Showing structure for 3-[(3s,3as,5ar,6s,7s,9bs)-3a,6,9b-trimethyl-3-[(2s)-6-methylhept-5-en-2-yl]-7-(prop-1-en-2-yl)-1h,2h,3h,4h,5h,5ah,7h,8h-cyclopenta[a]naphthalen-6-yl]propanoic acid