Used extensively in biological research for fluorescent labeling of proteins, nucleic acids, and other biomolecules. It enables visualization and tracking of cellular processes, molecular interactions, and localization in live or fixed cells. Commonly applied in fluorescence microscopy, flow cytometry, and immunofluorescence assays. Its high photostability and brightness make it suitable for sensitive detection in various imaging techniques. Also employed in molecular diagnostics for detecting specific sequences in DNA or RNA hybridization studies. Additionally, it is utilized in drug discovery for screening and identifying target molecules in high-throughput assays.