Isothiocyanic Acid 2-Fluorophenyl Ester is primarily utilized in organic synthesis as a versatile reagent for introducing the isothiocyanate functional group into various chemical compounds. It is particularly valuable in the preparation of thiourea derivatives, which are often employed in pharmaceutical research for developing potential drug candidates. The compound is also used in the synthesis of heterocyclic compounds, which have applications in medicinal chemistry and agrochemicals. Additionally, it serves as a key intermediate in the production of fluorescent dyes and probes, aiding in biochemical and cellular imaging studies. Its reactivity with amines and other nucleophiles makes it a useful tool in the development of novel materials and polymers with specialized properties.