| Crystal data | 
| Chemical formula | C10H10Br2O5 | 
| M
r | 370.00 | 
| Crystal system, space group | Monoclinic, P21/n | 
| Temperature (K) | 100 | 
| a, b, c (Å) | 11.4047 (9), 7.1107 (3), 16.8997 (13) | 
| β (°) | 107.009 (8) | 
| V (Å3) | 1310.54 (16) | 
| Z | 4 | 
| Radiation type | Mo Kα | 
| μ (mm−1) | 6.19 | 
| Crystal size (mm) | 0.08 × 0.06 × 0.03 | 
|  | 
| Data collection | 
| Diffractometer | SuperNova, Dualflex, AtlasS2 | 
| Absorption correction | Gaussian (CrysAlis PRO; Rigaku OD, 2022 ▸) | 
| T
min, T
max | 0.749, 0.855 | 
| No. of measured, independent and observed [I ≥ 2u(I)] reflections | 18764, 3245, 2254 | 
| R
int | 0.084 | 
| (sin θ/λ)max (Å−1) | 0.667 | 
|  | 
| Refinement | 
| R[F
2 > 2σ(F
2)], wR(F
2), S | 0.053, 0.123, 1.06 | 
| No. of reflections | 3245 | 
| No. of parameters | 218 | 
| No. of restraints | 63 | 
| H-atom treatment | Only H-atom displacement parameters refined | 
| Δρmax, Δρmin (e Å−3) | 1.25, −1.48 |