3-amino-8-naphthol-4,6-disulfonic acid, 6-amino-1-naphthol-3,5-disulphonic acid, 2-amino-5-hydroxy-naphthalene-1,7-disulfonic acid, 6-amino-1-hydroxy-3,5-naphthalenedisulfonic acid, SULFO J ACID, 2-amino-5-naphthol-1,7-disulfonic acid, 6-amino-1-hydroxynaphthalene-3,5-disulphonic acid, 2-amino-5-hydroxy-1,7-naphthalenedisulphonic acid, 5-hydroxy-2-aminonaphthalene-1,7-disulphonic acid, 2-amino-5-hydroxynaphthalene-7,1-disulphonic acid, 7-amino-4-hydroxynaphthalene-2,8-disulfonic acid, 1-hydroxy-6-aminonaphthalene-3,5-disulphonic acid, 3-Amino-8-hydroxy-4,6-disulfonaphthalene, 3-amino-4,6-disulfo-8-hydroxynaphthalene, 6-Amino-1-naphthol-3,5-disulfonic acid