Used as an oxidizing agent in organic synthesis, particularly in the conversion of hydroquinones and in dehydrogenation reactions. Commonly employed in the production of hydroquinone, which is a key component in photographic developers and antioxidants. Acts as a catalyst or co-catalyst in polymerization processes and rubber manufacturing. Also utilized in the synthesis of dyes, perfumes, and certain pharmaceuticals. In biological research, it serves as an electron acceptor in studies of electron transport chains. Its ability to undergo reversible redox reactions makes it valuable in electrochemical applications and sensors.