| C9H10NO4+·Cl−·2H2O | F(000) = 560 |
| Mr = 267.66 | Dx = 1.458 Mg m−3 |
| Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: -C 2yc | Cell parameters from 1418 reflections |
| a = 8.2301 (10) Å | θ = 3.3–27.1° |
| b = 10.7825 (10) Å | µ = 0.33 mm−1 |
| c = 13.882 (2) Å | T = 293 K |
| β = 98.11 (3)° | Prism, colourless |
| V = 1219.5 (3) Å3 | 0.50 × 0.50 × 0.50 mm |
| Z = 4 |