Synonyms: Bicyclo[3.3.1]non-3-ene-2,9-dione,3-(3,4-dihydroxybenzoyl)-4-hydroxy-8,8-dimethyl-1,7-bis(3-methyl-2-butenyl)-5-[(2R)-5-methyl-2-(1-methylethenyl)-4-hexenyl]-,(1S,5S,7S)- (9CI); Bicyclo[3.3.1]non-3-ene-2,9-dione, 3-(3,4-dihydroxybenzoyl)-4-hydroxy-8,8-dimethyl-1,7-bis(3-methyl-2-butenyl)-5-[5-methyl-2-(1-methylethenyl)-4-hexenyl]-,[1S-[1a,5a,5(S*),7b]]-; Guttiferone E