119-40-4 2-Naphthalenesulfonic acid, 4-hydroxy-7-(phenylamino)- 2-Naphthalenesulfonic acid, 7-anilino-4-hydroxy- 7-Anilino-4-hydroxy-2-naphthalenesulfonic acid NSC10451 Phenyl I Acid Phenyl J Acid Phenyl J-acid