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