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

6-[[4-[[3-[[[5-(Aminocarbonyl)-1-ethyl-1,6-dihydro-2-hydroxy-4-methyl-6-oxopyridin]-3-yl]azo]-4-(sodiosulfo)phenyl]amino]-6-fluoro-1,3,5-triazin-2-yl]amino]-2-naphthalenesulfonic acid sodium salt