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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N3i	0.82	1.90	2.716 (4)	173
N1—H3⋯O3	0.86	2.02	2.586 (4)	123
N2—H10⋯O2ii	0.86	2.05	2.889 (4)	163
O5—H11⋯O9iii	0.82	1.69	2.510 (5)	174
N5—H13⋯O7	0.86	2.04	2.584 (5)	121
N6—H20⋯O6iv	0.86	2.16	2.937 (5)	150
O9—H21⋯N7	0.83 (4)	2.11 (3)	2.902 (6)	160 (7)
O9—H22⋯O10	0.84 (4)	1.86 (3)	2.662 (7)	159 (7)
O10—H23⋯O7v	0.86 (4)	2.04 (4)	2.869 (6)	163 (6)
O10—H24⋯O3	0.86 (4)	2.41 (8)	2.856 (6)	113 (5)

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