4,4'-Bis((6-anilino-4-((2-hydroxyethyl)methylamino)-1,3,5-triazin-2-yl)amino)stilbene-2,2'-disulphonic acid;2,2'-(E)-ethene-1,2-diylbis[5-({4-[(2-hydroxyethyl)(methyl)amino]-6-(phenylamino)-1,3,5-triazin-2-yl}amino)benzenesulfonic acid]
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