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Acta Crystallogr Sect E Struct Rep Online. 2009 Aug 15;65(Pt 9):o2146. doi: 10.1107/S1600536809031183.

5,7-Dimethoxy-isobenzofuran-1(3H)-one.

Abstract

The asymmetric unit of the title compound, C(10)H(10)O(4), which has been isolated from rhizoma Polygonum Cuspidatum, a Chinese folk medicine, contains two crystallographically independent mol-ecules. The mol-ecules are essentially planar, with a maximum deviation of 0.061 (2) Å from the best planes. The crystal packing is stabilized by weak inter-molecular C-H⋯O hydrogen-bonding inter-actions, with a stacking direction of the mol-ecules parallel to [101].

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