1-Methylthioguanine 16714-57-1 2-Amino-1-methyl-9H-purine-6-thione 6H-Purine-6-thione, 2-amino-1,7-dihydro-1-methyl- (9CI) 9H-Purine-6-thione, 2-amino-1-methyl- NSC 43405 Purine-6(1H)-thione, 2-amino-1-methyl- SARCIN, ALPHA