2-Naphthalenesulfonic acid, 8-4-(4-methylphenyl)sulfonyloxyphenylazo-5-4-(4-nitro-2-sulfophenyl)aminophenylazo-, disodium salt

disodium 8-[[4-[[(4-methylphenyl)sulphonyl]oxy]phenyl]azo]-5-[[4-[(4-nitro-2-sulphonatophenyl)amino]phenyl]azo]naphthalene-1-sulphonate

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