4,4'-bis[[1-[[(4-methylphenyl)amino]carbonyl]-2-oxopropyl]azo][1,1'-biphenyl]-2,2'-disulphonic acid;4,4'-Bis[[1-[[(4-methylphenyl)amino]carbonyl]-2-oxopropyl]azo][1,1'-biphenyl]-2,2'-disulfonic acid;Einecs 285-186-3
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