Table 1. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1A⋯O4i	0.86 (3)	1.87 (3)	2.7204 (19)	169 (2)
O4—H4A⋯O2ii	0.75 (3)	2.15 (3)	2.8970 (18)	170 (3)
C9—H9A⋯O2iii	0.97	2.51	3.322 (2)	141

Symmetry codes: (i) ; (ii) ; (iii) .