salt(cGMP)

C10

H11

N5O

7PNa

Formula Weight: 367.19PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (UV): ≥ 95%Spectral Ratios: A

250/A

260: 0.91 ± 0.03

A280

/A260

: 0.71 ± 0.03Storage: -20°CCAS #40732-48-7

16770 250mg

Guanosine-5'-Diphosphate, Disodium Salt(GDP)

C10

H13

N5O

11P

2Na

2•3H

2O



εmax

(pH 7, NRC ): 13.7 x 103

ε260

(pH 7, DBR ): 11.8 x 103


16785 25mg 100mg 500mg 1gm

Guanosine-5'-Monophosphate, Disodium Salt(GMP)

C10

H12

N5O

8PNa

2

Formula Weight: 407.18PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (Total UV): ≥ 98%Moisture (KF): ≤ 25%Reference Constants:λ


εmax

(pH 7, NRC ): 13.7 x 103

ε260

(pH 7, DBR ): 11.7 x 103


16790 5gm

Bioc

hem

ical

sBiochemicals

7� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Guanosine-5'-Triphosphate, Sodium Salt, 100mM Solution(GTP)

ULTRAPUREC

10H

12N

5O

14P

3Na

4


77243 25µmol(250µl)

Guanosine-5'-Triphosphate, Disodium Salt(GTP)

C10

H14

N5O

14P

3Na

2

Formula Weight: 567.14PRODUCT SPECIFICATIONSAssay: ≥ 95%λ

max: 252 nm ± 1nm

εmax

: (13.7 ± 0.7) x103

Spectral Ratios (pH 7): A

250/A

260: 1.15 ± 0.03

A280

/A260



εmax

(pH 7, NRC ): 13.7 x 103

ε260

(pH 7, DBR ): 11.7 x 103

Storage: -20°C in tightly closed containers.CAS #56001-37-7

16800 25mg 100mg 500mg 1gm

Guanylic AcidSee Guanosine-5'-Monophosphate, page 237

HematoxylinC

16H

14O

6

Formula Weight: 302.28 (anhydrous)CAS #517-28-2

16865 5gm 25gm 100gm

HeminC

34H

32O

4N

4FeCl

Formula Weight: 651.94 Source: Porcine

16880 10gm 50gm

HemoglobinSource: BovineCAS #9008-02-0

16890 200gm 1kg

HemoglobinSource: Bovine Blood2X crystallizedPRODUCT SPECIFICATIONSForm: Brownish-red crystalline powderAssay: ≥ 99%Identity: By IRMoisture (KF): ≤ 3.0%Solubility: Soluble in distilled water or dilute

buffers.Storage: 4°CCAS #9008-02-0

16891 1gm 5gm 10gm

Heparin, Sodium Salt

ULTRAPUREUSBioAnalyzedPRODUCT SPECIFICATIONSForm: White to pale cream-colored powderAssay: ≥ 140 USP Heparin units/mg (dry basis)Identity: Passes testpH (1%, H

2O): 5.0 - 7.5

Loss on Drying: ≤ 5.0%Residue on Ignition: 28.0% to 41.0%Nitrogen Content: 1.3% to 2.5% (dry basis)Protein: Passes testHeavy Metals: ≤ 0.003%Antifactor Xa Activity: 80 - 120%Bacterial Endotoxins: ≤ 0.03 Endotoxin units/

Heparin unitApplication:•Used as a blocking agent to reduce background

in Southern and in situ hybridizationCAS #9041-08-1

16920 50,000units 100,000units 500,000units 1mu

Hexamethonium ChlorideC

12H

30Cl

2N

2•2H

2O

Formula Weight: 309.32PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: ≥ 98.0% (as dihydrate)Identity: By IR

16950 25gm

Heparin, Sodium SolutionAvailable in 10 ml vials. Sterile filtered,

1,000 units per ml.Not for human use.Storage: 4°C

16925 10vl

Biochemicals

Biochemicals


HEPES, 1M Solution, pH 7.3

ULTRAPUREMB GradeForm: 1M solution of HEPES in high purity H

2O,

pH 7.3 (at 37°C). Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles.

pH (37°C): 7.3 ± 0.1Contaminant Testing:

DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test Protease: Passes test

16924 100ml 500ml 1L

HEPES(N-[2-Hydroxyethyl]piperazine-N' [2-Ethane-sulfonic Acid])

ULTRAPUREC

8H

18N

2O

4S

Formula Weight: 238.30PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0% (dry basis)Identity: By IRpKa (20°C): 7.55 ± 0.15A (250 nm, 1M, 1 cm): ≤ 0.2Loss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Chloride (Cl): ≤ 0.005%Phosphate (PO

4): ≤ 0.001%


Iron (Fe): ≤ 5 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #7365-45-9

16926 100gm 250gm 1kg 5kg

HEPES, Sodium SaltHO(CH

2)2(C

4H

8N

2)(CH

2)2SO

3Na

Formula Weight: 260.29PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (dry basis)Identity: By IRpKa (20°C): 7.55 ± 0.15pH (0.1M, H

2O): 10.2 ± 0.8

A (250 nm, 5%, 1 cm): ≤ 0.30A (260 nm, 5%, 1 cm): ≤ 0.175Solubility (5%, H

2O): Clear solution

Loss on Drying: ≤ 4.0%Heavy Metals (Pb): ≤ 10 ppmCAS #75277-39-3

16928 25gm 100gm 1kg

HEPPSHO

3S(CH

2)3(C

4H

8N

2)(CH

2)2OH


16927 100gm 1kg

n-Hexadecyl-N,N-Dimethyl-3-Ammonio-1-Propane-Sulfonate


Hexokinase(E.C.2.7.1.1)Source: YeastPRODUCT SPECIFICATIONSForm: Lyophilized, ammonium sulfate-free

powderActivity: ≥ 140 units/mg protein ≥ 80 units/mg powderUnit Definition: One unit converts 1 µmol of

glucose to glucose-6-phosphate per min at 25°C, pH 7.5 in the presence of ATP.

Contaminating Activities: PGI: ≤ 0.1% G-6-PDH: ≤ 0.01% PGluM: ≤ 0.01% MK: ≤ 0.01% ATPase: ≤ 0.003% PGDH: ≤ 0.005% CK: ≤ 0.005% GR: ≤ 0.05%Note: The above product is available in



16965 1,000units 2,500units 10,000units 25,000units 50,000units

Hexokinase(E.C.2.7.1.1)Source: YeastPRODUCT SPECIFICATIONSForm: Ammonium sulfate suspensionActivity: ≥ 140 units/mg proteinUnit Definition: One unit converts 1 µmol of

glucose to glucose-6-phosphate/min at 25°C, pH 7.5 in the presence of ATP.

Contaminating Activities: PGI: ≤ 0.1% G-6-PDH: ≤ 0.01% PGluM: ≤ 0.01% MK: ≤ 0.01% ATPase: ≤ 0.001% 6-PGDH: ≤ 0.005% CK: ≤ 0.005% GR: ≤ 0.05%Note: The above product is available in


Storage: 4°C

16975 2,500units 10,000units 25,000units 50,000units

Bioc

hem

ical

sBiochemicals

76 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

D-Histidine(C

3N

2H

3)CH

2CH(NH

2COOH)


17055 1gm 10gm 25gm 100gm

D-Histidine, Hydrochloride, Monohydrate

(C3H

3N

2)CH

2CH(NH

2)COOH•HCl•H

2O


17050 2gm 10gm 25gm 100gm

DL-Histidine(C

3N

2H

3)CH

2CH(NH

2)COOH


17060 10gm 25gm 100gm

L-Histidine, Free BaseUSBioAnalyzed(C

3N

2H

3)CH

2CH(NH

2)COOH


6H

9N

3O

2 (dry basis)

Identity: By IRChromatographic Purity: Passes testpH (2%, H

2O): 7.0 - 8.5

[α]25D : +12.6° to +14.0° (c=11 in 6N HCl)


4): ≤ 0.03%

CAS #71-00-1

17070 25gm 100gm 1kg

L-Histidine, Monohydrochloride, Monohydrate

(C3H

3N

2)CH

2CH(NH

2)COOH•HCl•H

2O


D : +8.5° to +10.5° (c=in 6N HCl)


4): ≤ 0.02%

Arsenic (As2O

3): ≤ 1 ppm

Iron (Fe): ≤ 30 ppmSulfate (SO

4): ≤ 0.03%

CAS #5934-29-2

17080 100gm 1kg 5kg

L-Histidine, Monohydrochloride, Monohydrate, Histamine Free

(C3H

3N

2)CH

2CH(NH

2)COOH•HCl•H

2O

Formula Weight: 209.63PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 101.0%Identity: By IRChromatography (TLC): Homogeneous[α]20

D : +8.5 to +10.5° (c=11 in 6N HCl)


4): ≤ 0.02%

Arsenic (As2O

3): ≤ 1 ppm

Chloride (Cl): 16.6 - 17.1%Iron (Fe): ≤ 10 ppmSulfate (SO

4): ≤ 0.03%

CAS #5934-29-2

17085 100gm 500gm 1kg

L-Histidinol, Dihydrochloride(C

3H

3N

2)CH

2CH(NH

2)CH

2OH•2HCl


17095 100mg 1gm 5gm

HistoneSource: Calf ThymusStorage: 4°C

17130 100mg 500mg 1gm

Histone, Salt FreeSource: Calf ThymusSalt free, Dialyzed, LyophilizedStorage: 4°C

17105 100mg 500mg 1gm

Histone-Lysine RichSource: Calf ThymusStorage: 4°C

17120 25mg 100mg

Histone-Lysine Rich F1

Source: Calf ThymusStorage: 4°C

17126 10mg 50mg

Histone-Slightly Lysine Rich F2b

Source: Calf ThymusStorage: 4°C

17128 10mg 50mg

DL-Homocysteine, Free Base(2-Amino-4-Mercaptobutyric)

HSCH2CH

2CH(NH

2)COOH


17195 1gm 5gm

DL-HomocystineC

8H

16N

2O

4S

2


17185 25gm 100gm

Biochemicals

Biochemicals


Horseradish PeroxidaseSee Peroxidase, page 270

Human Pro-matrilysin, Recombinant(r-hProMMP-7)

Source: Human recombinant from E. coliPRODUCT SPECIFICATIONSForm: Solution in 25mM Tris-HCl (pH 7.5),

150mM NaCl, 5mM CaCl2, 0.01% Brij-35 and

0.02% NaN3

Concentration: Approx. 1 mg/mlSpecific Activity: ≥ 1,400 units/mg proteinUnit Definition: One unit is defined as the

digestion of 1 µg Azocoll/min at 37°C.Storage: -80°C. Avoid repeated freezing and

thawing.

26115 100µg

HydrocortisoneUSBioAnalyzedC

21H

30O

5

Formula Weight: 362.46PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: 97.0 - 102.0% (dry basis)Chromatographic Purity: Meets requirementsIdentity: By IRIdentity (UV): Passes test[α]20

D : +150° to +156° (c=1 in Dioxane)

Loss on Drying: ≤ 1.0%Residue on Ignition: NegligibleO.V.I.: Meets requirementsCAS #50-23-7

17320 5gm 10gm 25gm 100gm

Hydroxylamine, HydrochlorideNH

2OH•HCl

Formula Weight: 69.49PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Identity: By IRMelting Point: 148 - 160°CLoss On Drying: ≤ 7.0%CAS #5470-11-1

17330 500gm 1kg

Hydroxy-L-Proline, BacterialC

5H

9NO

3


D : -74.0° to -77.0° (c=4 in H

2O)

Loss on Drying: ≤ 0.2%

17447

Hydroxy-L-ProlineC

5H

9NO

3


D : -74.0° to -77.0° (c=4 in H

2O)


17445 10gm 25gm 100gm 1kg

L-Hydroxysuccinic AcidSee L-Malic Acid, page 252

HydroxyureaCH

4N

2O

2

Formula Weight: 76.05PRODUCT SPECIFICATIONSForm: White crystalline powderChromatography (TLC): HomogeneousIdentity: By IRMelting Point: 139 - 142°CMoisture (KF): ≤ 2.0%Storage: 4°CCAS #127-07-1

17490 1gm 5gm 10gm 25gm

HypoxanthineC

5H

4N

4O

Formula Weight: 136.11PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: 100 ± 3%Chromatography (TLC): HomogeneousIdentity: By IRλ

max (pH 7.0): 250 nm ± 1 nm

εmax

(pH 7.0): [10.7 ± 0.3] x 103


250/A

260: 1.32 ± 0.05

A280

/A260



εmax

(pH 7, NRC ): 10.7 x 103

ε260

(pH 6, DBR ): 7.9 x 103

CAS #68-94-0

17520 5gm 25gm 100gm

r-iCDHSee Isocitrate Dehydrogenase, Recombinant,

page 243

Igepal CA-630Nonidet P40 Substitute ([Octylphenoxy]polyethoxyethanol)

ULTRAPUREPRODUCT SPECIFICATIONSForm: Clear, slightly yellow liquidDensity: 1.06 ± 0.005Solubility (5%, H

2O): Complete, clear and

colorlesspH (5%, H

2O): 5.5 - 7.0

(n20d): 1.491 ± 0.001

Chemically indistinguishable from Nonidet P40, which is no longer commercially available.

19626 500ml 1L

Bioc

hem

ical

sBiochemicals

78 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Imidazole

ULTRAPUREC

3H

4N

2

Formula Weight: 68.08PRODUCT SPECIFICATIONSForm: White to cream crystalline flakes/powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (25°C): 6.95 ± 0.15Melting Point: No more than a 3 degree range

which includes 90°CMoisture: ≤ 1.0%Iron (Fe): ≤ 30 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #288-32-4

17525 25gm 100gm 500gm 1kg 5kg

IndigalSee 5-Bromo-3 Indolyl-β-D Galactopyranoside,

page 199

Indole-3-Acetic AcidC

10H

9NO

2

Formula Weight: 175.18Note: This product is for R & D purposes only.

It is not for use as a plant growth regulator in commercial horticulture applications, on developed plants, nor for drug or household uses.

CAS #87-51-4

17550 1gm 5gm 25gm 100gm 500gm

Indole-3-Acrylic AcidC

11H

9NO

2


17565 1gm 5gm 10gm

Indole-3-Butyric AcidC

12H

13NO

2


17575 5gm 25gm 100gm

Indole-3-Butyric Acid, Potassium SaltC

12H

12NO

2K

Formula Weight: 241.33Very soluble in water.

17580 5gm 25gm

InosineC

10H

12N

4O

5

Formula Weight: 268.23PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (Total UV): 98.0 - 102.0% (dry basis)Identity: By IRSpectral Ratios (pH 6.0): A

250/A

260: 1.70 ± 0.05

A280

/A260

: 0.25 ± 0.03Loss on Drying: ≤ 1.0%Arsenic (As

2O

3): ≤ 2 ppm

Heavy Metals (Pb): ≤ 10 ppmReference Constants:λ


εmax

(pH 6, NRC ): 12.3 x 103

ε260

(pH 6, DBR ): 7.1 x 103

CAS #58-63-9

17620 5gm 10gm 25gm 100gm

Inositol(myo-Inositol)

C6H

6(OH)

6

Formula Weight: 180.16PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 97.0% (dry basis)Identity: By IRMelting Point: 224 - 227°CLoss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%CAS #87-89-8

17645 100gm 500gm 1kg

InulinSource: Chicory RootPRODUCT SPECIFICATIONSForm: White to off-white crystalline powder[α]20

D : -35° ± 5.0° (c=5 in H

2O)

Moisture (KF): ≤ 10%Residue on Ignition: ≤ 0.2%CAS #9005-80-5

17670 25gm 100gm

Invertase(E.C.3.2.1.26)Source: YeastForm: Solution in 45% glycerolActivity: AOAC K value of 0.3CAS #9001-02-9

17680 100gm 500gm 1kg

5-Iodo-2'-Deoxyuridine(IDU)

C9H

11IN

2O

5



εmax

(pH 7, NRC ): 7.69 x 103

CAS #54-42-2

17735 500mg 1gm 5gm 25gm

Iodonitrotetrazolium Violet(INT)

Grade IC

19H

13ClIN

5O

2


17740 100mg 250mg 500mg 1gm 5gm 25gm

Biochemicals

Biochemicals


Iodonitrotetrazolium Violet(INT)

Grade IIC

19H

13ClIN

5O

2

Formula Weight: 505.69This grade is possibly less pure than Grade I and

may be less clear in solution but is suitable for enzyme assays.

CAS #146-68-9

17741 1gm 5gm 25gm

Ionomycin, Calcium SaltC

41H

70O

9•Ca

Formula Weight: 747.07PRODUCT SPECIFICATIONSForm: Polyether antibiotic with a high affinity for

Ca2+

Purity (HPLC): ≥ 95%Reference:1. Hu, T. Q. and Weiler, L. (1994) Canadian

Journal of Chemistry 72, 1500-1511.Storage: 4°C, in tight containersCAS #56092-82-1

25106 1mg

Ionomycin, Free AcidC

41H

72O

9

Source: Streptomyces conglobatusFormula Weight: 709.00PRODUCT SPECIFICATIONSForm: Polyether antibiotic with a high affinity for

Ca2+.Storage: 4°C, in tight containersCAS #56092-81-0

25107 1mg

IPTGSee Isopropyl-β-D-Thiogalactopyranoside,

page 244

Isocitrate Dehydrogenase, (NAD+ Specific), Recombinant[r-ICDH (NAD+)]

(E.C.1.1.1.41)Source: Bacterial recombinant in E. coliPRODUCT SPECIFICATIONSForm: Lyophilized powderSpecific Activity: ≥ 40 units/mg proteinContaminating Activity:

Isocitrate Dehydrogenase (NADP+): ≤ 5.0%Unit Definition: One unit converts 1 µmole of

Isocitrate to α-ketoglutarate/min at 25°C, pH 8.5.

Storage: -20°C

26120 150units 600units

Isocitrate Dehydrogenase, (NADP+ Specific), Recombinant[r-ICDH (NADP+)]

NADP+ Specific(E.C.1.1.1.42)Source: Yeast recombinant in S. cerevisiaePRODUCT SPECIFICATIONSForm: 50% Glycerol SolutionSpecific Activity: ≥ 30 units/mg proteinpH: 7.0 ± 0.5Unit Definition: One unit converts 1 µmol of

isocitrate to α-Ketoglutarate/min at 25°C, pH 8.5.

Contaminating Activity: ICDH (NAD+): ≤ 0.5%Note: The above product is available in

manufacturing quantities as an ammonium sulfate suspension or a glycerol solution. Please inquire for bulk pricing.

Storage: -20°C


DL-Isocitric Acid, Trisodium SaltC

6H

5O

7Na

3•nH

2O


PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: ≥ 93%Identity: By IRMoisture (KF): ≤ 20%CAS #1637-73-6

17810 1gm 5gm 10gm

DL-IsoleucineCH

3CH

2CH(CH

3)CH(NH

2)COOH

Formula Weight: 131.17PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0%Identity: By IRChromatography (TLC): HomogeneousLoss on Drying: ≤ 0.3%Residue on Ignition: ≤ 0.1%Heavy Metals: ≤ 20 ppmChloride (Cl): ≤ 0.02%Iron (Fe): ≤ 50 ppmSulfate (SO

4): ≤ 0.05%

CAS #443-79-8

17820 10gm 25gm 100gm 500gm 1kg

L-IsoleucineUSBioAnalyzedCH

3CH

2CH(CH

3)CH(NH

2)COOH


6H

13NO

2 (dry basis)

Identity: By IRChromatographic Purity: Passes testpH (1%, H

2O): 5.5 - 7.0

[α]20D : +38.9° to +41.8° (c=4 in 6N HCl, 20°C)


4): ≤ 0.03%

Heavy Metals (Pb): ≤ 0.0015%Chloride (Cl): ≤ 0.05%Iron (Fe): ≤ 0.003%Residual Solvents: Meets requirementsCAS #73-32-5

17825 5gm 10gm 25gm 100gm 500gm 1kg

Isonicotinic AcidC

6H

5NO

2


17872 100gm 500gm

Bioc

hem

ical

sBiochemicals

80 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Isonicotinic Acid HydrazideC

6H

7N

3O


17870 50gm 100gm 500gm

Isopropyl-β-D-Thiogalactopyranoside (IPTG), Dioxane Free

ULTRAPUREC

9H

18O

5S

Formula Weight: 238.30PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: ≥ 99%Identity: By IR[α]20

D : -31.5°C ± 1° (c=1 in H

2O)

Melting Point: 109 - 114°CMoisture (KF): ≤ 2.0%Dioxane (GC): ≤ 0.02%Applications:•Induces the lac operon in E. coli by binding and

inactivating the lac repressor•Selection for lac Y mutants•Selection for recombinant plasmids containing β-galactosidase fusion proteins

•Induces the cellular content of lactose permeaseStorage: -20°CCAS #367-93-1

17886 1gm 5gm

Isopropyl-β-D-Thiogalactopyranoside (IPTG), - Plant Origin, Dioxane-Free

C9H

18O

5S

Formula Weight: 238.30PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: (HPLC) ≥ 98%Identity: By IR[α]20

D : -31.5° ± 1.5° (c=1 in H

2O)

Melting Point: 109 - 114°CMoisture (KF): ≤ 2.0%Dioxane (GC): ≤ 0.02%Storage: -20°C, desiccated; protect from lightCAS #367-93-1

17913 1gm 5gm

Kanamycin SulfateUSBioAnalyzedC

18H

36N

4O

11•H

2SO

4

Formula Weight: 582.58PRODUCT SPECIFICATIONSForm: Off-white powderActivity: ≥ 750 µg of C

18H

36N

4O

11/mg powder (dry basis)

≥ 720 µg of C18

H36

N4O

11/mg powder (as is)

Identity (A, B, C): Passes testsChromatographic Purity: Passes testpH (1%, H

2O): 6.5 - 8.5

Loss on Drying: ≤ 4.0%Residue on Ignition: ≤ 1.0%Crystallinity: Passes testMode of Action:•Binds to ribosomal components and inhibits

protein synthesis. Kanamycin is inactivated by an aminoglycoside phospho transferase (MW 25,000) in the periplasmic space.

Application:•A selectable marker for cosmid vectors used in

transfection of mammalian cellsStorage: 4°CCAS #25389-94-0

17924 5gm 25gm

KeratinCAS #68238-35-7

17925 100gm 500gm

KethoxalC

6H

12O

4

Formula Weight: 148.16PRODUCT SPECIFICATIONSForm: Clear, light yellow liquidIdentity: By IRStorage: -20°CCAS #27762-78-3

17930 5gm 10gm 25gm

-Ketoglutaric Acid, Free AcidC

5H

6O

5

Formula Weight: 146.10PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: ≥ 98.0% (as is)Identity: By IRMelting Point: 114 - 119°CLoss on Drying: ≤ 1.0%Storage: 4°CCAS #328-50-7

17950 25gm 100gm 500gm 1kg

α-Ketoglutaric Acid, Disodium Salt, Dihydrate

C5H

4O

5Na

2•2H

2O

Formula Weight: 226.09 (dihydrate) 190.06 (anhydrous)PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98.0% (as is)Identity: By IRMoisture: 14.0 - 18.0%CAS #305-72-6

17955 5gm 25gm 100gm 1kg

KinetinC

10H

9N

5O

Formula Weight: 215.21PRODUCT SPECIFICATIONSForm: Off-white powderAssay: ≥ 96%Identity: By IRε

max: ≥ 18.0 x 103

λmax

: 267 ± 1 nmMoisture (KF): ≤ 2.0%Reference Constants:λ


εmax

(pH 6, NRC ): 18.8 x 103


17980 500mg 1gm

Biochemicals

Biochemicals


LactalbuminCAS #9013-90-5

18035 1lb 5lb 25lb 100lb

Lactalbumin Hydrolysate, Enzymatic Hydrolysate(Peptones)

Form: Light tan powderMoisture: ≤ 6.5%pH (6%, H

2O): 6.7 - 7.7

Amino Nitrogen: 4.5 - 6.0%Total Nitrogen: 11.0 - 13.0%Protein (N x 6.38): 70.0 - 83.0%Microbial Content: Standard Plate Count: ≤ 5,000 cfu/gm Yeast and Mold: ≤ 100 cfu/gm Coliform: ≤ 10 cfu/gm Salmonella: None detected in 100 gmCAS #68458-87-7

18055 1lb 5lb 25lb

Lactate Dehydrogenase(E.C.1.1.1.27)Source: Beef HeartPRODUCT SPECIFICATIONSForm: Lyophilized powder, salt freeActivity: Approx. 250 units/mg proteinUnit Definition: One unit reduces 1 µmol of

pyruvate to L-lactate per minute at 37°C, pH 7.0.

Contaminating Activities: PK: ≤ 0.01% GPT: ≤ 0.01% MDH: ≤ 0.05% GOT: ≤ 0.01%Storage: -20°CCAS #9001-60-9


Lactate Dehydrogenase(E.C.1.1.1.27)Source: Bovine HeartPRODUCT SPECIFICATIONSForm: Ammonium sulfate suspensionUnit Definition: One unit oxidizes 1 µmol of NADH/

min at 25°C, pH 7.4.Storage: 4°C


Lactate Dehydrogenase(E.C.1.1.1.27)Source: Porcine HeartPRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: ≥ 300 units/mg proteinProtein: ≥ 30%Unit Definition: One unit oxidizes 1 µmol of NADH/

min at 25°C, pH 7.0.Contaminating Activities: MDH: ≤ 0.03% MK: ≤ 0.01% PK: ≤ 0.003% GPT*: ≤ 0.03% GOT*: ≤ 0.03% *Both transaminase activities include α-

hydroxyglutarate dehydrogenase activity.Note: The above product is available in

manufacturing quantities as a lyophilized powder, ammonium sulfate suspension, or a glycerol solution. Please inquire for bulk pricing.

Storage: -20°C

18073 5,000units 10,000units 50,000units 100,000units

Lactate Dehydrogenase(E.C.1.1.1.27)Source: Rabbit MusclePRODUCT SPECIFICATIONSForm: Lyophilized, ammonium sulfate-free

powderActivity: ≥ 400 units/mg proteinUnit Definition: One unit oxidizes 1 µmol of NADH/

min at 25°C, pH 7.4.Contaminating Activities: PK: ≤ 0.01% MDH: ≤ 0.01% GPT: ≤ 0.01%Storage: -20°CCAS #9001-60-9


Lactate Dehydrogenase, Recombinant(r-LDH)

(E.C.1.1.1.27)Source: Chicken HeartHost cell: E. coliPRODUCT SPECIFICATIONSForm: Lyophilized powderSpecific Activity: ≥ 200 units/mg proteinProtein (per mg of powder): 600 ± 300 µgSucrose (per mg of powder): 400 ± 300 µgPotassium Phosphate (per mg of powder): 100

± 100 µgContaminating Activities: Malate Dehydrogenase: ≤ 0.030% Myokinase: ≤ 0.010% Pyruvate Kinase: ≤ 0.010% Glutamic-Pyruvic Transaminase (GPT)*: ≤

0.030% Glutamic-Oxaloacetic Transaminase (GOT)*: ≤

0.030% *Both transaminase activities include α-

hydroxyglutarate dehydrogenase activityUnit Definition: One unit is defined as 1 µmol of

NAD+ production per minute under the assay conditions (25°C, pH 7.0).

Storage: -20°C, protect from moisture

26112 1,000units

DL-Lactic Acid, Free Acid, 85%Form: Clear, viscous liquidCAS #598-82-3

18140 500gm 1kg

Bioc

hem

ical

sBiochemicals

8� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

DL-Lactic Acid, Lithium Salt(Lithium Lactate)

Reagent GradeC

3H

5LiO

3


18115 100gm 500gm 1kg

DL-Lactic Acid, Sodium Salt, 60% Solution(Sodium Lactate)

USBioAnalyzedC

3H

5NaO

3

Formula Weight: 112.06PRODUCT SPECIFICATIONSForm: Odorless, clear liquidAssay: 58.8 - 61.2%pH (as is soln.): 5.0 - 9.0[α]25

D : 0.00° ± 0.05 (as is solution)

Citric, oxalic, phophoric, or tartaric acid: Passes test

Methanol & methyl esters: Passes testSugars: Passes testSulfate (SO

4): Passes test

Heavy Metals (Pb): ≤ 10 ppmChloride (Cl): ≤ 0.05%Iron (Fe): ≤ 1 ppm

18085 1lb

L- (+)-Lactic Acid 40%, Free AcidC

3H

6O

3


18170 5gm 10gm 25gm

L- (+)-Lactic Acid, Lithium Salt(Lithium Lactate)

C3H

5LiO

3

Formula Weight: 96.01PRODUCT SPECIFICATIONSForm: White crystalline powder[α]20

D : -11.5° ± 1.5° (c=10, H

2O)

Solubility: Passes testLoss on Drying: ≤ 0.5%CAS #27848-80-2

18160 5gm 10gm 100gm

LactoferrinSource: Bovine MilkStorage: 4°C

18177 100mg 500mg 1gm

β-LactoglobulinSource: Bovine MilkStorage: 4°CCAS #9045-23-2

18180 1gm

D-(+)-Lactose, MonohydrateUSBioAnalyzedC

12H

22O

11•H

2O

Formula Weight: 360.31PRODUCT SPECIFICATIONSForm: White powderClarity and Color of Solution: Passes testIdentity (A, B, C): Passes tests[α]20

D : +54.4° to +55.9° (c=10 in 0.2 ml 6N

NH4OH/100 ml H

2O)

Acidity or Alkalinity: Passes testLoss on Drying: ≤ 0.5%Moisture (KF): 4.5 - 5.5%Residue on Ignition: ≤ 0.1%Protein and Light-Absorbing Impurities: Passes

testHeavy Metals (Pb): ≤ 5 ppmMicrobial Limits: Passes testCAS #64044-51-5

18185 1kg 5kg

Lambda DNASee Molecular Biology Products & Kits Section,

page 92

Lauryl MaltosideSee Dodecyl Maltoside, page 222

N-Lauroyl Sarcosine, Sodium Salt(Sodium-N-Lauryl Sarcosine)

ULTRAPUREHO

2CCH

2CH

3NCO(CH

2)10

CH2•Na

Formula Weight: 293.38PRODUCT SPECIFICATIONSForm: White to faint white-yellow powderIdentity: By IRMoisture (KF): ≤ 5.0%pH (10%, H

2O): 7.5 - 8.5

Solubility (10%, H2O): Clear to slightly hazy,

colorless to faint yellow solutionCAS #137-16-6

21653 50gm 100gm 500gm 1kg

Lauryl Sulfate, Lithium SaltSee Lithium Dodecyl Sulfate, page 249

Lauryl Sulfate, Sodium SaltSee Sodium Dodecyl Sulfate, page 286

LB Agar, Ready-Made PowderForm: Luria-Bertani Agar. Off-white free flowing

powder.pH (3.5%, H

2O): 7.0 ± 0.2

Contents: Casein Peptone: 10 gm/L Yeast Extract: 5 gm/L Sodium Chloride: 5 gm/L Agar: 15 gm/LTo use: Dissolve 35 gm powder per liter of

purified water. Autoclave, cool and make plates.

Application: •For the propagation of bacteria

75851 250gm 1kg

Biochemicals

Biochemicals


LB Broth, Ready-Made PowderForm: Luria-Bertani Broth. Off-white free flowing

powder.pH (2.0%, H

2O): 7.0 ± 0.2

Contents: Casein Peptone: 10 gm/L Yeast Extract: 5 gm/L Sodium Chloride: 5 gm/LTo use: Dissolve 20 gm powder per liter of

purified water. Autoclave.Application: •For the propagation of bacteria

75852 250gm 1kg

r-LDHSee Lactate Dehydrogenase, Recombinant,

page 245

LecithinSource: Egg YolkCAS #8002-43-5

18225 25gm 100gm

LecithinSource: SoybeanPRODUCT SPECIFICATIONSForm: Off-white to light tan granular powderMoisture: ≤ 1.5% (at time of packaging)Acetone Insolubles: ≥ 95.0%Hexane Insolubles: ≤ 0.3%CAS #8002-43-5

18245 500gm 1kg

Leptomycin A

25109

Leptomycin BC

33H

48O

6

Formula Weight: 540.73Form: Leptomycin B is an antifungal antibiotic

that blocks CRM1 mediated nuclear export of proteins containing Nuclear Export Signal (NES). It inactivates CRM1 by covalently modifying the sulfhydryl residue of Cysteine-529. This inhibits the formation of a complex between CRM1, Ran, and a protein with a NES. This results in the nuclear retention of the NES-bearing protein(1). Inhibiting the CRM1-mediated nucleo-cytoplasmic export of proteins bearing a NES produces the nuclear accumulation of a large number of proteins(2) such as Actin, c-Abl, Cdc25, Cyclin B1, HDM2, HIV-1, IΚBα and p53.

References1. Kudo, N., Matsumori, N., Taoka, H., Fujiwara,

D., Schreiner, E. P., Wolff, B., Yoshida, M. and Horinouchi, S. (1999) Proc. Natl. Acad. Sci. USA 96, 9112-9117.

