pentasodium 4-amino-3-[[5-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-2-sulphonatophenyl]azo]-6-[(2,5-disulphonatophenyl)azo]-5-hydroxynaphthalene-2,7-disulphonate

4-Amino-3-[[5-[[(5-chloro-2,6-difluoropyrimidin)-4-yl]amino]-2-sodiosulfophenyl]azo]-6-[[2,5-di(sodiosulfo)phenyl]azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt