Received 9 November 2012
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.
Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004; data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: GO2075 ).
This study was funded by Jiangxi Provincial Department of Education (GJJ08433) and the Doctoral Research Initiating Project of Jiujiang University.
Bruker (2004). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Sheldrick, G. M. (2003). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.
Zhang, C., Li, H., Liu, D. & Liu, M. (2007). Acta Cryst. E63, o4210.