Einecs 229-446-6

8-(6-hydroxy-2-naphthylsulfonamido)-1-naphthol-3,5-disulfonic acid

4-[(6-Hydroxy-2-naphtylsulfonyl)amino]-5-hydroxy-1,7-naphthalenedisulfonic acid

5-hydroxy-4-[[(6-hydroxy-2-naphthyl)sulphonyl]amino]naphthalene-1,7-disulphonic acid