Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in medicinal chemistry due to its reactive pyrimidine core, which can be further modified to enhance biological activity. Commonly employed in the preparation of antiviral agents and anti-inflammatory drugs. Its chloro and amine groups allow for selective substitutions, enabling the design of targeted therapies. Also utilized in agrochemical research for developing novel pesticides with improved efficacy and selectivity.