Used as a redox-active compound in electrochemical applications, particularly in the development of organic radical batteries and electrochromic devices. Its stable radical formation and reversible oxidation-reduction behavior make it suitable for use in energy storage systems where fast charge-discharge cycles are required. Also employed as an electron-transfer mediator in analytical chemistry and sensors due to its well-defined electrochemical potential and durability under repeated cycling. Additionally, it finds use in photochemical systems as a component for studying electron transfer processes in solution.