Used as a precursor in the synthesis of osmium-based catalysts, particularly for oxidation reactions such as dihydroxylation of alkenes. It plays a key role in homogeneous catalysis and the development of osmium complexes for organic transformations, including olefin metathesis. Also utilized in research settings for the preparation of other osmium compounds due to its reactivity and stability in controlled environments. Limited industrial applications due to osmium's rarity, high cost, and toxicity, but essential in specialized chemical synthesis, coordination chemistry, and catalytic studies.