Used in the synthesis of fluorinated pharmaceuticals, particularly in the development of antiviral and anticancer agents. The fluorine atom enhances metabolic stability and bioavailability of drug candidates. Employed as a building block in peptide-based research to study structure-activity relationships where fluorination affects conformation and binding affinity. Also applied in radiolabeling studies using fluorine-18 for positron emission tomography (PET) imaging probes, aiding in the visualization of biological processes.