2-Amino-4,6-dimethyl­pyrimidinium dihydrogenphosphate

In the crystal structure of the title compound, C6H10N3+·H2PO4−, the cations and anions are linked by inter­molecular O—H⋯O and N—H⋯O hydrogen bonds, forming a two-dimensional network. Additional stabilization is provided by weak inter­molecular C—H⋯O inter­actions. N—H⋯N inter­actions are also present.