Disodium 4,4'-bis((4,6-bis(bis(2-hydroxyethyl)amino)-1,3,5-triazin-2-yl)amino)stilbene-2,2'-disulphonate;disodium 2,2'-(E)-ethene-1,2-diylbis[5-({4,6-bis[bis(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl}amino)benzenesulfonate]
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