Used as a key intermediate in the synthesis of fluorinated pharmaceuticals, particularly in the development of agrochemicals and active pharmaceutical ingredients (APIs) where fluorine substitution enhances metabolic stability and bioavailability. Its aldehyde functionality allows for facile derivatization, enabling incorporation into larger molecular frameworks. Commonly employed in cross-coupling reactions and condensation processes to build complex aromatic systems found in bioactive molecules. Valued in medicinal chemistry for enabling structure-activity relationship (SAR) studies due to the strategic placement of fluorine atoms and the reactive aldehyde group.