Elastatinal is primarily used in biochemical research as a potent inhibitor of elastase, an enzyme that breaks down elastin, a key component of connective tissues. Its application is significant in studying the role of elastase in various physiological and pathological processes, such as inflammation, tissue remodeling, and diseases like emphysema and chronic obstructive pulmonary disease (COPD). Researchers utilize elastatinal to investigate the mechanisms of elastin degradation and to develop therapeutic strategies targeting elastase activity. Additionally, it serves as a tool in enzymology to understand enzyme kinetics and inhibition patterns, aiding in the design of more effective enzyme inhibitors for medical applications.