3,5-Dimethyl­pyrazolium 3,5-dinitro­salicylate

In the title mol­ecular salt, C₅H₉N₂⁺·C₇H₃N₂O₇⁻, the roughly planar anion (r.m.s. deviation = 0.120 Å) has been deprotonated at the phenol group. An intra­molecular O—H...O hydrogen bond in the anion generates an S(6) ring. In the crystal, the components are linked by cation-to-anion N—H...O and N—H...(O,O) hydrogen bonds, generating [010] double chains. Weak C—H...O inter­actions consolidate the packing.