6-Amino-5-hydroxy-naphthalin-1-sulfonsaeure, 6-amino-5-hydroxy-naphthalene-1-sulfonic acid, EINECS 209-347-4, 2-Amino-naphthol-(1)-sulfonsaeure-(5), 6-Amino-5-hydroxy-1-naphthylsulfonic acid, 6-Amino-5-hydroxynaphthalene-1-sulphonic acid, 2-amino-1-naphthol-5-sulfonic acid, 6-Amino-5-hydroxy-1-naphthalenesulfonic acid, 2-Amino-1-Hydroxynaphthalen-5-Suphonic Acid