Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| O4—H4A⋯O1i | 0.91 | 1.84 | 2.745 (3) | 172 |
| O4—H4B⋯O5 | 0.89 | 1.97 | 2.839 (5) | 164 |
| C19—H19⋯O4ii | 0.93 | 2.51 | 3.355 (5) | 152 |
| C21—H21⋯O5ii | 0.93 | 2.53 | 3.437 (7) | 167 |
Symmetry codes: (i) 
; (ii) 
.
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