Used primarily as an intermediate in organic synthesis, it plays a key role in the production of pharmaceuticals, agrochemicals, and dyes. It is commonly employed in acylation reactions to introduce the isobutyryl group into various compounds. Additionally, it serves as a reagent in the synthesis of peroxides and other specialty chemicals. Its reactivity makes it valuable in the creation of complex molecules for industrial and research purposes. Proper handling is essential due to its corrosive and volatile nature.