Used primarily as a precursor in the synthesis of other gold compounds for catalysis and pharmaceuticals. Employed in organic reactions, especially in gold-catalyzed transformations such as cyclizations and C–H activation. Serves as a catalyst or catalyst precursor in the production of fine chemicals and intermediates. Also utilized in research for developing luminescent materials and coordination complexes. Its reactivity makes it valuable in homogeneous catalysis and in the preparation of gold nanoparticles.