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6-FAM, SE
6-Carboxyfluorescein, succinimidyl ester; CAS 92557-81-8
6-FAM, SE is the amine-reactive succinimidyl ester of single isomer 6-FAM acid. It is one of the most popular green fluorescent reagents used for labeling nucleotides and nucleic acids. Compared to 5-FAM, 6-FAM is less often used to prepare small molecules.
Chemical structure for 6-FAM, SE [6-Carboxyfluorescein, succinimidyl ester] *CAS 92557-81-8*
Chemical structure for 6-FAM, SE [6-Carboxyfluorescein, succinimidyl ester] *CAS 92557-81-8*
CatalogSize
Price
Quantity
11610 mg
Price
117100 mg
Price
1181 g
Price
 
Physical properties

Molecular weight473.39
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

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure
UNSPSC12171501
CAS92557-81-8
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Page updated on October 13, 2025