Diethyl Ether AR (Analytical Reagent) is a high-purity grade of diethyl ether [(C₂H₅)₂O], a colourless, transparent, volatile and mobile liquid with a pleasant aromatic odour. The AR grade ensures it meets strict purity standards, making it suitable for analytical and laboratory use. It is also known by alternate names such as Ethyl Ether, Diethyl Oxide, 1,1'-Oxybisethane, and Ethyl Oxide