2,2′-(Piperazine-1,4-di­yl)diethanaminium bis­(2-hy­droxy­benzoate)

The asymmetric unit of the title salt, C(8)H(22)N(4) (2+)·2C(7)H(5)O(3) (−), comprises half a 2,2′-(piperazine-1,4-di­yl)diethan­aminium dication plus a 2-hy­droxy­benzoate anion. In the crystal, the anions and cations are linked by N—H⋯O and O—H⋯O hydrogen bonds to form infinite two-dimensional networks parallel with the a unit-cell face. The conformation adopted by the cation in the crystal is very similar to that adopted by the same cation in the structures of the nitrate and tetra­hydrogen penta­borate salts.