The asymmetric unit of the title compound, C(9)H(8)N(2)O(2), contains two mol-ecules. In the crystal structure, both mol-ecules form inversion dimers via pairs of O-H⋯O hydrogen bonds, and a C-H⋯O inter-ation is also seen.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2959892 | PMC |
http://dx.doi.org/10.1107/S160053680803554X | DOI Listing |
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