This MES buffer solution (0.5 M, pH 6.5) ensures dependable pH regulation for experiments operating in slightly acidic to near-neutral conditions. MES, a member of the Good’s buffer family, exhibits low ionic interference and excellent solubility in water. It is extensively used in enzymatic reactions, electrophoretic separations, and purification techniques where a non-reactive, non-coordinating buffer is essential for reproducibility and protein stability.