The molecule is a germacranolide isolated from the aerial parts of Carpesium divaricatum. It exhibits cytotoxicity against the human tumor cells, A-549 (nonsmall cell lung), SK-OV-3 (ovary), SK-MEL-2 (skin), XF-498 (central nervous system) and HCT-15 (colon). It has a role as a metabolite and an antineoplastic agent. It is a cyclic ketone, a diol, a secondary alcohol, a tertiary alcohol, an enoate ester and a germacranolide.
[(3aR,4S,6S,8S,10S,11S,11aR)-8,10-dihydroxy-6,10-dimethyl-3-methylidene-4-(2-methylpropanoyloxy)-2,5-dioxo-3a,4,6,7,8,9,11,11a-octahydrocyclodeca[b]furan-11-yl] (Z)-2-methylbut-2-enoate