Synonyms: 9,19-Cyclo-3,4-secolanosta-4(28),24-diene-3,26-dioicacid, 22-hydroxy-, d-lactone, (22R)-;1H-Cyclopenta[a]cyclopropa[e]naphthalene-3a(4H)-propanoic acid,7-[1-(3,6-dihydro-5-methyl-6-oxo-2H-pyran-2-yl)ethyl]decahydro-6a,9a-dimethyl-3-(1-methylethenyl)-,[3S-[3a,3ab,4aR*,6aa,7a[R*(S*)],9ab,9ba]]-; Kadsulactone acid