CF™750 NHS ester (CF™750 SE) is an amine-reactive, near IR fluorescent dye. The dye has an absorption peak at 755 nm and emission peak at 777 nm. CF™750 is 30-40% brighter than Alexa Fluor® 750 and at least twice as bright as Cy®7. Also, importantly, CF™750 is much more photostable than Cy®7 and Alexa Fluor® 750. Like our other near-IR CF™ dyes, CF™750 is ideal for in vivo imaging, near-IR Western blotting and flow cytometry. Because of the superior brightness of CF™750, antibodies labeled with the dye can be used in flow cytometry using 633 nm excitation and yield higher signal than antibodies labeled with tandem dyes. Biotium also offers CF™750 VivoBrite labeling kit for small animal in vivo imaging (cat#92161).