Used as a fluorescent probe in biochemical assays due to its ability to emit light upon excitation, making it valuable for detecting enzyme activity and monitoring redox reactions. It serves as a model compound in studies of flavin-dependent proteins, helping researchers understand electron transfer mechanisms in biological systems. Also applied in photodynamic therapy research for its light-induced reactivity, showing potential in targeted cell modulation. Its stable aromatic structure makes it useful in developing sensors for oxygen and reactive oxygen species.