(E)-2-{2-tert-Butyl-6-[2-(4-hy-droxy-phen-yl)ethen-yl]-1-propyl-1,4-dihydro-pyridin-4-yl-idene}indane-1,3-dione.

The title compound, C(29)H(29)NO(3), the nearly planar nine-membered indanedione ring [maximum deviation = 0.027 (2) Å] is located approximately parallel to its carrier pyridine ring [maximum deviation = 0.021 (2) Å] with a dihedral angle of 1.8 (1)° between the planes. However, because of steric hindrance, the benzene ring [maximum deviation = 0.006 (2) Å] is not parallel to the pyridine ring [dihedral angle = 37.29 (8)°]. The mol-ecules display numerous inter-molecular π-π inter-actions between the five- and six-membered rings, the shortest centroid-centroid distance being 3.796 (2) Å. There are inter- and intra-molecular O-H⋯O and C-H⋯O hydrogen bonds.