It is primarily used in organic synthesis as a precursor for the development of various heterocyclic compounds. Its structure makes it valuable in the creation of dyes and pigments, particularly for applications in textile and paper industries. Additionally, it serves as a key intermediate in the synthesis of pharmaceuticals, especially those targeting neurological disorders. Its quinolinium core is also explored in the design of fluorescent probes for biological imaging and diagnostics, aiding in the detection of specific biomolecules in research settings.