title: N-(2-Aza-niumyleth-yl)carbamate monohydrate.
abstract: In the crystal structure of the title compound, C(3)H(8)N(2)O(2)·H(2)O, the organic mol-ecule exists as zwitterion with the carboxyl group deprotonated and the amino group protonated. In the crystal, the components are linked by O-H⋯O and N-H⋯O hydrogen bonds.
authors.forename: Bo
authors.initials: B
authors.lastname: Shao
authors.forename: Hai-Bin
authors.initials: HB
authors.lastname: Wang