Used primarily in the synthesis of gold nanoparticles for applications in catalysis, electronics, and biomedical fields. Serves as a precursor in the production of gold-based catalysts for chemical reactions such as CO oxidation and selective oxidation processes. Employed in electroplating baths to deposit thin gold films on surfaces for electrical connectors, printed circuit boards, and semiconductor devices. Utilized in the preparation of gold-containing materials for sensors, conductive inks, and antimicrobial coatings. Also applied in research for developing gold-doped nanomaterials and in pharmaceutical studies exploring gold complexes for anti-inflammatory or anticancer agents.