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Tide Fluor™ 4 amine
TF4 amine; Superior replacement for ROX and Texas Red
TF4 is designed to be a superior fluorophore alternative to ROX and Texas Red®. TF4 has (a). stronger fluorescence intensity; (b). higher conjugation yield; and (c). longer shelf life. Additionally their fluorescence is pH-independent from pH 3 to 11. These characteristics make this new dye family a superior alternative to ROX and Texas Red®. In pairing with our Tide Quencher™ 4 (TQ4), a variety of FRET peptides and nucleotides can be developed for detecting proteases and molecular beacons with enhanced sensitivity and stability. This TF4 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
22861 mg
Price
 
Physical properties

Molecular weight946.81
SolventDMSO
Spectral properties

Correction factor (280 nm)0.436
Extinction coefficient (cm -1 M -1)
90000
Excitation (nm)577
Emission (nm)602
Quantum yield
0.77
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