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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯O3i	0.82	1.96	2.775 (2)	172
O2—H2⋯O1ii	0.82	2.33	2.888 (2)	125
O4—H4⋯O2iii	0.82	1.85	2.639 (2)	161
C12—H12B⋯O5iv	0.96	2.42	3.268 (4)	148

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