Iridium(III) chloride is widely used as a precursor in the synthesis of various iridium-based compounds, particularly in the field of catalysis. It plays a crucial role in the production of catalysts for organic reactions, including hydrogenation and oxidation processes, which are essential in pharmaceutical and chemical manufacturing. Additionally, it is utilized in the creation of materials for organic light-emitting diodes (OLEDs), where it contributes to the development of efficient and durable light-emitting layers. Its application also extends to electroplating, where it is used to deposit thin layers of iridium onto surfaces for enhanced durability and resistance to corrosion. In research, it serves as a key reagent for studying coordination chemistry and developing new metal-organic frameworks.