22344-60-1 BENZOIC ACID, p-(2-METHYL-4-PIPERIDINO-2-BUTENYL)-, (2-(DIETHYLAMINO)ETHYL) ESTE Benzoic acid, p-(2-methyl-4-piperidino-2-butenyl)-, (2-(diethylamino)ethyl) ester, dihydrochloride