4-Ethynyl-N,N-di­phenyl­aniline

The asymmetric unit of the title compound, C₂₀H₁₅N, comprises two crystallographically independent mol­ecules (A and B). In each mol­ecule, the N atom adopts an approximately trigonal planar geometry, lying 0.009 (1) or 0.003 (1) Å from the plane defined by the C atoms of the aromatic substituents to which it is attached. In the crystal, mol­ecules are linked via C—H...π inter­actions, forming a three-dimensional structure.