(1)Benzothieno(2,3-d)pyrimidin-4(1H)-one, 2,3,5,6,7,8-hexahydro-3-methyl-2-thioxo- 3-Methyl-2,3,5,6,7,8-hexahydro-2-thioxo-(1)benzothieno(2,3-d)pyrimidin-4(1H)-one 38201-61-5