The molecule is a sesquiterpene lactone obtained by regioselective Bayer-Villiger oxidation of 1-deoxy-11-oxopentalenic acid. It has a role as a metabolite. It is a monocarboxylic acid, an organic heterotricyclic compound and a sesquiterpene lactone. It is a conjugate acid of a neopentalenolactone D(1-).
(1S,4aR,6aS,9aR)-1,8,8-trimethyl-3-oxo-1,4,4a,6a,7,9-hexahydropentaleno[6a,1-c]pyran-5-carboxylic acid