16480-43-6 17681-50-4 2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-3-((5-((4-chloro-6-((4-sulfophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-sulfophenyl)azo)-4-hydroxy-, tetrasodium salt EINECS 241-663-8 Tetrasodium 5-(benzoylamino)-3-((5-((4-chloro-6-((4-sulphonatophenyl)amino)-1,3,5-triazin-2-yl)amino)-2-sulphonatophenyl)azo)-4-hydroxynaphthalene-2,7-disulphonate