6-Thioinosine Phosphate is primarily utilized in biochemical research, particularly in studies related to nucleotide metabolism and enzyme kinetics. It serves as a substrate analog in enzymatic assays to investigate the mechanisms of enzymes like nucleoside phosphorylases and kinases. This compound is also employed in the study of purine salvage pathways, helping researchers understand how cells recycle purine bases. Additionally, it has potential applications in the development of antiviral and anticancer agents, as it can interfere with nucleotide synthesis in rapidly dividing cells. Its role in modulating cellular processes makes it a valuable tool in both basic and applied biomedical research.