| C12H11FO4S | Z = 2 | 
| Mr = 270.27 | F(000) = 280 | 
| Triclinic, P1 | Dx = 1.442 Mg m−3 | 
| Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å | 
| a = 7.7799 (5) Å | Cell parameters from 3896 reflections | 
| b = 8.5609 (6) Å | θ = 2.7–27.5° | 
| c = 10.5592 (7) Å | µ = 0.28 mm−1 | 
| α = 73.834 (1)° | T = 273 K | 
| β = 80.178 (1)° | Block, colorless | 
| γ = 67.486 (1)° | 0.60 × 0.40 × 0.40 mm | 
| V = 622.36 (7) Å3 |