MES sodium salt is widely used as a buffering agent in biochemical and molecular biology applications. It is particularly effective in maintaining stable pH conditions in the range of 5.5 to 6.7, making it suitable for various laboratory procedures. It is commonly employed in cell culture media, protein purification, and electrophoresis to ensure optimal conditions for biological processes. Additionally, MES sodium salt is used in chromatography as a buffer to enhance separation efficiency. Its low UV absorbance also makes it ideal for spectrophotometric analyses. In plant biology, it is utilized to maintain pH in nutrient solutions for hydroponic systems. Its stability and compatibility with biological systems make it a reliable choice for scientific research and industrial applications.