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AAT Bioquest

XFD568 acid *Same Structure to Alexa Fluor™ 568 acid*

XFD568 is manufactured by AAT Bioquest, and it has the same chemical structure of Alexa Fluor® 568 (Alexa Fluor® is the trademark of ThermoFisher). It is a bright red-fluorescent dye optimal for use with the 568 nm laser line. XFD568 dye is water soluble and pH-insensitive from pH 4 to pH 10. XFD568 acid is the most economic amine-reactive form for conjugating Alexa Fluor® 568 fluorophore to a peptide.

Spectrum

Product family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Quantum yieldCorrection Factor (260 nm)Correction Factor (280 nm)
XFD532 acid *Same Structure to Alexa Fluor™ 532 acid*534553810000.6110.240.09
XFD488 acid *Same Structure to Alexa Fluor™ 488 acid*499520710000.9210.300.11
XFD350 acid *Same Structure to Alexa Fluor™ 350 acid*34344119000-0.250.19
XFD546 acid *Same Structure to Alexa Fluor™ 546 acid*5615721120000.7910.210.12
XFD514 acid51854380000-0.310.18
XFD568 amine579603880000.6910.450.46
XFD555 acid5535681550000.110.080.08
XFD647 acid6506712700000.331-0.03
XFD750 acid7527762900000.121-0.04
XFD700 acid6967192050000.251-0.07
ICG acid789813230000--0.076
Cy3NS acid *CAS 1032678-01-5*55556915000010.1510.070.073
Cy5NS acid65167025000010.271, 0.420.020.03
Cy7NS acid7567792500000.30.050.036
AMCA acid *CAS#: 106562-32-7*34643419000--0.153
EDANS acid [5-((2-Aminoethyl)amino)naphthalene-1-sulfonic acid] *CAS 50402-56-7*3364555900--0.107
EDANS acid [5-((2-Aminoethyl)amino)naphthalene-1-sulfonic acid]3364555900--0.107
DABCYL acid [4-((4-(Dimethylamino)phenyl)azo)benzoic acid] *CAS 6268-49-1*-----0.516
BCECF acid *CAS#: 85138-49-4*50452790000---
Cy3B acid56057112000010.5810.0480.069
QXY7 acid [equivalent to QSY-7 acid]--900001--0.22
OG514 acid [equivalent to Oregon Green® 514 carboxylic acid]51353385000--0.19
Show More (13)

Citations

View all 2 citations: Citation Explorer
Observing the Reversible Single Molecule Electrochemistry of Alexa Fluor 647 Dyes by Total Internal Reflection Fluorescence Microscopy
Authors: Fan, S., Webb, J. E. A., Yang, Y., Nieves, D. J., Goncales, V. R., Tran, J., Hilzenrat, G., Kahram, M., Tilley, R. D., Gaus, K., Gooding, J. J.
Journal: Angew Chem Int Ed Engl (2019): 14495-14498
A combined solvatochromic shift and TDDFT study probing solute-solvent interactions of blue fluorescent Alexa Fluor 350 dye: Evaluation of ground and excited state dipole moments
Authors: Patil, M. K., Kotresh, M. G., Inamdar, S. R.
Journal: Spectrochim Acta A Mol Biomol Spectrosc (2019): 142-152

References

View all 1 references: Citation Explorer
Quantitative comparison of long-wavelength Alexa Fluor dyes to Cy dyes: fluorescence of the dyes and their bioconjugates
Authors: Berlier JE, Rothe A, Buller G, Bradford J, Gray DR, Filanoski BJ, Telford WG, Yue S, Liu J, Cheung CY, Chang W, Hirsch JD, Beechem JM, Haugl and RP., undefined
Journal: J Histochem Cytochem (2003): 1699
Page updated on September 12, 2024

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Catalog Number1792
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Physical properties

Molecular weight

807.74

Solvent

DMSO

Spectral properties

Correction Factor (260 nm)

0.45

Correction Factor (280 nm)

0.46

Extinction coefficient (cm -1 M -1)

91300

Excitation (nm)

579

Emission (nm)

603

Quantum yield

0.691

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22

Storage

Freeze (< -15 °C); Minimize light exposure
UNSPSC12171501