5(6)-Carboxyfluorescein diacetate, NHS ester

Product ID: M0013

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  • Buy 5 for $119.69 each and save 20%

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Cell cycle, cell viability probe useful for cell labeling, especially in flow cytometry.

This labeling reagent for cell cycle analysis and cell viability assessment (amine-reactive) with green emission spectral properties (Abs 488 nm/EM 517 nm) after intracellular removal of acetate esters.

Technical Data
SKU M0013
CAS Number 150347-59-4
Unit Size 25mg
Alternative Names CFSE; 5(6)-Carboxyfluorescein diacetate N-succinimidyl ester
Emission Wavelength 517
Detection Method Fluorescence
Molecular Formula C₂₉H₁₉NO₁₁
Molecular Weight 557.46
Soluble In DMSO, CH3CN(s)
Storage Conditions -20C, Desiccated
Notes Emission of fluorophore released upon esterase activity. Labeling reagent for proteins. Amino groups on proteins react with the NHS-ester to form stable amide linked conjugates. Subsequent esterase activity releases the fluorescent carboxyfluorescein (Abs: 475, Em 517). Ideal reagent for cell cycle analysis, as the dye dilutes with successive rounds of division.

References and Citations


  • Kim J, Cho J, Seidler PM, Kurland NE, Yadavalli VK. (2010) "Investigations of chemical modifications of amino-terminated organic films on silicon substrates and controlled protein immobilization." Langmuir. 26(4):2599-608.
  • Kim J, Seidler P, Wan LS, Fill C. (2009) "Formation, structure, and reactivity of amino-terminated organic films on silicon substrates." Journal of Colloid and Interface Science 329:114–119.
  • Kim J, Seidler P, Wan LS, Fill C. (2008) "Investigations of the effect of curing conditions on the structure and stability of amino-functionalized organic films on silicon substrates by Fourier transform infrared spectroscopy, ellipsometry, and fluorescence microscopy." Surface Science 602: 3323–3330.
  • Hao S, Li P, Zhao J, Hu Y, Hou Y. (2008) "17β-Estradiol Suppresses Cytotoxicity and Proliferative Capacity of Murine Splenic NK1.1+ Cells." Cellular and Molecular Immunology. 5(5):357-364.
  • Hao S, Zhao J, Zhou J, Zhao S, Hu Y, Hou Y. (2007) "Modulation of 17β-estradiol on the number and cytotoxicity of NK cells in vivo related to MCM and activating receptors." Int. Immunopharmacol. 7, 1765–1775.
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  • Weston SA, Parish CR. (1992) "Calcein: a novel marker for lymphocytes which enter lymph nodes." Cytometry 13(7): 739-749.
  • Weston SA, Parish CR. (1990) "New fluorescent dyes for lymphocyte migration studies : Analysis by flow cytometry and fluorescence microscopy." J. Immunol. Meth. 133: 87-97.
  • Nose A, Takeichi M. (1986) "A novel cadherin cell adhesion molecule: its expression patterns associated with implantation and organogenesis of mouse embryos." J Cell. BioL. 103: 2649-2658.
  • Bronner-Fraser M. (1985) "Alterations in neural crest migration by a monoclonal antibody that affects cell adhesion." J Cell. Biol. 101(2): 610-617.
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