Synonyms: METHYL NONAFLUOROBUTYL KETONE;METHYL PERFLUORO-N-BUTYL KETONE;METHYL PERFLUOROBUTYL KETONE;1,1,1,2,2,3,3,4,4-NONAFLUORO-5-HEXANONE;1H,1H,1H-PERFLUORO-2-HEXANONE;1H,1H,1H-NONAFLUORO-2-HEXANONE;3,3,4,4,5,5,6,6,6-NONAFLUORO-2-HEXANONE;Perfluorohexanone