Used primarily as a reagent in organic synthesis, particularly for the introduction of the trimethyltin group into organic molecules. This compound is valuable in palladium-catalyzed cross-coupling reactions, such as the Stille reaction, where it facilitates the formation of carbon-carbon bonds. It is also employed in the preparation of other organotin derivatives used in materials science and pharmaceutical research. Due to its high reactivity and toxicity, handling requires strict safety controls. Its use is generally limited to specialized laboratory settings rather than industrial-scale applications.