3-Diethylaminobenzenesulfonic acid 97-20-1 Benzenesulfonic acid, 3-(diethylamino)- Diethylaniline-m-sulfonic acid Diethylmetanilic acid Metanilic acid, N,N-diethyl- N,N-Diethyl-3-sulfoaniline N,N-Diethylmetanilic acid NSC8634 m-(Diethylamino)benzenesulfonic acid