Used primarily as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It acts as a carbonylating agent, facilitating the introduction of carbonate functional groups into target molecules. Its reactivity makes it valuable in the development of protected alcohol derivatives and in the synthesis of complex esters under mild conditions. Commonly employed in research settings for constructing biologically active compounds, including certain antiviral and anti-inflammatory agents. Due to its sensitivity, it is handled under controlled conditions to ensure stability and selectivity in reactions.