logo
Products
Technologies
Applications
Services
Resources
Selection Guides
About
Tide Fluor™ 2WS acid
TF2WS acid; Superior replacement for FITC
Tide Fluor™ 2WS (TF2WS) family has the spectral properties similar to those of fluorescein, DyLight 488 and Alexa Fluor 488. Compared to fluorescein probes TF2WS family has better water solubility. It has been used to label the hydrophobic peptides that have 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 fluorescein. 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.
<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
234810 mg
Price
 
Physical properties

Molecular weight645.61
SolventDMSO
Spectral properties

Correction factor (280 nm)0.11
Extinction coefficient (cm -1 M -1)
75000
Excitation (nm)491
Emission (nm)516
Quantum yield
0.9
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
Contact us

Telephone
Fax
Emailsales@aatbio.com
InternationalSee distributors
Bulk requestInquire
Custom sizeInquire
Technical SupportContact us
Request quotationRequest
Purchase orderSend to sales@aatbio.com
ShippingStandard overnight for United States, inquire for international
Page updated on October 13, 2025