Hydrogen (ethyl)(4-(alpha-(4-(ethyl(sulphonatobenzyl)amino)phenyl)benzylidene)cyclohexa-2,5-dien-1-ylidene)(sulphonatobenzyl)ammonium;2-[[ethyl-[4-[[4-[ethyl-[(2-sulfonatophenyl)methyl]azaniumylidene]-1-cyclohexa-2,5-dienylidene]-phenyl-methyl]phenyl]amino]methyl]benzenesulfonate; hydron
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