Synonyms: (-)-Dehydrocostus lactone; Dehydrocostus lactone; Epiligulyl oxide; (3aS,6aR,9aR,9bS)-Decahydro-3,6,9-tris(methylene)-azuleno[4,5-b]furan-2(3H)-one; Dehydro-costus lactone (6CI,7CI); Dehydrocostuslactone; Guaia-4(15),10(14),11(13)-trien-12-oic acid, 6alpha-hydroxy-, gamma-lactone;…