Ethers are a class of organic compounds characterized by an oxygen atom connected to two alkyl or aryl groups. They have the general formula R-O-R', where R and R' represent the hydrocarbon chains. Ethers are known for their low reactivity and are commonly used as solvents in various chemical reactions due to their ability to dissolve a wide range of substances. One of the most well-known ethers is diethyl ether, which has been historically used as an anesthetic. Ethers are also important in the production of pharmaceuticals and in the manufacture of plastics. Their unique properties make them valuable in both industrial and laboratory settings.