5-[Phen­yl(pyridin-4-yl)amino]­penta-2,4-diyn-1-ol

In the title di­acetyl­ene derivative, C16H12N2O, the amino plane makes dihedral angles of 3.90 (4) and 60.53 (4)°, respectively, with the pyridyl and phenyl rings, indicating that an electron-deficient pyridyl ring makes better conjugation with a lone pair of the amino nitro­gen atom. In the crystal, mol­ecules form inversion dimers via pairs of hydrogen bonds between the hy­droxy and pyridyl groups, with an O⋯N distance of 2.7765 (16) A. The dimers stack along the a axis, but the title compound shows little solid-state polymerization reactivity.