2-Naphthalenesulfonic acid, 6-((4-((3-((5-(aminocarbonyl)-1-ethyl-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridinyl)azo)-4-sulfophenyl)amino)-6-fluoro-1,3,5-triazin-2-yl)amino)-, disodium salt 75268-66-5 Disodium 6-((4-((3-((5-(aminocarbonyl)-1-ethyl-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridyl)azo)-4-sulphonatophenyl)amino)-6-fluoro-1,3,5-triazin-2-yl)amino)naphthalene-2-sulphonate EINECS 278-155-0