1,3-Dimethyl-8-azaxanthin 1H-1,2,3-Triazolo(4,5-d)pyrimidine-5,7(4H,6H)-dione, 4,6-dimethyl- (9CI) 1H-s-Triazolo(4,5-d)pyrimidine-5,7(4H,6H)-dione, 4,6-dimethyl- 1H-v-Triazolo(4,5-d)pyrimidine-5,7(4H,6H)-dione, 4,6-dimethyl- 2278-15-1 4,6-Dimethyl-1H-s-triazolo(4,5-d)pyrimidine-5,7(4H,6H)-dione 4,6-Dimethyl-1H-v-triazolo(4,5-d)pyrimidine-5,7(4H,6H)-dione NSC 39254 NSC 93412