118-50-3 2-Naphthalenesulfonic acid, 7-((3-aminobenzoyl)amino)-4-hydroxy- 2-Naphthalenesulfonic acid, 7-(m-aminobenzamido)-4-hydroxy- (8CI) 7-((3-Aminobenzoyl)amino)-4-hydroxynaphthalene-2-sulphonic acid EINECS 204-256-6 NSC 1743 m-Aminobenzoyl J Acid