2,2-Diphenyl-2-methoxyacetic acid (1-methyl-2-piperidyl)methyl ester hydrochloride 2909-92-4 ACETIC ACID, 2,2-DIPHENYL-2-METHOXY-, (1-METHYL-2-PIPERIDYL)METHYL ESTER, HYDROC Acetic acid, 2,2-diphenyl-2-methoxy-, (1-methyl-2-piperidyl)methyl ester, hydrochloride