2-Naphthalenesulfonic acid, 7-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)methylamino)-4-hydroxy-3-((2-sulfophenyl)azo)-, trisodium salt 70210-43-4 EINECS 274-440-9 Trisodium 7-((4-chloro-6-((4-sulphonatophenyl)amino)-1,3,5-triazin-2-yl)methylamino)-4-hydroxy-3-((2-sulphonatophenyl)azo)naphthalene-2-sulphonate