1H-v-Triazolo(4,5-d)pyrimidine-5,7(4H,6H)-dione, 4-methyl- 2083-04-7 3-Methyl-8-azaxanthin 4-Methyl-1H-v-triazolo(4,5-d)pyrimidine-5,7(4H,6H)-dione BRN 0525897