title: Bis(4-amino-pyridinium) bis(hydrogen oxalate) monohydrate.
abstract: In the title compound, 2C(5)H(7)N(2) (+)·2C(2)HO(4) (-)·H(2)O, the asymmetric unit consists of an amino-pyridinium cation, an oxalic actetate anion and a half-molecule of water, which lies on a two-fold rotation axis. The crystal packing is consolidated by inter-molecular O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds. The mol-ecules are linked into an infinite one dimensional chain along [010].
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
authors.forename: Jain
authors.initials: J
authors.lastname: John
authors.forename: Samuel Robinson
authors.initials: SR
authors.lastname: Jebas
authors.forename: T
authors.initials: T
authors.lastname: Balasubramanian