Hexaethylene glycol monohexadecyl ether is a nonionic surfactant within the polyethylene glycol (PEG) ether family. It features a hydrophilic head and a lipophilic tail, making it versatile for numerous applications. Specifically, Hexaethylene glycol monohexadecyl ether is commonly employed in membrane protein research to dissolve and stabilize proteins for structural analysis techniques like X-ray crystallography and electron microscopy. Additionally, it is utilized in various industrial and research contexts, such as drug delivery systems, nanotechnology, and diagnostic analysis. Its unique properties make it ideal for facilitating interactions between molecules with differing physicochemical properties.