Taurocholic acid sodium salt hydrate is widely used in biochemical research, particularly in studies involving bile acids and their role in digestion and lipid metabolism. It serves as a critical component in cell culture media to enhance the solubility and absorption of lipids and fat-soluble vitamins. This compound is also employed in the preparation of micelles and liposomes, aiding in drug delivery systems by improving the bioavailability of hydrophobic drugs. Additionally, it is utilized in diagnostic assays to study liver function and bile acid-related disorders. Its ability to emulsify fats makes it valuable in industrial applications, such as the production of dietary supplements and pharmaceuticals.