Used as an 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 halogenated aromatic structure, which allows for selective cross-coupling reactions. Commonly employed in the preparation of bioactive molecules targeting tyrosine kinase and other enzyme systems involved in cell signaling. Also utilized in research settings for the design of novel quinazoline-based therapeutic agents with antitumor and anti-inflammatory properties.