2,6-Diaminotoluene-4-sulfonic acid 3,5-Diamino-4-methylbenzenesulfonic acid 3,5-Diamino-p-toluenesulfonic acid 98-25-9 Benzenesulfonic acid, 3,5-diamino-4-methyl- NSC43299 p-Toluenesulfonic acid, 3,5-diamino-