Acta Cryst. (2012). E68, o3470
[ doi:10.1107/S1600536812047897 ]
Abstract: In the title compound, C12H12O7, the dihedral angles between the benzene ring and the mean planes of the 3-carboxymethoxy, 1-carboxymethoxy and acetyl substituents are 8.67 (7), 7.81 (6) and 10.3 (18)°, respectively. In the crystal, molecules are linked by typical carboxylic acid O-HO hydrogen bonds, forming a zigzag chain. C-HO interactions also occur.
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