1-(2-Cyanoethyl)-4-(2-tolyl)piperazine hydrochloride 1-Piperazinepropanenitrile, 4-(2-methylphenyl)-, monohydrochloride 4-(2-Methylphenyl)-1-piperazinepropanenitrile hydrochloride 65876-31-5 VUFB-8981