Synonyms: 12-Oxabicyclo[9.1.0]dodeca-4,7-diene,1,5,9,9-tetramethyl-, (E,E)-(1R,11R)-(-)- (8CI); 12-Oxabicyclo[9.1.0]dodeca-4,7-diene,1,5,9,9-tetramethyl-, [1R-(1R*,4E,7E,11R*)]-; Humulene, epoxide (7CI); HumuleneI epoxide; Humulene epoxide I; Humulene monoxide; Humulene oxide; Humuleneoxide I; a-Humulene epoxide I; a-Humulene oxide