2. Lain, S., Xirodimas, D. and Lane, D. (1999) Experimental Cell Research 253, 315-324.

CAS #87081-35-4

25110 1µg

D-LeucineC

6H

13O

2N


18265 5gm 25gm

DL-Leucine(CH

3)2CHCH

2CH(NH

2)COOH

Formula Weight: 131.17PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (as is)Identity: By IRChromatography (TLC): HomogeneousLoss on Drying: ≤ 0.3%CAS #328-39-2

18270 25gm 100gm 1kg

L-LeucineC

6H

13NO

2

Formula Weight: 131.17PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 101.5%Identity: By IR[α]20

D : +14.5° to +16.5° (c=4 in 6N HCl dry

basis)Loss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.1%Lead (Pb): ≤ 10 ppmHeavy Metals (Pb): ≤ 20 ppmCAS #61-90-5

18280 50gm 100gm 1kg 5kg

Leucine Aminopeptidase(E.C.3.4.11.1)Form: Suspension in 70% saturated ammonium

sulfateUnit Definition: One unit hydrolyzes 1 µmol of

L-leucinamide/min at 25°C, pH 8.5.Storage: 4°C CAS #9001-61-0

18260

L-Leucyl-glycylglycineC

10H

19N

3O

4

Formula Weight: 245.28PRODUCT SPECIFICATIONSForm: White to off-white powderIdentity: By IRChromatography (TLC): HomogeneousStorage: -20°C, protect from moisture

18350 100mg 500mg 1gm 5gm

Bioc

hem

ical

sBiochemicals

8� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Leupeptin

ULTRAPUREC

20H

38N

6O

4•1⁄2 H

2SO

4•H

2O

Formula Weight: 493.61Form: White powder[α]20

D : -82.3° ± 3.0°(c=0.2, H

2O)

Moisture (KF): ≤ 4.0%Applications:•Leupeptin, a protease inhibitor, will

strongly inhibit Trypsin, Papain, Plasmin, Thrombokinase, Kallikrein and Cathepsin B. The half-maximal inhibitory concentration ranges from 0.5 to 75 µg/ml, depending on the enzyme and the substrate.

•Leupeptin does not inhibit Chymotrypsin, Elastase, Renin, or Pepsin.

Storage: -20°CCAS #55123-66-5

18413 1mg 5mg 25mg 100mg

Lima Bean Trypsin InhibitorSource: Lima BeanForm: Lyophilized, salt freeActivity: One mg inhibits at least 2.2 mg Trypsin.Storage: 4°C

18430 100mg 500mg 1gm

Linoleic AcidC

18H

32O

2

Formula Weight: 280.45PRODUCT SPECIFICATIONSForm: Clear, colorless oilAssay: ≥ 99.5% (By GC)Storage: -20°C, vacuum sealed ampules, under

inert gas.CAS #60-33-3

18455 1gm 5gm 10gm 25gm

Linoleic Acid Methyl EsterC

19H

34O

2

Formula Weight: 294.47PRODUCT SPECIFICATIONSForm: Clear, colorless liquidPurity: ≥ 99.0%Storage: 4°CCAS #112-63-0

18465 1gm 5gm

Lipase(E.C.3.1.1.3)Source: Porcine PancreasPRODUCT SPECIFICATIONSForm: Powder purified by modification of method

of Verger, et al., (1969) Biochem. Biophys. Acta, 188, 272. Standardized with Lactose.

Activity: Approx. 100 units/mg protein, standardized to 16 units/mg powder

Unit Definition: One unit liberates 100 µmol of fatty acid per hour from olive oil emulsion at 37°C, pH 7.8.

Contaminating Activity: α-Amylase: ≤ 0.05 units/mg powderStorage: 4°C

18480 1gm 5gm 10gm

Lipase(E.C.3.1.1.3)Source: Porcine PancreasPRODUCT SPECIFICATIONSForm: Stabilized powderActivity: ≥ 24 USP units/mgLoss on Drying: ≤ 6.0%Unit Definition: One unit liberates 1 µmol of fatty

acid/min from olive oil at 37°C, pH 9.0.

18485 100gm 500gm

Lipase(E.C.3.1.1.3)Source: Chromobacterium viscosumPRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: ≥ 400 units/mg proteinProtein: 500 ± 250 µg/mg powderKCl: 500 ± 250 µg/mg powderUnit Definition: One unit liberates 1 µmol of fatty

acid/min at 37°C, pH 7.0.Storage: -20°CCAS #9001-62-1


DL- -Lipoic Acid(DL-6,8-Thioctic Acid)

C8H

14O

2S

2

Formula Weight: 206.33PRODUCT SPECIFICATIONSForm: Light yellow crystalline powderAssay: ≥ 98.0% (dry basis)Identity: Passes testLoss on Drying: ≤ 0.5%Storage: In tight, light-resistant containersCAS #1077-28-7

18505 1gm 5gm 25gm 50gm 100gm

Lipoxidase(E.C.1.13.11.12)Source: SoybeanForm: Lyophilized powderUnit Definition: One unit causes an increase

in the extinction at 234 nm of 0.001/min at 25°C, pH 9.0.

Storage: -20°CCAS #9029-60-1

18510 200mg 1gm

Lissamine Rhodamine B-200C

27H

29N

2O

6S

2Cl

Formula Weight: 577.11PRODUCT SPECIFICATIONSForm: Purple powderForm: Fluorescent protein stain at a

concentration of 5% on CeliteCAS #3520-42-1

18515 1gm 5gm

Lithium Chloride (LiCl), 7.5M Solution

ULTRAPUREMB GradeForm: 7.5M solution of lithium chloride (LiCl) in

high purity dH2O. Solution is 0.2 µm filtered



75902 100ml

Biochemicals

Biochemicals


Lithium ChlorideACS Reagent GradeLiClFormula Weight: 42.39PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99%Insoluble Matter: ≤ 0.01%Titratable Base: ≤ 0.008 meq/gLoss on Drying : ≤ 1.0%Nitrate (NO

3): ≤ 0.001%


Barium (Ba): ≤ 0.003%Heavy Metals (Pb): ≤ 0.002%Iron (Fe): ≤ 0.001%Calcium (Ca): ≤ 0.01%Potassium (K): ≤ 0.01%Sodium (Na): ≤ 0.20%CAS #7447-41-8

18516 500gm 2.5kg

Lithium ChlorideReagent GradeLiClFormula Weight: 42.39PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99%Loss on Drying: ≤ 0.6%Insoluble (in HCI): ≤ 0.005%Alkalinity (as Li

2CO

3): ≤ 0.03%

Sodium Chloride (NaCI): ≤ 0.015%Calcium Chloride (CaCI

2): ≤ 0.03%

Iron Oxide (Fe2O

3): ≤ 0.002%

Sulfate (SO4): ≤ 0.006%

CAS #7447-41-8

18527 100gm 500gm

Lithium Dodecyl Sulfate(Lithium Lauryl Sulfate)

ULTRAPURECH

3(CH

2)11

OSO3Li

Formula Weight: 272.33PRODUCT SPECIFICATIONSAssay (acidity): ≥ 98%Assay (C

12 by GC): ≥ 98%

A (230 nm, 3%, 1 cm): ≤ 0.2A (280 nm, 3%, 1 cm): ≤ 0.1Loss on Drying: ≤ 1%Chloride (Cl): ≤ 0.01%Copper (Cu): ≤ 5 ppmIron (Fe): ≤ 1 ppmLead (Pb): ≤ 5 ppmCAS #2044-56-6

32816 5gm 25gm 100gm

Lithium LactateSee DL-Lactic Acid-Lithium Salt or L-(+)-Lactic

Acid Lithium Salt, page 246

Lithium Lauryl SulfateSee Lithium Dodecyl Sulfate, page 249

LitmusPRODUCT SPECIFICATIONSForm: Dark blue granulespH (0.01%, H

2O): 7 - 10

Visual Transition Interval: pH 8.3 - Blue pH 4.5 - RedCAS #1393-92-6

18525 25gm 100gm

Liver Desiccated-DefattedSource: BovineCAS #8002-47-9

18533 1lb 5lb 25lb 100lb

D-Luciferin

ULTRAPUREC

11H

8O

3S

2N

2

Source: SyntheticFormula Weight: 280.32PRODUCT SPECIFICATIONSForm: Lyophilized crystalline powderStorage: -20°C, protect from moisture.CAS #2591-17-5

18567 1mg 5mg 50mg

Luminol(3-Aminophthalhydrazide)

C8H

7N

3O

2

Formula Weight: 177.16PRODUCT SPECIFICATIONSForm: Off-white to yellowish powderAssay: ≥ 98%Identity: By IRMoisture (KF): ≤1%Solubility (2%, 1N NaOH): Passes testResidue on Ignition: ≤ 2%

18574 5gm 25gm

Luria Agar, Ready-Made PowderForm: Off-white free flowing powderpH (4.0%, H

2O): 7.0 ± 0.2

Contents: Casein Peptone: 10 gm/L Yeast Extract: 5 gm/L Sodium Chloride: 10 gm/L Agar: 15 gm/LTo use: Dissolve 40 gm powder per liter of


Application: •For the propagation of bacteria

75853 250gm 1kg

Bioc

hem

ical

sBiochemicals

86 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Luria Broth, Ready-Made PowderForm: Off-white free flowing powderpH (2.5%, H

2O): 7.0 ± 0.2

Contents: Casein Peptone: 10 gm/L Yeast Extract: 5 gm/L Sodium Chloride: 10 gm/LTo use: Dissolve 25 gm powder per liter of

purified water. Autoclave.Application: •For the propagation of bacteria

75854 250gm 1kg

Luteinizing Hormone Releasing Factor LRF

C55

H75

N17

O13

Formula Weight: 1182.29Source: Synthetic PeptidePyroglu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-

NH2

CAS #33515-09-2

18566 1mg 5mg 25mg

L-Lysine, MonohydrateC

6H

14N

2O

2•H

2O

Formula Weight: 164.20PRODUCT SPECIFICATIONSForm: White to pale yellow crystalline powderAssay: ≥ 98.5%Identity: By IRChromatography (TLC): Homogeneous[α]20

D : +25.5° to +27.0° (c=8 in 6N HCl)

Moisture (KF): 10.0 to 11.5%Heavy Metals: ≤ 10 ppmStorage: -20°CCAS #39665-12-8

18581 5gm 100gm

D-Lysine, HydrochlorideNH

2(CH

2)4CH(NH

2)COOH•HCl


18575 500mg 1gm 5gm 10gm 25gm

DL-Lysine, HydrochlorideNH

2(CH

2)4CH(NH

2)COOH•HCl

Formula Weight: 182.65Form: White crystalline powderAssay: ≥ 98%Identity: By IRChromatography (TLC): HomogeneousCAS #70-53-1

18580 25gm 100gm 1kg

L-Lysine, DihydrochlorideNH

2(CH

2)4CH(NH

2)COOH•2HCl

Formula Weight: 219.11PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98.5%Identity: By IRChromatography (TLC): Homogeneous[α]20

D : +15° to +17° (c=2 in H

2O)

CAS #657-26-1

18595 25gm 100gm

L-Lysine, HydrochlorideNH

2(CH

2)4CH(NH

2)COOH•HCl

Formula Weight: 182.65PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IR[α]20

D : +19.0 to +21.5° (c=8 in 6N HCl)


4): ≤ 0.02%

Arsenic (As2O

3): ≤ 1 ppm

Iron (Fe): ≤ 20 ppmSulfate (SO

4): ≤ 0.03%

CAS #657-27-2

18585 1kg 5kg 10kg

Lysozyme

ULTRAPURE(E.C.3.2.1.17)Source: Chicken Egg WhitePRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: Approximately 20,000 units/mgUnit Definition: One unit causes a decrease in

absorbance of 0.001 per min at 450 nm, 25°C and pH 7.0 with Micrococcus lysodeikticus as a substrate.

Moisture: ≤ 6.0%Chloride: 3.2 - 4.2%pH (2%, H

2O): 3.0 - 4.0

Storage: -20°C, desiccated

18645 1gm 5gm 10gm 25gm 100gm

M13mp8, Single-Stranded DNASee Molecular Biology Products & Kits Section,

page 92

M13mp18, Single-Stranded DNASee Molecular Biology Products & Kits Section,

page 92

Magnesium Chloride (MgCl2), 1M Solution

ULTRAPUREMB GradeForm: 1M solution of magnesium chloride (MgCl

2)

in high purity dH2O. Solution is 0.2 µm filtered

and dispensed into vials and/or durable, square Nalgene bottles.

Contaminant Testing: Heavy Metals(Pb): ≤ 5 ppm DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test Protease: Passes test

78641 10x1ml 100ml

Biochemicals

Biochemicals


Magnesium Chloride, Hexahydrate

ULTRAPUREACS Reagent GradeMgCl

2•6H

2O

Formula Weight: 203.30PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 102.0%Insoluble Matter: ≤ 0.005%Nitrate (NO

3): ≤ 0.001%


Sulfate (SO4): ≤ 0.002%


Barium (Ba): ≤ 0.005%Calcium: ≤ 0.01%Manganese (Mn): ≤ 5 ppmPotassium (K): ≤ 0.005%Sodium (Na): ≤ 0.005%Strontium (Sr): ≤ 0.005%Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 5 ppmCAS #7791-18-6

18641 500gm 1kg

Magnesium Sulfate, HeptahydrateACS Reagent GradeMgSO

4•7H

2O


2O, 25°C): 5.0 - 8.2

Insoluble Matter: ≤ 0.005%Chloride (Cl): ≤ 5 ppmNitrate (NO

3): ≤ 0.002%


Calcium (Ca): ≤ 0.02%Manganese (Mn): ≤ 5 ppmPotassium (K): ≤ 0.005%Sodium (Na): ≤ 0.005%Strontium (Sr): ≤ 0.005%Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 5 ppmCAS #10034-99-8

18651 500gm 1kg 5kg

Magnesium Sulfate, HeptahydrateUSBioAnalyzedMgSO

4•7H

2O

Formula Weight: 246.47PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 100.5% (anhydrous by ignition)Identity: Passes testspH (5%, H

2O): 5.0 - 9.2

Loss on Ignition: 40.0 - 52.0%Chloride (Cl): ≤ 0.014%Iron (Fe): ≤ 20 ppmHeavy Metals (Pb): ≤ 0.001%Selenium (Se) : ≤ 0.003%O.V.I.: Meets the requirements

18664 100gm 500gm 2.5kg

Malate DehydrogenaseSource: Candida utilis(E.C.1.1.1.37)PRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: ≥ 1,000 units/mg proteinContaminating Activities: NADH Oxidase: ≤ 0.001% Glutamate Dehydrogenase: ≤ 0.001% LDH : ≤ 0.01% Fumarase: ≤ 0.01% GOT: ≤ 0.01%Storage: -20°C desiccated

18677

Malate Dehydrogenase, Lyophilized(E.C.1.1.1.37)Source: Porcine Heart (Mitochondrial)PRODUCT SPECIFICATIONSForm: Lyophilized powder, ammonium sulfate freeActivity: ≥ 1,100 units/mg protein.Protein: 10 - 50%Unit Definition: One unit causes the oxidation of

1 µmol of NADH/min at 25°C, pH 7.4.Contaminating Activities: Fumarase (L-Malate): ≤ 0.01% LDH: ≤ 0.01% GOT: ≤ 0.01% GDH (NAD): ≤ 0.002% NADH Oxidase: ≤ 0.001%Note: The above product is available in

manufacturing quantities as a lyophilized powder, an ammonium sulfate suspension or a glycerol solution. Please inquire for bulk pricing.

Storage: -20°CCAS #9001-64-3


Malate Dehydrogenase, Suspension(L-Malate:NAD Oxidoreductase)

(E.C.1.1.1.37)Source: Porcine Heart (Mitochondrial)PRODUCT SPECIFICATIONSForm: Ammonium sulfate suspensionActivity: ≥ 1,500 units/mg proteinUnit Definition: One unit causes the oxidation of

1 µmol of NADH/min at 25°C, pH 7.4.Contaminating Activities: Fumarase (L-Malate): ≤ 0.001% LDH (NADH): ≤ 0.001% GOT: ≤ 0.001% GDH (NAD): ≤ 0.001% Creatine Kinase: ≤ 0.001% GPT: ≤ 0.001%Note: The above product is available in

manufacturing quantities as a lyophilized powder, an ammonium sulfate suspension, or a glycerol solution. Please inquire for bulk pricing.

Storage: 4°C, do not freeze


Bioc

hem

ical

sBiochemicals

88 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Malate Dehydrogenase, Recombinant(r-MDH)

(E.C.1.1.1.37)Host cell: E.coliPRODUCT SPECIFICATIONSForm: Lyophilized powder, ammonium sulfate freeSpecific Activity: ≥ 200 units/mg proteinUnit Definition: One unit is defined as 1 µmol of

NAD+ production per minute under the assay conditions (25°C, pH 7.5).

Protein (per mg of powder): 300 ± 200 µgPotassium Phosphate (per mg of powder): 700

± 200 µgContaminating Activities: Fumarase (L-Malate): ≤ 0.010% Lactate Dehydrogenase: ≤ 0.010% Glutamate Dehydrogenase: ≤ 0.010% NADH Oxidase: ≤ 0.001% Glutamic-Oxaloacetic Transaminase (GOT)*: ≤ 0.001%

*GOT activity includes α-hydroxyglutarate dehydrogenase activity


26113 1,000units

Maleic Acid(Toxilic Acid)

Reagent GradeC

4H

4O

4

Formula Weight: 116.07PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 101.0% (dry basis)Identity: By IRSolubility (50%, H


Moisture (KF): ≤ 2.0%Iron (Fe): ≤ 5 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #110-16-7

18685 500gm 1kg

DL-Malic AcidHOOCCH(OH)CH

2COOH

Formula Weight: 134.09PRODUCT SPECIFICATIONSForm: White granular powderAssay: ≥ 98% (as is)Identity: By IRMoisture (KF): ≤ 1.0%CAS #617-48-1

18695 1kg

L-Malic AcidC

4H

6O

5

Formula Weight: 134.09PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (GC): ≥ 99%Identity: By IR[α]20

D : -26.5° to -30.0° (c=5.5 in pyridine)

Melting Point: 102 - 106°CMoisture (KF): ≤ 1.0%CAS #97-67-6

18700 100gm 500gm 1kg

Malonic Acid, Free Acid(Propanedioic Acid)

C3H

4O

4


18705 100gm 250gm 500gm 1kg

MaltaseSee α-D-Glucosidase, page 231

Maltose, MonohydrateHigh Purity GradeC

12H

22O

11•H

2O

Formula Weight: 360.31PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98%Identity: By IR[α]20

D : +130.4° ± 1.3° (c=4 in H

2O, NH

4OH)

Solubility (10%, H2O): Passes test

Loss on Drying: ≤ 6%Residue on Ignition: ≤ 0.05%Dextrins: Passes testArsenic (As): ≤ 0.5 ppmIron (Fe): ≤ 5 ppmHeavy Metals (Cu): ≤ 10 ppmCAS #6363-53-7

18724 100gm 500gm 1kg

D-(+)-Maltose, MonohydrateC

12H

22O

11•H

2O


D : +130.0° ± 2.0° (c=4 in H

2O, NH

3)

Loss on Drying: ≤ 6% (to constant wt. at 100°C and not more than 0.5mm Hg)

Water-Insoluble Material: Passes testDextrins: Passes testResidue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 10 ppmIron (Fe): ≤ 5 ppmArsenic (As): ≤ 0.5 ppmCAS #6363-53-7

18726 100gm 500gm 1kg

D-(+)-Maltose, MonohydrateC

12H

22O

11•H

2O

Formula Weight: 360.31PRODUCT SPECIFICATIONSForm: White to off-white powderMaltose Content: ≥ 92.0% (dry basis)Glucose Content: ≤ 3.0% (dry basis)Loss on Drying: ≤ 7.0%Heavy Metals (Pb): ≤ 5 ppmCAS #6363-53-7

18725 500gm 1kg 5kg

MaltotrioseC

18H

32O

16

Formula Weight: 504.44 PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 97%Identity: By IR[α]20

D : +165 ± 1° (c=3 in H

2O)

Moisture: ≤ 5%

18730 1gm 5gm 25gm

Biochemicals

Biochemicals


DL-Mandelic Acid(DL-α-Hydroxyphenylacetic Acid)

C8H

8O

3


18745 100gm 500gm

Manganese Chloride (MnCl2), 1M Solution

ULTRAPUREMB GradeForm: 1M solution of manganese chloride (MnCl

2)

in high purity dH2O. Solution is 0.2 µm filtered

and dispensed into vials and/or durable, square Nalgene bottles.

Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test Protease: Passes test

75887 10x1ml 100ml

Manganese Chloride, Tetrahydrate

ULTRAPUREACS Reagent GradeMnCl

2•4H

2O

Formula Weight: 197.91PRODUCT SPECIFICATIONSForm: Pale pink crystalline powderAssay: 98.0 - 101.0%pH (5%, H

2O, 25°C): 3.5 - 6.0

Insoluble Matter: ≤ 0.005%Sulfate (SO

4): ≤ 0.005%

Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 5 ppmCalcium (Ca): ≤ 0.005%Magnesium (Mg): ≤ 0.005%Potassium (K): ≤ 0.01%Sodium (Na): ≤ 0.05%Zinc (Zn): ≤ 0.005%CAS #13446-34-9

18753 100gm 250gm

Manganese Sulfate MonohydrateACS Reagent GradeMnSO

4•H

2O

Formula Weight: 169.02PRODUCT SPECIFICATIONSForm: Pink to almost white crystalline powderAssay 98.0 - 101.0%Loss on Ignition: 10.0 - 12.0%Substances Reducing Permanganate: Passes testInsoluble Matter: ≤ 0.01%Chloride (Cl): ≤ 0.005%Calcium (Ca): ≤ 0.005%Magnesium (Mg): ≤ 0.005%Nickel (Ni): ≤ 0.02%Potassium (K): ≤ 0.01%Sodium (Na): ≤ 0.05%Zinc (Zn): ≤ 0.005%Heavy Metals (Pb): ≤ 0.002%Iron (Fe): ≤ 0.002%CAS #10034-96-5

18757 100gm 500gm 2.5kg

MannitolUSBioAnalyzedC

6H

14O

6

Formula Weight: 182.17PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 96.0 - 101.5% (dry basis)Identity: Passes test[α]25

D : +137° to +145° (c=1 in USP prep.)

Melting Point: 164 - 169°CLoss on Drying: ≤ 0.3%Acidity: Passes testReducing Sugars: Passes testChloride (Cl): ≤ 0.007%Sulfate (SO

4): ≤ 0.01%

Arsenic (As): ≤ 1 ppmCAS #69-65-8

18755 500gm 1kg 5kg

D-(+)-MannoseC

6H

12O

6


D : +14.2° ± 0.7° (c=4 in H

2O, NH

3)


18775 25gm 100gm 500gm

Matrilysin, Mature, Recombinant(r-hMMP-7)

Source: Human recombinant from E. coliPRODUCT SPECIFICATIONSForm: Suspension in 10mM HEPES (pH 7.4),

5mM CaCl2, 150mM NaCl

Concentration: Approx. 2 mg/mlSpecific Activity: ≥ 3,100 units/mg proteinMolecular Weight: 19,130 Da calculated from

the amino acid sequence and 20 kDa from SDS-PAGE

Unit Definition: One unit is defined as the digestion of 1 µg Azocoll/min at 37°C.

Storage: -80°C

26114 100µg

r-MbSee Myoglobin, Recombinant, page 260

MBTHSee 3-Methyl-2-Benzothiazolinone Hydrazone,

Hydrochloride, Monohydrate, page 255

r-MDHSee Malate Dehydrogenase, Recombinant,

page 252

Mega-8(N-Octanoyl-N-Methylglucamin)

C15

H31

NO6

Formula Weight: 321.42PRODUCT SPECIFICATIONSForm: White powderAssay (HPLC): ≥ 98%Identity: By IRLoss on Drying: ≤ 0.05%pH (1%, H

2O): 5.0 ± 0.5

Storage: 4°C

18786 1gm 5gm 25gm

Bioc

hem

ical

sBiochemicals

90 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Mega-9(N-Nonanoyl-N-Methylglucamin)

C16

H33

NO6

Formula Weight: 335.44PRODUCT SPECIFICATIONSForm: White powderAssay (HPLC): ≥ 99%Identity: By IRLoss on Drying: ≤ 0.5%pH (1%, H

2O): 5 - 8

Storage: 4°C

18787 1gm 5gm 25gm

α-D-(+)-Melibiose, MonohydrateC

12H

22O

11•H

2O


D : +135.0° ± 2.0° (c=4 in H

2O)

Loss on Drying: ≤ 5.1%Residue on Ignition: ≤ 0.1%Iron (Fe): ≤ 5 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #585-99-9

18805 5gm 10gm 25gm 100gm

Menadione(2-Methyl-1,4-Naphthoquinone; Vitamin K

3 )

USBioAnalyzedC

11H

8O

2

Formula Weight: 172.18PRODUCT SPECIFICATIONSForm: Bright yellow powderAssay: 98.5 - 101.0% (dry basis)Identity (A, B): Passes testsMelting Range: 105 - 107°CLoss on Drying: ≤ 0.3%Residue on Ignition: ≤ 0.1%Ordinary Impurities: Passes testCAS #58-27-5

18815 25gm 100gm 500gm

Menadione, Sodium BisulfiteC

11H

9NaO

5S•3H

2O

Formula Weight: 330.29 (trihydrate)PRODUCT SPECIFICATIONSForm: White powderChromatography (TLC): Purity greater than 98%

as compared to reference material.Identity: By IRMoisture (KF): 9.0 - 13.0%Solubility (1%, H


Storage: -20°C, protect from lightCAS #130-37-0

18820 50gm 100gm 1kg

Menhaden Fish OilSee Fish Oil, Menhaden, page 227

Mercaptoacetic AcidSee Thioglycolic Acid, Sodium Salt, page 297

β-Mercaptoethylamine, Hydrochloride(Cysteamine HCl; Decarboxycysteine)

HSCH2CH

2NH

2•HCl


18825 10gm 25gm 100gm

MES, Anhydrous(2-(N-Morpholino) Ethane Sulfonic Acid)

C6H

13NO

4S


18888 100gm 250gm 1kg

MES, Monohydrate(2-(N-Morpholino) Ethane Sulfonic Acid)

ULTRAPUREHO

3S(CH

2)2(C

4H

8NO)•H

2O

Formula Weight: 213.25PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 6.15 ± 0.15A (250 nm, 1M, 1 cm): ≤ 0.1Moisture (KF): ≤ 11%Iron (Fe): ≤ 30 ppmLead (Pb): ≤ 10 ppmSolubility (1M, H

2O, 100 ml): Clear and colorless

Note: This product varies up to a monohydrate.CAS #4432-31-9

18886 25gm 100gm 1kg

MES, Sodium Salt(2-(N-Morpholino) Ethane Sulfonic Acid, Sodium Salt)

C6H

12NO

4SNa


18893 100gm 250gm 1kg

D-MethionineCH

3S(CH

2)2CH(NH

2)COOH


D : -22.9° to -24.7° (c=2 in 6N HCl)


18905 5gm 25gm 100gm

Biochemicals

Biochemicals


DL-MethionineCH

3SCH

2CH

2CH(NH

2)COOH

Formula Weight: 149.21PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Identity: By IRLoss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Heavy Metals(Pb): ≤ 20 ppmChloride (Cl): ≤ 0.020%Iron (Fe): ≤ 10 ppmSulfate (SO

4): ≤ 0.050%

CAS #59-51-8

18910 200gm 1kg 5kg 10kg 25kg

L-MethionineUSBioAnalyzedC

5H

11NO

2S

Formula Weight: 149.21PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 101.5% (dry basis)Identity: By IRpH (1%, H

2O): 5.6 - 6.1

[α]25D : +22.4° to +24.7° (c=2 in 6N HCl)


4): ≤ 0.03%

Heavy Metals (Pb): ≤ 0.0015%Chloride (Cl): ≤ 0.05%Iron (Fe): ≤ 0.003%Chromatographic Purity: Passes testO.V.I.: Meets requirementsCAS #63-68-3

18915 25gm 100gm 1kg 5kg

Methotrexate(Amethopterin; 4-Amino-10-Methyl Folic Acid)

C20

H22

N8O

5•nH

2O


PRODUCT SPECIFICATIONSForm: Yellow/orange crystalline powderIdentity: By IRAssay (306 nm, 0.1N HCl): ≥ 96.0% (dry basis)Assay (259 nm, 0.1N NaOH): ≥ 96.0% (dry basis)Assay (HPLC): ≥ 98.0%Residue on Ignition: ≤ 0.1%Moisture (KF): ≤ 12.0%Application: •Used as a competitive inhibitor of Dihydrofolate

Reductase (DHFR)Storage: 4°CCAS #59-05-2

18970 25mg 100mg 500mg 1gm

3-Methyl-2-Benzothiazolinone Hydrazone, Hydrochloride, Monohydrate(MBTH)

C8H

9N

3S•HCl•H

2O

Formula Weight: 233.72PRODUCT SPECIFICATIONSForm: Slightly yellow crystalline powderAssay: ≥ 98%Identity: By IRCAS #38894-11-0

19025 5gm 10gm 25gm

Methylene Blue, Trihydrate(Methylthionine Chloride)

(C.I.52015)C

16H

18ClN

3S•3H

2O

Formula Weight: 373.90PRODUCT SPECIFICATIONSForm: Dark green crystalline powderAssay: 98.0 - 103.0% (dry basis)Identity: By IRλ

max: 664 nm ± 1

Solubility (1%, H2O): Passes test

pH (1%, H2O): 3.6 - 4.5

Moisture (KF): 8.0 - 18.0%Application:•Used in staining RNA that is bound to nylon

and nitrocellulose membranes. Methylene blue is the stain of choice in visualizing filter bound RNA over a pre-transfer gel stain with ethidium bromide. Ethidium bromide saturates the nucleic acids and reduces the efficiency of RNA transfer.

Typical Procedure:1. Soak the dried filter in 5% acetic acid at room

temperature for 15 minutes.2. Place the filter in 0.5M sodium acetate (pH

5.2) and 0.04% methylene blue for 5-10 minutes at room temperature.

3. Rinse the filter in water for 5-10 minutes.CAS #61-73-4

19220 25gm 100gm 500gm

N,N'-Methylene-bis-Acrylamide(bis-Acrylamide)

ULTRAPUREMB Grade(CH

2=CHCONH)

2CH

2

Formula Weight: 154.17PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.9%Identity: By IRA (290 nm, 1%, 1 cm): ≤ 0.2pH (1%, H

2O): ≥ 5.5

Acrylic acid: ≤ 0.02%Lead (Pb): ≤ 1 ppmGel Performance: Passes testApplication:•Cross-linking agent used in forming

polyacrylamide gels. The porosity of the gel is determined by the chain length and the degree of cross-linking. Most sequencing gels use a ratio of 1 molecule of cross-linker for every 19 monomers of acrylamide.

CAS #110-26-9

75821 25gm 50gm 100gm 1kg

Bioc

hem

ical

sBiochemicals

9� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Methyl- -D-Glucopyranoside(α-Methyl-D-Glucoside)

C7H

14O

6


D : +156° to +160° (c=10 in H

2O)

Loss on Drying: ≤ 1%CAS #97-30-3

19065 100gm 500gm

Methyl-β-D-Glucopyranoside(Methyl-β-D-Glucoside)

C7H

14O

6


D : -33.7° to -34.7° (c=10 in H

2O, dry basis)

Moisture (KF): ≤ 5.0%CAS #709-50-2

19066 5gm 10gm 50gm

Methyl Green, Zinc Chloride Salt(C.I.42590)C

27H

35Cl

2N

3•ZnCl

2

Formula Weight: 608.81Applications:•For differentiation of DNA and RNA(1)

•A DNA stain in electrophoresis(2)

References:1. Kurnick, N. B., (1952) Stain Technol., 27,

233-242.2. Cutting, J. A. and Roth, T. F., (1973) Anal.

