The mol-ecule of the title compound, C(10)H(12)N(2)O(4), is located around an inversion center. The carboxyl-ate groups are twisted slightly with respect to the pyrazine ring, making a dihedral angle of 2.76 (19)°. In the crystal, mol-ecules are stacked along the c axis via weak C-H⋯O hydrogen bonds.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3394027 | PMC |
| http://dx.doi.org/10.1107/S1600536812028164 | DOI Listing |
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