Table 2. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
OH8—H1⋯O6vii	0.79 (4)	2.66 (3)	3.3180 (16)	142 (1)
OH9—H2⋯O3	0.78 (3)	1.89 (3)	2.6512 (13)	166 (3)

Symmetry code: (vii) .