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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯O3i	0.84	1.95	2.739 (3)	155
N1—H1N⋯O4ii	0.83 (3)	1.93 (3)	2.700 (4)	153 (3)
N1—H2N⋯O1iii	0.82 (3)	2.27 (3)	2.999 (3)	149 (3)
O5—H1S⋯O5iv	0.91	1.65	2.502 (6)	155
O6—H2S⋯O6i	1.05	1.60	2.493 (5)	139

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