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Acta Cryst. (2004). E60, o151-o152 [ doi:10.1107/S160053680302926X ]
Abstract: The molecules of the title compound, C12H14O4, form dimeric pairs about inversion centers through hydrogen-bonding interactions between carboxylic acid groups. These hydrogen-bonding interactions can be described in terms of the graph-set notation R22(8).
Online 10 January 2004
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