(1)BENZOTHIENO(2,3-d)PYRIMIDIN-4-ONE, 5,6,7,8-TETRAHYDRO-3-BENZYL-2-METHYL- 3-Benzyl-2-methyl-4-oxo-5,6-tetramethylenethieno(2,3-d)pyrimidine 35973-85-4 BRN 0555273