Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C9—H9B⋯O4i | 0.98 | 2.53 | 3.450 (4) | 156 |
| C9—H9C⋯O9ii | 0.98 | 2.59 | 3.536 (4) | 161 |
| C8—H8A⋯O5iii | 0.98 | 2.44 | 3.352 (4) | 154 |
Symmetry codes: (i) 
; (ii) 
; (iii) 
.
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