Crystal structure and Hirshfeld surface analysis of (Z)-6-[(2-hy­droxy-4-methyl­anilino)­methyl­idene]-4-methyl­cyclo­hexa-2,4-dien-1-one

The title compound, C(15)H(15)NO(2), is a Schiff base that exists in the keto–enamine tautomeric form and adopts a Z configuration. The mol­ecule is almost planar, with the two phenyl rings twisted relative to each other by 9.60 (18)°. There is an intra­molecular N—H⋯O hydrogen bond present forming an S(6) ring motif. In the crystal, pairs of O—H⋯O hydrogen bonds link adjacent mol­ecules into inversion dimers with an R (2) (2)(18) ring motif. The dimers are linked by very weak π–π inter­actions, forming layers parallel to ([Image: see text]01). Hirshfeld surface analysis, two-dimensional fingerprint plots and the mol­ecular electrostatic potential surfaces were used to analyse the inter­molecular inter­actions, indicating that the most important contributions for the crystal packing are from H⋯H (55.2%), C⋯H/H⋯C (22.3%) and O⋯H/H⋯O (13.6%) inter­actions.