Sodium ethanesulfonate is primarily used as a buffering agent in various chemical and biochemical applications. It helps maintain a stable pH level in solutions, making it valuable in laboratory research, particularly in protein and enzyme studies. Additionally, it is employed in the production of detergents and cleaning agents, where it enhances the stability and effectiveness of formulations. In the pharmaceutical industry, it serves as an excipient in drug formulations, ensuring the stability and solubility of active ingredients. It is also utilized in electroplating processes to improve the quality and adhesion of metal coatings. Its compatibility with a wide range of chemicals makes it a versatile component in industrial and scientific applications.