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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N3—H3A⋯O1	0.86	1.96	2.795 (3)	162
N4—H4A⋯N1i	0.86	2.35	3.101 (3)	146
N4—H4B⋯S1ii	0.86	2.59	3.364 (2)	150
C8—H8A⋯O1	0.93	2.54	3.293 (3)	138

Symmetry codes: (i) ; (ii) .