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In the title compound, C 16 H 12 O 4 , the chromene ring system is almost planar [maximum deviation = 0.026 (1) Å] and makes dihedral angles of 1.24 (9) and 26.5 (2)° with the fused benzene ring and the plane of the ethyl carboxyl­ate group, respectively.

Ethyl 3-oxo-3H-benzo[f]chromene-2-carboxylate