Acta Cryst. (2014). E70, o615
[ doi:10.1107/S1600536814008599 ]
Abstract: The title compound, C16H14O6, was recrystallized under solvothermal conditions. The molecules are located on inversion centres, with one complete molecule generated from the asymmetric unit by inversion. There are intramolecular O-HO hydrogen bonds involving the carboxylic acid group and the O atom of the adjacent methoxy group. In the crystal, molecules are linked via O-HO hydrogen bonds, forming chains propagating along . The chains are linked via C-HO hydrogen bonds, forming sheets parallel to (001).
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