Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for constructing nitrogen-containing heterocycles. It is also employed in the preparation of fluorescent dyes and optoelectronic materials due to its rigid aromatic framework. In research, it serves as a building block for novel compounds in agrochemicals and materials science.