title: 3,5-Bis(benz-yloxy)benzoic acid.
abstract: In the title compound, C(21)H(18)O(4), the outer benzyl rings are disordered over two resolved positions in a 0.50 ratio. The O-CH(2) groups form dihedral angles of 4.1 (2) and 10.9 (4)° with the central benzene ring, adopting a syn-anti conformation with respect to this ring. In the crystal, the mol-ecules are linked by O-H⋯O hydrogen bonds and weak C-H⋯O inter-actions, forming chains along [010].
authors.affiliation: Departamento de Química, Facultad de Ciencias, Universidad del Valle, Apartado 25360, Santiago de Cali,  Colombia.
authors.forename: Rodolfo
authors.initials: R
authors.lastname: Moreno-Fuquen
authors.forename: Carlos
authors.initials: C
authors.lastname: Grande
authors.forename: Rigoberto C
authors.initials: RC
authors.lastname: Advincula
authors.forename: Juan C
authors.initials: JC
authors.lastname: Tenorio
authors.forename: Javier
authors.initials: J
authors.lastname: Ellena