Used extensively as a fluorescent dye in various scientific applications, particularly in microscopy and imaging. It helps in tracking and visualizing biological molecules and cellular structures due to its strong fluorescence properties. In laser technology, it serves as a gain medium in dye lasers, enabling the production of specific wavelengths of light. Additionally, it is employed in photodynamic therapy for its ability to absorb light and generate reactive oxygen species, which can target and destroy diseased cells. Its high stability and efficiency make it a valuable tool in both research and medical fields.