1H-Pyrazole-3-carboxylicacid,4-[5-[3-carboxy-5-hydroxy-1-(4-sulfophenyl)-1H-pyrazol-4-yl]-2,4-pentadienylidene]-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-(9CI); 2-Pyrazolin-3-carboxylic acid,4-[5-[3-carboxy-5-hydroxy-1-(p-sulfophenyl)pyrazol-4-yl]-2,4-pentadienylidene]-5-oxo-1-(p-sulfophenyl)-(8CI)
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