title: Piperazine-1,4-diium 2-(carb-oxy-meth-yl)-2-hy-droxy-butane-dioate monohydrate.
abstract: In the crystal structure of the title compound, C(4)H(12)N(2) (2+)·C(6)H(6)O(7) (2-)·H(2)O, the cations, anions and water mol-ecules are linked by inter-molecular N-H⋯O, O-H⋯O and weak C-H⋯O hydrogen bonds into a three-dimensional network. An intra-molecular O-H⋯O inter-action occurs in the dianion.
authors: Renmin Hospital of Wuhan University, Wuhan 430060, People's Republic of China.
authors: Ling-Li
authors: LL
authors: Liu
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