7-(3-aminobenzamido)-4-hydroxynaphthalene-2-sulfonic acid

7-[(3-Aminobenzoyl)amino]-4-hydroxy-2-naphthalenesulfonic acid

7-[(3-aminobenzoyl)amino]-4-hydroxynaphthalene-2-sulfonic acid

7-[(3-aminobenzoyl)amino]-4-hydroxy-naphthalene-2-sulfonic acid

7-[(3-aminobenzoyl)amino]-4-hydroxynaphthalene-2-sulphonic acid

7-[(3-azanylphenyl)carbonylamino]-4-hydroxy-naphthalene-2-sulfonic acid