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organic compounds
In the title compound, C13H10N2O3, the two equivalent molecules of the asymmetric unit form dimers by means of an intermolecular N—HN hydrogen bond with a NH distance of 2.42 (2) Å. There are weak intramolecular and intermolecular interactions between the C—HN and C—HO atoms. There are no unusual intramolecular distances or angles. The furanic rings are rotated 81.1 (2)° relative to each other.