Showing structure for (1s,3ar,5as,7ar,9s,11ar,11br,13as,13br)-1-isopropyl-3a,5a,8,8,11a,13a-hexamethyl-1h,2h,3h,4h,5h,7h,7ah,9h,10h,11h,11bh,12h,13h,13bh-cyclopenta[a]chrysen-9-yl acetate