Acta Cryst. (2005). E61, o3086-o3088  [ doi:10.1107/S1600536805026991 ]

5-Hydroxy-3,7-dimethoxy-2-phenyl-4H-1-benzopyran-4-one

H.-K. Fun, I. A. Razak, N. Boonnak, S. Laphookhieo and S. Chantrapromma

Abstract: The title compound, C₁₇H₁₄O₅, a flavone, was isolated from the rhizomes of Kaempferia parviflora. There are two crystallographically independent molecules in the asymmetric unit. The molecular structure is stabilized by intramolecular O-HO and C-HO hydrogen bonds. C-HO intermolecular hydrogen bonds and - stacking interactions link the molecules into a network.

Online 31 August 2005

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