2-Acetamido-5-hydroxy-7-naphthalenesulfonic acid 2-Acetylamino-5-hydroxy-7-naphthalenesulfonic acid 2-Naphthalenesulfonic acid, 7-(acetylamino)-4-hydroxy- 2-Naphthalenesulfonic acid, 7-acetamido-4-hydroxy- (8CI) 6334-97-0 7-Acetamido-4-hydroxynaphthalene-2-sulphonic acid EINECS 228-715-5 NSC 7567