The molecule is a sesquiterpene lactone that is the 1beta-hydroxy derivative of arbusculin A. Isolated from Saussurea lappa, it exhibits inhibitory activity against melanogenesis. It has a role as a metabolite and a melanin synthesis inhibitor. It is a sesquiterpene lactone, a diol and an organic heterotricyclic compound. It derives from an arbusculin A.
(3aS,5aR,6R,9R,9aS,9bS)-6,9-dihydroxy-5a,9-dimethyl-3-methylidene-3a,4,5,6,7,8,9a,9b-octahydrobenzo[g][1]benzofuran-2-one