21982-83-2 3a,4,5,6,6a,7,9a,9b-Octahydro-4,6-dihydroxy-6,9-dimethyl-3-methyleneazuleno(4,5-b)furan-2(3H)-one (3aR-(3aalpha,4alpha,6alpha,6aalpha,9aalpha,9bbeta))- Artenovin Azuleno(4,5-b)furan-2(3H)-one, 3a,4,5,6,6a,7,9a,9b-octahydro-4,6-dihydroxy-6,9-dimethyl-3-methylene-, (3aR-(3aalpha,4alpha,6alpha,6aalpha,9aalpha,9bbeta))- BRN 1287993 Cumambrin B Guaia-3,11(13)-dien-12-oic acid, 6-alpha,8,10-trihydroxy-, 12,6-lactone NSC 180031