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Tide Fluor™ 3WS acid
TF3WS acid; Superior replacement for Cy3
Tide Fluor™ 3WS (TF3WS) family has the spectral properties essentially identical to those of Cy3. Compared to Cy3 probes TF3WS family has better water solubility. It has been used to label the hydrophobic peptides that hasve poor water solubility. Additionally their fluorescence is pH-independent from pH 3 to 11. These characteristics make this new dye family a superior alternative to Cy3. In pairing with our Tide Quencher™ 3 (TQ3), a variety of FRET peptides and nucleotides can be developed for detecting proteases and molecular beacons with enhanced sensitivity and stability.
<p>With EDAC or other equivalent activating coupling agents, fluorescent dyes can react readily with the primary amines (R-NH<sub>2</sub>) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The resulting dye conjugates are quite stable.</p>
<p>With EDAC or other equivalent activating coupling agents, fluorescent dyes can react readily with the primary amines (R-NH<sub>2</sub>) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The resulting dye conjugates are quite stable.</p>
CatalogSize
Price
Quantity
234510 mg
Price
 
Physical properties

Molecular weight838.89
SolventDMSO
Spectral properties

Correction factor (280 nm)0.079
Extinction coefficient (cm -1 M -1)
150000
Excitation (nm)550
Emission (nm)563
Quantum yield
0.15
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 13, 2025