6,6’-Oxybis-2-naphthalenesulfonic Acid Disodium Salt is widely used in the textile industry as a dyeing auxiliary. It enhances the solubility of dyes, ensuring even distribution and improved color fastness on fabrics. In the paper industry, it acts as a dispersing agent, helping to maintain the uniformity of coatings and pigments. Additionally, it is employed in the production of detergents, where it aids in preventing the redeposition of soil onto cleaned surfaces. Its ability to stabilize emulsions makes it valuable in various industrial processes, including the formulation of adhesives and coatings.