3,6-Dimethyl-1-phenyl-1<i>H</i>,4<i>H</i>-pyrano[2,3-<i>c</i>]pyrazol-4-one

The title compound, C(14)H(12)N(2)O(2), is almost planar with an r.m.s. deviation for all non-H atoms of 0.038 Å. The observed planarity is rationalized in terms of a close intra-molecular C-H⋯O inter-action. Supra-molecular layers, two mol-ecules thick and with a step topology, are formed in the crystal packing via C-H⋯O contacts involving the carbonyl O atom, which accepts two such bonds, and π-π inter-actions between the components of the fused ring system and the phenyl ring of inversion-related mol-ecules [centroid-centroid distances = 3.6819 (13) and 3.6759 (12) Å].