Ethyl-PEG4-alcohol is widely used as a versatile chemical intermediate in the synthesis of various compounds. Its application is prominent in the development of pharmaceuticals, where it serves as a building block for drug delivery systems, enhancing solubility and bioavailability of active ingredients. In the field of cosmetics, it is utilized as a stabilizer and emulsifier, improving the texture and consistency of skincare and haircare products. Additionally, it finds use in industrial applications as a surfactant and lubricant, aiding in the formulation of coatings, adhesives, and cleaning agents. Its PEG (polyethylene glycol) chain provides hydrophilicity, making it valuable in creating water-soluble formulations across multiple industries.