MES Potassium salt is widely used as a buffering agent in biochemical and molecular biology research. It has an effective pH range of approximately 5.5-6.7, making it particularly effective in maintaining stable pH conditions in cell culture media, enzyme assays, and protein purification processes. Its compatibility with biological systems makes it suitable for use in electrophoresis and chromatography techniques. Additionally, it is employed in diagnostic kits and reagent formulations to ensure accurate and reproducible results. The compound’s low UV absorbance also makes it ideal for applications involving spectrophotometric analysis.