Showing structure for [(5as,10br)-5a,10b-dimethyl-2-[(1s,6r,7s)-1,6,7,11,11-pentamethyl-2-oxatricyclo[8.4.0.0³,⁷]tetradecan-6-yl]-9-(sulfooxy)-1h,2h,3h,3ah,4h,5h,10h,10ah-cyclopenta[a]fluoren-6-yl]oxidanesulfonic acid