Einecs 280-307-6

4-amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[(4-sulphophenyl)azo]naphthalene-2,7-disulphonic acid, sodium salt

4-Amino-5-hydroxy-3-((4-nitrophenyl)azo)-6-((4-sulphophenyl)azo)naphthalene-2,7-disulphonic acid, sodium salt

4-Amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[(4-sulfophenyl)azo]-2,7-naphthalenedisulfonic acid/sodium,(1:x) salt