The asymmetric unit of the title compound, C(13)H(8)Cl(2)N(4)O(4), contains two independent but similar and almost planar mol-ecules. An intra-molecular N-H⋯O hydrogen bond is observed in each mol-ecule.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2962065 | PMC |
http://dx.doi.org/10.1107/S1600536808020266 | DOI Listing |
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