title: 2-[(2-Carboxyphenyl)disulfanyl]benzoate (1,5-dimethyl-3-oxo-2-phenyl-2,3-di-hydro-1H-pyrazol-4-yl)ammonium.
abstract: In the title molecular salt, C(11)H(14)N(3)O(+)·C(14)H(9)O(4)S(2) (-), one of the carboxylic groups of the 2,2'-dithio-dibenzoic acid is deprotonated and the exocyclic amino N atom of the 4-amino-anti-pyrine is protonated. In the anion, the dihedral angle between the two benzene rings is 73.51 (5)° and in the cation the dihedral angle between the phenyl ring and the five-membered ring is 65.79 (9)°. In the crystal structure, inter-molecular N-H⋯O and O-H⋯O hydrogen bonds connect the anions and cations into chains along [010].
authors.affiliation: College of Chemistry and Life Science, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Tianjin Normal University, Tianjin 300387, People's Republic of China.
authors.forename: Jian-Zhong
authors.initials: JZ
authors.lastname: Huo