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5-FAM
5-Carboxyfluorescein; CAS 76823-03-5
5-FAM is the purified single isomer of carboxyfluorescein. It is one of the most popular green fluorescent reagents used for labeling peptides, proteins and nucleotides. It has been predominantly used to develop a variety of green fluorescent peptides that can be excited with the 488 nm line of the Ar laser. It has also been used to prepare various small fluorescent molecules.
Chemical structure for 5-FAM [5-Carboxyfluorescein] *CAS 76823-03-5*
Chemical structure for 5-FAM [5-Carboxyfluorescein] *CAS 76823-03-5*
CatalogSize
Price
Quantity
103100 mg
Price
1041 g
Price
1055 g
Price
 
Physical properties

Molecular weight376.32
SolventDMSO
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

Certificate of OriginDownload PDF
H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure
UNSPSC12171501
CAS76823-03-5
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Page updated on January 23, 2025