Used primarily in specialized catalytic applications, particularly in organic synthesis where selective oxidation reactions are required. It facilitates the conversion of alkenes to diols and is effective in asymmetric dihydroxylation processes, which are important in pharmaceutical manufacturing. Due to its strong oxidizing properties, it is also employed in small quantities for staining biological samples in electron microscopy, enhancing contrast of cellular structures. Additionally, it finds use in certain electrochemical applications and in the preparation of osmium metal coatings for high-wear applications, such as in electrical contacts and microelectronic devices.