2-{(E)-[(2-Hy-droxy-1-phenyl-eth-yl)imino]-meth-yl}-4-[(E)-(4-methyl-phen-yl)diazen-yl]phenol.

In the title compound, C(22)H(21)N(3)O(2), an intra-molecular O-H⋯N hydrogen bond is observed between the phenol and methanimine groups of the mol-ecule. The 2-phenyl-ethan-1-ol part is disordered over two orientations [occupancies 0.566†(17) and 0.434†(17)]. In the crystal, disordered inter-molecular O-H⋯O hydrogen bonds between adjacent mol-ecules form chains parallel to the b axis.