Nomenclature In the IUPAC Nomenclature system, ethers are named using the general formula "alkoxyalkane", for example CH3–CH2–O–CH3 is methoxyethane. If the ether is part of a more-complex molecule, it is described as an alkoxy substituent, so –OCH3 would be considered a "methoxy-" group. The simpler alkyl radical is written in front, so CH3–O–CH2CH3 would be given as methoxy(CH3O)ethane(CH2CH3).
nomenclature in the iupac nomenclature system ethers are named using the general formula "alkoxyalkane" for example ch3–ch2–o–ch3 is methoxyethane if the ether is part of a more-complex molecule it is described as an alkoxy substituent so –och3 would be considered a "methoxy-" group the simpler alkyl radical is written in front so ch3–o–ch2ch3 would be given as methoxy(ch3o)ethane(ch2ch3)