(E)-4-{[(Pyridin-4-yl-methyl-idene)amino]-meth-yl}benzoic acid.

The title mol-ecule, C(14)H(12)N(2)O(2), exhibits a V-shaped conformation with a dihedral angle of 59.69 (3)° between the benzene and pyridine rings. In the crystal, O-H⋯N hydrogen bonds link the mol-ecules into zigzag chains along [010].