Used primarily in research and specialized chemical synthesis, this compound serves as a precursor for osmium-based catalysts in oxidation reactions. It is also employed in the preparation of other osmium complexes used in electrochemical studies and materials science. Due to its defined chlorine and osmium content, it supports the development of catalysts for fine chemical and pharmaceutical manufacturing. Additionally, it finds use in academic and industrial laboratories for studying metal halide hydrates and their thermal decomposition behavior.