Widely used as a fluorescent tracer in biological and environmental studies due to its strong visible fluorescence under UV light. Commonly employed in microscopy to label cells and cellular components for imaging. Used in flow visualization in fluid dynamics research, helping to track movement and mixing in liquids. Serves as a laser dye in tunable dye lasers, particularly in the green to yellow-orange range, and in photonics research including high-intensity liquid lasers. Also applied in photovoltaic research as a sensitizer in dye-sensitized solar cells. Sensitive to environmental changes such as pH and ion concentrations, enabling detection in low concentrations for studies like groundwater diffusion. Its high quantum yield and photostability make it suitable for various sensing and detection systems.