2-(6-Methyl-2-(1-piperazinyl)thieno(2,3-d)pyrimidin-4-yl)benzonitrile monohydrochloride 99487-38-4 Benzonitrile, 2-(6-methyl-2-(1-piperazinyl)thieno(2,3-d)pyrimidin-4-yl)-, monohydrochloride