Einecs 257-273-6

4,5,5'-TRIHYDROXY-3,4'-AZODI-2,7-NAPHTHALENEDISULFONIC ACID TETRASODIUM SALT

2,7-naphthalenedisulfonicacid,4,5-dihydroxy-3-[(8-hydroxy-3,6-disulfo-1-napht

8-(1,8-DIHYDROXY-3,6-DISULFO-2-NAPHTHYLAZO)-1-NAPHTHOL-3,6-DISULFONIC ACID TETRASODIUM SALT