title: 4,4'-azinodibenzoic Acid.
abstract: The title compound, C(14)H(10)N(2)O(4), shows crystallographic inversion symmetry and has one half-mol-ecule in the asymmetric unit. In the crystal, mol-ecules are linked into chains running along the cell diagonal by O-H⋯O hydrogen-bonding inter-actions.
authors.forename: Qun-Di
authors.initials: QD
authors.lastname: Yu
authors.forename: Yun-Yu
authors.initials: YY
authors.lastname: Liu