 Perfluoro-1,3-dimethylcyclohexane can be manufactured by the Fowler process, which involves moderating the action of elemental fluorine with cobalt fluoride in the gas phase from "meta"-xylene.This is preferred as the starting material over 1,3-dimethylcyclohexane as less fluorine is required.Perfluoro-1,3-dimethylcyclohexane is chemically inert and thermally stable (to over 400 °C).