3-Amino-4-butoxybenzoic acid 2-(dimethylamino)ethyl ester hydrochloride Benzoic acid, 3-amino-4-butoxy-, 2-(dimethylamino)ethyl ester, hydrochloride DG1502990 Dimethylaminoethyl 3-amino-4-butoxybenzoate hydrochloride Parabutoxate hydrochloride