Sodium taurocholate hydrate is widely used in the pharmaceutical and biomedical research fields. It is commonly employed as a bile salt in drug delivery systems to enhance the solubility and absorption of poorly water-soluble drugs, particularly in the gastrointestinal tract. In research, it is utilized to mimic physiological conditions in studies related to digestion, lipid metabolism, and intestinal absorption. Additionally, it serves as a critical component in cell culture media for stabilizing membrane proteins and maintaining cell viability. Its surfactant properties also make it useful in analytical chemistry for solubilizing and isolating biomolecules.