Biochem., 54, 386-394.CAS #7114-03-6

32818 25gm

Methyl-α-D-MannopyranosideC

7H

14O

6


19115 10gm 25gm 100gm

2-Methyl-1,4-NapthoquinoneSee Menadione, page 254

Methyl OrangeACS Reagent GradeC

14H

14N

3NaO

3S

Formula Weight: 327.33PRODUCT SPECIFICATIONSForm: Dark orange powderClarity of Solution: Passes testVisual Transition Interval: pH 3.2 - Pink pH 4.4 - YellowCAS #547-58-0

19150 25gm 100gm

Methyl Paraben(p-Hydroxybenzoic Acid Methyl Ester)(Methyl-p-Hydroxybenzoate)

C8H

8O

3

Formula Weight: 152.15PRODUCT SPECIFICATIONSForm: White powderIdentity: By IRMelting Point: 125 - 128°CMoisture (KF): ≤ 0.5%CAS #99-76-3

19160 100gm 1kg

Methyl Red, Sodium SaltWater solublePRODUCT SPECIFICATIONSForm: Dark orange powderInsoluble Matter: Passes testVisual Transition Interval: pH 4.2 - Pink pH 6.2 - YellowCAS #845-10-3

19165 25gm 100gm

5-Methyl-2'-Deoxycytidine-5'-Monophosphate, Disodium Salt(5-Methyl dCMP)

C10

H14

N3O

7PNa

2

Formula Weight: 365.19 (anhydrous)PRODUCT SPECIFICATIONSForm: White powderAssay (HPLC, as nucleotide): ≥ 98%Assay (HPLC, as nucleoside): ≥ 98%Moisture (KF): ≤ 16%Phosphorylated Nucleosides:≤ 0.20% dCMP≤ 0.049% for any other phosphorylated

nucleosideStorage: -20°C, protect from moisture

19184 100mg

4-Methylumbelliferone(7-Hydroxy-4-Methylcoumarin, Hymecromone)

C10

H8O

3


19211 5gm

4-Methyl Umbelliferyl AcetateC

12H

10O

4

Formula Weight: 218.21PRODUCT SPECIFICATIONSForm: White crystalline flakesIdentity: By IRChromatography (TLC): HomogeneousMoisture: ≤ 1.0%Storage: -20°C

19203 5gm 10gm

4-Methylumbelliferyl-α-L-Iduronide, Sodium Salt

C16

H15

NaO9


33230 5mg

Biochemicals

Biochemicals


4-Methylumbelliferyl-N-Acetyl- -D-Galactosaminide(4-Methylumbelliferyl-2-Acetamido-2-Deoxy-β-D-Galactopyranoside)

C18

H21

NO8


33216 25mg 100mg 250mg 1gm

4-Methylumbelliferyl-N-Acetyl-β-D-Glucosaminide(4-Methylumbelliferyl-2-Acetamido-2-Deoxy-β-D-Glucopyranoside)

C18

H21

NO8


33200 25mg 100mg 250mg 1gm

2'-(4-Methylumbelliferyl)-α-D-N-Acetylneuraminic Acid, Sodium Salt

C21

H24

NNaO11


33202

4-Methylumbelliferyl-α-L-Arabinopyranoside

C15

H16

O7


33204 25mg 100mg 1gm

4-Methylumbelliferyl Caprylate(Octanoic Acid 4-Methylumbelliferyl Ester)

C18

H22

O4


19204

4-Methylumbelliferyl- -D-CellobiosideC

22H

28O

13


33206 100mg 500mg

4-Methylumbelliferyl-α-L-Fucopyranoside

C16

H18

O7


33218 5mg 10mg 25mg

4-Methylumbelliferyl-β-D-Fucopyranoside

C16

H18

O7


33222 10mg 25mg

4-Methylumbelliferyl-β-L-Fucopyranoside

C16

H18

O7


33224 10mg

4-Methylumbelliferyl-α-D-Galactopyranoside

C16

H18

O8


33209 25mg 100mg 250mg

4-Methylumbelliferyl- -D-Galactopyranoside

C16

H18

O8


19209 250mg 1gm 5gm

4-Methylumbelliferyl-α-D-Glucopyranoside

C16

H18

O8


33212 25mg 100mg 250mg 1gm

4-Methylumbelliferyl-β-D-Glucopyranoside

C16

H18

O8


33214 250mg 500mg 1gm 5gm

4-Methylumbelliferyl-β-D-Glucuronide Dihydrate(MUG)

C16

H16

O9•2H

2O

Formula Weight: 388.32PRODUCT SPECIFICATIONSForm: White to off-white powderIdentity: By IRChromatography (TLC): HomogeneousMelting Point (Fisher-Johns): 142-150°CMoisture (KF): 9.6-14.8%Storage: -20°C, desiccated, protected from lightCAS #6160-80-1

19208 100mg 500mg 1gm

Bioc

hem

ical

sBiochemicals

9� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

4-Methylumbelliferyl Myo-Inositol-1-Phosphate, N-Methyl-Morpholine Salt

C16

H19

O11

P•C5H

11NO


33290

4-Methylumbelliferyl-α-D-Mannopyranoside

C16

H18

O8


33226 10mg 25mg 100mg

4-Methylumbelliferyl-β-D-Mannopyranoside

C16

H18

O8


33220 10mg 25mg 100mg 250mg

4-Methylumbelliferyl Nonanoate(Nonanoic Acid 4-Methylumbelliferyl Ester)

C19

H24

O4


33291

4-Methylumbelliferyl Palmitate(Palmitic Acid 4-Methylumbelliferyl Ester)

C26

H38

O4


33292

4-Methylumbelliferyl Phosphate, Free Acid

C10

H9O

6P


23006

4-Methylumbelliferyl Phosphate, di(2-Amino-2-Methyl-1,3-Propanediol) Salt

C10

H9O

6P•2 C

4H

11NO

2


33293

4-Methylumbelliferyl Phosphate, Dicyclohexylammonium Salt

C10

H9O

6P•2C

6H

13N


33294

4-Methylumbelliferyl Phosphate, Dilithium Salt

C10

H7O

6PLi

2


33295

4-Methylumbelliferyl Phosphate, Disodium Salt

C10

H7O

6PNa

2•nH

2O


Storage: -20°CCAS #22919-26-2

19202 250mg 500mg 1gm

4-Methylumbelliferyl- -D-Xylopyranoside

C15

H16

O7


33228 25mg 100mg 250mg 1gm

Methyl VioletPRODUCT SPECIFICATIONSForm: Green crystalline powderInsoluble Matter: Passes testVisual Transition Interval: pH 1.40 - Blue pH 0.80 - Blue-green pH 0.20 - Yellow-greenCAS #8004-87-3

19210 100gm 500gm

DL-Mevalonic Acid LactoneC

6H

10O

3


19230 1gm 5gm 10gm

Micrococcus LysodeikticusForm: Sprayed dried cells suitable as lysozyme

substrate

19240 5gm

Biochemicals

Biochemicals


B2 Microglobin, Recombinant(r-B2M)

Source: Human recombinantFormula Weight: 11,762, determined by amino

acid sequencePRODUCT SPECIFICATIONSForm: Suspension in phosphate-buffered saline

(pH 7.4) containing 0.05% NaN3

Concentration: 1 mg/mlPurity: Single band at about 12k, as determined

by SDS-PAGE under reducing conditionsStorage: 4°C for frequent use, -20°C for long

term storage

26000 500µg 1mg

Milk Powder-Whole

19242 5lb 25lb

Mineral Oil

ULTRAPUREMB GradePRODUCT SPECIFICATIONSForm: Clear, colorless oilIdentity: By IRSpecific Gravity (25°C): 0.818 to 0.880Viscosity (40°C): ≤ 33.5 centistokesNeutrality: Passes testReadily Carbonizable Substances: Passes testLimit of Polynuclear Compounds: Passes testSolid Paraffin: Passes testUse Test: Functionally tested for use in PCRCAS #8042-47-5

71600 10ml 25ml 1L

r-hMMP-7See Matrilysin, Mature, Recombinant, page 253

Monosodium GlutamateSee Glutamic Acid, Monosodium Salt, page 232

MOPS(3-[N-Morpholino]propanesulfonic Acid)

ULTRAPUREHO

3S(CH

2)3(C

4H

8NO)

Formula Weight: 209.26PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 7.20 ± 0.15A (250 nm, 1M, 1 cm): ≤ 0.1Loss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Chloride (Cl): ≤ 0.01%Sulfate (SO

4): ≤ 0.02%


19256 50gm 100gm 1kg

MOPS Sodium SaltC

7H

14NO

4SNa

Formula Weight: 231.25PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 7.20 ± 0.15A (260 nm, 1M, 1 cm): ≤ 0.1Loss on Drying: ≤ 0.5%Chloride (Cl): ≤ 0.01%Sulfate (SO

4): ≤ 0.02%

Iron (Fe): ≤ 5 ppmLead (Pb): ≤ 10 ppm

19268 100gm 250gm 1kg

MTT(3-[4,5-Dimethyl-2-Thiazolyl]-2,5-Diphenyl Tetrazolium Bromide; Thiazolyl Blue Tetrazolium Bromide)

ULTRAPUREC

18H

16BrN

5S

Formula Weight: 414.32PRODUCT SPECIFICATIONSForm: Yellow powderChromatography (TLC): HomogeneousIdentity: By IRSolubility: Passes testSensitivity: Passes testMelting Point: ≥ 192°CApplications:•Used in the quantitation of DNA synthesis•Detects living and growing cells. MTT is cleaved

by active mitochondria to form a dark blue formazan product.

CAS #298-93-1

19265 250mg 500mg 1gm 5gm 10gm

MTT Formazan(3-[4,5-Dimethyl Thiazolyl-2]-2,5-Diphenyl Formazan)

C18

H17

N5S


19260 100mg 1gm

MucinSource: Bovine Submaxillary GlandsForm: Dry powder by the method of Nisizawa and

Pigman, (1959) Arch. Ora. Biol., 1, 161.Substrate for neuraminidase.Storage: 4°C

19275 100mg 500mg

MyoglobinSource: Equine HeartPRODUCT SPECIFICATIONSForm: Red-brown lyophilized powderAssay: (SDS Electrophoresis): ≥ 90%Moisture: ≤ 10%Iron: ≥ 0.2%Storage: -20°C, desiccatedCAS #100684-32-0

19285 250mg 1gm

Bioc

hem

ical

sBiochemicals

96 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Myoglobin, Recombinant(r-Mb)

Source: Human Recombinant from E. coliFormula Weight: 11,670 for mature form and

17,801 for immature form, determined by amino acid sequence

PRODUCT SPECIFICATIONSForm: Suspension in phosphate-buffered saline

(pH 7.4) containing 0.05% NaN3.

Concentration: 2 mg/mlPurity: Single band at about 17.5k, as determined

by SDS-PAGE under reducing conditions; the mature and immature forms rMb are indistinguishable from each other

Storage: 4°C, Do not freeze

26003 1mg 5mg

Myo-InositolSee Inositol, page 242

Myristic Acid(Tetradecanoic Acid)

CH3(CH

2)12

COOHFormula Weight: 228.38CAS #544-63-8

19310 100gm 500gm

β-NADSee Nicotinamide Adenine Dinucleotide, page 262

β-NADH Inhibitor(1,6-Dihydronicotinamide-Adenine Dinucleotide)

Source: YeastForm: This product is an isomer of NADH which

greatly depresses the reduction rates of dehydrogenases.

PRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: ≥ 80 units/mg powderUnit Definition: One inhibitory unit is the activity

of 1 ml of reaction mixture required to reduce LDH isoenzyme-4H activity to 50%.

Storage: -20°C

19321 1mg 10mg

NADHSee β-Nicotinamide Adenine Dinucleotide,

Reduced, page 262

NADPSee Nicotinamide Adenine Dinucleotide

Phosphate, page 263

NADPHSee Nicotinamide Adenine Dinucleotide

Phosphate, Reduced, page 263

Nalidixic AcidC

12H

12N

2O

3

Formula Weight: 232.24PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: 98.0 - 102.0% (dry basis)Assay: 97.5 - 102.0% (as is)Identity: By IRMelting Point: 225 - 231°CLoss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.2%Mode of Action: Inhibits DNA synthesis by inhibiting DNA

gyraseCAS #389-08-2

19436 5gm 25gm 100gm

α-Naphthalene Acetic AcidC

12H

10O

2


19326 25gm 100gm 1kg

Naphthol AS-MX-AcetateC

21H

19NO

3

Formula Weight: 333.39PRODUCT SPECIFICATIONSForm: Tan powderAssay (HPLC): ≥ 97%Identity: By IRSolubility (1%, Ethylacetate): Clear solutionStorage: 4°C

19378 200mg 1gm 5gm

Naphthol AS-MX-PhosphateC

19H

18NO

5P

Formula Weight: 371.33PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98%Identity: By IRMoisture (KF): ≤ 1.0%Storage: 4°C

19835 500mg 5gm

Naphthol Blue BlackSee Amido Black 10B, page 189

β-Naphthoxyacetic Acid, Free AcidC

12H

10O

3


19400 100gm 1kg

α-Naphthyl AcetateC

12H

10O

2

Formula Weight: 186.21Essentially α-Naphthol freeStorage: -20°CCAS #830-81-9

19331 5gm 10gm 25gm

β-Naphthyl AcetateEssentially β-Naphthol freeC

12H

10O

2


19419 5gm 10gm

α-Naphthyl ButyrateC

14H

14O

2


19332 1gm 5gm 10gm

Biochemicals

Biochemicals


N-1-Naphthylethylene-Diamine, Dihydrochloride

C12

H14

N2•2HCl

Formula Weight: 259.17Colorimetric determination of Leucine

AminopeptidaseCAS #1465-25-4

19415 10gm 25gm 100gm

α-Naphthyl Phosphate, Monosodium Salt

C10

H8NaO

4P•H

2O

Formula Weight: 264.15 (monohydrate)PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 97% (as is monohydrate)Chromatography (TLC): ≥ 99%Identity: By IRMoisture (KF): ≤ 10.0%Storage: 4°CCAS #1136-89-6

19391 5gm 25gm

NBTSee p-Nitro Blue Tetrazolium Chloride, page 263

NDSB-195(Dimethyl Ethyl Ammonium Propane Sulfonate)

C7H

17NO

3S

Formula Weight: 195.28PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98%Identity: By IRSolubility (10%, H

2O): Clear and complete

Moisture (KF): ≤ 1.0%

26216 5gm 25gm 100gm

NDSB-201(3-(1-Pyridino)-1-Propanesulfonate)

C8H

11NO

3S

Formula Weight: 201.25PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98%Identity: By IRSolubility (10%, H


Melting Point: 275 - 279°CMoisture (KF): ≤ 1.0%pH (50%, H

2O): 2.5 - 6.0

26217 5gm 25gm 100gm

Neocuproine, Hydrochloride(2,9-Dimethyl-1,10-Phenanthroline HCl)

C14

H12

N2•HCl•nH

2O


PRODUCT SPECIFICATIONSForm: Off-white to pale greenish-tan powderAssay: ≥ 98.0% (dry basis)Identity: By IRChromatography (TLC): HomogeneousMoisture (KF): ≤ 10%Storage: 4°CCAS #7296-20-0

19430 5gm 10gm 25gm 100gm 1kg

Neomycin Sulfate


23H

46N

6O

13•3H

2SO

4

Formula Weight: 908.88PRODUCT SPECIFICATIONSForm: White powderActivity: ≥ 600 µg neomycin/mg powder

(dry basis)Activity: ≥ 552 µg neomycin/mg powder (as is)Identity (A, B, C): Passes testspH (33 mg/ml): 5.0 - 7.5Loss on Drying: ≤ 8.0%Mode of Action: Binds to ribosomal components

and inhibits protein synthesis.Stock Solution: 10 mg/ml in waterWorking Concentration: 10 µg/mlStorage: Ambient, in tight, light resistant


19435 5gm 10gm 25gm

Neuraminidase(E.C.3.2.1.18)Source: Clostridium perfringensPRODUCT SPECIFICATIONSForm: Lyophilized, partially purifiedActivity: ≥ 0.5 units/mg materialUnit Definition: One unit releases 1 µmol of sialic

acid/min from bovine submaxillary mucin at 37°C, pH 5.0.


19455 10mg

Neutral RedC

15H

17N

4Cl

Formula Weight: 288.78PRODUCT SPECIFICATIONSForm: Green-black crystalline powderIdentity: By IRVisual Transition Interval: pH 6.8 - Red pH 8.0 - AmberCAS #553-24-2

19465 25gm 100gm 1kg

NiacinSee Nicotinic Acid, page 263

Niacinamide(Nicotinic Acid Amide; Nicotinamide)

USBioAnalyzedC

6H

6N

2O

Formula Weight: 122.12PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 101.5% (dry basis)Identity (A, B): Passes testsMelting Point: 128 - 131°CLoss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Heavy Metals: ≤ 0.003%Readily Carbonizable Substances: Passes testResidual Solvents: Meets requirementsCAS #98-92-0

19480 200gm 500gm 1kg 10kg

Bioc

hem

ical

sBiochemicals

98 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Nicacinamide, HydrochlorideC

6H

6N

2O•HCl


19485 500gm

NicotinamideSee Niacinamide, page 261

β-Nicotinamide Adenine Dinucleotide(β-NAD; Coenzyme I; Diphosphopyridine Nucleotide; DPN)

C21

H27

N7O

14P

2•3H

2O

Formula Weight: 717.47 (trihydrate) 663.43 (anhydrous)PRODUCT SPECIFICATIONSForm: White powderAssay (Enzymatic): 99 ± 4%Assay: 100 ± 3% (UV, 260 nm, pH 7.5)Identity: By IRε

340 (pH 10.0): [6.3 ± 0.2] x 103

ε260

(pH 7.5): [18.0 ± 0.5] x 103


250/A

260: 0.83 ± 0.03

A280

/A260

: 0.21 ± 0.02Spectral Ratios (pH 10, reduced with ADH): A

340/A

260 (red): 0.43 ± 0.01

Moisture: ≤ 8%Note: The above product is available in



15335 500mg 1gm 5gm 10gm 25gm 100gm

-Nicotinamide Adenine Dinucleotide, Low Alcohol Content(βNAD)

C21

H27

N7O

14P

2•3H

2O

Formula Weight: 717.47 (trihydrate) 663.43 (anhydrous)PRODUCT SPECIFICATIONSForm: White powderAssay: 99 ± 4% (dry basis) (calc. from A

340,

enzymatic, pH 10.0) 99 ± 3% (dry basis) (calc. from ε

260,

pH 7.5)Identity: By IRε

260 (pH 7.5): [18.0 ± 0.5] x 103

ε340

(pH 10.0): [6.3 ± 0.2] x 103


250/A

260: 0.83 ± 0.03

A280

/A260

: 0.21 ± 0.02Spectral Ratios (pH 10, reduced with LDH): A

340/A

260: 0.43 ± 0.01

Moisture (KF): ≤ 8%Alcohol (EtOH): ≤ 0.05%Iron (Fe): ≤ 25 ppmStorage: -20°C, protect from moistureCAS #53-84-9

15339 1gm 5gm

β-Nicotinamide Adenine Dinucleotide, Lithium Salt, Dihydrate(β-NAD)

C21

H26

N7O

14P

2Li•2H

2O

Formula Weight: 705.39 (dihydrate) 663.43 (free acid)Free of LDH. Stable.Storage: -20°C

19438 250mg 1gm 5gm

-Nicotinamide Adenine Dinucleotide, Monosodium Salt(β-NAD)

C21

H26

N7O

14P

2Na•2H

2O

Formula Weight: 721.44 (dihydrate) 685.41 (anhydrous monosodium)PRODUCT SPECIFICATIONSForm: White to pale yellow powderAssay (Enzymatic): ≥ 95%Assay (UV 260 nm, pH 7.5): 100 ± 3%Spectral Ratios (pH 7.5): A

250/A

260: 0.83 ± 0.03

A280

/A260

: 0.21 ± 0.02Spectral Ratios (pH 10): A

340/A

260: 0.43 ± 0.01

A260

/A340

: 2.32 ± 0.06Moisture: ≤ 8%pH (0.4%, H

2O): 5.35 - 6.35

Sodium (Na): 3.0% ± 0.5%Storage: -20°CCAS #20111-18-6

19439 1gm 5gm

β-Nicotinamide Adenine Dinucleotide-Reduced, Disodium, Trihydrate(β-NADH; Coenzyme I-Reduced; Triphosphopyridine Nucleotide-Reduced; DPNH)

C21

H27

N7O

14P

2Na

2•3H

2O

Formula Weight: 763.45 (disodium, trihydrate) 709.40 (anhydrous, disodium)PRODUCT SPECIFICATIONSForm: White to cream colored powderAssay (Enzymatic): 99 ± 4%Assay (UV, 260 nm): 99 ± 4%ε

260 (10mM Tris): [14.4 ± 0.5] x 103

ε340

(10mM Tris): [6.3 ± 0.2] x 103

Spectral Ratios (10mM Tris): A

250/A

260 (red): 0.82 ± 0.03

A280

/A260

(red): 0.23 ± 0.02 A

340/A

260 (red): 0.43 ± 0.01

Moisture (KF): ≤ 8%Sodium (Na): 6.5 ± 1.5%Note: Do not use unbuffered water for dissolution

since it may cause decomposition of β-NADH.CAS #606-68-8

15345 100mg 250mg 500mg 1gm 5gm 10gm 25gm

Biochemicals

Biochemicals


-Nicotinamide Adenine Dinucleotide Phosphate, Monosodium, Tetrahydrate(β-NADP; Coenzyme II-Oxidized; Triphosphopyridine Nucleotide-Oxidized; TPN)

C21

H27

N7O

17P

3Na•4H

2O

Formula Weight: 837.45 (monosodium tetrahydrate) 765.39 (anhydrous, NADP•Na)PRODUCT SPECIFICATIONSAssay (Enzymatic): ≥ 93%Spectral Ratios (pH 7.5): A

250/A

260: 0.83 ± 0.03

A280

/A260

: 0.21 ± 0.02Spectral Ratios (pH 7.5, reduced with G6PDH): A

340/A

260: 0.43 ± 0.02

Moisture: ≤ 8.0%Sodium (Na): 3.0 ± 1.5%Note: The above product is available in



22655 50mg 100mg 250mg 500mg 1gm 5gm

β-Nicotinamide Adenine Dinucleotide Phosphate-Reduced, Tetrasodium, Tetrahydrate(β-NADPH; Coenzyme II-Reduced; Triphosphopyridine Nucleotide-Reduced; TPNH)

C21

H26

N7O

17P

3•Na

4•4H

2O

Formula Weight: 905.41 (tetrasodium, tetrahydrate) 833.35 (anhydrous, tetrasodium)PRODUCT SPECIFICATIONSForm: White to slightly off-white powderAssay (Enzymatic): ≥ 93%Assay (UV, 260 nm): 100 ± 5%Assay (UV, 340 nm): 100 ± 5%Spectral Ratios (10mM Tris): A

340/A

260: 0.43 ± 0.01

Moisture: ≤ 8.0%Sodium (Na): 10.0 ± 2.0%Note: The above product is available in



22650 25mg 50mg 100mg 250mg 500mg 1gm

Nicotinic AcidUSBioAnalyzedC

6H

5NO

2

Formula Weight: 123.11PRODUCT SPECIFICATIONSForm: White powderAssay: 99.0 - 101.0% (dry basis)Identity (A, B): Passes testsLoss on Drying: ≤ 1.0%Residue on Ignition: ≤ 0.1%Chloride (Cl): ≤ 0.02%Sulfate (SO

4): ≤ 0.02%

Heavy Metals (Pb): ≤ 0.002%Ordinary Impurities: Meets requirementsResidual Solvents: Meets requirementsCAS #59-67-6

19500 500gm 1kg 5kg

Ninhydrin, Monohydrate(1,2,3-Indantrione Hydrate; Triketohydrindene Hydrate)

ACS Reagent GradeC

9H

6O

4

Formula Weight: 178.14PRODUCT SPECIFICATIONSForm: White to brownish white crystalsIdentity and Melting Point: Passes testSolubility: Passes testSensitivity to Amino Acids: Passes testCAS #485-47-2

19515 10gm 25gm 50gm 100gm 500gm 1kg

p-Nitro Blue Tetrazolium Chloride(NBT)

ULTRAPUREC

40H

30Cl

2N

10O

6

Formula Weight: 817.64PRODUCT SPECIFICATIONSForm: Yellow crystalline powderIdentity: By IRSolubility (0.5% in H

2O): Passes test

Solubility (1% in MeOH): Passes testSensitivity: Passes testApplication:•Used with 5-bromo-4-chloro-3-indolyl

phosphate (BCIP) to detect antigen-antibody alkaline phosphatase complexes. The NBT/BCIP mix is converted to a dense blue compound and will develop at the site of antigen-antibody complexes.

NBT Stock Solution: 50 mg/ml in 70% dimethylformamideBCIP/NBT Developing Solution: 33 ml NBT (50 mg/ml) 5 ml AP Buffer (100mM Tris-HCl, pH 9.5,

100mM NaCl, 5mM MgCl2)

Add 16.8 ml BCIP stock (50 mg/ml in 100% dimethylformamide)

Protect from light and use within 1 hr.CAS #298-83-9

19535 250mg 500mg 1gm 5gm 10gm

4-Nitrophenyl-N-Acetyl-β-D-Galactosaminide(p-Nitrophenyl-2-Acetamido-2-Deoxy-β-D-Galactoside)

C14

H18

N2O

8


34128 100mg 1gm

2-Nitrophenyl-N-Acetyl-β-D-Glucosaminide(o-Nitrophenyl-2-Acetamido-2-Deoxy-β-D-Glucoside)

C14

H18

N2O

8


34129

Bioc

hem

ical

sBiochemicals

100 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

4-Nitrophenyl-N-Acetyl- -D-Glucosaminide(p-Nitrophenyl-2-Acetamido-2-Deoxy-α-D-Glucoside)

C14

H18

N2O

8


33248 100mg

4-Nitrophenyl-N-Acetyl-β-D-Glucosaminide(p-Nitrophenyl-2-Acetamido-2-Deoxy-β-D-Glucopyranoside)

C14

H18

N2O

8


34130 250mg 1gm

4-Nitrophenyl-β-D-Cellobioside(p-Nitrophenyl-β-D-Cellobioside)

C18

H25

NO13


33239 100mg 500mg

4-Nitrophenyl-β-D-Fucopyranoside(p-Nitrophenyl-β-D-Fucoside)

C12

H15

NO7


33240 100mg 1gm

4-Nitrophenyl-α-L-FucopyranosideC

12H

15NO

7

Formula Weight: 285.25PRODUCT SPECIFICATIONSForm: White powderIdentity: By IRMelting Point: 196 ± 2°CStorage: 4°C

34131 50mg 250mg 1gm

4-Nitrophenyl- -L-Fucopyranoside(p-Nitrophenyl-β-L-Fucoside)

C12

H15

NO7


34132 100mg 500mg

2-Nitrophenyl-β-D-GalactopyranosideSubstrate for β-GalactosidaseC

12H

15NO

8

Formula Weight: 301.25PRODUCT SPECIFICATIONSForm: White crystalline powderChromatography (TLC): HomogeneousIdentity: By IR[α]20

D : -66° ± 7° (c=1 in H

2O)

Storage: -20°C, desiccatedCAS #369-07-3

19593 500mg 1gm 5gm 25gm

4-Nitrophenyl-α-D-Galactopyranoside(p-Nitrophenyl-α-D-Galactoside)

C12

H15

NO8


34133 250mg 500mg 1gm 5gm

4-Nitrophenyl-β-D-Galactopyranoside(PNPG)

C12

H15

NO8

Formula Weight: 301.25PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderIdentity: By IR[α]20

D : -83° ± 3° (dry basis, c=1 in H

2O)

A (425 nm, 8 mg/ml, 1 cm): ≤ 0.07 (in 0.15M AMP buffer, pH 10.25)

Moisture (KF): ≤ 10%Free p-Nitrophenol: ≤ 0.01%Storage: -20°C, protect from moisture.CAS #3150-24-1

34134 1gm 5gm

2-Nitrophenyl- -D-Glucopyranoside(o-Nitrophenyl-β-D-Glucoside)

C12

H15

NO8


33250 250mg 1gm 5gm

4-Nitrophenyl-α-D-GlucopyranosideC

12H

15NO

8


34135 1gm 5gm

4-Nitrophenyl-β-D-GlucopyranosideC

12H

15NO

8


D : -106° ± 5° (dry basis, c=1 in H

2O)

A (425 nm, 8 mg/ml, 1 cm): ≤ 0.07 (in 0.15M AMP buffer, pH 10.25)

Moisture (KF): ≤ 10%Free p-Nitrophenol: ≤ 0.01%Storage: -20°C, protect from moisture.CAS #2492-87-7

19594 250mg 500mg 1gm 5gm

4-Nitrophenyl-β-D-GlucuronideC

12H

13NO

9


34136 100mg 250mg 1gm

Biochemicals

Biochemicals


4-Nitrophenyl- -D-Lactopyranoside(p-Nitrophenyl-β-D-Lactoside)

C18

H25

NO13


34137 100mg 500mg

4-Nitrophenyl-α-D-MaltosideC

18H

25NO

13


34138 10mg 50mg 100mg

4-Nitrophenyl-α-D-Mannopyranoside(p-Nitrophenyl-α-D-Mannoside)

C12

H15

NO8


34139 250mg 1gm 5gm

4-Nitrophenyl-β-D-Mannopyranoside(p-Nitrophenyl-β-D-Mannoside)

C12

H15

NO8


34140 100mg 500mg

4-Nitrophenyl Phosphate, Dicyclohexylammonium Salt

NO2C

6H

4OPO(OH)

2(C

6H

11NH

2)2•H

2O

Formula Weight: 435.45This is a particularly stable salt form of

p-Nitrophenyl Phosphate.Storage: 4°CCAS #14545-82-5

19600 5gm 25gm 100gm

4-Nitrophenyl Phosphate, Disodium Salt, Hexahydrate

C6H

4NO

6PNa

2•6H

2O

Formula Weight: 371.14PRODUCT SPECIFICATIONSForm: Light yellow crystalline powderMoisture: ≤ 32%p-Nitrophenyl: ≤ 0.005%Free Inorganic Phosphate: ≤ 1%Storage: 4°CCAS #4264-83-9

19587 1gm 10gm 25gm 50gm

4-Nitrophenyl Phosphate, Ditris SaltC

14H

28N

3O

12P

Formula Weight: 461.36PRODUCT SPECIFICATIONSForm: White to pale yellow crystalline powderIdentity: By IRSpectral Ratios (425 nm, 8 mg/ml, 1 cm): ≤ 0.070

λmax

: 309 ± 1 nmFree p-nitrophenol: ≤ 0.010%Moisture (KF): ≤ 1.5%Storage: 4°CCAS #68189-42-4

19603 1gm 5gm 25gm 100gm

4-Nitrophenyl ThioacetateC

8H

7NO

3S


19605 5gm 25gm

2-Nitrophenyl-β-D-Thio-Galactopyranoside

C12

H15

NO7S


19599 25mg 100mg 500mg

4-Nitrophenyl- -D-XylopyranosideC

11H

13NO

7


34142 100mg 500mg 1gm

Nonidet P40 SubstituteIgepal CA-630, ([Octylphenoxy]polyethoxyethanol; NP-40)

ULTRAPUREPRODUCT SPECIFICATIONSForm: Clear, slightly yellow-green viscous liquid(n20

d) : 1.06 ± 0.005

Chemically indistinguishable from Nonidet P40, which is no longer commercially available.

19628 500ml 1L

Norit®

See Charcoal-Activated Norit, page 205

DL-NorleucineCH

3(CH

2)3CH(NH

2)COOH

Formula Weight: 131.17PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5%Identity: By IRChromatography (TLC): HomogeneousMoisture: ≤ 1.0%CAS #616-06-8

19635 25gm 100gm 1kg

DL-Norvaline(DL-2-Aminopentanoic Acid)

CH3(CH

2)2CH(NH

2)COOH

Formula Weight: 117.15PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0%Identity: By IRCAS #760-78-1

19660 25gm 100gm

NP-40See Nonidet P40 Substitute, page 265

Bioc

hem

ical

sBiochemicals

10� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Nucleoside-5'-Triphosphates (ATP, CTP, GTP, UTP), Set of Four, 100mM Solutions(NTPs)

ULTRAPURE100mM aqueous solutions, pH 7.5Storage: -20°C

4x25µmol(250µl)eachNTPperpack.77245 1pk

Nucleotide SolutionsSee Adenosine-5'-Triphosphate (ATP), page 174See Cytidine-5'-Triphosphate (CTP), page 213See 2'-Deoxyadenosine-5'-Triphosphate (dATP),

page 214See 2'-Deoxycytidine-5'-Triphosphate (dCTP),

page 215See 2'-Deoxyguanosine-5'-Triphosphate (dGTP),

page 216See 2'-Deoxyinosine-5'-Triphosphate (dITP),

page 217See 2'-Deoxynucleoside-5'-Triphosphates

(dNTP), Set of Four, page 217See 2'-Deoxythymidine-5'-Triphosphate (dTTP),

page 217See 2'-Deoxyuridine-5'-Triphosphate (dUTP),

page 218See 2',3'-Dideoxyadenosine-5'-Triphosphate

(ddATP), page 220See 2',3'-Dideoxycytidine-5'-Triphosphate

(ddCTP), page 220See 2',3'-Dideoxyguanosine-5'-Triphosphate

(ddGTP), page 220See 2',3'-Dideoxythymidine-5'-Triphosphate

(ddTTP), page 220See Guanosine-5'-Triphosphate (GTP), page 238See PCR-Nucleotide Mixes, page 268See Uridine-5'-Triphosphate (UTP), page 306

Nystatin(Mycostatin)

USBioAnalyzedPRODUCT SPECIFICATIONSForm: Yellow to light tan powderActivity: ≥ 4,400 USP Nystatin units/mg (as is) ≥ 4,631 USP Nystatin units/mg (dry basis)Identity: By UV, A

230/A

279 = 0.90 - 1.25

pH (3%, H2O): 6.0 - 8.0

Loss on Drying: ≤ 5.0%Storage: -20°C in tightly closed light resistant

containersCAS #1400-61-9

19770 1mu 5mu 10mu

NZCYM Broth, Ready-Made PowderForm: Off-white free flowing powderpH (2.2%, H

2O): 7.0 ± 0.2

Contents: Casein Peptone: 10 gm/L Casamino Acids: 1 gm/L Magnesium Sulfate: 0.98 gm/L Yeast Extract: 5 gm/L Sodium Chloride: 5 gm/LTo use: Dissolve 22 gm powder per liter of

purified water. Autoclave.Application: •For the propagation and maintenance of lambda

bacteriophage

75855 250gm 1kg

n-Octadecyl-N,N-Dimethyl-3-Ammonio-1-Propane-Sulfonate


n-Octyl-β-D-Glucopyranoside

ULTRAPUREC

14H

28O

6

Formula Weight: 292.37Storage: -20°C, protect from moisture.CAS #29836-26-8

19775 1gm 5gm 10gm

n-Octyl-N,N-Dimethyl-3-Ammonio-1-Propane-Sulfonate


n-Octyl-β-D-ThioglucopyranosideC

14H

28O

5S

Formula Weight: 308.43PRODUCT SPECIFICATIONSForm: White powderAssay (HPLC): ≥ 99.0%Identity: By IRSolubility (50 mg/ml in Ethanol): Clear, colorless

solutionCarbon: 54.0 - 55.0% (dry basis)Storage: -20°C

19669 1gm 5gm

Oleic Acid(9-Octadecanoic Acid)

CH3(CH

2)7CH=CH(CH

2)7COOH

Formula Weight: 282.46PRODUCT SPECIFICATIONSForm: Clear, colorless oilAssay: ≥ 99.0% (by GLC)Storage: 4°C, vacuum sealed ampules or under

inert gas.CAS #112-80-1

19785 1gm 5gm 25gm

Oligo (dT)12-18 Primer, MN ≅ 4500 MB GradeForm: 25µM in dH

2O

2.5 nmol per tube.Storage: -20°C

77405 100µl(2.5nmol)

Oligo p(dT) Cellulose(Oligo dT Cellulose)

ULTRAPUREBinding Capacity: 40 - 100 A

260 units/gm of

celluloseAssayed for quantitative poly A and 3H mRNA

(HeLa cells) bindingStorage: -20°C

71547 1gm

Oligo p(dT)12-18 Sodium Salt(Oligo dT)

LyophilizedForm: This oligodeoxythymidylate mixture

is synthesized using O-cyanoethyl phosphoramidite chemistry. After the removal of the protecting groups, the product is converted to the sodium salt and the excess salt removed by gel filtration.

