Adenosine 5'-diphosphate sodium salt is widely used in biochemical research and medical applications. It plays a critical role in studying cellular energy metabolism, as it is a key intermediate in ATP synthesis and breakdown. Researchers utilize it to investigate enzymatic reactions, particularly those involving kinases and ATPases, to understand energy transfer processes in cells. Additionally, it is employed in diagnostic assays to measure enzyme activity and evaluate mitochondrial function. In pharmacology, it serves as a reference compound for developing drugs targeting metabolic disorders or cardiovascular diseases. Its stability and solubility make it a reliable reagent in laboratory experiments and industrial biotechnological processes.