5-Methoxy-1-[4-(trifluoromethyl)phenyl]-1-pentanone , its cas register number is 61718-80-7. It also can be called (4-Methoxybutyl)(4-trifluoromethylphenyl)methanone ; and 1-Pentanone, 5-methoxy-1-[4-(trifluoromethyl)phenyl]- .