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organic compounds
In the title compound, C12H18O6.CH3CN, both components have crystallographically imposed C3 symmetry. The hydrogen bonds between the three carboxylic acid groups of (1α,3α,5α)-1,3,5-trimethyl-1,3,5-cyclohexanetricarboxylic acid (Kemp's triacid) and three other triacid moieties make a three-dimensional hydrogen-bonding network producing large intermolecular cavities.