In the title chalcone [systemetic name 1-(2,4-dimeth-oxy-phen-yl)-3-(3,4,5-trimeth-oxy-phen-yl)prop-2-en-1-one], C(20)H(22)O(6), the dihedral angle between the plane of the two benzene rings is 7.03 (4)° with all but one of the meth-oxy groups essentially co-planar with these rings [C-C-O-C torsion angles = -76.1 (2), -0.7 (3), 1.8 (3), -6.2 (3), 2.0 (3)°]. An intra-molecular C-H⋯O inter-action occurs. The crystal packing is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.

DOI: 10.1107/S1600536810040845

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Cite this paper

@inproceedings{Tonder201023445Pentamethoxychalcone, title={2′,3,4,4′,5-Penta­meth­oxy­chalcone}, author={Johannes H. van Tonder and T. J. Muller and Barend C. B. Bezuidenhoudt}, booktitle={Acta crystallographica. Section E, Structure reports online}, year={2010} }