Thiodigalactoside is widely used in biochemical research, particularly in the study of carbohydrate-protein interactions. It serves as a potent inhibitor of galectins, a family of proteins that bind to beta-galactosides. By inhibiting galectin activity, it helps researchers explore the role of these proteins in various biological processes, including immune response, inflammation, and cancer progression. Additionally, thiodigalactoside is utilized in the development of therapeutic agents targeting galectin-mediated pathways, offering potential applications in treating diseases such as fibrosis, diabetes, and certain types of cancer. Its ability to modulate galectin function makes it a valuable tool in both basic science and drug discovery efforts.