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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2A⋯O4	0.85	1.74	2.564 (7)	163
O3—H3B⋯O1	0.85	1.89	2.723 (6)	165

Symmetry codes: (i) ; (ii) .