2,7-Naphthalenedisulfonic acid, 3,3'-(1,3-phenylenebis(imino(6-chloro-1,3,5-triazine-4,2-diyl)imino(6-sulfo-3,1-phenylene)azo))bis(5-amino-4-hydroxy-6-((4-sulfophenyl)azo)-, octasodium salt 83137-18-2 EINECS 280-195-9 Octasodium 3,3'-(1,3-phenylenebis(imino(6-chloro-1,3,5-triazine-4,2-diyl)imino(6-sulphonato-3,1-phenylene)azo))bis(5-amino-4-hydroxy-6-((4-sulphonatophenyl)azo)naphthalene-2,7-disulphonate)