8-chloro-1-naphthol-3,6-disulfonic acid

4-Chloro-5-hydroxy-2,7-naphthalenedisulfonic acid

4-chloro-5-hydroxynaphthalene-2,7-disulfonic acid

4-chloro-5-hydroxy-naphthalene-2,7-disulfonic acid

4-chloro-5-hydroxynaphthalene-2,7-disulphonic acid