Cardiolipin (Heart, Bovine) (sodium salt) is widely used in research to study mitochondrial function and membrane dynamics. It plays a critical role in maintaining the structural integrity and efficiency of the inner mitochondrial membrane, making it essential for investigations into cellular energy production and apoptosis. This compound is also utilized in the development of model membranes to mimic mitochondrial environments, aiding in the study of lipid-protein interactions and membrane-associated processes. Additionally, it is employed in immunological research due to its involvement in autoimmune responses, particularly in conditions like antiphospholipid syndrome. Its applications extend to drug discovery, where it is used to screen and evaluate compounds targeting mitochondrial dysfunction or lipid metabolism disorders.