4-[3-[4-(dimethylamino)phenyl]allylidene]-4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylic acid

4-[3-[4-(Dimethylamino)phenyl]-2-propenylidene]-4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylic acid