2,7-Naphthalenedisulfonic acid, 4-amino-3,6-bis((5-((4-amino-6-chloro-1,3,5-triazin-2-yl)amino)-2-sulfophenyl)azo)-5-hydroxy-, tetrasodium salt 85631-74-9 EINECS 288-022-9 Tetrasodium 4-amino-3,6-bis((5-((4-amino-6-chloro-1,3,5-triazin-2-yl)amino)-2-sulphonatophenyl)azo)-5-hydroxynaphthalene-2,7-disulphonate