Primarily utilized in medicinal chemistry as a key intermediate for synthesizing bioactive compounds, particularly those modulating the central nervous system, with promising applications in anticancer and antiepileptic drug development. The β-carboline core, featuring fused indole and pyridine moieties akin to structures in established pharmaceuticals, underpins its bioactivity, including DNA intercalation and enzyme inhibition for antimicrobial and anticancer effects. Its fluorescent properties and extended π-conjugated system also support uses in biological sensors, probes for detecting metal ions or biomolecules, and as a building block for fluorescent dyes in optoelectronic materials like OLEDs and photovoltaics.