3-[[4-(benzoylethylamino)-2-methylphenyl]azo]-4-hydroxynaphthalene-1-sulphonic acid

3-[[4-[(Benzoyl)ethylamino]-2-methylphenyl]azo]-4-hydroxy-2-naphthalenesulfonic acid

1-Naphthalenesulfonic acid, 3-[[4-(benzoylethylamino) -2-methylphenyl]azo]-4-hydroxy-