In the title compound, CHClNO, the heterocyclic ring adopts an envelope conformation, folded across the N⋯N line, with the 2,5-di-meth-oxy-phenyl unit occupying a quasi-axial site. There are two N-H⋯O hydrogen bonds in the structure: one hydrogen bond links mol-ecules related by a 4 screw axis to form a (6) chain, and the other links inversion-related pairs of mol-ecules to form an (8) ring. The ring motif links all of the chains into a continuous three-dimensional framework structure. Comparisons are made with the structures of some related compounds.
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