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

Cg2 is the centroid of the C4–C9 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C8—H8⋯O4i	0.93	2.32	3.114 (4)	144
C15—H15⋯O2ii	0.93	2.65	3.310 (4)	128
C6—H6⋯O4	0.93	2.41	2.813 (4)	106
C10—O4⋯Cg2iii	1.18 (1)	3.76 (1)	3.560 (3)	71 (1)

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