Showing structure for (1s,3ar,5ar,5br,7as,11as,11bs,13as,13bs)-1-isopropyl-3a,5a,5b,8,8,11a-hexamethyl-1h,2h,3h,4h,5h,6h,7h,7ah,11bh,12h,13h,13ah,13bh-cyclopenta[a]chrysen-11-one