Used in research as a fluorescent probe due to its strong emission properties, particularly in studying nucleic acids and protein interactions. Its derivatives are explored in medicinal chemistry for antitumor and antimicrobial applications. Also employed in the development of sensors for metal ions and biomolecules because of its sensitivity to environmental changes. Serves as a building block in synthesizing more complex acridine-based compounds with potential use in photodynamic therapy and as DNA intercalators.