1-(Phenylallyl)-4-valerylpiperazine hydrochloride 1-Cinnamyl-4-valerylpiperazine hydrochloride 17730-62-0 Piperazine, 1-(phenylallyl)-4-valeryl-, hydrochloride Piperazine, 1-cinnamyl-4-valeryl-, monohydrochloride