Used in the synthesis of gold nanoparticles for applications in catalysis, electronics, and biomedical fields. Serves as a precursor in gold plating and electroplating processes due to its ability to provide soluble gold ions. Employed in research and industrial settings for the preparation of gold-based catalysts, especially in reactions involving oxidation and hydrogenation. Also utilized in the fabrication of conductive inks and coatings for printed electronics. In analytical chemistry, it acts as a reagent for gold detection and quantification.