Used in biochemical and analytical laboratories to maintain a stable pH environment, particularly in processes involving enzymes and proteins that are sensitive to pH changes. Commonly applied in chromatography, electrophoresis, and DNA extraction procedures. Also utilized in pharmaceutical formulations to ensure drug stability and in microbial testing to control pH during cultivation. Its buffering capacity around pH 4.5 to 5.5 makes it ideal for urine preservation in clinical samples and for use in food microbiology testing.