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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C1—H1A⋯O2	0.96	2.08	2.768 (6)	128
C1—H1C⋯O2i	0.96	2.38	3.229 (6)	147
C4—H4A⋯O1ii	0.93	2.47	3.390 (6)	171
C9—H9B⋯O4	0.96	2.35	2.831 (5)	110
C9—H9C⋯O3iii	0.96	2.50	3.400 (4)	156

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