Storage: -20°C

19817 5units 25units 100units

Oligomycin APRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 90%Storage: -20°CCAS #579-13-5

19803 10mg 50mg

Biochemicals

Biochemicals


Olive OilReagent GradeCAS #8001-25-0

19805 1lb 25lb

ONPGSee 2-Nitrophenyl-β-D-Galactopyranoside,

page 264

Orcinol, Monohydrate(5-Methylresorcinol)

C7H

8O

2•H

2O

Formula Weight: 142.15PRODUCT SPECIFICATIONSForm: White to beige crystalline powderAssay: ≥ 99.0% (dry basis)Chromatography (TLC): HomogeneousIdentity: By IRMelting Point: 56 - 61°CMoisture (KF): ≤ 13.7%CAS #6153-39-5

19815 5gm 10gm 25gm 100gm

D-Ornithine, HydrochlorideNH

2(CH

2)3CH(NH

2)COOH•HCl


19820 1gm 5gm 10gm

DL-Ornithine, HydrochlorideNH

2(CH

2)3CH(NH

2)COOH•HCl

Formula Weight: 168.62PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Identity: By IRChromatography (TLC): HomogeneousMelting Point: 230 - 240°CLoss on Drying: ≤ 1.5%CAS #1069-31-4

19825 10gm 25gm 100gm

L-Ornithine, HydrochlorideNH

2(CH

2)3CH(NH

2)COOH•HCl


D : +23.0° to +25.0° (c=4 in 6N HCl)

Loss on Drying: ≤ 0.3%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 20 ppmAmmonia (NH

4): ≤ 0.02%

Arsenic (As): ≤ 1 ppmIron (Fe): ≤ 20 ppmSulfate (SO

4): ≤ 0.03%

CAS #3184-13-2

19830 25gm 100gm 1kg 5kg

Ouabain(Strophanthin-G)

C29

H44

O12

•8H2O


19833 250mg 1gm 5gm

OvalbuminSee Albumin, Egg, page 188

Oxalacetic Acid(Hydroxymaleic Acid)

C4H

4O

4

Formula Weight: 132.07PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98.0% Identity: By IRStorage: -20°CCAS #328-42-7

19837 1gm 5gm 10gm 25gm 100gm

Oxamic Acid, Free AcidNH

2COCOOH


19843 5gm 10gm 25gm 100gm

Oxamic Acid, Sodium Salt(Sodium Oxamate)

NH2COCOONa

Formula Weight: 111.03PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98.0%Identity: By IRLoss on Drying: ≤ 1.0%pH (1%, H

2O): 5.4 - 6.5

Solubility (2%, H2O): Clear, colorless

CAS #595-73-1

19829 5gm 25gm 100gm

Ox Bile Extract, Bile Salts

19845 100gm

Oxytetracycline, HydrochlorideC

22H

24N

2O

9•HCl

Formula Weight: 496.89PRODUCT SPECIFICATIONSForm: Light yellow crystalline powderActivity: ≥ 835 µg of C

22H

24N

2O

9/mg (dry basis)

≥ 818 µg of C22

H24

N2O

9/mg (as is)

Identity: By UVpH (10 mg/ml): 2.0 - 3.0Loss on Drying: ≤ 2.0%Storage: Store protected from light.CAS #2058-46-0

23659 50gm 100gm

PABASee p-Amino Benzoic Acid, page 189

Bioc

hem

ical

sBiochemicals

10� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Pancreatin 1XSource: Porcine PancreasForm: Powder stabilized with lactose.Unit Definition: Pancreatin will convert at least 25

times its weight of potato starch into soluble carbohydrates in 5 min at 40°C and at least 25 times its weight of casein into proteases in

1 hr at 40°C.

19880 200gm 1kg

Pancreatin 5XSource: Porcine PancreasPRODUCT SPECIFICATIONSForm: Off-white to light tan powderIdentity: By IRProtease: ≥ 125 USP units/mgAmylase: ≥ 125 USP units/mgLipase: ≥ 10 USP units/mgE. coli : NegativeSalmonella: NegativeLoss on Drying: ≤ 6.8%

19890 50gm 100gm 500gm

Pantothenic Acid, Calcium SaltSee Calcium Pantothenate, page 202

D-Pantothenyl AlcoholC

9H

19NO

4


19905 25gm

Papain(E.C.3.4.22.2)Source: Papaya LatexPRODUCT SPECIFICATIONSForm: Off-white powderActivity: Approx. 70 Milk Clotting Units/mgLoss on Drying: ≤ 7.0%CAS #9001-73-4

19930 100gm 500gm 1kg

Papain(E.C.3.4.22.2)Source: Papaya LatexPRODUCT SPECIFICATIONSForm: 2X crystallized, suspension in 0.05 NaOAc

(pH 4.5) with 0.02% sodium azide. Prepared by method of Kimmel and Smith, (1954) J. Biol. Chem. 207, 515.

Activity: ≥ 15 units/mg proteinUnit Definition: One unit hydrolyzes 1 µmol of

BAEE (PN 11960)/min at 25°C, pH 6.2.Storage: 4°C

19925 100mg 500mg 1gm

Paraformaldehyde Solution, 4% in PBSDescription: Paraformaldehyde solution 4% in

phosphate buffered salinePRODUCT SPECIFICATIONSForm: Colorless, clear solutionPurity (Formaldehyde): 91 - 93%pH (25°C): 7.0 - 7.6Storage: 4°C

19943 1L

PararosanilineSee Basic Fuchsin, page 196

PBS, 10X Solution, pH 7.4

ULTRAPUREMB GradeForm: 10X PBS (Phosphate Buffered Saline)

solution consisting of 80.6mM sodium phosphate, 19.4mM potassium phosphate, 27mM KCl and 1.37M NaCl in high purity dH

2O, pH 7.4. Solution is 0.2 µm filtered

and dispensed into durable, square Nalgene bottles. The 5 L size is supplied in an upright carton with a convenient dispensing spout. Dilute to 1X with high purity dH

2O for a solution

consisting of 10mM phosphate, pH 7.4 ± 1 2.7mM potassium chloride and 137mM NaCl.

pH (25°C, 10X): 7.4 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test Protease: Passes test

75889 100ml 1L 5L

PCR Nucleotide Mix, 10mM Solution

ULTRAPUREForm: Premixed dNTPs at 10mM each dATP,

dCTP, dGTP, dTTP.Functionally tested in PCR with USB Taq DNA

Polymerase (PN 71160).

77212 500µl

PCR Nucleotide Mix, 25mM Solution


dCTP, dGTP, dTTP.Functionally tested in PCR with USB Taq DNA


77119 500µl

PCR Nucleotide Mix with dUTP, 10mM Solution


dCTP, dGTP, dUTPFunctionally tested in PCR with USB Taq DNA


77330 500µl

PDT Disulfonate, Disodium SaltC

20H

12N

4O

6S

2Na

2

Formula Weight: 514.44 (anhydrous) 550.47 (dihydrate)PRODUCT SPECIFICATIONSForm: Yellow powderAssay (UV): ≥ 95.0% (Fe complex, pH 4.75) as is,

dihydrateIdentity: By IRλ

max: 562 ± 2 nm

εmax

: ≥ 26.5 x 103

Moisture (KF): ≤ 10%Note: The assay value is calculated using

MW=1707.26 for the Fe (PDT•Na2•2H

2O)

3

complex and theoretical εmax

=27.9 x 103.CAS #28048-33-1

20061 1gm 5gm 25gm

Pectin(Polygalacturonic Acid Methyl Ester)

Source: Citrus FruitsCAS #9000-69-5

19955 100gm 500gm

Biochemicals

Biochemicals


Pectinase(E.C.3.2.1.15)Source: Aspergillus nigerPRODUCT SPECIFICATIONSForm: Beige powderActivity: ≥ 1.0 units/mgUnit Definition: One unit releases 1 µmol of

galacturonic acid from polygalacturonic acid per minute at 25°C, pH 4.0.


19962 50gm 100gm 500gm

PEGSee Polyethylene Glycol 400, page 274See Polyethylene Glycol 6000, page 274See Polyethylene Glycol 8000, page 274

Pelargonic Acid(Nonanoic Acid)

C9H

18O

2

Formula Weight: 158.24PRODUCT SPECIFICATIONSForm: Clear liquidAssay (GC): ≥ 99%CAS #112-05-0

19970 1gm 5gm

Penicillin G, PotassiumUSBioAnalyzedC

16H

17KN

2O

4S

Formula Weight: 372.48PRODUCT SPECIFICATIONSForm: White powderAssay: 1440 - 1680 Penicillin G units/mg (as is)Identity A: By IRIdentity B: Passes testpH (60 mg/ml): 5.0 - 7.5Loss on Drying: ≤ 1.5%Crystallinity: Passes testMode of Action:•Interferes with bacterial cell wall synthesis and

cell division.•Inactivated by oxidizing and reducing agents,

glycerols and alcohols.CAS #113-98-4

19985 100mu 1kg

Penicillin G, Sodium


16H

17N

2NaO

4S

Formula Weight: 356.37PRODUCT SPECIFICATIONSForm: White powderActivity: 1500 - 1750 Penicillin G units/mg (as is)Crystallinity: Passes testIdentity (A, B): Passes testspH (60 mg/ml): 5.0 - 7.5Loss on Drying: ≤ 1.5%Mode of Action:•Interferes with bacterial cell wall synthesis and

cell division.•Inactivated by oxidizing and reducing agents,

glycerols and alcohols.CAS #69-57-8

19995 100mu 1kg

Pentaethyleneglycol MonooctyletherC

18H

38O

6


15722

PEPSee Phosphoenol Pyruvic Acid, page 272

Pepsin(E.C.3.4.23.1)Source: Porcine StomachPRODUCT SPECIFICATIONSForm: Lyophilized, salt free, 2X crystallizedActivity: ≥ 2500 units/mgUnit Definition: One unit causes an increase in

absorbance at 280 nm of 0.001/min at 37°C, pH 2.0.

Storage: -20°CCAS #9001-75-6

20010 1gm 5gm 10gm 25gm

Pepsin 1:10,000(E.C.3.4.23.1)Source: Porcine StomachPRODUCT SPECIFICATIONSForm: Stabilized powderActivity: 1 gm will digest approximately

10,000 gm of egg albumin under standard assay conditions.

20015 50gm 100gm 500gm 1kg

Pepstatin A(Isovaleryl-Val-Val-4-Amino-3-Hydroxy-6-Methylheptanoyl-Ala-4-Amino-3-Hydroxy-6-Methylheptanoic Acid)

ULTRAPUREC

34H

63N

5O

9

Formula Weight: 685.89PRODUCT SPECIFICATIONSForm: White powderChromatography (TLC): HomogeneousPeptide Content: ≥ 98%Biological Activity: ≥ 850 µg/mgApplication:•Pepstatin A, a protease inhibitor, inhibits

Pepsin, Renin and Cathepsin D. Effective concentrations are 10-6 to 10-9M. It does not inhibit Trypsin, Chymotrypsin, Papain or Plasmin.

Note: Dissolves in methanol.Storage: 4°CCAS #26305-03-6

20037 5mg 25mg

Peptic Peptone B(Peptones)

PRODUCT SPECIFICATIONSForm: Peptic hydrolysate of beef tissueNitrogen: 10.5 - 12.5%Moisture: ≤ 5.0%pH (10%, H

2O): 7.0 ± 0.3

Ash: 12.5 - 16.5%Salmonella: NegativeAn excellent media for bacteriological work with

many aerobic and anaerobic bacteria.

20040 4oz 1lb 5lb 25lb

Bioc

hem

ical

sBiochemicals

106 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

PeptonesSee Bacteriological Peptone, page 196See Casein Hydrolysate, page 203See Lactalbumin Hydrolysate, page 245See Peptic Peptone, page 269See Soy Hydrolysate, page 289See Yeast Hydrolysate and Extract, page 310

Peroxidase(E.C.1.11.1.7)Source: HorseradishPRODUCT SPECIFICATIONSForm: Lyophilized, salt free, chromatographically

pureActivity: RZ greater than 3.0; 250 guaiacol units/

mg (3500 IUB units/mg).Unit Definition: One unit decomposes 1 µmol

of substrate/min at 25°C, pH 6.0. One guaiacol unit at 25°C is approx. equal to one purpurogallin unit at 20°C.

Storage: -20°CCAS #9003-99-0

20055 25mg 100mg 500mg

Peroxidase(E.C.1.11.1.7)Source: HorseradishPRODUCT SPECIFICATIONSForm: Lyophilized, salt freeActivity: RZ approx. 0.6; 60 purpurogallin

units/mg (800 IUB units/mg).Unit Definition: One unit produces 1 mg of

purpurogallin in 20 sec. at 20°C.Storage: -20°C

20057 250mg 500mg 1gm

Peroxidase(E.C.1.11.1.7)Source: HorseradishPRODUCT SPECIFICATIONSForm: Lyophilized, salt freeActivity: RZ: ≥ 1.0; 100 purpurogallin units/mg

(1250 IUB units/mg)Unit Definition: One unit produces 1 mg of

purpurogallin in 20 sec. at 20°C.Storage: -20°CCAS #9003-99-0


Peroxidase ConjugateSee Canavalia ensiformas Agglutinin-Peroxidase

Conjugate, page 202

r-hPGM-B, r-hPGM-MSee Phosphoglycerate Mutase-B, -M, page 273

Phaseolus Vulgaris Agglutinin-Pure(Phytohemagglutinin with Mucoprotein)

Source: Red Kidney BeanForm: LyophilizedStorage: -20°C

34490 10mg

Phenol(Carbolic Acid)

ULTRAPUREMB GradeC

6H

5OH

Formula Weight: 94.11PRODUCT SPECIFICATIONSForm: Translucent crystalline solidAssay: ≥ 99%Clarity of Solution (5%, H

2O): Passes test

pH (5%, H2O): 4.5 - 6.0

Freezing Point: ≥ 40.5°CWater: ≤ 0.1%Res. on Evaporation: ≤ 0.05%Buffer Equilibration Suitability: Passes testIron (Fe): ≤ 1 ppmLead (Pb): ≤ 2 ppmMagnesium (Mg): ≤ 1 ppmDNase (endo): Passes testPreservatives/Inhibitors: Passes testApplication:•Used primarily for DNA/RNA extraction and

purificationPreparation of buffered phenol:1. Allow phenol to warm to room temperature and

then melt at 68°C.2. Add an equal volume of buffer (0.5M Tris-HCl,

pH 8.0).3. Stir for about 15 minutes on a magnetic stirrer.4. When the two phases have separated, aspirate

the top (aqueous) phase.5. Add an equal volume of 0.1M Tris-HCl, pH 8.0

and repeat stirring.6. Remove the aqueous phase and repeat

extractions until the pH of the phenol is 7.8. (Note: Measure with pH paper).

7. After the phenol is equilibrated, remove the final aqueous phase. Top with 0.1 volumes of 0.1M Tris-HCl, pH 8.0.

8. Store in a light-tight bottle at 4°C.Note: For convenience, USB provides phenol

which is already equilibrated (Product Code 75829 or 77510).

Storage: -20°CPacked under inert atmosphereCAS #108-95-2

75830 100gm 500gm

Biochemicals

Biochemicals


Phenol, pH 4.5, Equilibrated

ULTRAPUREMB GradeForm: Liquid phenol equilibrated with citrate

bufferpH (5%, H

2O solution of phenol layer, 20°C): 4.5

± 0.1 (by pH meter). Topped with citrate buffer and packed under inert atmosphere.

Contaminant Testing: DNase: Passes testStorage: 4°CApplication: •More suited for RNA purification procedures

77510 100ml 400ml

Phenol, pH 8.0, Equilibrated

ULTRAPUREMB GradeForm: This product is supplied as water-saturated

phenol with a separate bottle of Phenol Equilibration Buffer (PN 75833). At the time of product use, simply add the entire contents of Phenol Equilibration Buffer to the water-saturated phenol.

pH (5%, after equilibration with PN 75833, 20°C): ≥ 8.0

Contaminant Testing: DNase: Passes testStorage: 4°CApplication: •Used in nucleic acid purification procedures and

dissolution of protein

75829 100ml 400ml

Phenol: Chloroform: Isoamyl Alcohol (25:24:1)

ULTRAPUREMB GradeForm: A liquid mixture of equilibrated phenol, ACS

Reagent Grade chloroform and ACS Reagent Grade isoamyl alcohol in a ratio of 25:24:1.

Contaminant Testing: DNase: Passes testApplication: •Nucleic acid extraction and purificationPhenol/Chloroform RNA Isolation MethodA. Guanidine HCl Homogenization Buffer for RNA

Isolation: 8.0M Guanidine HCl, 0.1M Sodium Acetate, pH 5.5, 5.0mM Dithiothreitol, 0.5% Sodium Lauryl Sarcosinate.

B. Extraction with Phenol: Most extractions are performed using equal volumes of equilibrated phenol with respect to the sample volume. Normally, the extraction is performed twice with phenol and once with a 1:1 solution of phenol/chloroform. Hence, it is estimated that 25 ml of phenol is required for every 10 ml of sample.

Note: If regular phenol is purchased, it will need to be equilibrated before use. For this reason, many customers may prefer to purchase phenol from USB that is already equilibrated (Product Code 75829 or 77510).

C. RNA Resuspension Buffer: TE, pH 7.5.Storage: 4°C

75831 100ml 400ml

PhenolphthaleinACS Reagent GradeC

20H

14O

4

Formula Weight: 318.32PRODUCT SPECIFICATIONSForm: White to off-white powderClarity of Alcohol Solution (1%, EtOH): Passes testVisual Transition: From pH 8.0: Colorless to pH 10.0: RedCAS #77-09-8

20075 250gm 500gm 1kg

Phenolphthalein Diphosphate, Tetrasodium Salt

C20

H12

Na4O

10P

2•nH

2O


PRODUCT SPECIFICATIONSForm: Pale beige powderAssay: ≥ 90% (dry basis)Identity: By IRMoisture (KF): ≤ 20%CAS #6880-90-9

20074 5gm 10gm

Phenol Red, Free Acid(Phenolsulfonphthalein)

ACS Reagent GradeC

19H

14O

5S

Formula Weight: 354.38PRODUCT SPECIFICATIONSForm: Rust/red crystalline powderClarity of Solution: Passes testVisual Transition Interval: pH 6.8 - Yellow pH 8.2 - RedCAS #143-74-8

20086 10gm 25gm 50gm

Phenol Red, Sodium Salt(Phenolsulfonphthalein)

ACS Reagent GradeC

19H

13O

5SNa

Formula Weight: 376.36PRODUCT SPECIFICATIONSForm: Rust/red crystalline powderClarity of Solution: Passes testVisual Transition Interval: pH 6.8 - Yellow pH 8.2 - RedCAS #34487-61-1

20085 5gm 10gm 25gm 50gm

PhenolsulfonphthaleinSee Phenol Red, page 271

Bioc

hem

ical

sBiochemicals

108 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

DL-PhenylalanineC

6H

5CH

2CH(NH

2)COOH

Formula Weight: 165.19PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (dry basis)Chromatagraphy (TLC): HomogeneousIdentity: By IRLoss on Drying: ≤ 0.3%Residue on Ignition: ≤ 0.3%Heavy Metals (Pb): ≤ 10 ppmAmmonia (NH

3): ≤ 0.03%

Arsenic (As): ≤ 3 ppmChloride (Cl): ≤ 0.02%Iron (Fe): ≤ 50 ppmSulfate (SO

4): ≤ 0.04%

CAS #150-30-1

20100 25gm 100gm 1kg

L-PhenylalanineUSBioAnalyzed(C

6H

5)CH

2CH(NH

2)COOH

Formula Weight: 165.19PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 101.5% (dry basis)Chromatographic Purity: Passes testIdentity: By IRLoss on Drying: ≤ 0.3%[α]25

D : -32.7° to -34.7° (c=2 in H

2O)

pH (1%, H2O): 5.4 - 6.0


4): ≤ 0.03%

Heavy Metals (Pb): ≤ 0.0015%Arsenic (As): ≤ 1.5 ppmChloride (Cl): ≤ 0.05%Iron (Fe): ≤ 0.003%O.V.I.: Meets requirementsCAS #63-91-2

20105 10gm 25gm 100gm 250gm 1kg 5kg

Phenyl- -D-GlucopyranosideC

12H

16O

6•nH

2O


D : -71.5° to -73.5° (c=2 in H

2O, dry basis)

Moisture (KF): ≤ 12.5%CAS #1454-44-4

20185 5gm 25gm

DL-α-Phenyl GlycineC

8H

9NO

2


20120 10gm 25gm 100gm

Phenylmethyl Sulfonyl Fluoride(PMSF)

ULTRAPUREC

7H

7FO

2S

Formula Weight: 174.19PRODUCT SPECIFICATIONSForm: Off-white/clear crystalsAssay: ≥ 99.0%Identity: By IRApplication: •PMSF is a protease inhibitor active against

trypsin and chymotrypsinCAS #329-98-6

20203 1gm 5gm 25gm 100gm

Phloroglucinol(1,3,5-Trihydroxybenzene)

C6H

6O

3


20220 25gm 100gm

PhosphocreatineSee Creatine Phosphate, page 210

Phosphoenol Pyruvic Acid, Monocyclohexylammonium Salt

C9H

18NO

6P


20250 100mg 1gm 5gm 25gm

Phosphoenol Pyruvic Acid, Trisodium Salt, Heptahydrate(PEP)

C3H

2O

6PNa

3•7H

2O

Formula Weight: 360.09 (heptahydrate)PRODUCT SPECIFICATIONSForm: White to slightly off-white powderAssay: ≥ 98.0%Assay (calc. from P organic): ≥ 45.0%Identity: By IRSolubility (5%, H


Ptotal

: 8.3 - 8.9%P

inorg: ≤ 0.2%

Porganic

: ≥ 8.2%Moisture (KF): 35.0 ± 2.0%

20253 250mg 1gm 5gm

Phosphoenol Pyruvic Acid, Tricyclohexylammonium Salt, Monohydrate

[CH2=C(OPO

3)COO](C

6H

11NH

3)3•H

2O

Formula Weight: 483.58PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (UV): ≥ 98.0% (dry basis)Identity: By IRChromatography (TLC): HomogeneousSolubility (1%, H


pH (1%, H2O): 7.5 - 8.5

Moisture (KF): ≤ 4.5%Storage: -20°CCAS #35556-70-8

20255 100mg 1gm 5gm 25gm

Biochemicals

Biochemicals


Phosphoglycerate Mutase - B, Recombinant(r-hPGM-B)

Source: Human Recombinant from E. coliPRODUCT SPECIFICATIONSForm: Solution in 10mM phosphate buffer

(pH 7.0)Concentration: Approx. 1 mg/mlSpecific Activity: ≥ 500 units/mg proteinPurity: Single band at about 29 kDa, as

determined by SDS-PAGEUnit Definition: One unit defines one µmole

of NAD+ production per minute at 30°C determined according to the method described by Bergmeyer, et. al.(1)

Reference:1. Bergmeyer, et. al., Method of Enzymatic

Analysis, 3rd Ed., (1983), 282-283.Storage: -20°C

26118 100µg

Phosphoglycerate Mutase - M, Recombinant(r-hPGM-M)

Source: Human Recombinant from E. coliPRODUCT SPECIFICATIONSForm: Solution in 50mM phosphate buffer,

pH 6.5, 1mM β-MEConcentration: Approx. 1 mg/mlSpecific Activity: ≥ 500 units/mg proteinPurity: Single band at about 29 kDa, as

determined by SDS-PAGEUnit Definition: One unit defines one µmole

of NAD+ production per minute at 30°C determined according to the method described by Bergmeyer, et. al.(1)

Reference:1. Bergmeyer, et. al., Method of Enzymatic

Analysis, 3rd Ed., (1983), 282-283.Storage: -20°C

26119 100µg

PhytohemagglutininSee Phaseolus Vulgaris Agglutinin, page 270

PIPES(Piperazine-N,N'-bis-[2-Ethanesulfonic Acid])

C8H

18N

2O

6S

2

Formula Weight: 302.37PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 6.80 ± 0.15A (250 nm, 5% in 1N NaOH, 1 cm): ≤ 0.20Loss on Drying: ≤ 0.5%Iron (Fe): ≤ 30 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #5625-37-6

20426 25gm 100gm 1kg

PIPES, Dipotassium Salt(Piperazine-N,N'-bis-[2-Ethanesulfonic Acid], Dipotassium Salt)

C8H

16N

2O

6S

2K

2

Formula Weight: 378.55PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (dry basis)Identity: By IRA (260 nm, 5%, 1 cm): ≤ 0.1Moisture (KF): ≤ 10.0%

20429 10gm 25gm 100gm 1kg

PIPES, Disodium SaltC

8H

16N

2O

6S

2Na

2

Formula Weight: 346.33PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98.0% (dry basis)Identity: By IRpKa (20°C): 6.80 ± 0.15A (250 nm, 0.1M, 1 cm): ≤ 0.1Loss on Drying: ≤ 10.0%CAS #76836-02-7

20428 10gm 25gm 100gm 1kg

PIPES, Sesquisodium Salt, Monohydrate

C8H

16.5O

6N

2S

2•1.5Na•H

2O

Formula Weight: 353.36PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98.0% (dry basis)pKa (20°C): 6.80 ± 0.15Identity: By IRA (260 nm, 0.1M, 1 cm): ≤ 0.05pH (0.1M, H

2O): 6.5 - 6.9

Loss on Drying: ≤ 7.0%Chloride (Cl): ≤ 0.1%Sodium (Na): ≤ 11.0%Note: This product contains approximately 1.5

equivalents of sodium per molecule of PIPES as well as approximately 1 molecule of water of crystallization. Variation may be as much as ±10% from exactly 1.5 equivalents of sodium per mole.

CAS #100037-69-2

20427 25gm 100gm 1kg

PMSFSee Phenylmethyl Sulfonyl Fluoride, page 272

PNPGSee 4-Nitrophenyl-β-D-Galactopyranoside,

page 264

Polyadenylic Acid, Potassium SaltSee Molecular Biology Products & Kits Section,

page 92

Polyanetholesulfonic Acid, Sodium Salt

(C10

H11

NaO4S)

n

Formula Weight: (250.25)n

CAS #55963-78-5

20450 5gm 25gm 100gm

Bioc

hem

ical

sBiochemicals

110 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Polydeoxy (Inosinate-Cytidylate) Acid, Sodium Salt

PRODUCT SPECIFICATIONSDescription: This double-stranded polymer was

prepared by the action of highly purified DNA polymerase upon a mixture of deoxyinosine triphosphate and deoxycytidine triphosphate using a primer of strictly alternating dI and dC. After enzymatic synthesis the polymer was extracted with chloroform/isoamyl alcohol to remove protein, dialyzed against aqueous sodium chloride, then exhaustively dialyzed against deionized water to remove salt. The product was then lyophilized.

Form: Lyophilized powderAbsorbance per unit weight found:

13.0 - 20.8 A260

units/mgUV Absorption Spectrum: λ

max: 248 - 253 nm

λmin

: 224 - 229 nmSpectral Ratios: A

290/A

260: 0.30 - 0.41

A280

/A260

: 0.70 - 0.72 A

270/A

260: 0.82 - 0.87

A250

/A260

: 1.19 - 1.26All UV absorbance data were obtained in 0.02M

phosphate buffer, pH 7.0.Storage:-20°C

20539 5units 25units 100units

Polyethylene Glycol 400(PEG 400)

Formula Weight: 380 - 420PRODUCT SPECIFICATIONSForm: Clear colorless viscous liquidDensity (d20

4): 1.12 - 1.13

Refractive Index (n20d): 1.465 - 1.469

Viscosity (20°C): 102 - 120 mpasCAS #25322-68-3

19957 500ml 1L

Polyethylene Glycol 6000, Flakes(PEG 6000)

Formula Weight: 5400 - 6600PRODUCT SPECIFICATIONSForm: White or slightly yellowish flakesSolubility (50%, Hot H


Melting Point: Approx. 60°CApplications:•Differential precipitation of DNA•Enhances hybridization rate of nucleic acids•Improves efficiency of end-labeling with T4

Polynucleotide Kinase(1,2)

•Used in ligation of blunt ended DNA•Precipitates bacteriophage ± particles and

plasmid DNA•Used in preparing single-stranded M13 DNA•Promotes cell fusionPEG, with magnesium, causes DNA to undergo

a “psi” transition and it collapses into a highly condensed state(1). This results in macromolecular crowding(2) and increased efficiency in end-labeling.

References:1. Lerman, L.S. (1971) Proc Natl. Acad Sci, 68,

1886.2. Harrison, B. and Zimmerman, S. B., (1986)

Anal Biochem, 158, 307.CAS #25322-68-2

19972 500gm 1kg 5kg

Polyethylene Glycol 8000, Flakes(PEG 8000)

ULTRAPUREApprox. M.W.=8,000PRODUCT SPECIFICATIONSForm: White flakesApplications:•Differential precipitation of DNA•Enhances hybridization rate of nucleic acids•Improves efficiency of end-labeling with T4




a “psi” transition and it collapses into a highly condensed state(1). This results in macromolecular crowding(2) and increased efficiency in end-labeling and blunt ligation.

References:1. Lerman, L. S. (1971) Proc Natl. Acad Sci, 68,


Anal Biochem, 158, 307-315.CAS #25322-68-3

19959 500gm 1kg 5kg

Polyethylene Glycol 8000, Powder(PEG 8000)

Molecular Weight Range: 7,000 - 9,000PRODUCT SPECIFICATIONSForm: White to off-white powderSolubility (50%, hot H


Melting Point: 60 - 64°CApplications:•Differential precipitation of DNA•Enhances hybridization rate of nucleic acids•Improves efficiency of end-labeling with T4




a “psi” transition and it collapses into a highly condensed state(1). This results in macromolecular crowding(2) and increased efficiency in end-labeling and blunt ligation.

References:1. Lerman, L.S. (1971) Proc Natl. Acad Sci, 68,


Anal Biochem, 158, 307.CAS #25322-68-3

19966 500gm 1kg 5kg

Biochemicals

Biochemicals


Polygalacturonic AcidCAS #25990-10-7

20595 25gm 100gm 500gm

Polymixin B SulfateUSBioAnalyzedPRODUCT SPECIFICATIONSForm: White to buff colored powderActivity: ≥ 6000 Polymixin B units/mg (dry basis) ≥ 5580 Polymixin B units/mg (as is)Identity (A, B, C): Passes testspH (5 mg/ml): 5.0 - 7.5Loss on Drying: ≤ 7.0%Content of Phenylalanine: 9%-12%CAS #1405-20-5

20551 5mu 10mu 100mu

Polyoxyethylene SorbitanSee Tween® 20, page 304See Tween 40, page 304See Tween 80, page 304

Polyvinyl Pyrrolidone (PVP)See PVP-K-15, page 279See PVP-K-30, page 279See PVP-K-90, page 280

Ponceau S, Sodium Salt


22H

12N

4O

13S

4Na

4

Formula Weight: 760.57Application: •As a protein stain for serum proteins separated

by agarose gel and cellulose acetate electrophoresis

CAS #6226-79-5

32819 10gm 50gm

Potassium AcetateACS Reagent GradeCH

3COOK

Formula Weight: 98.14PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0% (as is)pH (5%, H

2O, 25°C): 6.5 - 9.0

Insoluble Matter: ≤ 0.005%Chloride (Cl): ≤ 0.003%Phosphate (PO

4): ≤ 0.001%

Sulfate (SO4): ≤ 0.002%

Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 5 ppmCalcium (Ca): ≤ 0.005%Magnesium (Mg): ≤ 0.002%Sodium (Na): ≤ 0.03%

20602 100gm 500gm 2.5kg

Potassium Acetate (KOAc), 3M Solution, pH 5.5

ULTRAPUREMB GradeForm: 3M solution of potassium acetate (KOAc)

in high purity dH2O, pH 5.5. Solution is 0.2 µm

filtered and dispensed into durable, square Nalgene bottles.

pH: 5.5 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test

75898 100ml 500ml

Potassium AspartateSee L-Aspartic Acid, Monopotassium Salt,

page 194

Potassium Chloride

ULTRAPUREACS Reagent GradeKClFormula Weight: 74.55PRODUCT SPECIFICATIONSAssay: 99.0 - 100.5%pH (5%, H

2O, 25°C): 5.4 - 8.6

Insoluble Matter: ≤ 0.005%Iodide (I): ≤ 0.002%Bromide (Br): ≤ 0.01%Chlorate & Nitrate (NO

3): ≤ 0.003%

Nitrogen Cmpds. (N): ≤ 0.001%Phosphate (PO

4): ≤ 5 ppm

Sulfate (SO4): ≤ 0.001%

Barium (Ba):Passes testHeavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 3 ppmCalcium (Ca): ≤ 0.002%Magnesium (Mg): ≤ 0.001%Sodium (Na): ≤ 0.005%CAS #7447-40-7

20598 500gm 1kg 5kg

Potassium ChlorideUSBioAnalyzedKCIFormula Weight: 74.55PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 100.5%Identity: Passes testsAcidity or Alkalinity: Passes testLoss on Drying: ≤ 1.0%Iodate or Bromide: Passes testCalcium and Magnesium: Passes testSodium: Passes testHeavy Metals: ≤ 0.001%O.V.I.: Meets the requirementsCAS #7447-40-7

20639 500gm 2.5kg

Bioc

hem

ical

sBiochemicals

11� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Potassium Chloride (KCl), 2M Solution

ULTRAPUREMB GradeForm: 2M solution of potassium chloride (KCl) in




75896 100ml

Potassium GlutamateSee L-Glutamic Acid, Potassium Salt, page 232

Potassium IodideACS Reagent GradeKIFormula Weight: 166.00PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%pH (5%, H

2O, 25°C): 6.0 - 9.2

Insoluble Matter: ≤ 0.005%Loss on Drying: ≤ 0.2%Chloride and Bromide (Cl): ≤ 0.01%Iodate (IO

3): ≤ 3 pp

Nitrogen Compounds (N): ≤ 0.001%Phosphate (PO

4): ≤ 0.001%

Sulfate (SO4): ≤ 0.005%

Barium (Ba): ≤ 0.002%Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 3 ppmCalcium (Ca): ≤ 0.002%Magnesium (Mg): ≤ 0.001%Sodium (Na): ≤ 0.005%

20633 100gm 500gm

Potassium IodideUSBioAnalyzedKIFormula Weight: 166.00PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 101.5% (dry basis)Identity: Passes testAlkalinity: Passes testLoss on Drying (105°C): ≤ 1.0%Iodate (IO

3): ≤ 4 ppm

Nitrate, Nitrite, and Ammonia: Passes testThiosulfate and Barium (Ba): Passes testHeavy Metals (Pb): ≤ 0.001%Residual Solvents: Meets the requirementsCAS #7681-11-0

20641 100gm 500gm 2.5kg

Potassium NitrateACS Reagent GradeKNO

3


2O, 25°C): 4.5 - 8.5

Insoluble Matter: ≤ 0.005%Chloride (Cl): ≤ 0.002%Iodate (IO

3): ≤ 5 ppm

Nitrite (NO2): ≤ 0.001%


Sulfate (SO4): ≤ 0.003%

Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 3 ppmCalcium (Ca): ≤ 0.005%Magnesium (Mg): ≤ 0.002%Sodium (Na): ≤ 0.005%

20271 500gm 2.5kg

Potassium Phosphate, Dibasic

ULTRAPUREACS Reagent GradeK

2HPO

4


2O, 25°C): 8.5 - 9.6

Insoluble Matter: ≤ 0.01%Loss on Drying: ≤ 1.0%Chloride (Cl): ≤ 0.003%Nitrogen Compds. (N): ≤ 0.001%Sulfate (SO

4): ≤ 0.005%

Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 0.001%Sodium (Na): ≤ 0.05%Storage: Protect from moisture (product is

deliquescent).CAS #7758-11-4

20274 100gm 500gm 1kg 2.5kg

Potassium Phosphate, Dibasic(Dipotassium Phosphate)

CP GradeK

2HPO

4

Formula Weight: 174.18PRODUCT SPECIFICATIONSForm: White deliquescent powderAssay: ≥ 98.0% K

2HPO

4 (dry basis)

Arsenic (As): ≤ 3 ppmFluoride (F): ≤ 10 ppmInsol. Substances: ≤ 0.2%Lead (Pb): ≤ 2 ppmLoss on Drying: ≤ 2.0%Note: This product is a general laboratory reagent

suitable for most laboratory animal diets where trace element deficiencies are not required. One molar stock solutions of this product may be slightly hazy. Where use of a high quality research buffer is required, USB recommends the use of our ACS Reagent Grade phosphate buffers.

