Used in the synthesis of pharmaceutical intermediates, particularly in the development of fluorinated drug compounds where the fluorine atom enhances metabolic stability and bioavailability. Its hydroxy and acetic acid functional groups allow for easy derivatization, making it valuable in constructing active pharmaceutical ingredients (APIs) for central nervous system agents and anti-inflammatory drugs. Commonly employed in coupling reactions to form esters, amides, or glycosides in medicinal chemistry. Also utilized in the preparation of radiolabeled compounds for positron emission tomography (PET) imaging due to the presence of fluorine-18 isotope compatibility.