Showing structure for 2-{2,7-dihydroxy-3a,6,6,9b,11a-pentamethyl-10-oxo-1h,2h,3h,3bh,4h,7h,8h,9h,9ah,11h-cyclopenta[a]phenanthren-1-yl}-2,6,6-trimethyloxan-3-one