2,2-Diphenyl-2-methoxyacetic acid (1-methyl-4-piperidyl) ester hydrochloride 2909-89-9 ACETIC ACID, 2,2-DIPHENYL-2-METHOXY-, (1-METHYL-4-PIPERIDYL) ESTER, HYDROCHLORID Acetic acid, 2,2-diphenyl-2-methoxy-, (1-methyl-4-piperidyl) ester, hydrochloride