Einecs 279-966-2

sodium 4-[4-[[3-methyl-4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo]anilino]benzenesulphonate

4-[[4-[[3-Methyl-4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo]phenyl]amino]benzenesulfonic acid sodium salt