Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors for cancer treatment. It serves as a building block in the preparation of bioactive molecules due to its reactive chlorine atoms, which allow for further functionalization through cross-coupling reactions. Commonly employed in research settings for the design of novel pyrimidine-based drugs with potential antiviral and anti-inflammatory properties. Its structural features make it valuable in medicinal chemistry for optimizing drug candidates targeting specific enzyme pathways.