Used in biochemical and analytical laboratories to maintain a stable pH environment, especially in processes like chromatography, electrophoresis, and enzyme reactions where pH control is critical. Commonly applied in DNA and protein extraction protocols due to its ability to stabilize acidic conditions. Also utilized in pharmaceutical formulations to ensure product stability and in quality control testing for buffering capacity in various samples. Its consistent pH performance makes it ideal for calibration and standardization of pH meters in lab settings.