title: 2-Amino-pyridinium 4-methyl-benzoate dihydrate.
abstract: The crystal structure of the title salt, C(5)H(7)N(2) (+)·C(8)H(7)O(2) (-)·2H(2)O, contains a three-dimensional supra-molecular framework constructed through N-H⋯O and O-H⋯O hydrogen bonds.
authors.affiliation: Basic Experiment Teaching Center, Henan University, Kaifeng 475004, People's Republic of China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Liu
authors.forename: Jie
authors.initials: J
authors.lastname: Li