The molecule is a labdane diterpenoid that is labda-8(17),14-diene substituted by a (R)-hydroxy group at position 13 and an alpha-hydroperoxy group at position 7. Isolated from the aerial parts of Aster spathulifolius, it exhibits moderate cytotoxicity against human cancer cells. It has a role as a metabolite and an antineoplastic agent. It is a labdane diterpenoid, a peroxol and a tertiary alcohol.
(3R)-5-[(1R,3R,4aS,8aS)-3-hydroperoxy-5,5,8a-trimethyl-2-methylidene-3,4,4a,6,7,8-hexahydro-1H-naphthalen-1-yl]-3-methylpent-1-en-3-ol