Benzenesulfonic acid, 2,2'-((E)-1,2-ethenediyl)bis(5-((E)-(2-amino-1-naphthalenyl)azo)-;NSC 5068;2,2'-(E)-ethene-1,2-diylbis{5-[(E)-(2-aminonaphthalen-1-yl)diazenyl]benzenesulfonic acid}
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