Used in biochemical research, particularly in studies involving RNA synthesis and modification. It serves as a substrate for RNA polymerases, enabling the incorporation of thioguanosine into RNA strands, which can help in studying RNA structure and function. Additionally, it is utilized in the development of therapeutic RNA molecules and in probing enzyme mechanisms related to RNA processing. Its triethylamine salt form enhances solubility, making it suitable for various experimental setups in molecular biology and enzymology.