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organic compounds
The crystal structure of the title compound, C10H6N2O2, consists of relatively isolated molecules, the shortest intermolecular contacts [C—HO; 2.51 (2) ; C—HN 2.50 (1) and 2.60 (2) Å] indicate the presence of weak hydrogen bonding. As indicated by the planarity of the molecule and the pattern of bond lengths, the π-electron delocalization extends over the whole molecule.