2,3,5,6-Tetramethylbenzoic acid 2-(diethylamino)ethyl ester hydrochloride 2-Diethylaminoethyl 2,3,5,6-tetramethylbenzoate hydrochloride 93735-80-9 BENZOIC ACID, 2,3,5,6-TETRAMETHYL-, 2-(DIETHYLAMINO)ETHYL ESTER, HYDROCHLORIDE NSC 27665