An axially chiral 1,2-diketone: 1-(3,4-di­methoxy­phenyl)­propane-1,2-dione

The O atom of the distal carbonyl group in 1-(3,4-di­methoxy­phenyl)­propane-1,2-dione, C₁₁H₁₂O₄, is displaced from the plane that is defined by the proximal C=O double bond and the aromatic entity of the mol­ecule. This arrangement gives rise to a stereogenic C—C axis.