Used as a highly effective catalyst in oxidation reactions, particularly in the selective oxidation of alcohols to aldehydes or ketones under mild conditions. Commonly employed in organic synthesis and pharmaceutical manufacturing due to its stability and reusability. Acts as a radical scavenger in polymer chemistry to control polymerization processes and prevent unwanted degradation. Also utilized in analytical chemistry for spin labeling in electron paramagnetic resonance (EPR) studies to investigate molecular structure and dynamics. Finds application in electrochemical sensors as a redox mediator to enhance signal sensitivity and response time.