Acta Cryst. (2013). E69, o259 [ doi:10.1107/S1600536813000780 ]
Abstract: The title compound, C10H10O4, crystallizes with the well-known carboxylic acid dimer-forming R22(8) hydrogen-bond motif. Chains approximately parallel to (-1-12) are then built through C(methylene,phenyl)-HO(carbonyl) interactions [C(6) and C(8) motifs] with one (methyl)C-H interaction providing interplanar binding. The weakness of the latter interaction is consistent with the difficulty experienced in obtaining suitable single crystals.
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