(1)Benzothieno(2,3-d)pyrimidin-4(1H)-one, 5,6,7,8-tetrahydro-6-methyl- 5,6,7,8-Tetrahydro-6-methyl-(1)benzothieno(2,3-d)pyrimidin-4(1H)-one 95211-70-4 BRN 5541024