The mol-ecule of the title compound, C(4)H(2)N(2)O(4), is located around an inversion center and the four O atoms are in the 2,3,5,6-positions of the piperazine ring. In the crystal, bifurcated N-H⋯O hydrogen bonds link the mol-ecules into a corrugated layer parallel to (101).
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3011555 | PMC |
| http://dx.doi.org/10.1107/S1600536810048075 | DOI Listing |
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