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The asymmetric unit of the title compound, C 12 H 12 F 2 N 2 O 3 , contains two mol­ecules, both of which exist in an  E  conformation with respect to their C=N bonds [1.321 (6) and 1.310 (6) Å]. The mol­ecular conformations are supported by intra­molecular N—H⋯O hydrogen bonds, which generate  S (6) rings. In the crystal, mol­ecules are linked by C—H⋯O and C—H⋯F hydrogen bonds into layers lying parallel to (001). The crystal studied was an inversion twin with a 0.58 (1):0.42 (1) domain ratio.

Ethyl 2-[(2,4-difluorophenyl)hydrazinylidene]-3-oxobutanoate