This chemical is primarily used in biochemical research as a selective inhibitor of nitric oxide synthase (NOS). It helps in studying the role of nitric oxide in various physiological and pathological processes. Researchers utilize it to understand cardiovascular functions, immune responses, and neurological activities. It is also employed in experiments to explore the mechanisms of diseases like hypertension, atherosclerosis, and neurodegenerative disorders. Additionally, it serves as a tool in pharmacological studies to develop potential therapeutic agents targeting NOS pathways.