Used primarily as a fluorinated building block in organic synthesis, especially in the development of pharmaceuticals and agrochemicals. Its high fluorine content enhances metabolic stability and lipophilicity in bioactive molecules, making it valuable in designing drugs with improved bioavailability and target specificity. It is also employed in the synthesis of specialty polymers and functional materials where thermal and chemical resistance are required. Due to the reactive acid chloride group, it readily forms amides, esters, and other derivatives under mild conditions, enabling efficient incorporation into complex molecular architectures. Its application is particularly notable in medicinal chemistry for creating fluorinated analogs of natural compounds.