Widely used as a fluorescent dye in biological imaging and microscopy due to its high photostability and bright fluorescence. Commonly employed in labeling proteins, lipids, and nucleic acids to track cellular processes and molecular interactions. Its application extends to flow cytometry for cell sorting and analysis, as well as in fluorescence resonance energy transfer (FRET) studies to investigate molecular dynamics. Additionally, it is utilized in environmental monitoring for detecting pollutants and in material science for developing fluorescent sensors. Its versatility and strong emission make it a valuable tool in both research and diagnostic applications.