This chemical is widely used as an initiator in atom transfer radical polymerization (ATRP), a process essential for creating well-defined polymers with controlled molecular weights and architectures. It is particularly valuable in synthesizing block copolymers, star polymers, and other complex polymeric structures. Additionally, it serves as a key reagent in surface modification, enabling the grafting of polymer brushes onto various substrates like silicon wafers, glass, and metals. This functionality is crucial in applications such as creating antifouling coatings, biosensors, and advanced materials for nanotechnology. Its role in organic synthesis also extends to the preparation of pharmaceuticals and specialty chemicals, where it acts as a versatile building block for introducing specific functional groups.