Acta Cryst. (2005). E61, o1403-o1405  [ doi:10.1107/S1600536805011633 ]

3,5-Dihydroxy-2-hydroxymethyl-4H-pyran-4-one

G.-M. Yao, Y.-B. Wang, L.-Q. Wang and G.-W. Qin

Abstract: In the title compound, C₆H₆O₅, an extract from Gaultheria leucocarpa B1 var. crenulata, the asymmetric unit consists of two nearly parallel molecules with different conformations linked by a strong intermolecular O-HO hydrogen bond. The pyranoid ring in both molecules is planar, and the dihedral angle formed by these planes is 7.14 (15)°. The crystal packing is stabilized by O-HO intermolecular hydrogen bonds, resulting in the formation of a two-dimensional network.

Online 23 April 2005

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