Widely used as a fluorescent dye in laser technology, particularly in dye lasers that emit in the yellow-orange range. Its high quantum yield and photostability make it ideal for generating tunable coherent light in research and spectroscopy.

Commonly employed in biological staining and fluorescence microscopy to label cells and cellular components due to its bright emission and good solubility in water and ethanol.

Used as a tracer in environmental studies to monitor water flow, detect leaks, and study fluid dynamics in rivers, groundwater, and industrial systems.

Applied in photovoltaic research as a sensitizer in dye-sensitized solar cells to enhance light absorption and improve energy conversion efficiency.

Also utilized in forensic science and material science for visualization of thin films, polymer structures, and surface defects under UV or blue light excitation.