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Tide Fluor™ 7WS amine
TF7WS amine; Superior replacement for Cy7
Tide Fluor™ 7WS (TF7WS) family has the spectral properties similar to those of Cy7, IRDye 800 and Alexa Fluor 750. Their fluorescence is pH-independent from pH 3 to 11. These characteristics make this new dye family more robust to pH-sensitive assays. In some cases TF7-labeled peptides and nucleotides exhibit stronger fluorescence and higher photostability than the ones labeled with Cy7, IRDye 800 and Alexa Fluor 750. In pairing with our Tide Quencher™ 7WS (TQ7WS), a variety of FRET peptides and nucleotides can be developed for detecting proteases and molecular beacons with enhanced sensitivity and stability. This TF7WS 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
23311 mg
Price
 
Physical properties

Molecular weight1047.07
SolventDMSO
Spectral properties

Correction factor (280 nm)0.049
Extinction coefficient (cm -1 M -1)
275000
Excitation (nm)756
Emission (nm)780
Quantum yield
0.3
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