Synonyms: 5,6-Dimethyl-4-phenyl-2-(1-piperazinyl)thieno(2,3-d)pyrimidine monohydrochloride;Thieno(2,3-d)pyrimidine, 5,6-dimethyl-4-phenyl-2-(1-piperazinyl)-, monohydrochloride;AC1MI4O5;LS-152499;5,6-dimethyl-4-phenyl-2-piperazin-1-ylthieno[2,3-d]pyrimidine hydrochloride;99487-08-8