Showing structure for 9-(acetyloxy)-5a,5b,8,8,11a-pentamethyl-1-(prop-1-en-2-yl)-1h,2h,3h,4h,5h,6h,7h,7ah,9h,10h,11h,11bh,12h,13bh-cyclopenta[a]chrysene-3a-carboxylic acid