Used primarily in pharmaceutical research as an intermediate in the synthesis of biologically active compounds. Shows potential in the development of central nervous system agents due to its structural affinity with neuroactive molecules. Investigated for its role in modulating receptor activity, particularly in psychiatric and neurological drug discovery. Also employed in the preparation of fluorescent probes for biochemical assays owing to its quinoline backbone, which exhibits favorable photophysical properties. Its piperazinyl group enhances solubility and binding selectivity, making it suitable for optimizing drug candidates in medicinal chemistry.