| C18H16O4 | Z = 2 |
| Mr = 296.31 | F(000) = 312 |
| Triclinic, P1 | Dx = 1.338 Mg m−3 |
| Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
| a = 4.8199 (3) Å | Cell parameters from 1141 reflections |
| b = 11.7014 (8) Å | θ = 4.0–24.3° |
| c = 13.6176 (10) Å | µ = 0.09 mm−1 |
| α = 77.329 (6)° | T = 295 K |
| β = 88.582 (6)° | Plate, yellow |
| γ = 79.039 (6)° | 0.4 × 0.2 × 0.1 mm |
| V = 735.54 (9) Å3 |