title: 2-Ammonio-3-(4-nitro-phen-yl)propanoate monohydrate.
abstract: The title compound, C(9)H(10)N(2)O(4)·H(2)O, exists as a zwitterion with a deprotonated carboxyl group and a protonated amine group. The crystal packing is stabilized by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds, building sheets parallel to the (001) plane.
authors.affiliation: Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: Wei
authors.initials: W
authors.lastname: Dai
authors.forename: Da-Wei
authors.initials: DW
authors.lastname: Fu