(1)Benzothieno(2,3-d)pyrimidin-4(1H)-one, 5,6,7,8-tetrahydro-2-(chloromethyl)- 2-Chloromethyl-5,6,7,8-tetrahydrobenzo(b)thieno(2,3-d)pyrimidin-4(3H)-one 5,6,7,8-Tetrahydro-2-(chloromethyl)-(1)benzothieno(2,3-d)pyrimidin-4(1H)-one 89567-03-3 BRN 3551590