Showing structure for 3a,6,6,9a,11a-pentamethyl-1-(6-methylhept-5-en-2-yl)-1h,2h,3h,4h,5h,5ah,7h,8h,9h,10h,11h-cyclopenta[a]phenanthren-7-yl (2e)-deca-2,4-dienoate