This chemical is primarily used as a stable free radical in various research and industrial applications. It is commonly employed in electron paramagnetic resonance (EPR) spectroscopy as a spin label or probe to study molecular dynamics, interactions, and structural changes in biological systems, polymers, and materials. Its stability and paramagnetic properties make it useful for investigating oxidation processes, free radical reactions, and the behavior of complex systems. Additionally, it can serve as a catalyst or mediator in organic synthesis, particularly in oxidation reactions, where it helps facilitate the transfer of electrons. Its role in polymer chemistry includes acting as a stabilizer or inhibitor to control polymerization rates and improve material properties.