2,6-Dimethyl-4-(phenyldiazenyl)phenol.

The crystal structure of the title compound, C14H14N2O, determined at 293 K, shows that the molecule is approximately planar in the solid state and that the aromatic rings have a trans configuration with respect to the azo double bond, as found for other diazene derivatives. The packing can be described as a polymeric arrangement of molecules linked through O-H...N and C-H...O hydrogen bonds and close contacts. These intermolecular interactions result in the formation of infinite chains parallel to the b axis.