title: 2-Amino-pyrimidinium hydrogen oxalate monohydrate.
abstract: In the title hydrated salt, C(4)H(6)N(3) (+)·C(2)HO(4) (-)·H(2)O, inter-molecular N-H⋯O and O-H⋯O hydrogen bonding helps to stabilize the crystal structure.
authors.affiliation: Department of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad 917791436, Iran.
authors.forename: Hossein
authors.initials: H
authors.lastname: Eshtiagh-Hosseini
authors.forename: Zakieh
authors.initials: Z
authors.lastname: Yousefi
authors.forename: Masoud
authors.initials: M
authors.lastname: Mirzaei