1,4,5,6-Tetrahydro-5-(4-chlorophenyl)pyrimidine monohydrochloride 114703-73-0 5-(4-Chlorophenyl)-1,4,5,6-tetrahydropyrimidine hydrochloride CRL 41336 Pyrimidine, 1,4,5,6-tetrahydro-5-(4-chlorophenyl)-, monohydrochloride