Abstract The oil isolated by hydrodistillation from the aerial parts of Eupatorium capillifolum (Lam.). Small grown in Cuba was analyzed by capillary GC and GC/MS. Among the 33 compounds identified, p-cymene (23.68%), selin-11-en-4Î±-ol (12.28%), methyl thymol (8.85%) and Î²-bisabolene (8.24%) were found to be the major constituents