This chemical is widely used as a fluorescent dye in biological research and imaging applications. It is particularly effective in labeling cell membranes and lipophilic structures due to its strong affinity for lipid bilayers. The dye’s high fluorescence intensity and photostability make it suitable for long-term tracking of cellular processes, such as membrane dynamics and vesicle trafficking. It is also utilized in fluorescence microscopy, flow cytometry, and single-molecule imaging studies to visualize and analyze cellular components. Additionally, its near-infrared emission properties enable its use in deep-tissue imaging, making it valuable in in vivo studies and diagnostic applications.