3-hydroxynaphthalene-2,7-disulfonicacid; 3-Hydroxy-2,7-naphthalenedisulfonic Acid; 2-Hydroxy-3,6-naphthalenedisulfonic Acid; 2-Naphthol-3,6-disulfonic Acid 2-Hydroxy-3,6-naphthalenedisulfonate; 2-Naphthol-3,6-disulfonate ; 3-Hydroxy-2,7-naphthalenedisulfonate Fericon
