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 for creating quinazoline-based drugs that target tyrosine kinases involved in tumor growth and proliferation. Its structure allows for selective modifications, enabling optimization of drug potency and selectivity. Also employed in research settings to design new bioactive molecules with potential anti-inflammatory, antimicrobial, or antiviral properties.