7-Di­ethyl­amino-3-{(E)-4-[(E)-2-(pyridin-4-yl)ethen­yl]styr­yl}-2H-chromen-2-one

In the title coumarin derivative, C₂₈H₂₆N₂O₂, the coumarin unit is approximately planar, with a maximum deviation of 0.048 (3) Å. The central benzene ring is oriented at dihedral angles of 30.15 (14) and 10.51 (11)°, respectively, to the pyridine ring and coumarin ring system. In the crystal, weak C—H...O and C—H...N hydrogen bonds and weak C—H...π inter­actions link the mol­ecules into a three-dimensional supra­molecular architecture.