2-Amino-8-(beta-ribofuranosyl)imidazo(1,2-a)-1,3,5-triazin-4-one 5-Aza-7-deazaguanosine 67410-65-5 Imidazo(1,2-a)-1,3,5-triazin-4(8H)-one, 2-amino-8-beta-D-ribofuranosyl- NSC 344511