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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O3B—H1O3⋯O3Ai	0.82	1.65	2.463 (2)	173
N3—H1N3⋯O4Bii	1.05 (3)	2.08 (3)	3.008 (3)	146 (2)
N3—H2N3⋯O2Biii	0.92 (3)	2.39 (3)	3.129 (2)	138 (2)
N2—H1N2⋯O3Biv	1.00 (2)	2.00 (2)	2.929 (2)	154 (2)
N4—H1N4⋯O4Ai	0.90 (2)	2.18 (2)	3.068 (2)	169 (2)
N4—H2N4⋯O3Av	0.89 (2)	2.35 (2)	3.152 (2)	150 (2)
C1B—H1B⋯O4Bii	0.94 (2)	2.52 (2)	3.231 (2)	133 (2)
C4B—H4B⋯O1Bvi	0.97 (2)	2.54 (2)	3.250 (2)	130 (2)
C12—H12⋯O4Bvii	0.89 (2)	2.50 (2)	3.376 (2)	165 (2)

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