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| # | Species | Formula |
| 1618 | N,N,N',N'-Tetrafluoro-4-methyl-1,2-pentane | C6H12N2F4 | |
| 1619 | 1,1-Bis(difluoroamine)heptane | C7H14N2F4 | |
| 1620 | Perfluoromethanol | COF4 | |
| 1621 | Bis(fluoroxy)perfluoromethane | CO2F4 | |
| 1622 | Pentafluorobenzene | HC6F5 | |
| 1623 | 2,3,4,5,6-Pentafluorotoluene | C7H3F5 | |
| 1624 | Pentafluoromethylamine | CNF5 | |
| 1625 | Pentafluoroguanidine | CN3F5 | |
| 1626 | Pentafluorophenol | HC6OF5 | |
| 1627 | Hexafluoroethane (Geo) | C2F6 | |
| 1628 | Hexafluoroethane | C2F6 | |
| 1629 | Perfluorobutadiene | C4F6 | |
| 1630 | Hexafluorobenzene | C6F6 | |
| 1631 | Hexafluorodimethylamine | CN2F6 | |
| 1632 | Dimethyl perfluoroether (Geo) | C2OF6 | |
| 1633 | Dimethyl perfluoroether | C2OF6 | |
| 1634 | Perfluoroacetone | C3OF6 | |
| 1635 | Hexafluoropentanedioic acid, dimethyl ester | C7H6O4F6 | |
| 1636 | Heptafluoromethane triamine | CN3F7 | |
| 1637 | Perfluoropropane (Geo) | C3F8 | |
| 1638 | Perfluoropropane | C3F8 | |
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