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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C4—H4⋯O1i	0.95	2.54	3.3756 (18)	147
C7—H7⋯O2ii	0.95	2.60	3.466 (2)	152
C18—H18B⋯O3iii	0.98	2.59	3.471 (2)	149

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