Storage: Dessicate (product is deliquescent).

20276 500gm 1kg 10kg

Biochemicals

Biochemicals


Potassium Phosphate, Dibasic, Anhydrous

USBioAnalyzedK

2HPO

4

Formula Weight: 174.18PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.0 - 100.5% K

2HPO

4 (dry basis)

Identity: Passes testspH (5%, H

2O): 8.5 - 9.6

Loss on Drying: ≤ 1.0%Insoluble Substances: ≤ 0.2%Carbonate: Passes test Chloride: ≤ 0.03% Sulfate: ≤ 0.1% Arsenic: ≤ 3 ppm Iron: ≤ 0.003% Sodium: Passes test Heavy Metals: ≤ 0.001% Limit of Fluoride: ≤ 0.001% Limit of Monobasic and Tribasic Salt: Passes testStorage: Ambient, protect from moisture

32144

Potassium Phosphate, Monobasic, Anhydrous

ULTRAPUREACS Reagent GradeKH

2PO

4


2O, 25°C): 4.1 - 4.5

Insoluble Matter: ≤ 0.01%Loss on Drying: ≤ 0.2%Chloride (Cl): ≤ 0.001%Nitrogen Compds. (N): ≤ 0.001%Sulfate (SO

4): ≤ 0.003%

Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.002%Sodium (Na): ≤ 0.005%CAS #7778-77-0

20227 100gm 500gm 1kg

Potassium Phosphate, MonobasicCP GradeKH

2PO

4

Formula Weight: 136.09PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% (dry basis)Arsenic (As): ≤ 3 ppmFluoride (F): ≤ 10 ppmInsoluble Substances: ≤ 0.2%Lead (Pb): ≤ 2 ppmLoss on Drying: ≤ 1%Note: This product is a general laboratory reagent


20228 100gm 500gm 1kg 10kg

Potassium Phosphate Monobasic Anhydrous

USBioAnalyzedKH

2PO

4

Formula Weight: 136.09PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.0 - 100.5% KH

2PO

4 (dry basis)

Identity: Passes testsLoss on Drying: ≤ 1.0%Insoluble Substances: ≤ 0.2%Arsenic (As): ≤ 3 ppmLead (Pb): ≤ 0.002%Heavy Metals (as Pb): ≤ 0.002%Limit of Fluoride: ≤ 0.001%O.V.I.: Meets requirements

32147

Potassium PyruvateSee Pyruvic Acid, Potassium Salt, page 280

Potassium TelluriteK

2TeO

3

Formula Weight: 253.79PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: ≥ 96.0%Identity: By IRSolubility (1%, H

2O): Completely soluble

CAS #7790-58-1

20635 10gm 25gm 100gm

Potassium ThiocyanateACS Reagent GradeKSCNFormula Weight: 97.18PRODUCT SPECIFICATIONSForm: Colorless or white crystalsAssay: ≥ 98.5%pH (5%, H

2O, 25°C): 5.3 - 8.7

Insoluble in Water: ≤ 0.005%Chloride (Cl): ≤ 0.005%Sulfate (SO

4): ≤ 0.005%


Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 2 ppmSodium (Na): ≤ 0.005%Iodine-Consuming Substances: Passes test

20273 500gm 2.5kg

PPO(2,5-Diphenyloxazole)

C15

H11

NOFormula Weight: 221.25PRODUCT SPECIFICATIONSForm: Fine, white powderAssay: ≥ 99% Identity: By IRMelting Point: 70 - 72°CLoss On Drying: ≤ 0.3% Residue On Ignition: ≤ 0.01%CAS #92-71-7

20642 25gm 50gm 100gm 500gm 1kg

Bioc

hem

ical

sBiochemicals

11� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

PrednisoloneUSBioAnalyzedC

21H

28O

5

Formula Weight: 360.47PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderIdentity: (A, B): Passes testsAssay: 97.0 - 102.0% (dry basis)[α]25

D : + 97° to +103° (c=1 in dioxane)

Loss on Drying: ≤ 1.0%Residue on Ignition: NegligibleSelenium: ≤ 0.003%Ordinary Impurities: Passes test

20650 1gm 10gm 25gm

ProgesteroneUSBioAnalyzedC

21H

30O

2

Formula Weight: 314.46PRODUCT SPECIFICATIONSForm: White to cream colored powderAssay: 97.0 - 103.0% (dry basis)Identity: By IR[α]25

D : +175° to +183° (c=2 in dioxane,

dry basis)Melting Point: 126 - 131°CLoss on Drying: ≤ 0.5%CAS #57-83-0

20665 5gm 25gm 100gm

D-ProlineC

5H

9NO

2


20723 1gm 5gm 10gm

DL-ProlineC

5H

9NO

2


20725 5gm 25gm 100gm

L-ProlineUSBioAnalyzed(C

4H

8N)COOH

Formula Weight: 115.13PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 101.5% (dry basis)Identity: By IRChromotographic Purity: Passes test[α]20

D : -84.3° to -86.3° (c=4 in H

2O)


4): ≤ 0.03%

Heavy Metals (Pb): ≤ 0.0015%Chloride (Cl): ≤ 0.05%Iron (Fe): ≤ 0.003%Chromatographic Purity: Meets requirementsO.V.I.: Meets requirementsCAS #147-85-3

20730 10gm 25gm 100gm 1kg

L-Proline-p-NitroanilideC

11H

12N

3O

3


20740 500mg 1gm 5gm

r-hProMMP-7(Promatrilysin)

See Human Promatrilysin, Recombinant, page 241

Propionic Acid, Calcium Salt(CH

3CH

2COO)

2Ca


20765 500gm 1kg

Propionic Acid, Sodium Salt(Sodium Propionate)

CH3CH

2COONa

Formula Weight: 96.06PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 100.5%Identity: By IR Moisture (KF): ≤ 1%Arsenic (As): ≤ 2 ppmIron (Fe) ≤ 30 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #137-40-6

20766 1kg

n-Propyl Gallate(HO)

3C

6H

2COOCH

2CH

2CH

3

Formula Weight: 212.20PRODUCT SPECIFICATIONSForm: Beige powderAssay (UV): 98 - 102% (as is)Identity: By IR Melting Point: 146° - 150°CCAS #121-79-9

20770 100gm 500gm

Protamine SulfateSource: SalmonPRODUCT SPECIFICATIONSForm: White to off-white powderAssay: Each mg neutralizes not less than 100

USP Heparin Units (dry basis)Loss on Drying: ≤ 5.0%Nitrogen (N): 22.5 - 25.5% (dry basis)Sulfate (SO

4): 16.0 - 22.0% (dry basis)

CAS #9009-65-8

20795 5gm 25gm 100gm

Biochemicals

Biochemicals


Protein Determination Reagent

ULTRAPUREForm: One bottle of Protein Determination

Reagent is sufficient for 500 standard assays or 2500 microassays

Application: •This protein dye reagent allows rapid and

simple determination of the protein content of various solutions. This reagent is based on the Bradford(1,2) protein assay method and is supplied as a five-fold concentrate. It can be used either in a standard assay procedure for protein concentrations between 100 µg/ml and 1 mg/ml or in a microassay procedure for concentrations between 1 µg/ml and 10 µg/ml. The assay procedure consists of mixing the reagent with sample and blank, incubating (usually 5 - 20 min), and measuring the absorbance of the sample and blank at 595 nm. The assay procedure is supplied with every bottle.

References:1. Bradford, M. M. (1976) Anal. Biochem. 72,

248-254.2. Bradford, M. M. and Williams, W. L. (1977) U.S.

Patent No. 4,023,933.

30098 500ml

ProteinaseSource: Bacillus subtilisPRODUCT SPECIFICATIONSForm: White crystalline powderUnit Definition: One unit is that amount of enzyme

which produces in one minute, under the conditions of the test, a hydrolysate whose absorbance at 275 nm is the same as that of a tyrosine solution containing 1.50 µg tyrosine per ml.

20815 50gm 100gm

Proteinase KSource: Tritirachium albumPRODUCT SPECIFICATIONSForm: Lyophilized powderConcentration: 20 - 50 units/mgMolecular Weight: 28.9 kDaUnit Definition: One unit is the amount of enzyme

that liberates folin positive amino acids and peptides corresponding to 1 µmol tyrosine in 1 min at 37°C using hemoglobin as substrate.

Application: •Proteinase K inactivates DNase and RNase from

most mammalian cells and microorganisms in the presence of 0.5 - 1% SDS. It can also be used for research involving protein structure because of its cleavage specificity.

Storage: 4°C

76230Y 100mg76230Z 500mg76230 1gm(2x500mg)

pUC 18 DNASee Molecular Biology Products & Kits Section,

page 92

pUC 19 DNASee Molecular Biology Products & Kits Section,

page 92

Purification SolutionsPhenol, pH 4.5, Equilibrated, page 271Phenol, pH 8.0, Equilibrated, page 271Phenol:Chloroform:Isoamyl Alcohol (25:24:1),

page 271

Purine, Free BaseC

5H

4N

4


20835 250mg 1gm

Putrescine, Dihydrochloride(1,4-Diamino-Butane Dihydrochloride)

NH2(CH

2)4NH

2•2HCl

Formula Weight: 161.07PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 99.0%Identity: By IRChromatography (TLC): HomogeneousStorage: -20°C, protect from moisture.CAS #333-93-7

20850 5gm 25gm

PVP-K-15(Polyvinylpyrrolidone)

Formula Weight: 10,000 (average)PRODUCT SPECIFICATIONSForm: Off-white powderActive content: ≥ 95%K-value (viscosity of 1% solids w/v solution):

13 - 19Moisture: ≤ 5.0%% Unsaturation (calculated as % vinyl

pyrrolidone): ≤ 0.5%

20610 100gm 500gm 1kg


Formula Weight: 40,000 (average)PRODUCT SPECIFICATIONSForm: Off-white powderActive content: ≥ 95%K-value (viscosity of 1% solids w/v aqueous

solution): 26 - 34Moisture: ≤ 5.0%% Unsaturation (calculated as %

vinylpyrrolidone): ≤ 0.5%CAS #9003-39-8

20611 1kg

Bioc

hem

ical

sBiochemicals

116 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0


ULTRAPUREFormula Weight: 360,000 (average)PRODUCT SPECIFICATIONSForm: Off-white powderActive content: ≥ 95%K-value (viscosity of 1% solids w/v aqueous

solution): 80 - 100Moisture (KF): ≤ 5.0%% Unsaturation (calculated as %

vinylpyrrolidone): ≤ 0.5%Application:•Used in nucleic acid hybridization buffer

20612 100gm 1kg

Pyridoxal-5'-Phosphate, Monohydrate(Pyridoxyl-5'-Phosphoric Acid; Codecarboxylase)

C8H

10NO

6P•H

2O

Formula Weight: 265.16PRODUCT SPECIFICATIONSForm: White to pale yellow powderAssay: ≥ 98.0%Identity: By IRMoisture: 6 - 9%Free Phosphate (PO

4): ≤ 1.0%

Pyridoxal: ≤ 0.5%CAS #41468-25-1

20895 1gm 5gm 25gm

Pyridoxamine, Dihydrochloride, Monohydrate

C8H

12N

2O

2•2HCl•H

2O

Formula Weight: 259.13PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 97%Storage: -20°C, protect from moisture.CAS #524-36-7

20925 1gm

Pyridoxine, Hydrochloride(Vitamin B

6 ; Pyridoxyl HCl)

USBioAnalyzedC

8H

11NO

3•HCl

Formula Weight: 205.64PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.0 - 102.0% (dry basis)Identity (A, B): Passes testsLoss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 0.003%Chloride (Cl): 16.9 - 17.6% (dry basis)O.V.I.: Meets requirementsCAS #58-56-0

20900 10gm 25gm 50gm 100gm 500gm

Pyrimidine, Free BaseC

4H

4N

2

Formula Weight: 80.09Liquid-AmpulesCAS #289-95-2

20940 500mg

Pyruvate Kinase(E.C.2.7.1.40)Source: Rabbit MusclePRODUCT SPECIFICATIONSForm: Lyophilized, salt freeActivity: ≥ 250 units/mgUnit Definition: One unit oxidizes 1 µmol NADH/min at 25°C, pH 7.4.Contaminating Activities: CK: < 0.005% LDH: < 0.005% GK: < 0.005%Storage: -20°CCAS #9001-59-6

20975 300units 1,500units 15,000units

Pyruvate Kinase(E.C.2.7.1.40)Source: Rabbit MusclePRODUCT SPECIFICATIONSForm: Ammonium sulfate suspensionActivity: ≥ 200 units/mg proteinContaminating Activities: MK: ≤ 0.01% α-GDH: ≤ 0.01% Enolase: ≤ 0.01% GAPDH: ≤ 0.01% PGM: ≤ 0.01% LDH: ≤ 0.02%Unit Definition: One unit reduces 1 µmol of

phosphoenolpyruvate/min at 25°C, pH 7.5.Note: The above product is available in


Storage: 4°C


Pyruvic Acid, Free AcidCH

3COCOOH


20985 10gm 25gm 100gm

Pyruvic Acid, Potassium Salt(Potassium Pyruvate)

Reagent GradeC

3H

3O

3K

Formula Weight: 126.15PRODUCT SPECIFICATIONSForm: White crystalline powderIdentity: By IRAssay: ≥ 98%Solubility (10%, H

2O): Passes test

20990 10gm 25gm 100gm

Biochemicals

Biochemicals


Pyruvic Acid, Sodium Salt(Sodium Pyruvate)

CH3COCOONa

Formula Weight: 110.04PRODUCT SPECIFICATIONSForm: White to slightly yellow crystalline powderAssay: ≥ 98.5%Identity: By IRMoisture (KF): ≤ 1.0%Chloride (Cl): ≤ 30 ppmSulfate (SO

4): ≤ 0.01%


20995 5gm 10gm 25gm 100gm 500gm

Quercetin, DihydrateC

15H

10O

7•2H

2O

Formula Weight: 338.27PRODUCT SPECIFICATIONSForm: Bright yellow powderIdentity: By IRMoisture (KF): ≤ 14.0%CAS #6151-25-3

21000 25gm 100gm

D-(+)-Raffinose, PentahydrateC

18H

32O

16•5H

2O


D : +104.9° ± 1.3° (c=4 in H

2O & NH

3)

(corrected to a theoretical pentahydrate)Loss on Drying: ≤ 15.3%Residue on Ignition: ≤ 0.05%Iron (Fe): ≤ 5 ppmHeavy Metals (Cu): ≤ 10 ppmArsenic (As): ≤ 0.5 ppmCAS #17629-30-0

21060 25gm 100gm 500gm 1kg

RapidGelTM DNA Sequencing Gel Solutions

ULTRAPUREMB GradeForm: Pre-mixed, liquid acrylamide in ready-to-

use form for Ultrapure DNA sequencing gels. Each formulation contains 7M urea and either TBE buffer.


To use: De-gas solution by placing under gentle vacuum for 10 min at room temperature. Add 600 µl 10% ammonium persulfate and 60 µl TEMED per 100 ml gel solution to polymerize. Allow to polymerize at room temperature from one hour to overnight. For polymerization within 30-45 min, add 1 ml 10% ammonium persulfate and 100 µl TEMED per 100 ml gel solution. Pour gel immediately. Be sure to match gel with TBE running buffer, PN 75891

Note: Urea may crystallize out of solution when the gel mix is stored as recommended at 4°C. This is normal and will not affect performance. If this occurs, warm the gel mix at 37°C for 10 min or until the urea redissolves. Mix gently. Cool to room temperature before adding the ammonium persulfate and TEMED.

Storage: 4°CRapidGel Formulations:

RapidGel4%LiquidAcrylamide,TBE75841 500mlRapidGel6%LiquidAcrylamide,TBE75843 500mlRapidGel8%LiquidAcrylamide,TBE75844 500ml

RapidGelTM 40% Liquid Acrylamide Stock Solution

ULTRAPUREMB GradeForm: Pre-mixed, 40% liquid acrylamide

(19:1 acrylamide:bis-acrylamide ratio) in ready-to-use form for Polyacrylamide Gel Electrophoresis (PAGE). Stock solution provides flexibility for different acrylamide percentages in a wide variety of gel applications. This formulation does not contain urea.

Testing: Functionally tested in gel electrophoresis.

To use: Dilute 40% stock solution to desired concentration with appropriate running buffer for PAGE. To make 100 ml of a sequencing gel solution containing 7-8.3M urea, add an appropriate volume of 40% RapidGel solution, 10 ml of 10X (or 5 ml of 20X) running buffer, 42-50 gm of urea and high purity dH

2O to

100 ml in a clean, graduated cylinder. Stir and warm solution at 35-45°C to dissolve urea. (Do not microwave.) Cool to room temperature. Filter through a 0.2 µm filter and leave under gentle vacuum for 10 min to de-gas. Add 600 µl 10% ammonium persulfate and 60 µl TEMED per 100 ml gel solution to polymerize. Allow to polymerize at room temperature from one hour to overnight. For polymerization within 30-45 min, add 1 ml 10% ammonium persulfate and 100 µl TEMED per 100 ml gel solution. Pour gel immediately.

Storage: 4°C

75848 500ml

Bioc

hem

ical

sBiochemicals

118 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

RapidGelTM-XL 6% Liquid Acrylamide DNA Sequencing Gel, TBE Formulation

ULTRAPUREMB GradeForm: Pre-mixed, liquid acrylamide in ready-

to-use form for Ultrapure DNA sequencing gels. Contains TBE Buffer and 7M urea. The most commonly requested gel formulation, RapidGel-XL, 6%, is a high resolution matrix for DNA sequencing, yielding up to 40% more readable sequence per gel when using either radioactive or fluorescent labeling methods. No gel fixing is necessary.


To use: Intended for use with 1X TBE Buffer. De-gas solution by placing under gentle vacuum for 10 min at room temperature. Add 600 µl 10% ammonium persulfate and 60 µl TEMED per 100 ml gel solution to polymerize. Allow to polymerize at room temperature from one hour to overnight. For polymerization within 30-45 min, add 1 ml 10% ammonium persulfate and 100 µl TEMED per 100 ml gel solution. Pour gel immediately. Do not fix gel.

Note: Urea may crystallize out of solution when the gel mix is stored as recommended at 4°C. This is normal and will not affect performance. If this occurs, warm the gel mix at 37°C for 10 min or until the urea redissolves. Mix gently. Cool to room temperature before adding the ammonium persulfate and TEMED.

Use with corresponding TBE Running Buffer: 10X Ready Mixed Powder, PN 70454, packaged in 6 x 200 ml bottles or TBE Buffer, 5X Solution, PN 75891, packaged in 1 and 5 liter sizes.

Storage: 4°C

75861 500ml

RapidGelTM-XL 40% Liquid Acrylamide Stock Solution

ULTRAPUREMB GradeForm: Pre-mixed, 40% liquid acrylamide in

ready-to-use form for Polyacrylamide Gel Electrophoresis (PAGE). Stock solution provides flexibility for different acrylamide percentages in a wide variety of gel applications. RapidGel-XL is a high resolution matrix for gel electrophoresis. When used for sequencing gels, up to 40% more readable sequence per gel may be achieved. No gel fixing is necessary. This formulation does not contain urea.


To use: RapidGel-XL is used in the same way as regular RapidGel 40% Liquid Acrylamide Stock Solution except there is no need to fix the gel.

Storage: 4°C

75863 100ml 500ml

RapidRunTM Agarose Buffer, 20X Solution

ULTRAPUREMB GradeForm: RapidRun Agarose Buffer allows for gels

to be run in one-fourth the time required for standard buffers, such as TAE and TBE. The buffer is a non-borate weak acid that enables high voltage and more rapid electrophoretic runs. Temperature seldom exceeds 38°C during high voltage runs, minimizing the band diffusion and gel degradation commonly associated with TAE and TBE under the same high voltage conditions.

20X RapidRun Agarose Buffer consists of 1.78M Tris, 0.57M Taurine, and 0.01M EDTA. The solution is 0.2 µm filtered.

pH (1:20, 25°C): 8.9 + 0.1Conductivity (1X): 830 + 100 µmhos/cmTesting: Meets or exceeds functional test criteria

for high voltage (300v, 15 min) mini-agarose gel electrophoresis.

Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes testApplications:1. High voltage, fast agarose gel electrophoresis

(20-30 volts/cm).2. This buffer is compatible with commercial

gel extraction kits. However, the pH should be adjusted with sodium acetate, pH 5.0, as recommended by the manufacturer.

Note: 1 ml of RapidRun Loading Dye (PN 77524) is included with each pack size. The dye front migrates lower than 50 bases.

Storage: Ambient. Crystals which form at low temperatures can be re-dissolved by warming briefly.

77523 1L 5L

RapidRunTM Loading Dye

ULTRAPUREMB GradeForm: 5X loading dye (0.05% dye in 50%

glycerol).Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes testApplication: •Used as a loading dye designed for high voltage

agarose gel electrophoresis with buffers such as RapidRun Agarose Buffer (PN 77523). It may also be used for standard voltage gel electrophoresis. RapidRun Loading Dye develops an intense orange color in the presence of RapidRun Agarose Buffer. The dye front migrates lower than 50 bases.

77524 1ml 5ml

ReserpineC

33H

40N

2O

9


21110 1gm

ResorcinolC

6H

4(OH)

2


21115 500gm

L-Rhamnose Monohydrate(6-Deoxy-L-Mannose)

C6H

12O

5•H

2O


D : +8.5° - +9.5°

Moisture (KF): ≤ 11.5%Residue on Ignition: ≤ 0.1%Solubility: Passes testIron (Fe): ≤ 5 ppmArsenic (As): ≤ 0.5 ppmHeavy Metals (Cu): ≤ 10 ppmCAS #10030-85-0

21121 5gm 10gm 25gm 500gm

Biochemicals

Biochemicals


Rhodamine-B-IsothiocyanateC

29H

30N

3O

3SCl


21125 100mg 1gm 5gm

Riboflavin(Vitamin B

2 ; Vitamin G)

USBioAnalyzedC

17H

20N

4O

6

Formula Weight: 376.36PRODUCT SPECIFICATIONSForm: Yellow to orange/yellow crystalline powderAssay: 98.0 - 102.0% (dry basis)Identity: By IR[α]25

D : -115° to -135° (c=0.5 in 0.05M NaOH)

Loss on Drying: ≤ 1.5%Residue on Ignition: ≤ 0.3%Limit of Lumiflavin: Passes testO.V.I.: Meets requirementsCAS #83-88-5

21145 25gm 100gm 500gm 1kg

Riboflavin-5'-Phosphate, Sodium Salt(Flavin Mononucleotide; FMN)

USBioAnalyzedC

17H

20N

4O

9PNa•2H

2O

Formula Weight: 514.36 (dihydrate)PRODUCT SPECIFICATIONSForm: Yellow crystalline powderAssay (fluorometric): 73.0 - 79.0% C

17H

20N

4O

6

(dry basis)Identity (A, B): Passes testspH (1%, H

2O): 5.0 - 6.5

[α]25D : +37.0° to +42.0° (c=1.5 in 5N HCl)

Loss on Drying: ≤ 7.5%Residue on Ignition: ≤ 25.0%Lumiflavin: Passes testFree Phosphate: Passes test (≤ 1.0%)Free Riboflavin and Riboflavin Diphosphates:

≤ 6.0% eachO.V.I.: Meets requirementsCAS #130-40-5

21150 10gm 25gm 100gm 500gm

D-(–)-RiboseC

5H

10O

5

Formula Weight: 150.13PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 98.0% (dry basis)[α]20

D : -20.4° ± 0.4° (c=2 in H

2O, NH

3)

Loss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Arsenic (As): ≤ 0.5 ppmIron (Fe): ≤ 5 ppmHeavy Metals (Cu): ≤ 10 ppmCAS #50-69-1

21220 5gm 10gm 25gm 100gm

D-(–)-Ribose-5-Phosphate, Disodium Salt

C5H

9O

8PNa

2


21235 250mg 500mg 1gm 5gm

RifampinC

43H

58N

4O

12

Formula Weight: 822.94PRODUCT SPECIFICATIONSForm: Reddish brown crystalline powderAssay: 95.0 - 103.0% of C

43H

58N

4O

12 (dry basis)

93.0 - 103.0% of C43

H58

N4O

12 (as is)

Identity: By IRpH (1%, H

2O): 4.5 - 6.5

Loss on Drying: ≤ 2.0%Related Substances: Passes testMode of Action: Inhibits RNA synthesis by

binding to and inhibiting the β subunit of RNA polymerase.

CAS #13292-46-1

21246 1gm 5gm

RNA, Free AcidSource: Torula YeastPRODUCT SPECIFICATIONSForm: White powderMoisture: ≤ 8.0%Nitrogen: ≥ 15.3% (dry basis)Phosphorous: ≥ 9.0% (dry basis)

21185 25gm 100gm 200gm 1kg

RNA, Sodium SaltSource: YeastPRODUCT SPECIFICATIONSForm: White powderMoisture: 4.0 - 8.0%Phosphorous: ≥ 8.0%Nitrogen: ≥ 14.5%pH (1% H

2O): 6.5 ± 0.5

Biuret test: NegativeCAS #73049-77-1

21190 25gm 100gm 1kg

RNA Solutions Kit

ULTRAPUREMB GradeForm: A selection of 8 Convenience Reagent

Solutions, 100 ml each. 0.5M EDTA, PN 15694 2M KCl, PN 75896 1M MgCl

2, PN 78641

5M NaCl, PN 75888 5M NH

4OAc, PN 75901

1M Tris, pH 7.0, PN 22637 1M Tris, pH 8.0, PN 22638 Water, RNase-Free, DEPC Treated, PN 70783

75903 1Kit

RNase A, Lyophilized(E.C. 3.1.4.22)Source: Bovine pancreasForm: Lyophilized powderUnit Definition:One unit is that amount of enzyme

causing the hydrolysis of RNA at a rate such that K equals unity at 25°C and pH 5.0.

Storage: -20°C, desiccated

21195 100mg 1gm 5gm

Bioc

hem

ical

sBiochemicals

1�0 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Safflower Oil

21310 500ml

SalicinC

13H

18O

7


D : -61° ± 2° (c=5 in H

2O)

Melting Point: 195 - 205°CLoss on Drying: ≤ 0.3%CAS #138-52-3

21315 5gm 10gm 25gm 100gm 250gm

SAMe-PTSSee S-Adenosyl-L-Methionine Sulfate

p-Toluenesulfonate, page 175

SaponinPRODUCT SPECIFICATIONSForm: Tan powderIdentity: By IRSolubility (20% in H

2O): Clear to hazy solution

pH (20% in H2O): 4.50 ± 0.3

Residue on Ignition: ≤ 10%

21435 100gm

SDSSee Sodium Dodecyl Sulfate, page 286

Sequencing GelsSee DNA Sequencing Gel Mix, page 222See RapidGel Solutions, page 281

D-SerineHOCH

2CH(NH

2)COOH


21490 5gm 25gm

DL-SerineCH

2OHCHNH

2COOH

Formula Weight: 105.09PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRLoss on Drying: ≤ 0.3%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 10 ppmChloride (Cl): ≤ 0.021%Sulfate (SO

4): ≤ 0.05%

Lead (Pb): ≤ 5 ppmCAS #302-84-1

21485 50gm 100gm 1kg 5kg

DL-Serine (Non-Animal)CH

2OHCHNH

2COOH

Formula Weight: 105.09PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRLoss On Drying: ≤ 0.3%Residue on Ignition: ≤ 0.1%Chloride (Cl): ≤ 0.021%Sulfate (SO

4): ≤ 0.05%

Heavy Metals (Pb): ≤ 20 ppm

21486 50gm 100gm 1kg

L-SerineUSBioAnalyzedHOCH

2CH(NH

2)COOH


D : +14.0° to +15.6° (c=10 in 2N HCl)

Loss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.1%Chloride (Cl): ≤ 0.05%Iron (Fe): ≤ 0.003%Sulfate (SO

4): ≤ 0.03%

Heavy Metals (Pb): ≤ 0.0015%Chromographic Purity: Passes testO.V.I.: Meets the requirementCAS #56-45-1

21505 25gm 100gm 1kg

-SitosterolC

29H

50O

Formula Weight: 414.71PRODUCT SPECIFICATIONSForm: White to pale yellow fine powderIdentity: By IR[α]25

D : -24° to -38° (c=2 in CHCl

3)

Loss on Drying: ≤ 2%Melting Point: 135 - 142°Cβ-Sitosterol-1 Content: ≥ 50%CAS #83-46-5

21600 25gm 100gm 500gm

Sodium Acetate, Anhydrous

ULTRAPUREACS Reagent GradeCH

3COONa

Formula Weight: 82.03PRODUCT SPECIFICATIONSForm: White powderAssay: ≥ 99.0%pH (5%, H

2O, 25°C): 7.0 - 9.2

Insoluble Matter: ≤ 0.01%Loss on Drying: ≤ 1.0%Chloride (Cl): ≤ 0.002%Phosphate (PO

4): ≤ 0.001%

Sulfate (SO4): ≤ 0.003%

Calcium (Ca): ≤ 0.005%Magnesium (Mg): ≤ 0.002%Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.001%Application: •Used in the precipitation of DNACAS #127-09-3

21608 500gm 1kg

Sodium Acetate (NaOAc), 3M Solution, pH 5.5

ULTRAPUREMB GradeForm: 3M solution of sodium acetate (NaOAc) in

high purity dH2O, pH 5.5. Solution is 0.2 µm


pH: 5.5 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test

75897 100ml 500ml

Sodium AspartateSee Aspartic Acid, Sodium Salt, page 195

Biochemicals

Biochemicals

1�1w w w . u s b w e b . c o m

Sodium Azide

ULTRAPURENaN

3

Formula Weight: 65.01PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Loss on Drying: ≤ 0.5%CAS #26628-22-8

21610 100gm 500gm

Sodium BenzoateSee Benzoic Acid, Sodium Salt, page 196

Sodium BicarbonateACS Reagent GradeNaHCO

3

Formula Weight: 84.01PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.7 - 100.3%Insoluble Matter: ≤ 0.015%Chloride (Cl): ≤ 0.003%Phosphate (PO

4): ≤ 0.001%


Ammonium (NH4): ≤ 5 ppm

Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 0.001%Calcium (Ca): ≤ 0.02%Magnesium (Mg): ≤ 0.005%Potassium (K): ≤ 0.005%

21602 500gm 2.5kg

Sodium Bisulfite(Mixture of Sodium Bisulfite and Sodium Metabisulfite)

ACS Reagent GradeNaHSO

3 and Na

2S

2O

5

PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 58.5% (SO

2)

Insoluble Matter: ≤ 0.005%Chloride (Cl): ≤ 0.02%Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.002%

21603 500gm 2.5kg

Sodium BorateSee Boric Acid, Sodium Salt, page 198

Sodium BorohydrideNaBH

4

Formula Weight: 37.83PRODUCT SPECIFICATIONSPurity: ≥ 98%Reducing agent for cytochrome and many other

biochemicals.Contains 0.5% magnesium carbonate to prevent

cakingCAS #16940-66-2

21615 25gm 100gm

Sodium CacodylateSee Cacodylic Acid, Sodium Salt, page 201

Sodium Carbonate, AnhydrousACS Reagent GradeNa

2CO

3

Formula Weight: 105.99PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.5%Insoluble Matter: ≤ 0.01%Loss on Drying (285°C): ≤ 1.0%Chloride (Cl): ≤ 0.001%Nitrogen Compounds (N): ≤ 0.001%Phosphate (PO

4): ≤ 0.001%

Silica (SiO4): ≤ 0.005%


Ammonium Hydroxide Precipitate: ≤ 0.01%Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 5 ppmCalcium (Ca): ≤ 0.03%Magnesium (Mg): ≤ 0.005%Potassium (K): ≤ 0.005%

21616 500gm 2.5kg

Sodium CaseinateSee Casein, Sodium, page 203

Sodium Chloride (NaCl), 5M Solution

ULTRAPUREMB GradeForm: 5M solution of sodium chloride (NaCl) in



Contaminant Testing: Heavy Metals: ≤ 5 ppm DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test Protease: Passes test

75888 100ml 500ml 1L

Sodium Chloride

ULTRAPUREACS Reagent GradeNaClFormula Weight: 58.44PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 99.0%pH (5%, H

2O, 25°C): 5.0 - 9.0

Insoluble Matter: ≤ 0.005%Iodide (I): ≤ 0.002%Bromide (Br): ≤ 0.01%Chlorate & Nitrate (NO

3): ≤ 0.003%

Nitrogen Cmpds. (N): ≤ 0.001%Phosphate (PO

4): ≤ 5 ppm

Sulfate (SO4): ≤ 0.004%

Barium (Ba): Passes testHeavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 2 ppmCalcium (Ca): ≤ 0.002%Magnesium (Mg): ≤ 0.001%Potassium (K): ≤ 0.005%Application: •Used for the precipitation of DNACAS #7647-14-5

21618 500gm 1kg 5kg 10kg

Bioc

hem

ical

sBiochemicals

1�� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Sodium ChlorideUSBioAnalyzedNaClFormula Weight: 58.44PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: 99.0 - 100.5% (dry basis)Appearance of Solution: Clear and colorlessIdentity: Passes testAcidity or Alkalinity: Passes testLoss on Drying: ≤ 0.5%Iodides: Passes testMagnesium and Alkaline-Earth Metals: ≤ 0.01%Arsenic (As): ≤ 1 ppmBarium (Ba): Passes testFerrocyanides: Passes testSulfate (SO

4): ≤ 0.020%

Iron (Fe): ≤ 2 ppmNitrites: Passes testHeavy Metals (Pb): ≤ 5 ppmLimit of Bromides: ≤ 0.010%Limit of Phosphates: ≤ 0.0025%

21629 500gm 2.5kg 10kg

Sodium CholateSee Cholic Acid, Sodium Salt, page 206

Sodium CitrateSee Citric Acid, Trisodium Salt, page 207

Sodium DeoxycholateSee Deoxycholic Acid, Sodium Salt, page 214

Sodium DiatrizoateC

11H

8I3N

2NaO

4

Formula Weight: 635.88For density gradient studies.CAS #737-31-5

21645 50gm 100gm 1kg

Sodium Dodecyl Sulfate (SDS)(Sodium Lauryl Sulfate)

ULTRAPURECH

3(CH

2)11

OSO3Na

Formula Weight: 288.38PRODUCT SPECIFICATIONSForm: White crystalline flakesAssay: ≥ 99% (acidity)Assay: ≥ 98% (GC)A (280 nm, 3%, 1 cm): ≤ 0.1A (230 nm, 3%, 1 cm): ≤ 0.2Loss on Drying: ≤ 1%Insoluble Matter: ≤ 0.003%Chloride (Cl): ≤ 0.01%Phosphate (PO

4): ≤ 1 ppm

Copper (Cu): ≤ 5 ppmIron (Fe): ≤ 1 ppmLead (Pb): ≤ 5 ppmProtocol for 10% SDS Solution: SDS: 100 gm H

2O: 900 ml

Heat to 68° to dissolve. Adjust to pH 7.2 and bring to 1 liter. There is no need to sterilize 10% SDS.

