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

Cg1 is the centroid of the C1–C6 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C12—H12B⋯Cg1i	0.97	2.70	3.632 (2)	162
C9—H9A⋯O3ii	0.97	2.64	3.402 (2)	135
C11—H11B⋯O3iii	0.97	2.61	3.530 (2)	158

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