4-(2-Fluorophenyl)-6-methyl-2-(1-piperazinyl)thieno(2,3-d)pyrimidine monohydrochloride 99487-26-0 MCI 225 Thieno(2,3-d)pyrimidine, 4-(2-fluorophenyl)-6-methyl-2-(1-piperazinyl)-, monohydrochloride