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5(6)-FAM, SE [5-(and-6)-Carboxyfluorescein, succinimidyl ester] *CAS 117548-22-8*

Carboxyfluorescein (commonly called FAM) and its amine-reactive succinimidyl esters are favored over FITC in bioconjugations. FAM reagents give carboxamides that are more resistant to hydrolysis. In addition, FAM reagents require less stringent conjugation conditions and give better conjugation yields, and the resulted conjugates have superior stability. FITC-labeled nucleotides and peptides tend to deteriorate more quickly than the corresponding FAM conjugates. We found that FAM reagents can be used to substitute FITC reagents in most biological applications.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of 5(6)-FAM, SE [5-(and-6)-Carboxyfluorescein, succinimidyl ester] *CAS 117548-22-8* to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM211.242 µL1.056 mL2.112 mL10.562 mL21.124 mL
5 mM42.248 µL211.242 µL422.485 µL2.112 mL4.225 mL
10 mM21.124 µL105.621 µL211.242 µL1.056 mL2.112 mL

Molarity calculator

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Spectrum

Product family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Correction Factor (260 nm)Correction Factor (280 nm)
5(6)-FAM ethylenediamine493517830000.320.178
5(6)-FAM cadaverine493517830000.320.178
5(6)-CR6G, SE [5-(and 6)-Carboxyrhodamine 6G, succinimidyl ester] *Mixed isomers*522546940000.240.214
5(6)-TAMRA, SE [5-(and-6)-Carboxytetramethylrhodamine, succinimidyl ester] *CAS 246256-50-8*552578900000.320.178
5(6)-ROX, SE [5-(and-6)-Carboxy-X-rhodamine, succinimidyl ester] *Mixed isomers*57860482000-0.168

Citations

View all 3 citations: Citation Explorer
Multicellular Vascularized Engineered Tissues through User-Programmable Biomaterial Photodegradation
Authors: Arakawa, Christopher K and Badeau, Barry A and Zheng, Ying and DeForest, Cole A
Journal: Advanced Materials (2017)
Green tea inhibited the elimination of nephro-cardiovascular toxins and deteriorated the renal function in rats with renal failure
Authors: Peng, Yu-Hsuan and Sweet, Douglas H and Lin, Shiuan-Pey and Yu, Chung-Ping and Chao, Pei-Dawn Lee and Hou, Yu-Chi
Journal: Scientific reports (2015)
Advances in Quantitative FRET-Based Methods for Studying Nucleic Acids
Authors: Preus, Søren and Wilhelmsson, L Marcus
Journal: ChemBioChem (2012): 1990--2001

References

View all 137 references: Citation Explorer
Carboxyfluorescein leakage from poly(ethylene glycol)-grafted liposomes induced by the interaction with serum
Authors: Hashizaki K, Taguchi H, Sakai H, Abe M, Saito Y, Ogawa N.
Journal: Chem Pharm Bull (Tokyo) (2006): 80
Quantifying lymphocyte kinetics in vivo using carboxyfluorescein diacetate succinimidyl ester (cfse)
Authors: Asquith B, Debacq C, Florins A, Gillet N, Sanchez-Alcaraz T, Mosley A, Willems L.
Journal: Proc Biol Sci (2006): 1165
Evidence for dimer formation by an amphiphilic heptapeptide that mediates chloride and carboxyfluorescein release from liposomes
Authors: Pajewski R, Ferdani R, Pajewska J, Djedovic N, Schlesinger PH, Gokel GW.
Journal: Org Biomol Chem (2005): 619
Carboxyfluorescein diacetate succinimidyl ester fluorescent dye for cell labeling
Authors: Wang XQ, Duan XM, Liu LH, Fang YQ, Tan Y.
Journal: Acta Biochim Biophys Sin (Shanghai) (2005): 379
Low incidence of acute rejection after living-donor liver transplantation: Immunologic analyses by mixed lymphocyte reaction using a carboxyfluorescein diacetate succinimidyl ester labeling technique
Authors: Tanaka Y, Ohdan H, Onoe T, Mitsuta H, Tashiro H, Itamoto T, Asahara T.
Journal: Transplantation (2005): 1262
Page updated on October 30, 2024

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Physical properties

Molecular weight

473.39

Solvent

DMSO

Spectral properties

Correction Factor (260 nm)

0.32

Correction Factor (280 nm)

0.178

Extinction coefficient (cm -1 M -1)

83000

Excitation (nm)

493

Emission (nm)

517

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22

Storage

Freeze (< -15 °C); Minimize light exposure
UNSPSC12171501

CAS

117548-22-8