Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of fluorinated active pharmaceutical ingredients (APIs) where the fluorine atom enhances metabolic stability and bioavailability. It serves as a building block in the preparation of kinase inhibitors and other biologically active molecules targeting cancer and inflammatory diseases. Its aldehyde and amine functional groups allow for versatile derivatization, enabling the formation of Schiff bases, heterocycles, and conjugated systems in medicinal chemistry. Also employed in the production of agrochemicals and fluorescent dyes due to its aromatic structure and reactivity.