Used as an intermediate in organic synthesis, particularly in the development of pharmaceutical compounds. It serves as a building block for nitrogen-containing heterocycles, which are common structures in bioactive molecules. Its amine functional groups allow for further derivatization, making it valuable in medicinal chemistry research. It has been explored in the design of kinase inhibitors and other enzyme modulators due to the quinazoline core’s affinity for biological targets. Also finds use in the study of structure-activity relationships in drug discovery programs.