potassium sodium 4,4'-bis(4-phenyl-2H-1,2,3-triazol-2-yl)stilbene-2,2'-disulphonate;2,2'-(1,2-Ethenediyl)bis[5-(4-phenyl-2H-1,2,3-triazol-2-yl)benzenesulfonic acid]1-potassium 1'-sodium salt
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