1-Methyl-4-(3-(3-methoxythioxanthen-9-ylidene)propyl)piperazine dihydrochloride 63869-82-9 N 775 Piperazine, 1-methyl-4-(3-(3-methoxythioxanthen-9-ylidene)propyl)-, dihydrochloride Thioxanthene, 3-methoxy-9-(3-(4-methylpiperazinyl)propylidene)-, dihydrochloride