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;Einecs 279-966-2
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