Widely used as a key intermediate in the synthesis of pharmaceuticals and biologically active compounds, particularly in the development of kinase inhibitors and antitumor agents. Its structure supports the construction of complex heterocyclic systems, making it valuable in medicinal chemistry for designing drugs targeting cancer and inflammatory diseases. It is also employed in the preparation of pyrrole-based dyes and functional materials due to its electron-rich aromatic core. Its amino and ester functionalities allow for easy modification, enabling diverse chemical transformations in multi-step organic syntheses.