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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H102⋯O4i	0.97 (2)	1.77 (2)	2.737 (2)	179 (1)
O3—H103⋯O4	0.86 (2)	1.71 (2)	2.501 (2)	151 (2)

Symmetry code: (i) .