title: 2-Carboxy-pyridinium hydrogen chloranilate.
abstract: In the crystal structure of the title salt, C(6)H(6)NO(2) (+)·C(6)HCl(2)O(4) (-), the pyridine ring and the mean plane of the hydrogen chloranilate anion form a dihedral angle of 77.40 (8)°. The ionic components are held together by N-H⋯O and O-H⋯O hydrogen bonds, forming a supra-molecular ladder. C-H⋯O inter-actions are also present.
authors.affiliation: Department of Chemistry, Faculty of Science, Okayama University, Okayama 700-8530, Japan.
authors.forename: Kazuma
authors.initials: K
authors.lastname: Gotoh
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Nagoshi
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Ishida