Used as a key intermediate in the synthesis of fluorinated pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) for central nervous system (CNS) drugs and kinase inhibitors. Its fluorinated aromatic structure enhances metabolic stability and bioavailability in drug candidates. Commonly employed in coupling reactions to introduce the phenylacetic acid moiety in medicinal chemistry. Also utilized in the preparation of selective serotonin reuptake inhibitors (SSRIs) and related antidepressants due to its ability to modulate electron density and lipophilicity in the final molecule.