Used as a buffer and stabilizer in pharmaceutical and biological formulations due to its ability to maintain pH in sensitive systems. Commonly found in cell culture media and enzyme reaction buffers where phosphate balance is critical. Also serves as a source of glycerophosphate in metabolic studies, supporting research on lipid metabolism and bone mineralization. Its disodium salt form enhances solubility and biocompatibility, making it suitable for use in injectable preparations and diagnostic reagents.