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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O4—H1O4⋯O5i	0.89 (4)	1.73 (4)	2.612 (2)	171 (3)
O6—H1O6⋯O3ii	0.91 (4)	1.75 (4)	2.652 (2)	171 (4)
N2—H1N1⋯O2iii	1.06 (4)	2.29 (4)	3.309 (3)	161 (3)
N2—H2N2⋯O2iv	0.90 (3)	2.60 (3)	3.351 (3)	142 (2)
C2—H2A⋯O5v	0.95	2.58	3.288 (3)	131
C4—H4A⋯O6iv	0.95	2.55	3.339 (3)	141
C10—H10A⋯O1iii	0.95	2.57	3.460 (3)	156

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