2-(Diethylamino)ethyl 3-amino-4-butoxybenzoate hydrochloride 3-Amino-4-butoxybenzoic acid 2-(diethylamino)ethyl ester hydrochloride 35288-47-2 BENZOIC ACID, 3-AMINO-4-BUTOXY-, 2-(DIETHYLAMINO)ETHYL ESTER, HYDROCHLORIDE beta-(Diethylamino)ethyl 3-amino-4-n-butoxybenzoate hydrochloride