trans-Diaquabis(ethyl­enediamine)zinc(II) 2-(sulfanilamido)­pyrimidine monohydrate

In the title compound, [Zn(C₄H₈N₄)(H₂O)₂](C₁₀H₉N₄O₂S)₂·H₂O, the Zn^II ion is octa­hedrally surrounded by two water O atoms [Zn—O = 2.68 (2) and 2.49 (2) Å] and the four N atoms of two ethylenediamine mol­ecules. Inter­molecular O—H...N, N—H...O and N—H...N hydrogen-bond inter­actions result in the formation of an intricate three-dimensional network.