3-(Benzotriazol-2-yl)-1-(biphenyl-4-yl)­propan-1-one

In the mol­ecule of the title compound, C21H17N3O, the nearly planar benzotriazole ring system is oriented with respect to the planar rings C (benzoyl) and D (terminal phen­yl) at dihedral angles of 58.52 (1) and 77.16 (1)°, respectively. In the crystal structure, inter­molecular C—H⋯N hydrogen bonds link the mol­ecules into centrosymmetric dimers.