Widely used as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its structure allows for selective substitution reactions, making it valuable in constructing complex molecules. Commonly employed in the development of herbicides and fungicides due to its reactivity with nucleophiles. Also utilized in the preparation of kinase inhibitors and other biologically active compounds in medicinal chemistry. Its fluorinated and chlorinated nature enhances membrane permeability and metabolic stability in drug candidates. Frequently used in research settings for building pyrimidine-based scaffolds in drug discovery programs.