div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader040fdocumentsinreader040viewer2022020522575067ff1a28ab0f07ae1f4fhtml5page1jpg target=_blank img data-url=documentoccurrence-of-4-amino-5-imidazolecarboxamide-as-a-pentose-derivativehtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Occurrence of 4-Amino-5-imidazolecarboxamide as a Pentose Derivative loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader040fdocumentsinreader040viewer2022020522575067ff1a28ab0f07ae1f4fhtml5thumbnails1jpg width=140 height=200 adivp© 1953 Nature Publishing Grouppdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader040fdocumentsinreader040viewer2022020522575067ff1a28ab0f07ae1f4fhtml5page2jpg target=_blank img data-url=documentoccurrence-of-4-amino-5-imidazolecarboxamide-as-a-pentose-derivativehtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: Occurrence of 4-Amino-5-imidazolecarboxamide as a Pentose Derivative loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader040fdocumentsinreader040viewer2022020522575067ff1a28ab0f07ae1f4fhtml5thumbnails2jpg width=140 height=200 adivp© 1953 Nature Publishing Grouppdiv