Used primarily in the synthesis of gold nanoparticles, this chemical serves as a precursor in nanotechnology applications. It is widely applied in the preparation of colloidal gold for use in biosensors, medical diagnostics, and targeted drug delivery systems. Its role in electroless plating makes it valuable in electronics for depositing thin gold films on surfaces. Additionally, it functions as a catalyst in certain organic reactions, particularly in oxidation processes. In research, it supports the development of gold-based materials for therapeutic and imaging purposes in medicine.