Showing structure for (1r,3ar,5as,6s,7s,9as,11ar)-1-[(2r)-5,6-dimethylhept-5-en-2-yl]-3a,6,9a,11a-tetramethyl-1h,2h,3h,4h,5h,5ah,6h,7h,8h,9h,10h,11h-cyclopenta[a]phenanthren-7-yl acetate