Used as an intermediate in the synthesis of pharmaceuticals, particularly in the production of active ingredients for central nervous system (CNS) drugs. It serves as a building block in the development of certain antidepressants and anticonvulsants due to its ability to modify aromatic and aliphatic structural components in drug molecules. Also utilized in the preparation of fluorinated organic compounds where the fluorophenyl group enhances metabolic stability and bioavailability. Its aldehyde functionality allows for easy conversion into amines, alcohols, or acids, making it valuable in medicinal chemistry and process development.