The molecule is a guaiane sesquiterpenoid isolated from Elephantopus mollis and has been shown to exhibit cytotoxic activity. It has a role as a metabolite and an antineoplastic agent. It is a guaiane sesquiterpenoid, a gamma-lactone, an enoate ester, an organic heterotricyclic compound and a tertiary alcohol. It derives from a tiglic acid.
[(3aR,4S,9R,9aR,9bS)-9a-hydroxy-6,9-dimethyl-3-methylidene-2,7-dioxo-3a,4,5,8,9,9b-hexahydroazuleno[4,5-b]furan-4-yl] (E)-2-methylbut-2-enoate