Hemin is widely used in biochemical research as a precursor for the synthesis of heme proteins and enzymes. It plays a crucial role in studying the structure and function of hemoglobin, myoglobin, and cytochromes. In medical applications, hemin is utilized to treat acute porphyrias, a group of rare metabolic disorders, by reducing the production of porphyrin precursors and alleviating symptoms. Additionally, it serves as a catalyst in various organic reactions and is employed in the development of biosensors and bioelectronic devices due to its redox properties. Hemin is also used in cell culture studies to investigate heme metabolism and its role in cellular processes.