Acta Cryst. (2012). E68, o2332-o2333 [ doi:10.1107/S1600536812029704 ]
Abstract: The title compound, C11H12O3, is essentially planar, with an r.m.s. deviation of 0.179 Å from the mean plane through the 14 non-H atoms in the molecule. The benzene ring and the pyranone mean plane are inclined at 13.12 (6)° to one another and the pyranone ring adopts a flattened chair conformation. In the crystal, O-HO hydrogen bonds and C-HO contacts form R12(6) rings and link molecules into chains along b. Additional C-HO contacts generate inversion dimers, with R22(8) ring motifs, and form sheets parallel to (-102) which are linked by C-H interactions.
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