(Z)-1-(2,5-Dichloro-3-thien-yl)ethanone semicarbazone.

The title mol-ecule, C(7)H(7)Cl(2)N(3)OS, is approximately planar [maximum deviation = 0.062 (1) Å]. Short inter-molecular distances between the centroids of the five-membered rings [3.5340 (8) Å] indicate the existence of π-π inter-actions. An inter-esting feature of the crystal structure is the presence of short intra-molecular Cl⋯N inter-actions [3.0015 (11) Å]. Mol-ecules are linked via pairs of inter-molecular N-H⋯O hydrogen bonds, generating R(2) (2)(8) ring motifs. Furthermore, N-H⋯O hydrogen bonds form R(2) (1)(7) ring motifs with C-H⋯O contacts, further consolidating the crystal structure. In the crystal, mol-ecules are linked by these inter-molecular inter-actions, forming chains along [001].