Synonyms: 1,4-Methanoazulene,decahydro-4,8,8-trimethyl-9-methylene-, (1S,3aR,4S,8aS)-(+)- (8CI); 1,4-Methanoazulene,decahydro-4,8,8-trimethyl-9-methylene-, [1S-(1a,3ab,4a,8ab)]-; Longifolene (6CI); (+)-Longifolene; Junipen;Junipene; Kuromatsuen; Kuromatsuene; Longifolen; NSC 150808; d-Longifolene; a-Longifolene