8-[[5-anilinosulphonyl-2-methylphenyl]azo]-7-hydroxynaphthalene-1,3-disulphonic acid;7-Hydroxy-8-[[2-methyl-5-[(phenylamino)sulfonyl]phenyl]azo]-1,3-naphthalenedisulfonic acid;Einecs 287-121-4
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