Octaethylene glycol monodecyl ether is a nonionic surfactant widely employed in industrial and research settings. As a member of the polyethylene glycol (PEG) ether family, it features a hydrophilic head and hydrophobic tail, making it suitable for use in emulsions, detergents, and solubilizers. Particularly beneficial in membrane protein studies, it facilitates the dissolution and stabilization of proteins for structural analysis techniques. Furthermore, Octaethylene glycol monodecyl ether possesses the capability to interact with and penetrate cell membranes, revealing potential applications in drug delivery and other medical fields.