Einecs 229-422-5

8-(2,4-dichlorobenzamido)-1-naphthol-3,5-disulfonic acid

4-(2,4-Dichlorobenzoylamino)-5-hydroxy-1,7-naphthalenedisulfonic acid

4-[(2,4-dichlorobenzoyl)amino]-5-hydroxynaphthalene-1,7-disulphonic acid