Used in the synthesis of fluorinated pyrimidine derivatives for pharmaceutical research, particularly in the development of antiviral and anticancer agents. It serves as an intermediate in the preparation of bioactive molecules that mimic natural nucleobases, enabling selective inhibition of enzymes involved in nucleotide metabolism. Also employed in studies of DNA base-pairing and stability due to the electron-withdrawing effect of the fluorine atom. Its structural properties make it valuable in probing enzyme mechanisms and designing targeted therapies.