(E)-1-{2-Hydroxy-5-[(4-methylphenyl)diazenyl]phenyl}ethanone

Abstract

The structure of the title compound, C15H14N2O2, an azo dye, displays a trans configuration with respect to the N=N bridge. The dihedral angle between the aromatic rings is 5.06 (8)°. The molecular conformation is stabilized by a strong intramolecular O—H...O hydrogen bond. In the crystal, intermolecular C—H...O hydrogen bonds occur.