The molecule is a germacrane sesquiterpenoid found Tanacetum vulgare that is tatridin A in which the double bond at position 9-10 has migrated to position 10-14 and in which the hydroxy group at position 1 has epimerised from alpha- to beta-. It has a role as a metabolite. It is a gamma-lactone, a germacrane sesquiterpenoid, a diol and an organic heterobicyclic compound.
(3aS,4R,5E,9R,11aS)-4,9-dihydroxy-6-methyl-3,10-dimethylidene-4,7,8,9,11,11a-hexahydro-3aH-cyclodeca[b]furan-2-one