5(6)-Carboxyfluorescein succinimidyl ester
- Product Code: F-NS-01
- Size: 5 mg
- Availability: In Stock
Synonyms: Carboxyfluorescein NHS, Carboxyfluorescein SE, NHS carboxyfluorescein.
5(6)-Carboxyfluorescein succinimidyl ester (CFSE) is a green fluorescent dye that emits strong fluorescence light around 515 nm upon excited around 495 nm. CFSE has a reactive NHS ester group that can react with primary amine groups under alkaline conditions (pH 8-10) quickly to form a stable amide bond. Thus CFSE is a widely used reactive dye that can label proteins, antibodies, nuclear acids and many other substrates.
- Form: Solid;
- Appearance: Orange;
- Ex/Em wavelength: 492/517 nm;
- Functional group: NHS;
- Reactive to: Primary amines;
- Store at -20°C;
- Protect from light and moisture.