disodium 5-[[4-[[(4-methylphenyl)sulphonyl]oxy]phenyl]azo]-8-[[4-[(4-nitro-2-sulphonatophenyl)amino]phenyl]azo]naphthalene-2-sulphonate

2-Naphthalenesulfonic acid, 5-[[4-[[(4-methylphenyl)sulfonyl] oxy]phenyl]azo]-8-[[4-[(4-nitro-2-sulfophenyl )amino]phenyl]azo]-, disodium salt

5-[[4-[[(4-Methylphenyl)sulfonyl]oxy]phenyl]azo]-8-[[4-[[4-nitro-2-(sodiooxysulfonyl)phenyl]amino]phenyl]azo]-2-naphthalenesulfonic acid sodium salt