Used primarily as a herbicide, it effectively controls weeds in agricultural settings by disrupting photosynthesis in plants. It is applied to crops like cotton and potatoes to eliminate unwanted vegetation. Additionally, it serves as an electron transfer agent in electrochemical studies, aiding in research on redox reactions and energy storage systems. In biochemistry, it is utilized to study electron transport chains and oxidative stress in cellular processes. Its role in photochromic materials is also notable, contributing to the development of smart windows and optical devices.