Showing structure for (1r,3as,5ar,9as,11ar)-6,6,9a,11a-tetramethyl-1-[(2r)-6-methylhept-5-en-2-yl]-7-oxo-1h,2h,3h,4h,5h,5ah,8h,9h,10h,11h-cyclopenta[a]phenanthrene-3a-carboxylic acid