| C20H21NO4·0.5C4H4O4 | F(000) = 843.079 |
| Mr = 397.43 | Dx = 1.329 Mg m−3 |
| Monoclinic, P21/n | Cu Kα radiation, λ = 1.54184 Å |
| a = 9.05718 (12) Å | Cell parameters from 6957 reflections |
| b = 6.71363 (11) Å | θ = 2.7–67.9° |
| c = 32.8419 (4) Å | µ = 0.80 mm−1 |
| β = 95.9308 (12)° | T = 100 K |
| V = 1986.31 (5) Å3 | Block, clear light colourless |
| Z = 4 | 0.22 × 0.11 × 0.11 mm |
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