(1,2,4)Triazino(3,4-f)purine-6,8(7H,9H)-dione, 1-ethyl-1,4-dihydro-9-methyl-3-(2-thienyl)- 1-Ethyl-1,4-dihydro-9-methyl-3-(2-thienyl)-(1,2,4)triazino(3,4-f)purine-6,8(7H,9H)-dione 105774-53-6 BRN 5648235