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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O4—H4⋯O3i	0.82	1.86	2.676 (2)	171
C3—H3⋯O1ii	0.93	2.47	3.391 (3)	169
C16—H16⋯O2iii	0.93	2.46	3.387 (2)	172
C13—H13⋯O3iv	0.93	2.51	3.307 (3)	144

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