Table 2. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C5—H5⋯O5iii	0.93	2.49	3.349 (3)	154
C9—H9⋯O3ii	0.93	2.39	3.037 (3)	126
C12—H12⋯O3iv	0.93	2.56	3.490 (3)	177
C15—H15⋯O3iv	0.93	2.56	3.493 (3)	176
C18—H18⋯O2i	0.93	2.43	3.235 (3)	145

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