Used as a catalyst precursor in gold-mediated organic transformations, particularly in reactions involving alkyne activation and cyclization processes. Its stability and solubility in common organic solvents make it suitable for homogeneous catalysis. The tetrahydrothiophene ligand helps modulate the electronic properties of the gold center, enhancing selectivity in carbon–carbon bond-forming reactions. It is also employed in the synthesis of complex organic molecules in pharmaceutical and fine chemical industries.