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