CAS #151-21-3

75819 100gm 1kg

Sodium Dodecyl Sulfate (SDS)(Sodium Lauryl Sulfate)

CH3(CH

2)11

OSO3Na

Formula Weight: 288.38PRODUCT SPECIFICATIONSForm: White crystalline powderIdentity: By IRAssay: ≥ 95% (dry basis)Solubility (20%, H

2O): Clear, faintly yellow solution

CAS #151-21-3

18220 100gm 500gm 1kg 5kg

Sodium Dodecyl Sulfate (SDS), 10% Solution

ULTRAPUREForm: 10% (w/v) solution of sodium dodecyl

sulfate (SDS) in high purity dH2O. Solution is


A (280 nm, 3%, 1 cm): ≤ 0.1A (230 nm, 3%, 1 cm): ≤ 0.2Note: Precipitation of SDS is not unusual. Warm

gently to redissolve.

77504 100ml 500ml 1L

Sodium Dodecyl Sulfate (SDS), 20% Solution

ULTRAPUREForm: 20% (w/v) solution of sodium dodecyl

sulfate (SDS) in high purity dH2O. Solution is


Note: Precipitation of SDS is not unusual. Warm gently to redissolve.

75832 100ml 500ml

Sodium GlutamateSee Glutamic Acid, Monosodium Salt, page 232

Sodium LactateSee DL-Lactic Acid, Sodium Salt, page 246

Sodium-N-Lauryl SarcosineSee N-Lauryl Sarcosine, Sodium Salt, page 246

Sodium Lauryl SulfateSee Sodium Dodecyl Sulfate, page 286

Sodium NitrateACS Reagent GradeNa

2NO

3


2O, 25°C): 5.5 - 8.3

Insoluble Matter: ≤ 0.005%Chloride (Cl): ≤ 0.001%Iodate (IO

3): ≤ 5 ppm

Nitrate (NO2): ≤ 0.001%


Sulfate (SO4): ≤ 0.003%

Calcium (Ca): ≤ 0.005%Magnesium (Mg): ≤ 0.002%Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 3 ppm

21606 500gm 2.5kg

Biochemicals

Biochemicals


Sodium OxamateSee Oxamic Acid, Sodium Salt, page 267

Sodium Phosphate, Dibasic AnhydrousACS Reagent GradeHygroscopicNa

2HPO

4


2O, 25°C): 8.7 - 9.3

Insoluble Matter: ≤ 0.01%Loss on Drying : ≤ 0.2%Chloride (Cl): ≤ 0.002%Sulfate (SO

4): ≤ 0.005%

Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.002%Storage: Store ambient, protect from moisture

(product is hygroscopic).

21660 500gm 2.5kg

Sodium Phosphate, DibasicUSBioAnalyzedNa

2HPO

4

Formula Weight: 141.96PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.0 - 100.5% (dry basis)Identity: Passes testsLoss on Drying (130°C): ≤ 5.0%Insoluble Substances: ≤ 0.4%Chloride: ≤ 0.06%Sulfate: ≤ 0.2%Arsenic: ≤ 16 ppmHeavy Metals (Pb): ≤ 0.002%Solubility (1%): Completely soluble in 15 minutes;

clear and colorless solutionpH (1.0%, 25°C): 8.4 - 9.2Identity: By IRLoss on Drying (105°C): ≤ 5.0%Storage: Store ambient, protect from moisture

(product is hygroscopic).

32125 100gm 500gm 2.5kg

Sodium Phosphate, Dibasic(Disodium Phosphate)

CP GradeNa

2HPO

4

Formula Weight: 141.96PRODUCT SPECIFICATIONSForm: White, hygroscopic, crystalline powderAssay: ≥ 98.0% (dry basis)Arsenic (As): ≤ 3 ppmFluoride (F): ≤ 0.005%Heavy Metals (Pb): ≤ 10 ppmInsoluble Substances: ≤ 0.2%Loss on Drying: ≤ 5%Note: This product is a general laboratory reagent

suitable for most laboratory animal diets where trace element deficiencies are not required. One molar stock solutions of this product may be slightly hazy. Where use of a high quality research buffer is required,USB recommends the use of our ACS reagent grade phosphate buffers.

Storage: Store ambient, protect from moisture (product is hygroscopic).

20226 500gm 1kg 5kg

Sodium Phosphate, Dibasic, Heptahydrate

ULTRAPUREACS Reagent GradeEffloresces in warm dry airNa

2HPO

4•7H

2O

Formula Weight: 268.07PRODUCT SPECIFICATIONSForm: White powderAssay: 98.0 - 102.0%pH (5%, H

2O, 25°C): 8.7 - 9.3

Insoluble Matter: ≤ 0.005%Chloride (Cl): ≤ 0.001%Nitrogen Compounds (N): ≤ 0.001%Sulfate (SO

4): ≤ 0.005%

Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.001%Note: While this product is a high quality,

analytical reagent grade buffer, as a good general laboratory practice we recommend filtering solutions before use.

CAS #7782-85-6

20232 100gm 500gm 1kg

Sodium Phosphate, Monobasic(Monosodium Phosphate)

CP GradeNaH

2PO

4

Formula Weight: 119.98PRODUCT SPECIFICATIONSForm: White, slightly hygroscopic crystalline

powderAssay: 98.0 - 103.0% (NaH

2PO

4, dry basis)

Identity: Passes testsArsenic (As): ≤ 3 ppmFluoride (F): ≤ 0.005%Insoluble Substances: ≤ 0.2%Lead (Pb): ≤ 4 ppmLoss on Drying: ≤ 2.0%Note: This product is a general laboratory reagent


Storage: Ambient, desiccate (product is slightly hygroscopic).

20229 500gm 1kg 5kg

Sodium Phosphate, Monobasic, Anhydrous

USBioAnalyzedNaH

2PO

4

Formula Weight: 119.98PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.0 - 103.0% NaH

2PO

4 (dry basis)

Identity: Passes testpH (5%, H

2O): 4.1 - 4.5

Moisture (KF): ≤ 2.0%Insoluble Substances: ≤ 0.2%Chloride (Cl): ≤ 0.014%Sulfate (SO

4): ≤ 0.15%

Aluminum, Calcium, and Related Elements: Passes test

Arsenic (As): ≤ 8 ppmHeavy Metals (as Pb): ≤ 0.002%O.V.I.: Meets requirementsStorage: Ambient, protect from moisture

32130

Bioc

hem

ical

sBiochemicals

1�� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Sodium Phosphate, Monobasic, Monohydrate

CP GradeNaH

2PO

4•H

2O

Formula Weight: 137.98PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.0 - 103.0% NaH

2PO

4 (dry basis)

Identity: Passes testsLoss on Drying: 10.0 - 15.0%Arsenic (As): ≤ 3 ppmFluoride (F): ≤ 0.005%Heavy Metals (Pb): ≤ 10 ppmInsoluble Substances: ≤ 0.2%

21664 100gm 500gm 2.5kg

Sodium Phosphate, Monobasic, Monohydrate

ULTRAPUREACS Reagent GradeSlightly HygroscopicNaH

2PO

4•H

2O


2O, 25°C): 4.1 - 4.5

Insoluble Matter: ≤ 0.01%Chloride (Cl): ≤ 5 ppmSulfate (SO

4): ≤ 0.003%

Calcium (Ca): ≤ 0.005%Potassium (K): ≤ 0.01%Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.001%CAS #10049-21-5

20233 100gm 500gm 1kg

Sodium Phosphate, TribasicCP GradeNa

3PO

4

Formula Weight: 163.94PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 97.0% Na

3PO

4 (ignited basis)

Identification: Passes testsArsenic (As): ≤ 3 ppmFluoride (F): ≤ 0.005%Heavy Metals (as Pb): ≤ 10 ppmInsoluble Substances: ≤ 0.2%Loss on Ignition: ≤ 2.0%

32100

Sodium PropionateSee Propionic Acid, Sodium Salt, page 278

Sodium Pyrophosphate, DecahydrateACS Reagent GradeNa

4P

2O

7•10H

2O

Formula Weight: 446.06PRODUCT SPECIFICATIONSForm: CrystallineAssay: 99.0 - 103.0% (as is)pH (5%, H

2O, 25°C): 9.5 - 10.5

Insoluble Matter: ≤ 0.01%Chloride (Cl): ≤ 0.002%Sulfate (SO

4): ≤ 0.005%

Nitrogen Compounds (N): ≤ 0.001%Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.001%

21601 500gm 2.5kg

Sodium PyruvateSee Pyruvic Acid, Sodium Salt, page 281

Sodium SeleniteNa

2SeO

3


21665 100gm 500gm

Sodium SuccinateSee Succinic Acid, Disodium Salt, page 291

Sodium Sulfate, AnhydrousACS Reagent GradeNa

2SO

4


2O, 25°C): 5.2 - 9.2

Insoluble Matter: ≤ 0.01%Loss on Ignition: ≤ 0.5%Chloride (Cl): ≤ 0.001%Nitrogen Compounds (N): ≤ 5 ppmPhosphate (PO

4): ≤ 0.001%

Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 0.001%Calcium (Ca): ≤ 0.01%Magnesium (Mg): ≤ 0.005%Potassium (K): ≤ 0.01%Extraction-Concentration Suitability: Passes test

21622 500gm 2.5kg

Sodium Sulfite, AnhydrousACS Reagent GradeNa

2SO

3

Formula Weight: 126.04PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0% Insoluble Matter: ≤ 0.005%Free Acid: Passes testTitratable Free Base: ≤ 0.03 meq/gChloride (Cl): ≤ 0.02%Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.001%

21624 500gm 2.5kg

Sodium TaurocholateSee Taurocholic Acid Sodium Salt, page 294

Sodium ThioglycolateSee Thioglycolic Acid, Sodium Salt, page 297

Sodium Thiosulfate, AnhydrousNa

2S

2O

3

Formula Weight: 158.11PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98% (dry basis)pH (1%, H

2O, 25°C): 6.0 - 8.0

Solubility (1%, H2O): Completely soluble after

15 minutes; clear, colorless solutionInsoluble Matter: ≤ 0.01% Sodium Sulfite (Na

2SO

4): ≤ 0.5%

Sulfide (S): Passes testIron (Fe): ≤ 0.002%Heavy Metals (Pb): ≤ 0.001%Acidity (H

3SO

4): ≤ 0.002%

Alkalinity (NaOH): ≤ 0.01%

21632 100gm 500gm 2.5kg

Biochemicals

Biochemicals


Sodium Thiosulfate, PentahydrateACS Reagent GradeNa

2S

2O

3•5H

2O

Formula Weight: 248.18PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.5 - 101.0% pH (5%, H

2O, 25°C): 6.0 - 8.4

Insoluble Matter: ≤ 0.005%Nitrogen Compounds (N): ≤ 0.002%Sulfate and Sulfite (SO

4): ≤ 0.1%

Sulfide (S): Passes test

21627 500gm 2.5kg

Soluble StarchSee Starch-Soluble, page 290

Sorbic AcidC

6H

8O

2

Formula Weight: 112.13PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 101.0% (dry basis)Identity: By IRMelting Point: 132 - 135°CMoisture (KF): ≤ 0.5%Arsenic (As): ≤ 3 ppmHeavy Metals (Pb): ≤ 10 ppmResidue on Ignition: ≤ 0.2%CAS #110-44-1

21705 200gm 500gm

D-Sorbitol


6H

14O

6

Formula Weight: 182.17PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (dry basis): 91.0 - 100.5%pH (10%, H

2O): 3.5 - 7.0

Identity: By IRIdentity (A, B): Passes testsMicrobial Limits: Passes testMoisture (KF): ≤ 1.5%Residue on Ignition: ≤ 0.1%Reducing Sugars: Passes testLimit of Nickel: Passes testStorage: In tight containers, material is

hygroscopicCAS #50-70-4

21710 500gm 1kg 5kg

Soy Hydrolysate, Animal FreePRODUCT SPECIFICATIONSForm: Tan powderAmino Nitrogen: 2%Total Nitrogen: 7%Loss on Drying: 6%Ash: 15%pH (2%, H

2O): 6.5 – 7.5

Microbial Count: Standard plate count: 5,000 cfu/gm Coliform: 10 cfu/gm

21736 250gm 1kg 5kg

Soy Hydrolysate, Enzymatic(Peptones)

ULTRAPUREPRODUCT SPECIFICATIONSForm: Tan powderProtein (N x 6.25): 55.5 - 59.0%Amino Nitrogen 2.3 - 2.5%Total Nitrogen 8.9 - 9.4%Moisture: 4.0 - 4.9%Ash: 8.0 - 11.0%pH: 6.5 - 7.5Microbial Count: Standard plate count: ≤ 5000/gm Coliform: ≤ 10/gm

21720 1lb 5lb

Soy Hydrolysate, Enzymatic IIPRODUCT SPECIFICATIONSForm: Tan powderAmino Nitrogen: 2.2%Total Nitrogen: 7%Loss on Drying: 6%Ash: 15%pH: 6.5 - 7.5Microbial Count: Standard plate count: 5,000 cfu/gm Coliform: 10 cfu/gm

21718 250gm 1kg 5kg

Soybean Protein(Grade II)

21726 5lb 25lb

Soybean Trypsin Inhibitor(Trypsin Inhibitor)

Source: SoybeanPRODUCT SPECIFICATIONSForm: Tan, lyophilized, salt-free powderActivity: ≥ 7,000 BAEE inhibitor units/mg powderUnit Definition: One unit is that amount which will

inhibit one unit of trypsin activity using N-α-benzoyl-L-arginine ethyl ester (BAEE) as a substrate at 25°C and pH 7.6.


21730 500mg 1gm 5gm

Soybean Trypsin Inhibitor(Trypsin Inhibitor)

Source: SoybeanPRODUCT SPECIFICATIONSForm: Tan, lyophilized, salt-free,

chromatographically purified powderActivity: ≥ 10,000 BAEE inhibitor units/mg

powderUnit Definition: One unit is that amount which

will inhibit one unit of trypsin activity using N-α-benzoyl-L-arginine ethyl ester (BAEE) as a substrate at 25°C and pH 7.6.


21735 100mg 500mg 1gm

Spermidine, Triphosphate[NH

2(CH

2)3NH(CH

2)4NH

2]2•3H

3PO

4•6H

2O


21745 1gm 5gm

Bioc

hem

ical

sBiochemicals

1�6 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Spermidine, Trihydrochloride

ULTRAPUREC

7H

19N

3•3HCl

Formula Weight: 254.63Applications:•Causes a 2-fold increase in full length cDNA with

or without pyrophosphate or Actinomycin D using AMV Reverse Transcriptase

•Used in cosmid cloning•Often included in T4 Polynucleotide Kinase

stocksStorage: -20°CCAS #334-50-9

21760 1gm 5gm

Spermine, Diphosphate SaltNH

2(CH

2)3NH(CH

2)4NH(CH

2)3NH

2•2H

3PO

4


21750 1gm

Spermine, TetrahydrochlorideC

10H

26N

4•4HCl


21755 1gm 5gm

SSC, 20X Solution

ULTRAPUREMB GradeForm: 20X SSC solution consisting of 0.3M

trisodium citrate and 3.0M sodium chloride in high purity dH

2O, pH 7.0. Solution is 0.2 µm

filtered and dispensed into durable, square Nalgene bottles. The 5 L size is supplied in an upright carton with a convenient dispensing spout.

pH (25°C, 20X): 7.0 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes testApplication: •Used in nucleic acid blotting and hybridization

techniques

19629 100ml 500ml 1L 5L

SSPE, 20X Solution

ULTRAPUREMB GradeForm: 20X SSPE solution consisting of 3M NaCl,

200mM sodium phosphate and 20mM EDTA in high purity dH

2O, pH 7.4. Solution is 0.2 µm

filtered and dispensed into durable, square Nalgene bottles. The 5 L size is supplied in an upright carton with a convenient dispensing spout.

pH (25°C, 20X): 7.4 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test

75890 1L 5L

Stains-AllC

30H

27N

2S

2Br

Formula Weight: 559.58PRODUCT SPECIFICATIONSForm: Dark blue-green crystalline powderIdentity: By IRDye content: ≥93%Application:•A versatile stain for proteins (red), DNA (blue),

RNA (bluish-purple) and acid polysaccharidesCAS #7423-31-6

32822 1gm 5gm

Starch, Hydrolyzed

ULTRAPURESource: PotatoPRODUCT SPECIFICATIONSForm: White to off-white powderResidue on Ignition: ≤ 1%Loss on Drying: ≤ 20%Gel Strength: Passes testNote: Typically a 12-14% gel is recommended for

electrophoresis. Gel consistency is lot specific and depends on the percentage of amylose and amylopectin in starch, which varies naturally. Optimum concentration must be determined for each lot by the user.

CAS #9005-25-8

32823 100gm 500gm 1kg

Starch-CornCAS #9005-25-8

21805 25lb 100lb

Starch-SolubleACS Reagent GradeSource: PotatoPRODUCT SPECIFICATIONSForm: White powderSolubility: Passes testpH (2%, H

2O, 25°C): 5.0 - 7.0

Loss on Drying: ≤ 12%Sensitivity: Passes testResidue on Ignition: ≤ 0.4%CAS #9005-84-9

21695 500gm 1kg

StaurosporineC

28H

26N

4O

3

Formula Weight: 466.53Form: Non-selective inhibitor of Protein Kinase C.Storage: 4°, in tight containers.CAS #62996-74-1

25115 100µg

Stearic Acid(Octadecanoic Acid)

CH3(CH

2)16

COOHFormula Weight: 284.48PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay (GLC): ≥ 99%Storage: -20°CCAS #57-11-4

21835 5gm

Stearic AcidCH

3(CH

2)16

COOHFormula Weight: 284.48CAS #57-11-4

21836 500gm

Biochemicals

Biochemicals


Stock SolutionsAmmonium Acetate (NH

4OAc), 5M Solution,

page 190Betaine, 5M Solution, page 197Dithiothreitol (DTT) 0.1M Solution, page 222DNA Solutions Kit, page 222EDTA, 0.5M Solution, page 225Lithium Chloride (LiCl), 7.5M Solution, page 248Magnesium Chloride (MgCl

2), 1M Solution,

page 250Manganese Chloride (MnCl

2), 1M Solution,

page 253Potassium Acetate (KOAc), 3M Solution, pH 5.5,

page 275Potassium Chloride (KCl), 2M Solution, page 276Protein Determination Reagent, page 279RNA Solutions Kit, page 283Sodium Acetate (NaOAc), 3M Solution, pH 5.5,

page 284Sodium Chloride (NaCl), 5M Solution, page 285Sodium Dodecyl Sulfate (SDS), 10% Solution,

page 286Sodium Dodecyl Sulfate (SDS), 20% Solution,

page 286Water, Nuclease-Free, page 308Water, Nuclease-Free, Endotoxin-Tested,

page 308Water, RNase-Free, DEPC Treated, page 309

Stop Solution

ULTRAPUREContents: 95% Formamide 20mM EDTA 0.05% Bromophenol Blue 0.05% Xylene Cyanol FFApplication: •Used to stop and load sequencing reaction

products onto denaturing acrylamide gelsStorage: -20°C

70724 1200µl

StreptavidinSee Avidin-Streptavidin, page 195

Streptavidin-Alkaline Phosphatase Conjugate

Storage: 4°C

11687 250µl 1,500µl

Streptomycin Sulfate

ULTRAPUREUSBioAnalyzed(C

21H

39N

7O

12)2•3H

2SO

4

Formula Weight: 1457.38PRODUCT SPECIFICATIONSForm: White to off-white powderActivity: 650 µg - 850 µg of C

21H

39N

7O

12/mg (as

is)Identity (A, B): Passes testspH (200 mg streptomycin/ml): 4.5 - 7.0Loss on Drying: ≤ 5.0%Mode of Action:Inhibits protein synthesis by binding to the S12

protein of the 30S ribosomal subunit.CAS #3810-74-0

21865 10gm 25gm 100gm 1kg

StreptozotocinC

8H

15N

3O

7

Formula Weight: 265.22PRODUCT SPECIFICATIONSForm: Off-white to pale yellow crystalline powderAssay: 95.0 - 105.0% (dry basis) 92.0 - 105.0% (as is)Loss on Drying: ≤ 3.0%Residue on Ignition: ≤ 0.3%Heavy Metals (Pb): ≤ 20 ppmStorage: 4°C, in tight containersCAS #18883-66-4

21870 100mg 250mg 500mg 1gm

Succinic Acid, Free AcidHOOCCH

2CH

2COOH

Formula Weight: 118.09PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Identity: By IRMoisture (KF): ≤ 1.0%Iron (Fe): ≤ 5 ppmCAS #110-15-6

21900 250gm 500gm 1kg 5kg

Succinic Acid, Disodium Salt, Hexahydrate(Sodium Succinate)

C4H

4Na

2O

4•6H

2O

Formula Weight: 270.14PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 97.0 - 102.0% (as is)Identity: By IRLoss on Drying: ≤ 40.0%CAS #6106-21-4

21910 100gm 500gm

Sucrose

ULTRAPUREMB GradeC

12H

22O

11

Formula Weight: 342.30PRODUCT SPECIFICATIONSForm: White/clear crystalline powder[α]25

D : +66.3° to +66.8° (c=26 in H

2O)

A (280 nm, 1M, 1 cm): ≤ 0.125A (260 nm, 1M, 1 cm): ≤ 0.150Insoluble Matter: ≤ 0.005%Loss on Drying: ≤ 0.03%Residue on Ignition: ≤ 0.01%Titratable Acid: ≤ 0.0008 meq/gmInvert Sugar: ≤ 0.05%Chloride (Cl): ≤ 0.005%Sulfate and Sulfite (SO

4): ≤ 0.005%

Arsenic (As): ≤ 1 ppmBarium (Ba): ≤ 1 ppmCadmium (Cd): ≤ 1 ppmCalcium (Ca): ≤ 5 ppmCopper (Cu): ≤ 1 ppmIron (Fe): ≤ 1 ppmLead (Pb): ≤ 1 ppmMagnesium (Mg): ≤ 1 ppmManganese (Mn): ≤ 1 ppmZinc (Zn): ≤ 1 ppmContaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes testCAS #57-50-1

21938 1kg 5kg

Bioc

hem

ical

sBiochemicals

1�8 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

SucroseACS Reagent GradeC

12H

22O

11

Formula Weight: 342.30PRODUCT SPECIFICATIONSForm: White/clear crystalline powder[α]25

D : +66.3° to +66.8° (c=26, H

2O)

Insoluble Matter: ≤ 0.005%Loss on Drying: ≤ 0.03%Residue on Ignition: ≤ 0.01%Titratable Acid ≤ 0.0008 meq/gmChloride (Cl): ≤ 0.005%Sulfate and Sulfite (SO

4): ≤ 0.005%

Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 5 ppmInvert Sugar: ≤ 0.05%

21931 500gm 2.5kg

Sucrose, CrystallineC

12H

22O

11

Formula Weight: 342.30PRODUCT SPECIFICATIONSForm: White/clear crystalsIdentity: By IR[α]20

D : +65.9° to +67.1° (c=26 in H

2O)

Solubility (26%, H2O): Clear and colorless

CAS #57-50-1

21930 1kg 5lb 25lb 100lb

Sucrose OctaacetateUSBioAnalyzedC

28H

38O

19

Formula Weight: 678.59PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: 98.0 - 100.5% (dry basis)Melting Point: ≥ 78°CAcidity: Passes testMoisture: ≤ 1.0%Residue on Ignition: ≤ 0.1%CAS #126-14-7

21935 100gm 1kg

Sudan Black BC

29H

24N

6

Formula Weight: 456.54Application•For lipoprotein staining in electrophoresisCAS #4197-25-5

32824 25gm

Sulfadiazine(2-Sulfanilamidopyrimidine)

USBioAnalyzedC

10H

10N

4O

2S

Formula Weight: 250.28PRODUCT SPECIFICATIONSForm: White to slightly yellow crystalline powderAssay: 98.0 - 102.0% (dry basis)Clarity and Color of Solution: Passes testIdentity (A, B, C): Passes testsAcidity: Passes testLoss on Drying: ≤ 0.5%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 0.002%Selenium (Se): ≤ 0.003%Ordinary Impurities: Passes testCAS #68-35-9

21950 100gm 500gm

Sulfamerazine(2-Sulfanilamido-4-Methyl-Pyrimidine)

C11

H12

N4O

2S

Formula Weight: 264.30PRODUCT SPECIFICATIONSForm: White to faint yellow crystalline powderAssay: 99.0 - 100.5% (dry basis)Identity: By IRMelting Point: 234 - 239°CLoss on Drying: ≤ 0.5%CAS #127-79-7

21960 100gm 1kg

Sulfanilamide(p-Aminobenzene Sulphonamide)

NH2C

6H

4SO

2NH

2


21980 100gm 200gm 1kg

Sulfanilic AcidNH

2C

6H

4SO

3H

Formula Weight: 173.19PRODUCT SPECIFICATIONSForm: White to pale cream colored powderAssay: 98.0 - 102.0% (as is)Identity: By IRCAS #121-57-3

21985 100gm 500gm

Sulfathiazole, Free AcidC

9H

9N

3O

2S

2


21995 100gm 500gm 1kg

Sulfisoxazole(N'-[3,4-Dimethyl-5-Isoxazolyl] Sulfonamide)

C11

H13

N3O

3S

Formula Weight: 267.30PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: 99.0 - 101.0% (dry basis)Identity: By IRLoss on Drying: ≤ 0.5%Melting Point: 194 - 199°CCAS #127-69-5

22010 25gm 100gm

Sulfobetaine 8 (SB3-8)(Zwittergent® 3-8; n-Octyl-N,N-Dimethyl-3-Ammonio-1-Propane Sulfonate)

C13

H29

NO3S

Formula Weight: 279.44PRODUCT SPECIFICATIONSForm: White powderAssay (from C): ≥ 98%Identity: By IRSolubility (10%, H


Conductivity (0.1M, H2O): ≤ 50 µmhos/cm

Moisture (KF): ≤ 2.0%Residue on Ignition: ≤ 0.1%

26210 5gm 25gm 100gm

Sulfobetaine 10 (SB3-10)(Zwittergent® 3-10; n-Decyl-N,N-Dimethyl-3-Ammonio-1-Propane-Sulfonate)

C15

H33

NO3S





26211 5gm 25gm 100gm

Biochemicals

Biochemicals


Sulfobetaine 12 (SB3-12)(Zwittergent® 3-12; n-Dodecyl-N,N-Dimethyl-3-Ammonio-1-Propane-Sulfonate)

C17

H37

NO3S





26212 5gm 25gm 100gm

Sulfobetaine 14 (SB3-14)(Zwittergent® 3-14; n-Tetradecyl-N,N-Dimethyl-3-Ammonio-1-Propane-Sulfonate)

C19

H41

NO3S





26213 5gm 25gm 100gm

Sulfobetaine 16 (SB3-16)(Zwittergent® 3-16; n-Hexadecyl-N,N-Dimethyl-3-Ammonio-1-Propane-Sulfonate)

C21

H45

NO3S

Formula Weight: 391.65PRODUCT SPECIFICATIONSForm: White powderAssay (from C): ≥ 98%Identity: By IRSolubility (0.05M, H




26214 5gm 25gm 100gm

Sulfobetaine 18 (SB3-18)(Zwittergent® 3-18; n-Octadecyl-N,N-Dimethyl-3-Ammonio-1-Propane-Sulfonate)

C23

H49

NO3S

Formula Weight: 419.71PRODUCT SPECIFICATIONSForm: White powderAssay (from C): ≥ 98%Identity: By IRConductivity (0.05M, H

2O): ≤ 50 µmhos/cm


26215 5gm 25gm 100gm

TAE Buffer, 10X Solution

ULTRAPUREMB GradeForm: 10X TAE solution consisting of 400mM

Tris and 0.01M EDTA in high purity dH2O

adjusted to pH 8.3. Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles. The 5 L size is supplied in an upright carton with a convenient dispensing spout. Dilute to 1X with high purity dH

2O for a solution

consisting of 40mM Tris Acetate, pH 8.3 and 1.0mM EDTA.

pH (25°C, 10X): 8.3 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test

75904 1L 5L

TAE Buffer, 50X Solution

ULTRAPUREForm: 50X TAE solution consisting of 2.0M Tris

and 0.05M EDTA in high purity dH2O and

adjusted to pH 8.3. Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles. Dilute to 1X with high purity dH

2O for

a solution consisting of 40mM Tris Acetate, pH 8.3 and 1.0mM EDTA.

pH (25°C, 50X): 8.3 ± 0.1

74015 100ml

Tannic Acid(Tannin)

C76

H52

O46


22040 200gm 500gm 1kg

TAPS(Tris [Hydroxymethyl] Methyl Aminopropane Sulfonic Acid)

C7H

17NO

6S

Formula Weight: 243.28PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 8.40 ± 0.15A (250 nm, 1M, 1 cm): ≤ 0.3Loss on Drying: ≤ 2.0%Iron (Fe): ≤ 30 ppmLead (Pb): ≤ 10 ppmCAS #29915-38-6

22043 25gm 100gm 250gm

D-(–)-Tartaric AcidHOOCH(OH)CH(OH)COOHFormula Weight: 150.09CAS #147-71-7

22055 5gm

L-(+)-Tartaric AcidACS Reagent GradeHOOCH(OH)CH(OH)COOHFormula Weight: 150.09PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: ≥ 99.0%Insoluble Matter: ≤ 0.005%Residue on Ignition: ≤ 0.02%Chloride (Cl): ≤ 0.001%Oxalate (C

2O

4): Passes test

Phosphate (PO4): ≤ 0.001%


Heavy Metals (Pb): ≤ 5 ppmIron (Fe): ≤ 5 ppm

22056 500gm 2.5kg

Bioc

hem

ical

sBiochemicals

130 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Taurine(2-Amino Ethane Sulfonic Acid)

C2H

7NO

3S

Formula Weight: 125.15PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5%Solubility (2.5%, H

2O): Practically clear and

colorlesspH (5%, H

2O): 4.0 - 7.0

Residue on Ignition: ≤ 0.1%Heavy Metals: ≤ 10 ppmAmmonia (NH

3): ≤ 0.02%

Arsenic (As): ≤ 2 ppmChloride (Cl): ≤ 0.01%Sulfate (SO

4): ≤ 0.01%

CAS #107-35-7

22070 100gm 1kg 5kg

Taurine(2-Amino Ethane Sulfonic Acid)

ULTRAPUREMB GradeC

2H

7NO

3S

Formula Weight: 125.15PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5%Identity: By IRSolubility (0.5M, H


pH (5%, H2O): 4.0 - 7.0

A (260 nm, 0.5M, 1 cm): ≤ 0.2A (280 nm, 0.5M, 1 cm): ≤ 0.2Residue on Ignition: ≤ 0.1%Heavy Metals: ≤ 10 ppmAmmonia (NH

3): ≤ 0.02%


4): ≤ 0.01%

Use Test: Functionally tested for electrophoresisCAS #107-35-7

75824 50gm 100gm 1kg 5kg

Taurocholic Acid, Sodium Salt(Sodium Taurocholate)

C26

H44

NNaO7S

Formula Weight: 537.68Contains small amounts of Cholic, Glycocholic

and Deoxycholic Acid.CAS #145-42-6

21670 25gm 100gm 500gm

TaxolC

47H

51NO

14

Formula Weight: 853.91Source: Yew BushesPRODUCT SPECIFICATIONSForm: White powderAssay (HPLC): ≥ 97%Storage: -20°C

10119 5mg 10mg

TBE Buffer, 5X Solution

ULTRAPUREMB GradeForm: 5X TBE (Tris-Borate-EDTA) solution

consisting of 0.445M Tris, 0.445M boric acid and 0.01M EDTA. Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles. The 5 L size is supplied in an upright carton with a convenient dispensing spout. Dilute to 1X with high purity water for a solution consisting of 0.089M Tris, 0.089M boric acid and 0.002M EDTA.

