Used as a key intermediate in the synthesis of fluorinated pharmaceuticals, particularly in the development of kinase inhibitors and antiviral agents. Its aldehyde functionality allows for facile condensation reactions, enabling the construction of complex aromatic frameworks. The presence of fluorine atoms enhances metabolic stability and membrane permeability in drug candidates. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its ability to modulate electronic and steric properties in bioactive molecules.