Date Published: July 01, 2012
Publisher: International Union of Crystallography
Author(s): Chuan-Hui Li, Wen-Shi Wu, Yu-Min Huang.
The molecule of the title compound, C10H12N2O4, is located around an inversion center. The carboxylate groups are twisted slightly with respect to the pyrazine ring, making a dihedral angle of 2.76 (19)°. In the crystal, molecules are stacked along the c axis via weak C—H⋯O hydrogen bonds.
For the structures of related compounds, see: Zhang et al. (2010 ▶); Cockriel et al. (2008 ▶).