Testing: Meets or exceeds functional test criteria for high quality gel electrophoresis.

Application: •Primarily used as a buffer in gel electrophoresis

procedures

75891 1L 5L

TBE Buffer, 10X Ready-Mixed Powder

ULTRAPUREMB GradeForm: Pre-weighed, pre-mixed powdered buffer

packaged in 200 ml bottles for reconstitution to a 10X solution. Reconstitute with high purity dH

2O to 200 ml. After reconstitution, the 10X

solution consists of 0.89M Tris, 0.89M boric acid and 0.02M EDTA. Each pack contains 6 x 200 ml bottles. Total volume is 1.2 liters of 10X buffer or 12 liters of 1X buffer.

Testing: Meets or exceeds functional test criteria for high quality gel electrophoresis.

Application: •Primarily used as a buffer in gel electrophoresis

proceduresStorage: Ambient. The reconstituted buffer

is stable for several days at 4°C if 0.2 µm filtered.

70454 6x200ml

TBS, 20X Solution, pH 7.4

ULTRAPUREMB GradeForm: 20X TBS (Tris Buffered Saline) solution

consisting of 500mM Tris, 60mM KCl and 2.8M NaCl in high purity dH

2O, pH 7.4. Solution is

0.2 µm filtered and dispensed into durable, square Nalgene bottles. The 5 L size is supplied in an upright carton with a convenient dispensing spout. Dilute to 1X with high purity water for a solution consisting of 25mM Tris, pH 7.4, 3.0mM KCl and 140mM NaCl.

pH (25°C, 20X): 7.4 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test Protease: Passes testApplication: •Used in Western blotting protocols

75892 100ml 1L 5L

Biochemicals

Biochemicals


TBS with Tween (TBST), 20X Solution, pH 7.4

ULTRAPUREMB GradeForm: 20X TBS (Tris Buffered Saline) solution

consisting of 500mM Tris, 60mM KCl, 2.8M NaCl and 1.0% Tween 20 in high purity dH

2O

adjusted to pH 7.4. Solution is 0.2 µm filtered and is supplied in an upright carton with a convenient dispensing spout. Dilute to 1X with high purity water for a solution consisting of 25mM Tris, pH 7.4, 3.0mM KCl, 140mM NaCl and 0.05% Tween 20.

pH (25°C, 20X): 7.4 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test Protease: Passes testApplication: •Used in Western blotting protocols

77500 1L 5L

TCEP-HCI, 0.5M Solution, pH 6.6 ± 0.1(Tris [Carboxyethyl] Phosphine Hydrochloride)

Form: TCEP-HCI solution consisting of 0.5M TCEP-HCI (Tris(2-Carboxyethyl)Phosphine Hydrochloride) in high purity dH

2O.

pH (25°C): 6.6 ± 0.1Concentration (TCEP): 0.5 - 0.55M

77531 5ml 50ml

TE Buffer, 1X Solution

ULTRAPUREMB GradeForm: 1X TE solution consisting of 10mM Tris, pH

7.5, and 1mM EDTA. Solution is 0.2 µm filtered and dispensed into vials and/or durable, square Nalgene bottles.

pH (25°C): 7.5 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test Protease: Passes testApplication: •Use directly to resuspend and/or dilute purified

DNA or RNA

75893 10x1ml 100ml 500ml

TE Buffer, 50X Solution

ULTRAPUREMB GradeForm: 50X TE solution consisting of 500mM Tris,

50mM EDTA in high purity dH2O, adjusted

to pH 7.5. Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles. Dilute to 1X with high purity dH

2O for a

solution consisting of 10mM Tris, pH 7.5, and 1mM EDTA.

pH (25°C, 50X): 7.5 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test Protease: Passes test

75834 100ml 500ml

TEMEDSee Tetramethylethylenediamine, page 296

Terrific Broth, Ready-Made PowderForm: Off-white free flowing powder.pH (5.08%, H

2O): 7.2 ± 0.2

Contents: Casein Peptone: 12 gm/L Yeast Extract: 24 gm/L Potassium Phosphate Dibasic: 12.5 gm/L Potassium Phosphate Monobasic: 2.3 gm/LApplication: •Provides greater yields of plasmid DNA and

recombinant proteins than LB media by allowing for greater cell density

To use: Add 50.8 gm powder, 4 ml glycerol and 996 ml water to make 1 liter medium. Dissolve and autoclave.

75856 250gm 1kg

TES(N-Tris[Hydroxymethyl]methyl-2-Aminoethanesulfonic Acid)

ULTRAPUREC

6H

15NO

6S

Formula Wt.: 229.25PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity A: KBr pellet matches referenceIdentity B: Passes testpKa (20°C): 7.50 ± 0.15A (250 nm, 1M, 1 cm): ≤ 0.2Loss on Drying: ≤ 1.0%Iron (Fe): ≤ 30 ppmLead (Pb): ≤ 10 ppmCAS #7365-44-8

22086 25gm 50gm 100gm 500gm 1kg

Tetracycline, Hydrochloride


22H

24N

2O

8•HCl

Formula Weight: 480.90PRODUCT SPECIFICATIONSForm: Yellow crystalline powderActivity: ≥ 900 µg of C

22H

24N

2O

8•HCI/mg (as is)

Identity (A, B, C, D, E, F): Passes testspH (10 mg/ml): 1.8 - 2.8[α]25

D : -240° to -255° (c=0.5, 0.1N HCI, dry

basis)Loss on Drying (60°C, 3 hr, vacuum): ≤ 2.0%Limit of 4-Epianhydrotetracycline: ≤ 2.0%Heavy Metals (Pb): ≤ 0.005%Storage: Ambient in tight, light resistant


22105 25gm 100gm 1kg

n-Tetradecyl-N,N-Dimethyl-3-Ammonio-1-Propane-Sulfonate


Bioc

hem

ical

sBiochemicals

13� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

3,3',5,5'-Tetraiodo-L-ThyronineSee L-Thyroxine, page 299

Tetramethylammonium Chloride(TMAC)

ULTRAPUREC

4H

12ClN

Formula Weight: 109.60PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98% (dry basis)Identity: By IRpH (10%, H

2O): ≥ 4.5

Loss on Drying: ≤ 1.5%Solubility (10%, H


Applications:•Used in hybridization solutions of mixed

oligonucleotides. In solutions with TMAC, the T

m (melting temperature) of a hybrid

is dependent on its length, not its base composition

•Used in probing PCR products for the analysis of polymorphisms with allele-specific oligonucleotides

Storage: Store at room temperature. This material is extremely hygroscopic.

CAS #75-57-0

22124 500gm 1kg

3,3',5,5'-Tetramethylbenzidine(TMB)

C16

H20

N2

Formula Weight: 240.35PRODUCT SPECIFICATIONSForm: Off-white powderIdentity: By IRMelting Point: 168.3 - 169.9°C

22126 1gm 5gm

3,3',5,5'- Tetramethylbenzidine (TMB) Substrate Solution

ULTRAPUREStorage: 4°C

22128 250ml 1L

N,N,N',N'-Tetramethylethylenediamine(TEMED)

ULTRAPURE(CH

3)2NCH

2CH

2N(CH

3)2

Formula Weight: 116.20PRODUCT SPECIFICATIONSForm: Colorless to pale yellow liquidAssay: ≥ 98%A (290 nm, 1%, 1 cm): ≤ 0.1Density (20°C): 0.77 ± 0.01Refractive Index (20°C): 1.419 ± 0.001Application: •Catalyzes the formation of free radicals by

ammonium persulfate and accelerates the polymerization of acrylamide and bisacrylamide

CAS #110-18-9

76320 100ml 100gm 500gm

Tetranitroblue Tetrazolium Chloride(2,2',5,5'-Tetra-p-Nitropheny1-3,3'- [3,3'-Dimethoxy-4, 4'-Diphenylene]-Ditetrazolium Chloride) ( TNBT )

Completely soluble.C

40H

28N

12O

10Cl

2

Formula Weight: 907.63PRODUCT SPECIFICATIONSForm: Gold powderIdentity: By IRChromatography (TLC): HomogeneousCAS #42798-91-1

22130 250mg 500mg 1gm

Tetrazolium Blue[3,3'- (3,3'-Dimethoxy-4,4'-Biphenylene)-bis- (2,5-Diphenyl)-2H-Tetrazolium Chloride] (BT )

C40

H32

Cl2N

8O

2


22140 1gm 5gm 10gm 25gm

Tetrazolium RedSee 2,3,5-Triphenyl Tetrazolium Chloride,

page 300

TheophyllineC

7H

8N

4O

2


22165 100gm 1kg

Thiamine, Hydrochloride(Vitamin B

1 ; Aneurine)

USBioAnalyzedC

12H

17CIN

4OS•HCl

Formula Weight: 337.27PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.0 - 102.0% (dry basis)Identity (A, B): Passes testsChromatographic Purity: Passes testpH (1%, H

2O): 2.7 - 3.4

Spectral Ratios (400 nm, 10%, 1 cm): ≤ 0.025Moisture (KF): ≤ 5.0%Residue on Ignition: ≤ 0.2%Nitrate: Passes testO.V.I.: Meets the requirementsCAS #67-03-8

22170 25gm 100gm 500gm 1kg

Thiamine, MononitrateC

12H

17N

5O

4S

Formula Weight: 327.36PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.0 - 102.0% (dry basis)Identity: Passes testpH (2%, H

2O): 6.0 - 7.5

Solubility (2%, H2O): Clear and complete

Residue On Ignition: ≤ 0.2%CAS #532-43-4

22175 100gm 1kg

Thiamine Pyrophosphate ChlorideSee Cocarboxylase, page 208

Biochemicals

Biochemicals


Thiazolyl BlueSee MTT, page 259

ThimerosalUSBioAnalyzedC

9H

9HgNaO

2S

Formula Weight: 404.81PRODUCT SPECIFICATIONSForm: White powderAssay: 97.0 - 101.0% (dry basis)Identity (A, B): Passes testsLoss on Drying: ≤ 0.5%Ether-Soluble Substances: Passes testMercury Ions: ≤ 7%Readily Carbonizable Substances: Passes testCAS #54-64-8

22215 25gm 100gm

Thio-NAD(Thio-Nicotinamide-Adenine-Dinucleotide, Oxidized)

C21

H27

N7O

13SP

2•3H

2O

Formula Weight: 733.5 (trihydrate) 679.5 (anhydrous)Storage: -20°CCAS #4090-29-3

22250 100mg

Thio-NADH(Thio-Nicotinamide-Adenine-Dinucleotide, Reduced)

C21

H27

N7O

13SP

2•Na

2•3H

2O

Formula Weight: 779.52 (trihydrate) 681.51 (anhydrous free acid)PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: ≥ 90% (enzymatic with ADH, pH 7.5)Spectral Ratios: A

250/A

260: 0.86 ± 0.05 (pH 10)

A280

/A260

: 0.39 ± 0.03 (pH 10)Moisture (KF): ≤ 10%Sodium (Na): 6.0 ± 3.0%Storage: -20°C, desiccated

22252 100mg

Thio-NADP(Thio-Nicotinamide-Adenine-Dinucleotide Phosphate, Oxidized)

C21

H27

N7O

16SP

3•K•4H

2O

Formula Weight: 869.62 (tetrahydrate) 797.56 (anhydrous)PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: ≥ 93% (enzymatic, pH 7.5)Spectral Ratios: A

250/A

260: 0.89 ± 0.03 (oxidized, pH 7.5)

A280

/A260

: 0.35 ± 0.02 (oxidized, pH 7.5)Moisture (KF): ≤ 8%Potassium: 4.0 ± 2.0%Storage: -20°C, protect from moisture

22253 100mg

ThioacetamideCH

3CSNH

2


22220 25gm 50gm 100gm

Thioglycolic Acid, Sodium Salt(Sodium Thioglycolate; Mercaptoacetic Acid)

HSCH2COONa

Formula Weight: 114.10PRODUCT SPECIFICATIONSForm: White to off-white amorphous powderAssay: ≥ 95.0%Identity: By IRStorage: -20°CCAS #367-51-1

22240 25gm 100gm 500gm

Thioredoxin, Human, Recombinant(r-hTRX)

Formula Weight: 11,734 determined by amino acid sequence

PRODUCT SPECIFICATIONSForm: Lyophilized powder from phosphate bufferSpecific Activity: ≥ 3 units/mg proteinUnit Definition: TRX activity is assayed by

measuring the change in absorbance at 650 nm at 25°C using 0.13µM bovine insulin containing 0.33mM DTT (pH 6.5).


26004 100µg

Thioredoxin, Yeast, Recombinant(r-yTRX)

Formula Weight: 12,600 determined by amino acid sequence

PRODUCT SPECIFICATIONSForm: Lyophilized powder from phosphate bufferSpecific Activity: ≥ 3 units/mg proteinUnit Definition: TRX activity is assayed by

measuring the change in absorbance at 650 nm at 25°C using 0.13µM bovine insulin containing 0.33mM DTT (pH 6.5).


26006 1mg

Thiourea(Thiocarbamide)

NH2CSNH

2

Formula Weight: 76.12PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderIdentity: By IRMelting Point: 171 - 184°CLoss on Drying: ≤ 0.5%CAS #62-56-6

22270 500gm 1kg

D-ThreonineCH

3CH(OH)CH(NH

2)COOH


22280 5gm 25gm 100gm

DL-Threonine(DL-α-Amino-β-Hydroxybutyric Acid)

CH3CH(OH)CH(NH

2)COOH

Formula Weight: 119.12PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0%Identity: By IRLoss on Drying: ≤ 0.3%Residue on Ignition: ≤ 0.1%Ammonium (NH

4): ≤ 0.02%


4): ≤ 0.028%

CAS #80-68-2

22285 25gm 100gm 1kg

Bioc

hem

ical

sBiochemicals

13� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

L-ThreonineCH

3CH(OH)CH(NH

2)COOH

Formula Weight: 119.12PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.5%Identity: By IRpH (5%, H

2O): 5.0 - 6.5

[α]25D : -26.7° to -29.1° (c=6 in H

2O)

Loss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.4%Heavy Metals (Pb): ≤ 15 ppmChloride (Cl): ≤ 0.05%Iron (Fe): ≤ 30 ppmSulfate (SO

4): ≤ 0.03%

O.V.I.: Meets requirementsCAS #72-19-5

22290 10gm 25gm 100gm 1kg

Thrombin HumanSource: Human1,000 NIH units/vialPRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: ≥ 1,000 NIH units/vialSpecific Activity: ≥ 2,000 NIH units/mg proteinReconstitution: Reconstitute with 1.0 ml ddH

2O

Buffer: After reconstitution the solution contains: 5mM Sodium Citrate 0.01% PEG 0.02M NaCl pH 6.5All source material tested and found non-reactive

to HTLV-III and HBsAg using FDA approved assay methods.

Storage: -20°C

22292 1000units

Thrombin(E.C.3.4.21.5)Source: Bovine BloodPRODUCT SPECIFICATIONSForm: Lyophilized powderActivity:≥ 40 units/mg powderMoisture: ≤ 5.0%Note: The activity is determined by comparison

to the activity of Standard Thrombin from the Bureau of Biological Standards.

Storage: 4°C, in tight containersCAS #9002-04-4

22293 25,000units 100,000units

Thymidine(Thymidine-2-Deoxyriboside; 2'-Deoxythymidine)

C10

H14

N2O

5

Formula Weight: 242.23PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (UV): 99.0% ± 3Identity: By IRλ

max (pH 7.0): 267 nm ± 1

εmax

(pH 7.0): [9.65 ± 0.3] x 103


250/A

260: 0.65 ± 0.03

A280

/A260

: 0.72 ± 0.03Loss on Drying: ≤ 1.0%Residue on Ignition: ≤ 1.0%Reference Constants:λ


εmax

(pH 7, NRC ): 9.65 x 103

ε260

(pH 7, DBR ): 8.8 x 103

CAS #50-89-5

22305 1gm 5gm 10gm 25gm 100gm

Thymidine-5'-Diphosphate, Sodium Salt

See 2'-Deoxythymidine-5'-Diphosphate, Sodium Salt, page 217

Thymidine-5'-Monophosphate, Disodium Salt

See 2'-Deoxythymidine-5'-Monophosphate, Disodium Salt, page 217

Thymidine-5'-Triphosphate, Trisodium Salt

See 2'-Deoxythymidine-5'-Triphosphate, Trisodium Salt, page 217

Thymidylic AcidSee 2'-Deoxythymidine-5'-Monophosphate,

Disodium Salt, page 217

Thymine(5-Methyluridine)

C5H

6N

2O

2

Formula Weight: 126.11PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (Total UV): 98.0% ± 3Chromatography (TLC): HomogeneousIdentity: By IRλ

max (pH 7.0): 264 nm ± 1

εmax

(pH 7.0): [7.9 ± 0.3] x 103


250/A

260: 0.67 ± 0.03

A280

/A260


max (pH 7, NRC ): 264.5 nm

εmax

(pH 7, NRC ): 7.9 x 103

ε260

(pH 7, DBR ): 7.4 x 103

CAS #65-71-4

22330 10gm 25gm 100gm 1kg

Thymol Blue, Sodium SaltPRODUCT SPECIFICATIONSForm: Dark orange to rust colored powderSolubility (100 mg/100 ml): Clear solutionVisual Transition Interval: Acid Range: pH 2.2 - Pink pH 2.8 - Orange Alkaline Range: pH 8.0 - Yellow pH 8.4 - Green pH 9.2 - BlueCAS #62625-21-2

22340 5gm 10gm

ThymolphthaleinC

28H

30O

4

Formula Weight: 430.54pH range: 8.8 (colorless) - 10.5 (blue)CAS #125-20-2

22350 25gm 100gm

ThyronineSee Triiodo-L-Thyronine, page 300

Biochemicals

Biochemicals


DL-Thyroxine, Sodium SaltC

15H

10I4NNaO

4


22390 500mg 1gm 5gm

L-ThyroxineC

15H

11I4NO

4


22394 250mg 1gm

L-Thyroxine, Sodium Salt(3,3',5,5'-Tetraiodo-L-Thyronine)

C15

H10

I4NNaO

4•5H

2O

Formula Weight: 888.88PRODUCT SPECIFICATIONSForm: White to slightly brownish-yellow powderAssay: 97.0 - 101.0% (dry basis)Identity: By IR[α]25

D : -5.0° to -6.0° (c=3 in 1N NaOH:ETOH 1:2)

Loss on Drying: ≤ 11.0%Tri-iodothyronine (HPLC): ≤ 2.0% (dry basis)CAS #6106-07-6

22395 500mg 1gm 5gm

TMACSee Tetramethylammonium Chloride, page 296

TMBSee 3,3',5,5'-Tetramethylbenzidine, page 296

TNBTSee Tetranitroblue Tetrazolium Chloride, page 296

D-α-Tocopherol(Vitamin E)

C29

H50

O2


22410 25gm 100gm

DL- -Tocopherol(Vitamin E)

C29

H50

O2

Formula Weight: 430.71PRODUCT SPECIFICATIONSForm: Yellow to amber, clear viscous oilAssay: 96.0 - 102.0%Identity: Passes testAcidity: Passes testHeavy Metals (Pb): ≤ 0.004%Storage: Ambient, protect from lightCAS #10191-41-0

22415 100gm 1kg

DL-α-Tocopherol Acetate(Vitamin E Acetate)

C31

H52

O3


22425 25gm 100gm 1kg

DL-α-Tocopheryl AcetateC

31H

52O

3

Formula Weight: 472.74PRODUCT SPECIFICATIONSForm: White to off-white free-flowing powder

standardized with cornstarchPotency: 250 IU/gm powderCAS #7695-91-2

22420 25gm 100gm 500gm 1kg

α-Tocopherol QuinoneC

29H

50O

3


22405 1gm

p-Tosylamido-2-Phenylethyl Chloromethyl Ketone(TPCK)

C17

H18

ClNO3S


22486 250mg 1gm

N -p-Tosyl-L-Lysine Chloromethyl Ketone, Hydrochloride(TLCK)

C14

H21

ClN2O

3S•HCl

Formula Weight: 369.31A Papain and Trypsin inhibitorStorage: -20°CCAS #4272-74-6

22480 100mg 500mg 1gm

Toxillic AcidSee Maleic Acid, page 252

Transferrin, HoloIron saturatedSource: Human BloodPRODUCT SPECIFICATIONSForm: Pink lyophilized powderAssay: ≥ 98.0%Protein: ≥ 98.0%Moisture: ≤ 5.0%Iron content: 1.2 - 1.7 µg/mgStorage: 4°C

22508 100mg

Transferrin, APO HumanSource: Human PlasmaPRODUCT SPECIFICATIONSForm: White lyophilized powderpH (1%:): 6.5 - 8.0Protein (Biuret): ≥ 95.0%Assay (electrophoresis): ≥ 98.0%Iron Content: ≤ 0.03 mg/gm proteinIron Binding Capacity: ≥ 1.0 mg/gm proteinPurity: ≥ 98%Storage: 4°CCAS #11096-37-0

22517 100mg 500mg 1gm

Transferrin, Pooled PlasmaSource: Bovine BloodStorage: 4°C

22511 100mg 500mg

Bioc

hem

ical

sBiochemicals

136 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

, -Trehalose, Dihydrate(α-D-Glucopyranosyl-α-D-Glucopyranoside)

C12

H22

O11

•2H2O

Formula Weight: 378.33PRODUCT SPECIFICATIONSForm: White crystalline powderMoisture (KF): 9.3 - 9.7%[α]20

D : +179.0° ± 1.5° (c=7, H

2O)

Arsenic (As): ≤ 0.5 ppmIron (Fe): ≤ 5 ppmHeavy Metals (Cu): ≤ 10 ppmCAS #6138-23-4

22515 10gm 100gm

Tricine[N-Tris (Hydroxymethyl)methylglycine]

ULTRAPURE(CH

2OH)

3CNHCH

2COOH


22561 25gm 100gm 500gm 1kg

TriethanolamineN(CH

2CH

2OH)

3

Formula Weight: 149.19PRODUCT SPECIFICATIONSForm: Clear, viscous liquidAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 7.85 ± 0.15Moisture: ≤ 0.5%Diethanolamine: ≤ 0.9%Ethanolamine: ≤ 0.1%Iron (Fe): ≤ 30 ppmHeavy Metals (Pb): ≤ 10 ppmStorage: Ambient, in tight, light-resistant

containers, under inert gas.CAS #102-71-6

22564 500ml 1L

Triethanolamine, HydrochlorideN(CH

2CH

2OH)

3•HCl

Formula Weight: 185.65PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: ≥ 98.5% (dry basis)Identity: By IRpKa (20°C): 7.85 ± 0.15Melting Point: 178 - 182°CLoss on Drying: ≤ 1%Iron (Fe): ≤ 30 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #637-39-8

22565 100gm 250gm 1kg

1,3,5-TrihydroxybenzeneSee Phloroglucinol, page 272

3,3',5-Triiodo-L-Thyronine, Free Acid(Thyronine)

C15

H12

I3NO

4


22590 100mg 500mg 1gm 5gm 10gm

3,3',5-Triiodo-L-Thyronine, Sodium Salt

C15

H11

NNaO4I3

Formula Weight: 672.96PRODUCT SPECIFICATIONSForm: Tan powderAssay (HPLC): ≥ 95%Identity: By IRMoisture (LOD): ≤ 5%CAS #55-06-1

22591 100mg 500mg 1gm

1,3,7-TrimethylxanthineSee Caffeine, page 201

2,6,8-TrioxypurineSee Uric Acid, page 306

Tripalmitin(Glyceryl Tripalmitate)

C51

H98

O6


22625 50gm 100gm

2,3,5-Triphenyl Tetrazolium Chloride(TTC; Tetrazolium Red)

C19

H15

ClN4

Formula Weight: 334.80PRODUCT SPECIFICATIONSForm: Cream to beige colored powderIdentity: By IRSolubility (1%, H

2O): Clear solution

Moisture: ≤ 5% (By KF)Sensitivity for Reducing Sugars: Passes testCAS #298-96-4

22631 5gm 10gm 25gm 50gm 100gm 500gm 1kg

Triphosphopyridine Nucleotide Dinucleotide

See Nicotinamide Adenine Dinucleotide, page 262See Nicotinamide Adenine Dinucleotide Reduced,

page 262

2,4,6-Tripyridyl-s-Triazine (TPTZ)C

18H

12N

6


22660 1gm 5gm 25gm 100gm

Biochemicals

Biochemicals


Tris(Tris[hydroxymethyl]aminomethane)

ACS Reagent GradeNH

2C(CH

2OH)

3

Formula Weight: 121.14PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.8 - 100.1% (dry basis)A (290 nm, 40%, 1 cm): ≤ 0.2Moisture (KF): ≤ 2%Insoluble Matter: ≤ 0.005%Iron (Fe): ≤ 5 ppmHeavy Metals (Pb): ≤ 5 ppm

22664 500gm 2.5kg

Tris(Tris[hydroxymethyl]aminomethane)

ULTRAPUREMB GradeNH

2C(CH

2OH)

3

Formula Weight: 121.14PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.8 - 100.1% (dry basis)Identity: By IRpKa (20°C): 8.30 ± 0.15A (250 nm, 1M, 1 cm): ≤ 0.1A (290 nm, 40%, 1 cm): ≤ 0.2Solubility (1M, 500 ml): Clear and colorlesspH (5%, H

2O): 10.0 - 11.5

Melting Point: 168 - 172°CLoss on Drying: ≤ 1%Moisture (KF): ≤ 1%Residue on Ignition: ≤ 0.1%Insoluble Matter: ≤ 0.005%Arsenic (As): ≤ 1 ppmBarium (Ba): ≤ 1 ppmCadmium (Cd): ≤ 1 ppmCalcium (Ca): ≤ 1 ppmCopper (Cu): ≤ 1 ppmIron (Fe): ≤ 1 ppmLead (Pb): ≤ 1 ppmMagnesium (Mg): ≤ 1 ppmManganese (Mn): ≤ 1 ppmZinc (Zn): ≤ 1 ppmDNase (endo): Passes testDNase (exo): Passes testRNase: Passes testProtease: Passes testCAS #77-86-1

75825 500gm 1kg 5kg 10kg

Tris[Tris(hydroxymethyl)aminomethane]

High Purity GradeNH

2C(CH

2OH)

3

Formula Weight: 121.14PRODUCT SPECIFICATIONSForm: White/clear crystalline powderAssay: 99.0 - 101.0% (dry basis)Identity: By IRpKa (20°C): 8.30 ± 0.15A (250 nm, 1M, 1 cm): ≤ 0.1A (290 nm, 40%, 1 cm): ≤ 0.2pH (5%, H

2O): 10.0 - 11.5

Melting Point: 168 - 178°CLoss on Drying: ≤ 1%Residue on Ignition: ≤ 0.1%Insoluble Matter: ≤ 0.005%Iron (Fe): ≤ 5 ppmHeavy Metals (Pb): ≤ 5 ppmCAS #77-86-1

22674 250gm 500gm 1kg 5kg

Tris[Tris(hydroxymethyl)aminomethane]

Reagent GradeNH

2C(CH

2OH)

3

Formula Weight: 121.14PRODUCT SPECIFICATIONSForm: White to pale yellow crystalline powderAssay: ≥ 98.0% (dry basis)Identity: By IRpH (5%, H

2O): 10.0 - 11.5

Melting Point: ≥ 160°CLoss on Drying: ≤ 1.5%CAS #77-86-1

22675 250gm 500gm 1kg

Tris, Acetate(Tris (Hydroxymethyl) Amino Methane Acetate)

Reagent GradeNH

2C(CH

2OH)

3CH

3COOH

Formula Weight: 181.19PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0%Identity: By IRA (250 nm, 5%, 1 cm): ≤ 0.3Moisture (KF): ≤ 1.0%CAS #6850-28-8

22671 25gm 100gm 250gm

Tris (Carboxyethyl) Phosphine, Hydrochloride(TCEP)

C9H

15O

6P•HCl


22636 5gm 10gm

Tris-Glycine (TG) Buffer, 10X Solution

ULTRAPUREMB GradeForm: 10X Tris-Glycine (TG) Buffer consisting

of 0.25M Ultrapure Tris, pH 8.3, and 1.92M glycine. Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles. The 5 L size is supplied in an upright carton with a convenient dispensing spout. Dilute to 1X with high purity water and methanol for a solution consisting of 25mM Tris, pH 8.3, 192mM glycine, 20% methanol.

pH (25°C, 10X): 8.3 ± 0.1Contaminant Testing: Protease: Passes test.Application: •For Western blotting and gel electrophoresis

75894 1L 5L

Tris-Glycine-SDS (TGS) Buffer, 10X Solution

ULTRAPUREMB GradeForm: 10X Tris-Glycine-SDS (TGS) Buffer,

consisting of 0.25M Ultrapure Tris, pH 8.6, 1.92M glycine and 1.0% SDS. Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles. The 5 L size is supplied in an upright carton with a convenient dispensing spout. Dilute to 1X with high purity dH

2O for a solution consisting of 25mM Tris,

pH 8.6, 192mM glycine and 0.1% SDS.pH (25°C, 10X): 8.3 ± 0.1Contaminant Testing: Protease: Passes testApplication: •TGS is the most commonly used buffer for SDS-

PAGE (sodium dodecyl sulfate-polyacrylamide gel electrophoresis) of proteins

75895 1L 5L

Bioc

hem

ical

sBiochemicals

138 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Tris, Hydrochloride, GranularMB GradeC

4H

11NO

3•HCl

Formula Weight: 157.60PRODUCT SPECIFICATIONSForm: White granulesAssay: 99 - 101.0% (as is)Identity: By IRpKa (20°C): 8.30 ± 0.15Spectral Ratios (250 nm, 1 M, 1 cm): ≤ 0.2Spectral Ratios (290 nm, 40%, 1 cm): ≤ 0.2pH (5%, H

2O): 4.7 ± 0.5

Melting Point: 148 - 157°CLoss on Drying: ≤ 1.0%Residue on Ignition: ≤ 0.1%Insoluble Matter: ≤ 0.005%Iron (Fe): ≤ 5 ppmHeavy Metals (Pb): ≤ 5 ppmDNase (endo): Passes testDNase (exo): Passes testRNase: Passes testProtease: Passes test

22665 1kg

Tris, Hydrochloride(Tris[hydroxymethyl]aminomethane Hydrochloride)

ULTRAPUREMB GradeC

4H

11NO

3 HCl

Formula Weight: 157.60PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 101.0% (as is)Identity: By IRpKa (20°C): 8.30 ± 0.15A (250 nm, 1M, 1 cm): ≤ 0.20A (290 nm, 40%, 1 cm): ≤ 0.20pH (5%, H

2O): 4.7 ± 0.5

Melting Point: 148 - 157°CLoss on Drying: ≤ 1.0%Residue on Ignition: ≤ 0.1%Insoluble Matter: ≤ 0.005%Iron (Fe): ≤ 5 ppmHeavy Metals (Pb): ≤ 5 ppmDNase (endo): Passes testDNase (exo): Passes testRNase: Passes testProtease: Passes testCAS #1185-53-1

22676 100gm 250gm 500gm 1kg 5kg

Tris/HCl, 1M Solution, pH 7.0

ULTRAPUREMB GradeForm: 1M solution of Tris in high purity dH

2O,

adjusted to pH 7.0. Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles.

pH (25°C): 7.0 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test Protease: Passes test

22637 100ml 500ml 1L



2O,

adjusted to pH 7.5. Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles.


22639 100ml 500ml 1L


ULTRAPUREMB GradeForm: 1M solution of Tris, Ultrapure in high purity

dH2O, adjusted to pH 8.0. Solution is 0.2 µm


pH (25°C): 8.0 ± 0.1Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test Protease: Passes testStorage: Prior to opening may be stored at

ambient temperature. After opening, store at 4°C.

22638 100ml 500ml 1L

Tris, 2M Solution


2O.

Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles.

Contaminant Testing: DNase (endo): Passes test DNase (exo): Passes test RNase: Passes test Protease: Passes test

22678 100ml 500ml

Tris, 2M Solution, pH 7.5

ULTRAPUREMB GradeForm: 2M solution of Tris, Ultrapure (MW 121.14)

in deionized water adjusted to pH 7.5 with HCl. Solution is 0.2 µm filtered and dispensed into durable, square Nalgene bottles.


77514 100ml 1L

Tris, Phosphate, MonobasicReagent GradeNH

2C(CH

2OH)

3•H

3PO

4

Formula Weight: 219.13PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98%Identity: By IRA (280 nm, 5%, 1 cm): ≤ 0.05Solubility (5%, H


Loss on Drying: ≤ 3.0%Residue on Ignition: ≤ 0.1%Heavy Metals (Pb): ≤ 5 ppmCAS #6992-39-8

22684 25gm 100gm 250gm

Biochemicals

Biochemicals


Tris, Sulfate(NH

2C(CH

2OH)

3)2•H

2SO

4


22688 25gm 100gm 250gm

Triticum Vulgaris Agglutinin(Wheat Germ Agglutinin)

PRODUCT SPECIFICATIONSForm: White to slightly off-white lyophilized

powderAssay: Single band by disc gel electrophoresis;

7.5% poly-acrylamide gel, Tris-glycine buffer pH 8.8, 50 µg sample.

