| C12H15N5O3·H2O | F(000) = 1248 |
| Mr = 295.31 | Dx = 1.421 Mg m−3 |
| Orthorhombic, C2221 | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: C 2c 2 | Cell parameters from 1377 reflections |
| a = 6.9986 (10) Å | θ = 3.4–25.0° |
| b = 11.6229 (10) Å | µ = 0.11 mm−1 |
| c = 33.932 (3) Å | T = 273 K |
| V = 2760.1 (5) Å3 | Block, colorless |
| Z = 8 | 0.12 × 0.10 × 0.08 mm |