Used as a key intermediate in the synthesis of acridine-based dyes and fluorescent compounds. Employed in the development of organic semiconductors and optoelectronic materials due to its rigid aromatic structure and electron-donating properties. Also applied in medicinal chemistry as a scaffold for designing bioactive molecules, including potential antitumor and antimicrobial agents. Its derivatives are explored in photoredox catalysis and as ligands in metal complexes for catalytic transformations.