()-3-{4,6-Dimeth-oxy-2-[()-4-meth-oxy-styr-yl]-3-methyl-phen-yl}-1-(2-hy-droxy-5-meth-oxy-phen-yl)prop-2-en-1-one.

In the title compound, CHO, the benzene rings in the resveratrol moiety are connected by a C=C double bond, and the hydroxyl group containing a benzene ring and the central benzene ring are linked through a C=(O)-C=C (enone) moiety to form a chalcone unit. An intra-molecular O-H⋯O hydrogen bond generates an (6) ring motif. In the crystal, pairs of C-H⋯O hydrogen bonds generate dimers and additional weak C-H⋯O inter-actions link the dimers into chains propagating along the -axis direction.