2-(2,4-Di-chloro-phen-oxy)-N'-[2-(2,4-di-chloro-phen-oxy)acet-yl]acetohydrazide

The complete mol-ecule of the title compound, C(16)H(12)Cl(4)N(2)O(4), is generated by a crystallographic centre of symmetry. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into [010] chains featuring R (2) (2)(10) loops. The chains are cross-linked by short Cl⋯N contacts [3.224 (2) Å].