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Tide Fluor™ 5WS amine
TF5WS amine; Superior replacement for Cy5
Tide Fluor™ 5WS (TF5WS) family has the spectral properties essentially identical to those of Cy5. Compared to Cy5 probes TF5WS 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 Cy5. TF5WS-labeled peptides and nucleotides exhibit much stronger fluorescence and higher photostability than the ones labeled with Cy5. In pairing with our Tide Quencher™ 5WS (TQ5WS), a variety of FRET peptides and nucleotides can be developed for detecting proteases and molecular beacons with enhanced sensitivity and stability. This TF5WS product is primarily used for labeling the small molecules that contain a carbonyl group.
<p>Fluorescent dye amines are the most popular tool for conjugating dyes to a target compound with a carbonyl group (e.g., aldehyde, carboxylic acid or activated carboxy group such as NHS ester).</p>
<p>Fluorescent dye amines are the most popular tool for conjugating dyes to a target compound with a carbonyl group (e.g., aldehyde, carboxylic acid or activated carboxy group such as NHS ester).</p>
CatalogSize
Price
Quantity
22791 mg
Price
 
Physical properties

Molecular weight1021.03
SolventDMSO
Spectral properties

Correction factor (280 nm)0.027
Extinction coefficient (cm -1 M -1)
250000
Excitation (nm)649
Emission (nm)663
Quantum yield
0.27
1
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
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Page updated on October 12, 2025