 A variety of halogenated ethers (e.g., isoflurane, sevoflurane) and diethyl ether itself are general anesthetics, and flurothyl is a substituted diethyl ether.Even more strikingly, a structural isomer of flurothyl known as ‘iso-flurothyl’ (1,1,1,3,3,3-hexafluoro-2-methoxypropane) induces general anesthesia and not convulsions in mice and dogs.Iso-flurothyl differs from the widely used inhalational anesthetic sevoflurane by only a single fluorine atom (sevoflurane has an additional fluorine on the methyl group).