Crystal structure of 4-amino­pyridinium 5-(5-chloro-2,4-dinitrophenyl)-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-olate hemihydrate

In the title mol­ecular salt, the two rings of the barbiturate anion are inclined to one another by 43.40 (3)°. In the crystal, the cations and anions are linked via N—H...O hydrogen bonds, forming zigzag chains along [10], which in turn are linked by O—H...O and C—H...O hydrogen bonds, forming slabs lying parallel to (10).