Used as a buffering agent in biochemical and molecular biology applications to maintain stable pH levels in various solutions. It is commonly employed in enzyme assays, protein purification, and electrophoresis to ensure optimal reaction conditions. Additionally, it serves as a component in cell culture media to support cell growth and maintain physiological pH. In diagnostic kits, it helps stabilize reagents and improve accuracy in test results. Its buffering capacity also makes it useful in cosmetic formulations to balance product pH and enhance stability.