1,3-Diaminobenzene-4-sulfonic acid 1,3-Diaminobenzene-6-sulfonic acid 1,3-Diaminobenzenesulfonic acid 1,3-Phenylenediamine-4-sulfonic acid 2,4-Diaminobenzenesulfonic acid 88-63-1 Benzenesulfonic acid, 2,4-diamino- Kyselina 1,3-fenylendiamin-4-sulfonova Kyselina 2,4-diaminobenzensulfonova NSC7835 WLN: ZR BSWQ EZ m-Phenylenediamine-4-sulfonic acid m-Phenylenediaminesulfonic acid o-Aminosulfanilic acid