The title compound, 4 C20H18N2O4, is a chalcone derivative of pyrazole.The pyrazole ring is inclined at a dihedral angle of 19.29 (12)° to the methoxyphenyl ring mean Liquid Soap plane, and by 1.19 (13)° to the phenyl ring.
The molecular structure is stabilized by an intramolecular O—H.O hydrogen bond, making an almost planar (r.m.s.
deviation = 0.0243 Å) six membered ring.