Ethoxy group

In chemistry, the alkoxy group is an alkyl group which is singularly bonded to oxygen; thus R−O. Denoted usually with apostrophe ('). The range of alkoxy groups is vast, the simplest being methoxy (CH₃O−). An ethoxy group (CH₃CH₂O−) is found in the organic compound ethyl phenyl ether (C₆H₅OCH₂CH₃, also known as ethoxybenzene).