Used primarily in organic synthesis, it serves as a key reagent for introducing the propionyl group into various compounds. It is particularly valuable in the production of pharmaceuticals, where it aids in the creation of active ingredients. Additionally, it is employed in the manufacture of agrochemicals, contributing to the development of pesticides and herbicides. Its reactivity makes it useful in the synthesis of fine chemicals and specialty polymers. Handling requires strict safety measures due to its corrosive and toxic nature.