2,2-Diphenyl-2-methoxyacetic acid 3-(dimethylamino)butyl ester hydrochloride 2893-70-1 ACETIC ACID, 2,2-DIPHENYL-2-METHOXY-, 3-(DIMETHYLAMINO)BUTYL ESTER, HYDROCHLORID Acetic acid, 2,2-diphenyl-2-methoxy-, 3-(dimethylamino)butyl ester, hydrochloride