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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O4—H4B⋯O1ii	0.93 (5)	1.96 (5)	2.859 (5)	162 (4)
O4—H4A⋯O3iii	0.78 (3)	2.36 (3)	3.114 (4)	164 (3)
O4—H4A⋯O1iii	0.78 (3)	2.40 (3)	3.042 (4)	140 (3)

Symmetry codes: (ii) ; (iii) .