118-88-7 3-Amino-6-methylbenzenesulfonic acid 4-Amino-2-sulfotoluene 4-Aminotoluene-2-sulphonic acid 4-Methyl-3-sulfoaniline 5-Amino-2-methylbenzenesulfonic acid 5-Amino-o-toluenesulfonic acid 83156-57-4 AI3-23219 Benzenesulfonic acid, 5-amino-2-methyl- EINECS 204-282-8 NSC 22958 o-Toluenesulfonic acid, 5-amino- (8CI) p-Toluidine-o-sulfonic acid