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. 2009 Nov 28;65(Pt 12):o3276-7.
doi: 10.1107/S1600536809050715.

5,7-Dihydr-oxy-3,6,8-trimethoxy-flavone

Hui-Ping Xiong, Zhi-Jun Wu, Fa-Tang Chen, Wan-Sheng Chen

5,7-Dihydr-oxy-3,6,8-trimethoxy-flavone

Hui-Ping Xiong et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

5,7-dihydr-oxy-3,6,8-trimeth-oxy-4H-chromen-4-one), C(18)H(16)O(7), is a flavone that was isolated from Ainsliaea henryi. There are two mol-ecules in the asymmetric unit, one of which has a disordered meth-oxy group [occupancy ratio 0.681 (9):0.319 (9)]. Both mol-ecules have an intra-molecular O-H⋯O hydrogen bond. In the crystal, mol-ecules are linked into O-H⋯O hydrogen-bonded chains parallel to [110].

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Figures

Fig. 1.
Fig. 1.
The molecular structure showing the atom-labelling scheme with displacement ellipsoids drawn at the 30% probability level. H atoms are shown as small spheres of arbitrary radius.
See this image and copyright information in PMC

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