3-Aminocarbazole-9-carboxylic acid 2-(diethylamino)ethyl ester hydrochloride 64057-92-7 CARBAZOLE-9-CARBOXYLIC ACID, 3-AMINO-, (2-DIETHYLAMINOETHYL) ESTER, HYDROCHLORID Carbazole-9-carboxylic acid, 3-amino-, 2-(diethylamino)ethyl ester, hydrochloride Diethylaminoethyl 3-aminocarbazol-N-carboxylate hydrochloride