Sodium 1-Undecanesulfonate is a specialty surfactant primarily used as an ion-pairing agent in ion-pair chromatography for analytical separations, particularly in HPLC methods for separating charged analytes. Its high purity (98%) and low UV absorbance make it suitable as a reference standard in analytical chemistry.

Additionally, it serves as a surfactant in various industrial applications, including household cleaning products like detergents, dishwashing liquids, and laundry formulations, where it reduces surface tension to effectively remove dirt and grease.

In personal care, it is incorporated into shampoos, body washes, and facial cleansers for foaming and cleansing properties. It is also utilized in emulsion polymerization to stabilize particles in paints, coatings, and adhesives, and as a wetting agent in textiles to enhance dye penetration.