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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O4—H4⋯O5	0.89 (3)	1.65 (3)	2.5231 (11)	166 (2)
N1—H1⋯O1i	0.85 (2)	2.03 (2)	2.8824 (11)	175.2 (19)
N3—H3⋯O2ii	0.94 (2)	1.87 (2)	2.8112 (11)	174.6 (18)
O5—H51⋯O2iii	0.81 (3)	2.00 (3)	2.7786 (12)	161 (3)
O5—H52⋯O3iv	0.82 (3)	1.98 (3)	2.7787 (12)	164 (2)
C5—H5⋯O4iii	0.879 (19)	2.740 (19)	3.5922 (13)	163.7 (15)

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