乙二醇单乙醚，结构式HOCH₂CH₂OC₂H₅。

无色几乎无臭液体。与水、乙醇、丙酮、乙醚和液体酯类混溶，可溶解多种油类、蜡和树脂等。有毒，可经皮肤吸收。

2-Ethoxyethanol, also known by the trademark Cellosolve or ethyl cellosolve, is a solvent used widely in commercial and industrial applications. It is a clear, colorless, nearly odorless liquid that is miscible with water, ethanol, diethyl ether, acetone, and ethyl acetate.