1,4-Dihydro-5-methyl-6-(2-methylpropyl)-4-oxothieno(2,3-d)pyrimidine-2-carboxylic acid 83153-39-3 MJ 12175 Thieno(2,3-d)pyrimidine-2-carboxylic acid, 1,4-dihydro-5-methyl-(2-methylpropyl)-4-oxo- Thieno(2,3-d)pyrimidine-2-carboxylic acid, 1,4-dihydro-5-methyl-6-(2-methylpropyl)-4-oxo- Tiprinast Tiprinastum [Latin] Triprinast