In the title chalcone derivative, C19H20O5, the dihedral angle between the planes of the benzene rings is 3.97 (8)°. In the monosubstituted ring, the methoxy C atom is almost coplanar with the ring [deviation = 0.016 (3) Å]. In the trisubstituted ring, the C atoms of the ortho, meta and para methoxy sustituents deviate by −0.030 (2), 1.127 (2) and −0.052 (2) Å, respectively. In the crystal, molecules are linked by weak C—H...O hydrogen bonds, forming C(9) chains propagating along [010].
