2-Amino-1,7-dihydro-7-methyl-6H-purin-6-one 2-Amino-7-methylhypoxanthine 578-76-7 6H-Purin-6-one, 2-amino-1,7-dihydro-7-methyl- (9CI) 7-Methylguanine EINECS 209-431-0 GUANINE, 7-METHYL- Guanine, 7-methyl- (VAN) (8CI) N(sup 7)-Methylguanine N7-Methylguanine NSC 193444