| ลำดับที่ 38 สารในกลุ่ม PERFLUOROCARBONS and its substitutions | 
| ชื่อสาร | สูตรทางเคมี | ชื่อทางเคมี & Synonyms | CAS NO. | |
| 1 | FC-116 | C2F6 | Hexafluoroethane freon 116 perfluoroethane F116 Halocarbon 116 | 76-16-4 | 
| 2 | PC-14 | CF4 | Carbon Tetrafluoride Tetrafluoromethane FC 14 R 14(Refrigerant) Halocarbon 14 Carbon tetrafluoride, 99.7% (Assay) | 75-73-0 | 
| 3 | PFC-218 | C3F8 | octafluoropropane Perfluoropropane | 76-19-7 | 
| 4 | PFC-31- | C4F10 | Perfluorobutane Perfluoro-n-butane Decafluorobutane | 355-25-9 | 
| 5 | PFC-41- | C5F12 | dodecafluoro-pentane n-Perfluoropentane Perfluoropentane Perfluoro-n-pentane | 678-26-2 | 
| 6 | PFC-51- | C6F14 | Perfluorohexane Tetradecafluorohexane Perfluoro-compound FC-72 Fluorinert FC72 n-Perfluorohexane Perfluoro-n-Hexane FLUTEC PP1 | 355-42-0 | 
| ?.. | ? . | Cn F2n+2 | ? . | ? . |