1-Phenethyl-4-piperidyl 3,4,5-trimethoxybenzoate hydrochloride 3684-25-1 4-Piperidinol, 1-phenethyl-, 3,4,5-trimethoxybenzoate, hydrochloride Benzoic acid, 3,4,5-trimethoxy-, 1-phenethyl-4-piperidinyl ester, hydrochloride