1-Butyryl-4-(phenylallyl)piperazine hydrochloride 1-Butyryl-4-cinnamylpiperazine 1-Butyryl-4-cinnamylpiperazine hydrochloride 1-n-Butyryl-4-cinnamyl piperazine hydrochloride 17719-89-0 17730-82-4 AP-237 P 237 Piperazine, 1-butyryl-4-(phenylallyl)-, hydrochloride Piperazine, 1-butyryl-4-cinnamyl-, hydrochloride