Used primarily as an intermediate in organic synthesis, especially in the preparation of pharmaceuticals and agrochemicals. Its reactivity allows for the introduction of the 4-iodobenzoyl group into more complex molecules. Commonly employed in coupling reactions, such as Suzuki or Heck reactions, where the iodide functionality acts as a handle for palladium-catalyzed transformations. Also utilized in the synthesis of liquid crystals and functional materials due to its ability to link aromatic systems through amide or ester bonds. The acyl fluoride group readily reacts with amines and alcohols, making it valuable for constructing amides and esters under mild conditions.