1-Butyl-4-piperidyl benzoate hydrochloride 4-Piperidinol, 1-butyl-, benzoate, hydrochloride 78219-15-5 Benzoic acid, 1-butyl-4-piperidyl ester hydrochloride Piperidine, 1-butyl-4-hydroxy-, benzoate, hydrochloride