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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O3—H3⋯O6i	0.84	1.92	2.725 (3)	160
O4—H4A⋯O2ii	0.857 (10)	1.823 (15)	2.616 (3)	153 (3)
O4—H4A⋯O1ii	0.857 (10)	2.45 (3)	3.011 (3)	123 (3)
O4—H4B⋯O6iii	0.859 (10)	1.925 (10)	2.783 (3)	176 (3)
O5—H5A⋯O3iv	0.853 (10)	2.000 (15)	2.828 (3)	164 (3)
O5—H5B⋯O4iii	0.855 (10)	1.956 (15)	2.787 (3)	164 (3)
O6—H6A⋯O2v	0.836 (10)	2.11 (3)	2.781 (3)	137 (3)
O6—H6B⋯O1	0.843 (10)	1.908 (15)	2.721 (3)	162 (3)

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