2-Methyl-1-(1-oxobutyl)-4-(3-phenyl-2-propenyl)piperazine monohydrochloride 98608-59-4 N-Butyryl-N'-cinnamyl-2-methylpiperazine hydrochloride Piperazine, 2-methyl-1-(1-oxobutyl)-4-(3-phenyl-2-propenyl)-, monohydrochloride