3-[5-(2,4-Dichlorophenyl)-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl]-4-hydroxy-2H-chromen-2-one

In the title compound, C24H16Cl2N2O3, the chromene ring system is almost planar, with a maximum deviation of 0.042 (1) Å. It makes dihedral angles of 3.72 (6), 73.37 (5) and 12.00 (5)° with the dihydropyrazole, benzene and phenyl rings, respectively. An intramolecular O—H...N hydrogen bond forms an S(6) ring motif. In the crystal, molecules are linked via C—H...O interactions, forming an infinite chain along the a axis. The crystal packing is further stabilized by a π–π stacking interaction [centroid–centroid distance = 3.5471 (7) Å] and a Cl...Cl short contact [Cl...Cl = 3.214 (1) Å].