Specificity: N-acetylglucosamine, Sialic acid.Activity: Less than 4 mg/ml will agglutinate

human type 0 erythrocytes. Less than 1 µg/ml will agglutimate neuraminidase treated erythrocytes.

Other Data: Salt and carbohydrate free; Non-mitogenic

Reconstitute with 0.01M Phosphate buffer. Do not inhale lectin or allow skin contactStorage: -20°C, desiccated

23453 5mg 25mg 100mg

Triton® X-100

ULTRAPUREPRODUCT SPECIFICATIONSForm: Clear liquidpH (5%, H

2O): 6.0 - 8.0

Cloud point: 63 - 69°C for 1% aqueous solutionColor, APHA: ≤ 100CAS #9002-93-1

22686 500ml 1ga

r-hTRX, r-yTRXSee Thioredoxin, Recombinant Human, Yeast,

page 297

Trypsin

ULTRAPURE(E.C.3.4.21.4)USBioAnalyzedSource: Bovine PancreasPRODUCT SPECIFICATIONSForm: White to pale yellow powderActivity: ≥ 2,500 USP units/mg powderContaminating Activity: Chymotrypsin: ≤ 50 USP units/mg powderLoss on Drying: ≤ 5.0%Solubility: Passes testResidue on Ignition: ≤ 2.5%Microbial Limits Test per USP: Passes testStorage: -20°C, protect from moisture.CAS #9002-07-7

22720 1gm 5gm 10gm

Trypsin (TPCK Treated)(E.C.3.4.21.4)Source: Bovine PancreasPRODUCT SPECIFICATIONSForm: Lyophilized powder, treated with TPCK to

inhibit chymotryptic activityActivity: ≥ 180 units/mg proteinUnit Definition: One unit hydrolyzes 1 µmol of

TAME/min at 25°C, pH 8.2, in the presence of 0.01M Ca2+.

Storage: 4°C

22725 100mg 250mg

Trypsin 1:100(E.C.3.4.21.4)Source: Porcine PancreasPRODUCT SPECIFICATIONSForm: Powder stabilized with lactoseActivity: Trypsin: ≥ 100,000 USP units/gm Chymotrypsin ≥ 30,000 USP units/gmUnit Definition: One unit causes a change in

absorbance of 0.003/min with BAEE as a substrate at 25°C, pH 7.6.


22705 100gm 500gm 1kg

Trypsin 1:250(E.C.3.4.21.4)Source: Porcine PancreasPRODUCT SPECIFICATIONSForm: Powder stabilized with lactose.Activity: ≥ 250,000 USP units/gmChymotrypsin: ≥ 75,000 USP units/gmUnit Definition: One unit causes a change in


Storage: 4°C

22710 25gm 100gm 1kg

Trypsin 1:300(E.C.3.4.21.4)Source: Porcine PancreasPRODUCT SPECIFICATIONSForm: Powder stabilized with lactoseTrypsin Activity: ≥ 300,000 USP units/gm (as is)Chymotrypsin Activity: ≥ 90,000 USP units/gm

(as is)Loss on Drying: ≤ 5.0%Unit Definition: One unit causes a change in


Storage: 4°C

22715 25gm 100gm 1kg

Trypsin InhibitorsSee Lima Bean Trypsin Inhibitor, page 248See Soybean Trypsin Inhibitor, page 289

TrypsinogenSource: Bovine PancreasPRODUCT SPECIFICATIONSForm: Crystallized, contains minimal tryptic

activityActivity: Activates to 150 to 200 units/mgUnit Definition: One unit hydrolyzes 1 µmol of

TAME/min at 25°C, pH 8.2, in the presence of ionized calcium.

Storage: 4°C

22745 100mg 500mg 1gm

Bioc

hem

ical

sBiochemicals

1�0 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

D-Tryptophan(C

8H

6N)CH

2CH(NH

2)COOH


22755 25gm 100gm

L-Tryptophan(L-2-Amino-3-Indole Propionic Acid)

USBioAnalyzedC

11H

12N

2O

2

Formula Weight: 204.23PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay: 98.5 - 101.5% C

11H

12N

2O

2 (dry basis)

Identity: By IRpH (1%, H

2O): 5.5 - 7.0

Chromatography (TLC): Homogeneous[α]25

D : -29.4° to -32.8° (c=1 in H

2O)


4): ≤ 0.03%

O.V.I.: Meets the requirementsCAS #73-22-3

22765 25gm 100gm 1kg

L-Tryptophan-β-NapthylamideC

21H

19N

3O

Formula Weight: 329.40PRODUCT SPECIFICATIONSForm: Off-white powderChromatography (TLC): HomogeneousIdentity: By IRStorage: 4°C

22791 100mg 500mg 1gm

Tween® 20(Polyoxyethylene Sorbitan Monolaurate)

ULTRAPUREPRODUCT SPECIFICATIONSForm: Yellow liquidIdentity: Passes testSaponification Number: 40 - 50 mg KOH/gHydroxyl Number: 96 - 108 mg KOH/gAcid Number: ≤ 2.2 mg KOH/gWater: ≤ 3.0%Specific Gravity: 1.1 g/ml (approx.) (25°C)Viscosity: 370 cps (approx.) (25°C)Solubility (10%, H

2O): Soluble

CAS #9005-64-5

20605 500ml 1ga

Tween® 40(Polyoxyethylene Sorbitan Monolaurate)

PRODUCT SPECIFICATIONSForm: Yellow liquidIdentity: Passes testsSaponification Number: 41 - 52 mg KOH/gHydroxyl Number: 89 - 105 mg KOH/gAcid Number: ≤ 2.2 mg KOH/gWater: ≤ 3.0%CAS #9005-66-7

20606 1ga

Tween® 80(Polyoxyethylene Sorbitan Monooleate)

USBioAnalyzedPRODUCT SPECIFICATIONSForm: Yellow viscous liquidIdentity (A, B, C): Passes testsSpecific Gravity (25°C): 1.06 - 1.09Viscosity (25°C): 300 - 500 cpsWater: ≤ 3.0%Residue on Ignition: ≤ 0.25%Heavy Metals (Pb): ≤ 0.001%Acid Value: ≤ 2.2Hydroxy Value: 65 - 80Saponification Value: 45 - 55Residual Solvents: Passes testCAS #9005-65-6

20608 500ml 1ga

Tyramine, Hydrochloride(Tyrosamine)

HO(C6H

4)CH

2CH

2NH

2•HCl


22875 2gm 5gm 25gm 100gm

TyrosamineSee Tyramine, page 304

Tyrosinase(Polyphenol Oxidase)

(E.C.1.14.18.1)Source: MushroomStorage: -20°C

22885 100,000units 500,000units

D-TyrosineHO(C

6H

4)CH

2CH(NH

2)COOH


22890 1gm 5gm

DL-TyrosineHO(C

6H

4)CH

2CH(NH

2)COOH


22895 25gm 100gm

Biochemicals

Biochemicals


L-TyrosineUSBioAnalyzedHO(C

6H

4)CH

2CH(NH

2)COOH


D : -9.8° to -11.2° (dry basis, c=5 in 1N HCl)

Loss on Drying (105°C, 3 hr): ≤ 0.3%Residue on Ignition: ≤ 0.4%Chloride (Cl): ≤ 0.04%Iron (Fe): ≤ 30 ppmSulfate (SO

4): ≤ 0.04%

Heavy Metals (Pb): ≤ 15 ppmChromotographic Purity: Passes testO.V.I.: Meets the requirementsCAS #60-18-4

22910 100gm 200gm 1kg 5kg

DL-o-TyrosineC

9H

11NO

3


22905 500mg 1gm

L-Tyrosine, Disodium SaltC

9H

9NO

3Na

2•nH

2O


PRODUCT SPECIFICATIONSForm: Pale beige to light tan powderAssay: ≥ 98.0% (dry basis)Identity: By IRMoisture (KF): ≤ 20%pH (10%, H

2O): 11.5 ± 0.5

Storage: Ambient, in tightly closed containers (material is very hygroscopic)

CAS #122666-87-9

22927 25gm 100gm 1kg 5kg

L-Tyrosine, HydrochlorideHO(C

6H

4)CH

2CH(NH

2)COOH•HCl

Formula Weight: 217.65PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 98.0%Identity: By IRSolubility (4%, 1N HCl): Clear and complete[α]20

D : -9.4° to -10.2° (c=5 in 1N HCl)

Loss on Drying (110°C): ≤ 1.0%Heavy Metals (Pb): ≤ 20 ppmCAS #16870-43-2

22935 1gm 5gm 10gm

UracilC

4H

4N

2O

2

Formula Weight: 112.09PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay (Total UV, pH 7.0): ≥ 98.0% (dry basis)Identity: By IRSpectral Ratios (pH 7.0): A

280/A

260: 0.18 ± 0.02

A250

/A260

: 0.84 ± 0.03Loss on Drying (105°C, 2 hr): ≤ 5.0%Residue on Ignition: ≤ 0.1%Reference Constants:λ


εmax

(pH 7, NRC ): 8.2 x 103

ε260

(pH 7, DBR ): 8.2 x 103

CAS #66-22-8

23020 100gm 1kg

UreaACS Reagent GradeNH

2CONH

2

Formula Weight: 60.06PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 100.5%Melting Point: 132 - 135°CInsoluble Matter: ≤ 0.01%Residue on Ignition: ≤ 0.01%Chloride (Cl): ≤ 5 ppmSulfate (SO

4): ≤ 0.001%

Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.001%

23041 500gm 2.5kg

Urea

ULTRAPUREMB GradeNH

2CONH

2

Formula Weight: 60.06PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.5%Identity: By IRSpectral Ratios (260 nm, 6M, 1 cm): ≤ 0.055Spectral Ratios (280 nm, 6M, 1 cm): ≤ 0.044Melting Point: 132 - 135°CInsoluble Matter ≤ 0.01%Residue on Ignition: ≤ 0.01%Conductivity: ≤ 15 µmhos/cmCyanate: None detectedChloride (Cl): ≤ 0.0005%Sulfate (SO

4): ≤ 0.001%

Copper (Cu): ≤ 0.5 ppmIron (Fe): ≤ 0.5 ppmLead (Pb): ≤ 0.5 ppmDNase (endo): Passes testRNase: Passes testProtease: Passes testApplications:•Chaotropic agent used in denaturing

polyacrylamide gel electrophoresis•When 8M urea is not sufficiently denaturing,

40% formamide may be includedCAS #57-13-6

75826 1kg 5kg

UreaHigh Purity GradeNH

2CONH

2

Formula Weight: 60.06PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 99.0 - 100.5%Loss on Drying: ≤ 1.0%Melting Point: 132 - 135°CInsoluble Matter: ≤ 0.01%Residue on Ignition: ≤ 0.01%Chloride (Cl): ≤ 5 ppmSulfate (SO

4): ≤ 0.001%

Heavy Metals (Pb): ≤ 0.001%Iron (Fe): ≤ 0.001%CAS #57-13-6

23036 500gm 1kg 5kg

Bioc

hem

ical

sBiochemicals

1�� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

r-Urease, Recombinant(3.5.1.5)Source: E.coliPRODUCT SPECIFICATIONSForm: Lyophilized powderActivity: ≥ 150 units/mg proteinProtein (per mg of powder): 500 ± 300 µgPotassium Phosphate (per mg of powder): 470

± 300 µgEDTA Na

2 (per mg of powder): 30 ± 10 µg

Contaminating Activity: NADPH Oxidase: ≤ 0.001%Storage: -20°C, protect from moisture

26117 1,000units

Uric Acid(2,6,8-Trioxypurine)

C5H

4N

4O

3

Formula Weight: 168.11PRODUCT SPECIFICATIONSForm: White to off-white powderAssay: ≥ 98.5%Identity: By IRSolubility: Clear solutionLoss on Drying: ≤ 0.2%Residue on Ignition: ≤ 0.2%Heavy Metals: ≤ 20 ppmCAS #69-93-2

23075 10gm 25gm 100gm 500gm 1kg

Uricase(E.C.1.7.3.3)Source: Yeast, Candida utilisPRODUCT SPECIFICATIONSForm: Lyophilized powderActivity ≥ 6 units/mg proteinUnit Definition: One unit hydrolyzes 1 µmole of

uric acid/min at 25°C, pH 8.5.Buffer: Na

2B

4O

7•10H

2O

Note: The above product is available in manufacturing quantities. Please inquire for bulk pricing.

Storage: -20°CCAS #9002-12-4

23089 10units 50units 100units 500units 1,000units

UridineC

9H

12N

2O

6

Formula Weight: 244.20PRODUCT SPECIFICATIONSForm: White to slightly off-white powderAssay (UV): 100% ± 2%Identity: By IRλ

max (pH 7.0): 262 nm ± 1 nm

εmax

(pH 7.0): [10.1 ± 2%] x 103


250/A

260: 0.74 ± 0.03

A280

/A260

: 0.36 ± 0.02Loss on Drying: ≤ 1.0%Heavy Metals (Pb): ≤ 10 ppmReference Constants:λ


εmax

(pH 7, NRC ): 10.1 x 103

ε260

(pH 7, DBR ): 10.0 x 103

CAS #58-96-8

23130 1gm 5gm 10gm 100gm

Uridine-5'-Diphosphate, Disodium SaltC

9H

12N

2O

12P

2Na

2•nH

2O




εmax

(pH 7, NRC ): 10.0 x 103

ε260

(pH 7, DBR ): 9.9 x 103

Storage: -20°C, protect from moistureCAS #2781-45-0

23135 25mg 100mg 500mg 1gm

Uridine-5'-Diphospho-Glucose, Disodium Salt

C15

H22

N2O

17P

2Na

2•2H

2O

Formula Weight: 610.27 (anhydrous) 646.30 (dihydrate) Storage: 4°CCAS #28053-08-9

23140 500mg 1gm

Uridine-5'-Monophosphate, Disodium Salt(UMP; Uridine Monophosphate)

C9H

11N

2O

9PNa

2•nH

2O


PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: (Total UV): ≥ 96.0% (dry basis)λ

max (pH 7.0): 262 nm ± 2 nm

εmax

(pH 7.0): [10.0 ± 0.3] x 103


250/A

260: 0.73 ± 0.03

A280

/A260



εmax

(pH 7, NRC ): 10.0 x 103

ε260

(pH 7, DBR ): 9.9 x 103


23155 5gm

Uridine-5'-Triphosphate, Sodium Salt, 100mM Solution(UTP)

ULTRAPUREC

9H

11N

2O

15P

3Na

4


77244 25µmol(250µl)

Uridine-5'-Triphosphate, Trisodium Salt(UTP)

C9H

12N

2O

15P

3Na

3•2H

2O

Formula Weight: 586.12PRODUCT SPECIFICATIONSForm: White crystalline powderAssay (Total UV): 100% ± 3% (dry basis)λ

max (pH 7.0): 262 nm ± 1 nm

εmax

(pH 7.0): [10.0 ± 0.3] x 103


250/A

260: 0.75 ± 0.03

A280

/A260

: 0.38 ± 0.02Moisture: ≤ 15.0%Reference Constants:λ


εmax

(pH 7, NRC ): 10.0 x 103

ε260

(pH 7, DBR ): 9.9 x 103

Storage: -20°CCAS #19817-92-6

23160 100mg 500mg 1gm

Biochemicals

Biochemicals


Uridylic AcidSee Uridine Monophosphate, page 306

Urocanic AcidC

6H

6N

2O

2

Formula Weight: 138.12PRODUCT SPECIFICATIONSForm: White powderAssay: 98.0 - 101.0%Chromatography (TLC): HomogeneousLoss on Drying: ≤ 1.0%Residue on Ignition: ≤ 0.2%Chloride (Cl): ≤ 0.10%Arsenic (As

2O

3): ≤ 2 ppm


23170 1gm 5gm

Urokinase(E.C.3.4.99.26)Source: Human UrineStorage: -20°CCAS #9039-53-6

23715 10,000units

UTPSee Uridine-5'-Triphosphate, page 306

DL-Valine(CH

3)2CHCH(NH

2)COOH

Formula Weight: 117.15PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%Chromatography (TLC): Homogeneous[α]20

D : 0° ± 2° (c=8, 6N HCl)

Identity: By IRLoss on Drying: ≤ 0.3%Residue on Ignition: ≤ 0.1%Ammonium (NH

4): ≤ 0.02%


4): ≤ 0.05%

Iron (Fe): ≤ 10 ppmHeavy Metals (Pb): ≤ 10 ppmCAS #516-06-3

23195 100gm 1kg 5kg

L-ValineUSBioAnalyzed(CH

3)2CHCH(NH

2)COOH

Formula Weight: 117.15PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: 98.5 - 101.5% (dry basis)Identity: By IRpH (5%, H

2O): 5.5 - 7.0

[α]25D : +26.6° to +28.8° (c=8 in 6N HCl)

Loss on Drying: ≤ 0.3%Residue on Ignition: ≤ 0.1%Chloride (Cl): ≤ 0.05%Iron (Fe): ≤ 0.003%Sulfate (SO

4): ≤ 0.03%

Heavy Metals (Pb): ≤ 0.0015%Chromatographic Purity: Passes testResidual Solvents: Meets requirementsCAS #72-18-4

23205 10gm 25gm 100gm 500gm 1kg

ValinomycinC

54H

90O

18N

6

Formula Weight: 1111.32PRODUCT SPECIFICATIONSForm: White to off-white powderAssay (HPLC): ≥ 93.0% (as is)Chromatography (TLC): HomogeneousIdentity: By IR[α]20

D : +31° (c=1.6 in benzene)

Note: This is a highly toxic material; use extreme care when handling.


23219 5mg 10mg 25mg

Vancomycin, HydrochlorideUSBioAnalyzedC

66H

75Cl

2N

9O

24•HCl

Formula Weight: 1485.71PRODUCT SPECIFICATIONSForm: Tan to brown powderActivity: ≥ 900 µg of vancomycin/mg (dry basis) ≥ 855 µg of vancomycin/mg (as is)Identity: By IRChromatographic Purity: Vancomycin B: ≥ 80.0% Other Peaks: ≤ 9%pH (50 mg/ml, H

2O): 2.5 - 4.5

Moisture (KF): ≤ 5.0%Storage: 4°C, in tight containers.CAS #1404-93-9

23261 100mg 250mg

VitafreeTM CaseinSee Casein Vitafree, page 203

Vitamin A AcetateC

22H

32O

2

Formula Weight: 328.5PRODUCT SPECIFICATIONSForm: Light yellow, fine granular powder.

Individual particles contain all-trans-Vitamin A Acetate finely dispersed in a starch coated matrix of gelatin, sucrose and corn starch. BHT is added as an antioxidant.

Assay: ≥ 500,000 IU/gmLoss on Drying: ≤ 8.0%Storage: 4°CCAS #127-47-9

23310 25gm 100gm

Vitamin B1

See Thiamine HCl, page 296

Vitamin B2

See Riboflavin, page 283

Bioc

hem

ical

sBiochemicals

1�� P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Vitamin B5

See D, DL Calcium Pantothenate, page 202

Vitamin B6

See Pyridoxine, HCl, page 280

Vitamin B7

See DL-Carnitine HCl, page 203

Vitamin B12

0.1% trituration in gelatinPRODUCT SPECIFICATIONSForm: Tan/slight pink powderComposition: Vitamin B

12: 0.1%

Gelatin: 99.9%

23365 10gm 25gm 100gm

Vitamin B12

(Cyanocobalamin)

USBioAnalyzedC

63H

88CoN

14O

14P

Formula Weight: 1355.37PRODUCT SPECIFICATIONSForm: Dark red crystalline powderAssay: 96.0 - 100.5% C

63H

88CoN

14O

14P

(dry basis)Identity (A, B, C): Passes testsLoss on Drying: ≤ 12.0%Psuedocyanocobalamin: Passes testStorage: In tight, light-resistant containersCAS #68-19-9

23360 250mg 500mg 1gm

Vitamin B12

0.1% trituration in mannitolPRODUCT SPECIFICATIONSForm: Tan/slight pink powderComposition: Vitamin B

12: 0.1%

Mannitol: 99.9%

23370 10gm 25gm 100gm

Vitamin CSee L-Ascorbic Acid, page 193

Vitamin D3

See Cholecalciferol, page 206

Vitamin Free CaseinSee Casein-Vitafree, page 203

Vitamin GSee Riboflavin, page 283

Vitamin HSee D-Biotin, page 197

Vitamin K1

(Phytonadione; 2-methyl-3-Phytyl-3-1; 4-Napthoquinone)

USBioAnalyzedC

31H

46O

2

Formula Weight: 450.70PRODUCT SPECIFICATIONSForm: Clear yellow to amber viscous liquidAssay: 97.0 - 103.0%Identity (A, B): Passes testsRefractive Index (25°C): 1.523 to 1.526Reaction: Neutral to litmusLimit of Menadione: Passes testZ-isomer content: ≤ 21.0%CAS #84-80-0

23445 250mg 1gm 5gm 10gm

Vitamin K3

See Menadione, page 254

Vitamin K5

(2-Methyl-4-Amino-1-Napthol HCl; 2-Methyl-3-Phytyl-3-1, 4-Napthoquinone)

C11

H11

NO•HClFormula Weight: 209.67Storage: -20°CCAS #83-70-5

23446 1gm 5gm

Water, Nuclease-Free

ULTRAPUREMB GradeForm: High purity dH

2O tested for contaminating

nuclease activity. Product is 0.2 µm filtered and dispensed into vials and/or durable, square Nalgene bottles. The 5 L size is supplied in an upright carton with a convenient dispensing spout.

Contaminant Testing: RNase: Passes test DNase (endo): Passes test DNase (exo): Passes test Protease: Passes test Enzyme Inhibition: Passes test PCR Test: Passes test

71786 10x1ml 100ml 500ml 1L 5L

Water, Nuclease-Free, Endotoxin-Tested


2O tested for contaminating

nuclease and endotoxin activity. Product is 0.2 µm filtered and dispensed into durable, square Nalgene bottles.

Contaminant Testing: RNase: Passes test DNase (endo): Passes test DNase (exo): Passes test Endotoxin: ≤ 0.25 EU/ml

71788 100ml 1L

Biochemicals

Biochemicals


Water, RNase-Free, DEPC Treated


2O treated overnight with

0.1% Diethylpyrocarbonate. Product is 0.2 µm filtered and dispensed into vials and/or durable, square Nalgene bottles, then autoclaved.

Contaminant Testing: RNase: Passes test DNase (endo): Passes test DNase (exo): Passes test Protease: Passes test Enzyme Inhibition: Passes test PCR Test: Passes test

70783 25ml 10x1ml 100ml 500ml 1L

WGASee Triticum Vulgaris Agglutinin, page 303

Wheat GermPRODUCT SPECIFICATIONSForm: Tan granular powderProtein: 25 - 30%Fat: ≥ 7%Free Fatty Acids: ≤ 14%Moisture: ≤ 13.5%Fines: ≤ 12% (% through 80 mesh)Storage: Ambient, in tight containers

23451 5lb 25lb 100lb

Wheat Germ AgglutininSee Triticarium Vulgaris Agglutinin, page 303

Wright’s StainPrepared for use in blood stain work.CAS #68988-92-1

23457 5gm 10gm 25gm 100gm

XanthineC

5H

4N

4O

2

Formula Weight: 152.11PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay (Total UV): ≥ 98% (dry basis)Chromatography (TLC): HomogeneousIdentity: By IRλ

max: 284 nm ± 1 nm (1N NaOH)

εmax

:[9.4 ± 0.2] x 103 (1N NaOH)Spectral Ratios (1N NaOH): A

250/A

260: 1.11 ± 0.04

A280

/A260

: 2.39 ± 0.04Loss on Drying: ≤ 1.0%Heavy Metals: ≤ 10 ppmReference Constants:λ


εmax

(pH 10, NRC ): 9.3 x 103

ε260

(pH 10, DBR ): 5.2 x 103

CAS #69-89-6

23460 5gm 10gm 25gm 100gm 1kg

Xanthine Monosodium Salt, Monohydrate

C5H

3N

4O

2Na•H

2O

Formula Weight: 192.11PRODUCT SPECIFICATIONSForm: White to off-white crystalline powderAssay (Total UV): ≥ 96.0% (dry basis)Identity: By IRMoisture (KF): ≤ 12.0%Spectral Ratios (pH 10.0): A

250/A

260: 1.29 ± 0.06

A280

/A260



εmax

(pH 10, NRC ): 9.3 x 103

ε260

(pH 10, DBR ): 5.2 x 103

CAS #1196-43-6

23465 1gm 5gm 10gm 25gm 100gm

Xanthine Oxidase(E.C.1.2.3.2)Source: ButtermilkForm: Ammonium sulfate suspensionStorage: 4°C, do not freeze.


Xanthosine, DihydrateC

10H

12N

4O

6•2H

2O



εmax

(pH 8, NRC ): 8.9 x 103

ε260

(pH 8, DBR ): 7.7 x 103

CAS #5968-90-1

23485 2gm 5gm 10gm

X-α-GALSee 5-Bromo-4-Chloro-3-Indolyl-α-D-

Galactopyranoside, page 199

X-GalSee 5-Bromo-4-Chloro-3-Indolyl-β-D-

Galactopyranoside, page 199

X-GlucSee 5-Bromo-4-Chloro-3-Indolyl-β-D-Glucuronic

Acid, page 200

Bioc

hem

ical

sBiochemicals

1�6 P h o n e : 1 - 8 0 0 - 3 � 1 - 9 3 � � | � 1 6 - 7 6 5 - 5 0 0 0

Xylene Cyanol FF


25H

27N

2NaO

7S

2

Formula Weight: 554.61PRODUCT SPECIFICATIONSForm: Dark burgundy metallic powderIdentity: By IRε

max (615 nm, H

2O, 1 cm): ≥ 60 x 103

Loss on Drying: ≤ 10.0%λ

max (H

2O solution): 615 nm ± 2 nm

Application:•Useful as a tracking dye during the separation of

nucleic acids (in particular, in DNA sequencing electrophoresis)

Sequencing Stop Solution: 95% Formamide 20mM EDTA 0.05% Bromophenol Blue 0.05% Xylene Cyanol FF Store solution at -20°C.10X Agarose Gel Loading Solution: 50% Glycerol 60mM EDTA 0.05% Bromophenol Blue 0.05% Xylene Cyanol 1.0% SDSStorage: Store solution at room temperature.CAS #4463-44-9

23513 25gm

Xylitol(Xylite)

C5H

12O

5

Formula Weight: 152.15PRODUCT SPECIFICATIONSForm: White powderAssay: 98.5 - 101.0% (dry basis)Identity: By IRMoisture (KF): ≤ 0.5%Residue on Ignition: ≤ 0.5%Arsenic (As): ≤ 3 ppmHeavy Metals (Pb): ≤ 10 ppmReducing Sugars: ≤ 0.2%, as dextroseOther Polyols: ≤ 2.0%CAS #87-99-0

23515 100gm 1kg

D-(+)-XyloseC

5H

10O

5

Formula Weight: 150.13PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 99.0%[α]20

D : +18.9° to +19.7° (c=4 in H

2O)

Loss on Drying: ≤ 1.0%Residue on Ignition: ≤ 0.05%Heavy Metals (Pb): ≤ 5 ppmChloride (Cl): ≤ 50 ppmSulfate (SO

4): ≤ 50 pm

CAS #58-86-6

23520 100gm 500gm 1kg

D-(+)-XyloseC

5H

10O

5

Formula Weight: 150.13PRODUCT SPECIFICATIONSForm: Off white to slightly yellow crystalline

powder[α]20

D : +18.0° ± 2.0° (c=4 in H

2O)

Loss on Drying: ≤ 1.0%Residue on Ignition: ≤ 0.05%CAS #58-86-6

23522 500gm 1kg

L-XyloseC

5H

10O

5


23530 5gm 10gm

Yeast, BakersSource: Baker’s YeastStorage: 4°C

23540 1lb 5lb 25lb

Yeast, BrewersCAS #68876-77-7

23546 1lb 5lb 25lb 100lb

Yeast Extract IISource: Baker’s YeastPRODUCT SPECIFICATIONSForm: Off-white to tan powderAmino Nitrogen: ≥ 4.5%Total Nitrogen: ≥ 10%Loss on Drying: ≤ 5% (at time of packaging)Ash: ≤ 15%Standard Plate Count: ≤5,000/gmSalmonella: NegativeThis product is hygroscopic.

23542

Yeast Extract Powder(Peptones)

ULTRAPURESource: Baker’s YeastPRODUCT SPECIFICATIONSForm: Off-white powderProtein (TN x 6.25): 57-72%Moisture: ≤ 6% at time of packagingSalmonella: NegativeStandard Plate Count: ≤ 15,000/gmThis product is hygroscopic.Storage: Ambient, in tightly closed containers.CAS #8013-01-2

23547 500gm 1kg

Yeast Extract Powder, Low Dust (Peptones)

Source: Baker’s YeastPRODUCT SPECIFICATIONSForm: Off-white powder, low dustProtein (TN x 6.25): 57 - 72%Moisture: ≤ 6% at time of packagingSalmonella: NegativeStandard Plate Count: ≤ 15,000/gmThis product is hygroscopic.Storage: Ambient, in tightly closed containerCAS #8013-01-2

23545 1kg 5kg

Yeast Extract Ultra Filtered

23549 250gm 1kg 5kg

Biochemicals

Biochemicals


Yeast Hydrolysate, Enzymatic(Peptones)

ULTRAPUREPRODUCT SPECIFICATIONSForm: Light tan powderIdentity: By IRSolubility (5%, H

2O): Passes test

pH (5% H2O): 5.4 - 6.2

CAS #100684-36-4

23550 1lb 5lb 25lb 50lb 100lb

Yeast Hydrolysate, Enzymatic, Low Dust(Peptones)

PRODUCT SPECIFICATIONSForm: Light tan powder, low dustIdentity: By IRSolubility (5%, H

2O): Passes test

pH (5% H2O): 5.4 - 6.2

CAS #100684-36-4

23558 1kg 5kg

Yeast Thioredoxin Reductase (NAPH), Recombinant(r-yNTR)

Source: Yeast recombinant in E. coliPRODUCT SPECIFICATIONSForm: Lyophilized powder from phosphate buffer

(20mM NaH2PO

4 pH 7.4 - 0.15M NaCl)

Activity: ≥ 5 units/mg proteinPurity: ≥ 98% as determined by SDS-PAGEFormula Weight: 36,000Unit Definition: One unit equals the change in

absorbance at 412 nm per minute at 25°C using 0.2mM NADPH containing 5mM DTNB (pH 7.0)


26116 100µg

Yeast-Torula

23551 5lb 25lb 100lb

YPD Agar, Ready-Made PowderForm: Light beige, free flowing powderpH (6.5%, H

2O): 6.5 ± 0.2

Contents: Casein Peptone: 20 gm/L Yeast Extract: 10 gm/L D-Glucose: 20 gm/L Agar: 15 gm/LTo use: Dissolve 65 gm powder per liter of


Application: •For the propagation of yeast

75857 250gm 1kg

YPD Broth, Ready-Made PowderForm: Off-white free flowing powderpH (5.0%, H

2O): 6.5 ± 0.2

Contents: Casein Peptone: 20 gm/L Yeast Extract: 10 gm/L D-Glucose: 20 gm/LTo use: Dissolve 50 gm powder per liter of

purified water. Autoclave.Application: •For the propagation of yeast

75858 250gm 1kg

2X YT AgarForm: Off-white, free-flowing powderpH (4.6%, H

2O): 7.0 ± 0.2

Contents: Casein Peptone: 16 gm/L Yeast Extract: 10 gm/L Sodium Chloride: 5 gm/L Agar: 15 gm/LTo Use: Dissolve 46 gm powder per liter of

purified water.

75865 1kg

2X YT BrothForm: Off-white, free-flowing powderpH (3.1%, H

2O): 7.0 ± 0.2

Contents: Casein Peptone: 16 gm/L Yeast Extract: 10 gm/L Sodium Chloride: 5 gm/LTo Use: Dissolve 31 gm powder per liter of

purified water.

75864 1kg

ZeinCAS #9010-66-6

23560 1lb 5lb 25lb

Zinc ChlorideACS Reagent GradeZnCl

2

Formula Weight: 136.32PRODUCT SPECIFICATIONSForm: White crystalline powderAssay: ≥ 97.0%Oxychloride: Passes testInsoluble Matter: ≤ 0.005%Nitrate (NO

3): ≤ 0.003%



Calcium (Ca): ≤ 0.06%Iron (Fe): ≤ 0.001%Lead (Pb): ≤ 0.005%Magnesium (Mg): ≤ 0.01%Potassium (K): ≤ 0.02%Sodium (Na): ≤ 0.05%

23562 500gm 2.5kg

Zinc Sulfate, HeptahydrateACS Reagent GradeZnSO

4•7H

2O


2O, 25°C): 4.4 - 6.0

Insoluble Matter: ≤ 0.01%Chloride (Cl): ≤ 5 ppmNitrate (NO

3): ≤ 0.002%


Calcium (Ca): ≤ 0.005%Iron (Fe): ≤ 0.001%Lead (Pb): ≤ 0.003%Magnesium (Mg): ≤ 0.005%Manganese (Mn): ≤ 3 ppmPotassium (K): ≤ 0.01%Sodium (Na): ≤ 0.05%Storage: Ambient, in tight containers.

25024 500gm 2.5kg

Zwittergent® DetergentsSee Sulfobetaine 8 (SB3-8), page 292See Sulfobetaine 10 (SB3-10), page 292See Sulfobetaine 12 (SB3-12), page 293See Sulfobetaine 14 (SB3-14), page 293See Sulfobetaine 16 (SB3-16), page 293See Sulfobetaine 18 (SB3-18), page 293

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