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Tide Fluor™ 2, succinimidyl ester
TF2 SE; Superior replacement for fluorescein
Tide Fluor™ 2 (TF2) family has the spectral properties similar to those of fluoresceins and Alexa Fluor® 488 (Alexa Fluor® is the trademark of Invitrogen). Compared to fluoresceins TF2 family has much stronger fluorescence and higher photostability. Additionally their fluorescence is pH-independent from pH 3 to 11. These characteristics make this new dye family a superior alternative to fluoresceins. TF2-labeled peptides and nucleotides exhibit much stronger fluorescence and higher photostability than the ones labeled with FITC or FAM. In pairing with our Tide Quencher™ 2 (TQ2), a variety of FRET peptides and nucleotides can be developed for detecting proteases and molecular beacons with enhanced sensitivity and stability. In addition, TF2 has spectral properties, pH dependence and photostability similar to Alexa Fluor® 488, making them excellent replacement for the expensive Alexa Fluor® 488.
Photostability analysis of Tide Fluor™ 2 and FITC.
Photostability analysis of Tide Fluor™ 2 and FITC.
CatalogSize
Price
Quantity
22485 mg
Price
 
Physical properties

Molecular weight584.58
SolventDMSO
Spectral properties

Correction factor (280 nm)0.09
Extinction coefficient (cm -1 M -1)
75000
Excitation (nm)503
Emission (nm)525
Quantum yield
0.9
1
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
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Page updated on September 25, 2025