1-Hydroxy-2-[5-[4-chloro-6-(2-ethoxyethoxy)-1,3,5-triazin-2-ylamino]-2-sulfophenylazo]-7-[2,5-disulfophenylazo]-8-aminonaphthalene-3,6-disulfonic acid pentasodium salt

pentasodium 4-amino-6-[[5-[[4-chloro-6-(2-ethoxyethoxy)-1,3,5-triazin-2-yl]amino]-2-sulphonatophenyl]azo]-3-[(2,5-disulphonatophenyl)azo]-5-hydroxynaphthalene-2,7-disulphonate