(1,2,5)Thiadiazolo(3,4-d)pyrimidin-7-amine (1,2,5)Thiadiazolo(3,4-d)pyrimidine, 7-amino- (8CI) 2829-57-4 4-27-00-09635 (Beilstein Handbook Reference) 6-Amino-8-thiapurine 7-Amino(1,2,5)thiadiazolo(3,4-d)pyrimidine BRN 0131778 NSC 34454