8-amino-1-hydroxynaphthalene-3,5-disulphonic acid, 1-amino-8-hydroxy-naphthalene-4,6-disulphonic acid, 4-Amino-5-hydroxy-1,7-naphthalenedisulfonic acid, 1-hydroxy-8-aminonaphthalene-3,5-disulphonic acid, 1 AMINO 8 HYDROXY 4:6 DISULFONIC ACID, 5-hydroxy-4-aminonaphthalene-1,7-disulphonic acid, 4-amino-5-hydroxy-naphthalene-1,7-disulphonic acid, K ACID, 4-Amino-5-naphthol-1,7-disulfonic acid, 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid, 1-amino-8-naphtho-4,6-Disulfonic acid, EUROPEAN K-ACID, 8-AMINO-1-NAPHTHOL-3,5-DISULFONIC ACID