(E)-3-(3,4-Dimeth-oxy-phen-yl)-1-(2-hy-droxy-phen-yl)prop-2-en-1-one.

In the title compound, C(17)H(16)O(4), the dihedral angle between the mean planes of the hy-droxy-phenyl and dimeth-oxy-phenyl rings is 5.9 (6)°. The mean plane of the prop-2-en-1-one group makes dihedral angles of 3.6 (0) and 2.6 (7)° with the hy-droxy-phenyl and dimeth-oxy-phenyl rings, respectively. An intra-molecular O-H⋯O hydrogen bond occurs. The crystal packing is stabilized by weak inter-molecular C-H⋯O contacts and π-π stacking inter-actions [centroid-centroid distance = 3.6571 (8) Å].