This series of products belongs to non-ionic surfactants; due to their high level of surface activity, they have established their application status in cleaning agents, detergents, and other chemical industrial sectors. This series of products is mainly used in household detergents, industrial cleaning agents, and cleaning and detergent products for public places; they can be combined with anionic, cationic, non-ionic surfactants and additives, and are fully compatible with products such as alkyl aryl sulfonates, sulfate ethers, other sulfates, and sulfonates, thereby achieving synergistic effects and high-performance products. The versatility of this series of products also lies in their ability to be used in the formulation of acidic, alkaline, and neutral detergents to meet various needs; this series of products, when used in combination with other surfactants, also serves as a highly effective emulsifier. In most cleaning and detergent formulations, this series of products can replace alkyl phenol ethoxylates. To meet specific requirements, large amounts of acids, alkalis, salts, and organic solvents can be added to some formulations. High concentrations of acids, alkalis, and salts can reduce the solubility of Lutensol XL types. However, this does not affect their performance.