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In the title compound, C 14 H 11 N 3 O 3 , the chromene ring is almost planar, with a maximum deviation of 0.065 (2) Å from the mean plane for one of the C atoms. In the crystal, inversion dimers linked by pairs of N—H⋯O hydrogen bonds generate  R   2   2 (8) loops. The dimers are linked by C—H⋯N and C—H⋯O inter­actions into a three-dimensional network. An aromatic π–π stacking inter­action, with a centroid–centroid distance of 3.562 (10) Å, is also observed.

2-Cyano-N′-[(E)-1-(2-oxo-2H-chromen-3-yl)ethylidene]acetohydrazide