Morpholinium styphnate

In the title mol-ecular salt (systematic name: morpholinium 3-hy-droxy-2,4,6-trinitro-phenolate), C(4)H(10)NO(+)·C(6)H(2)N(3)O(8) (-), two of the nitro groups of the anion are close to parallel with the plane of the benzene ring [dihedral angles = 3.46 (9) and 11.60 (10)°] and one is almost perpendicular [dihedral angle = 82.23 (8)°]. An intra-molecular O-H⋯O hydrogen bond occurs in the anion. The morpholinium cation has a slightly distorted chair conformation. In the crystal, the components are linked by simple N-H⋯O and trifurcated N-H⋯(O,O,O) hydrogen bonds.