76552-35-7

4-[3-[3-carboxy-5-hydroxy-1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl]allylidene]-4,5-dihydro-5-oxo-1-(2,2,2-trifluoroethyl)-1H-pyrazole-3-carboxylic acid