Synonyms: 1-Naphthol-3,5-disulfonicacid, 8-amino- (6CI);1-Amino-8-hydroxynaphthalene-4,6-disulfonic acid;1-Amino-8-naphthol-4,6-disulfonic acid;4-Amino-5-hydroxy-1,7-naphthalenedisulfonic acid;4-Amino-5-naphthol-1,7-disulfonic acid;8-Amino-1-hydroxy-3,5-naphthalenedisulfonic acid;8-Amino-1-naphthol-3,5-disulfonic acid;K acid;NSC 7110;