Synonyms: 2H-Naphtho[1,8-bc]furan-2-one,6-[2-(3-furanyl)ethyl]decahydro-6-hydroxy-2a,5a,7-trimethyl-, [2aS-(2aa,5ab,6a,7a,8aa,8ba)]-;8bH-Labda-13(16),14-dien-19-oicacid, 15,16-epoxy-6b,9-dihydroxy-, g-lactone (8CI); Marrubiin (6CI);15,16-Epoxy-6b,9-dihydroxy-8bH-labda-13(16),14-dien-19-oic acid g-lactone;Marrubin;NSC 36693