66902-40-7 ACETIC ACID, DIPHENYL-, 1-METHYL-2-(1-METHYL-2-PIPERIDYL)ETHYL ESTER, HYDROCHLOR Acetic acid, diphenyl-, 1-methyl-2-(1-methyl-2-piperidyl)ethyl ester, hydrochloride Diphenylacetic acid 1-methyl-2-(1-methyl-2-piperidyl)ethyl ester hydrochloride