1-Methyl­piperazine-1,4-dium bis­(hydrogen oxalate)

In the crystal structure of the title compound, C(5)H(14)N(2) (2+)·2HC(2)O(4) (−), the two crystallographically independent hydrogen oxalate anions are linked by strong inter­molecular O—H⋯O hydrogen bonds, forming two independent corrugated chains parallel to the b axis. These chains are further connected by N—H⋯O and C—H⋯O hydrogen bonds originating from the organic cations, forming a three-dimensional network. The diprotonated piperazine ring adopts a chair conformation, with the methyl group occupying an equatorial position.