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AAT Bioquest

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

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Physical properties
Molecular weight807.74
SolventDMSO
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 yield0.691
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
Related products
XFD488 azide *Same Structure to Alexa Fluor™ 488 azide*
XFD488 alkyne *Same Structure to Alexa Fluor™ 488 alkyne*
XFD488 NHS Ester *Same Structure to Alexa Fluor™ 488 NHS Ester*
XFD488 C5 Maleimide *Same Structure to Alexa Fluor™ 488 C5 Maleimide*
XFD350 NHS Ester *Same Structure to Alexa Fluor™ 350 NHS Ester*
XFD532 NHS Ester *Same Structure to Alexa Fluor™ 532 NHS Ester*
XFD594 NHS Ester *Same Structure to Alexa Fluor™ 594 NHS Ester*
XFD350 C5 Maleimide *Same Structure to Alexa Fluor™ 350 C5 Maleimide*
XFD532 C5 Maleimide *Same Structure to Alexa Fluor™ 532 C5 Maleimide*
XFD594 C5 Maleimide *Same Structure to Alexa Fluor™ 594 C5 Maleimide*
XFD488 Hydroxylamine *Same Structure to Alexa Fluor™ 488 Hydroxylamine*
XFD350 goat anti-mouse IgG (H+L) *Cross Adsorbed, XFD350 Same Structure to Alexa Fluor™ 350*
XFD488 goat anti-mouse IgG (H+L) *Cross Adsorbed, XFD488 Same Structure to Alexa Fluor™ 488*
XFD594 goat anti-mouse IgG (H+L) *Cross Adsorbed, XFD594 Same Structure to Alexa Fluor™ 594*
XFD350 goat anti-rabbit IgG (H+L) *Cross Adsorbed, XFD350 Same Structure to Alexa Fluor™ 350*
XFD488 goat anti-rabbit IgG (H+L) *Cross Adsorbed, XFD488 Same Structure to Alexa Fluor™ 488*
XFD594 goat anti-rabbit IgG (H+L) *Cross Adsorbed, XFD594 Same Structure to Alexa Fluor™ 594*
XFD488 amine *Same Structure to Alexa Fluor™ 488 amine*
XFD594 amine *Same Structure to Alexa Fluor™ 594 amine*
XFD350-streptavidin conjugate *XFD350 Same Structure to Alexa Fluor™ 350*
XFD488-streptavidin conjugate *XFD488 Same Structure to Alexa Fluor™ 488*
XFD594-streptavidin conjugate *XFD594 Same Structure to Alexa Fluor™ 594*
XFD350 Phalloidin *XFD350 Same Structure to Alexa Fluor™ 350*
XFD488 Phalloidin *XFD488 Same Structure to Alexa Fluor™ 488*
XFD594 Phalloidin *XFD594 Same Structure to Alexa Fluor™ 594*
XFD488 tyramide reagent *Same Structure to Alexa Fluor™ 488 tyramide*
XFD546 tyramide reagent *Same Structure to Alexa Fluor™ 546 tyramide*
XFD594 tyramide reagent *Same Structure to Alexa Fluor™ 594 tyramide*
XFD488 NHS Ester-UltraPure Grade *XFD488 Same Structure to Alexa Fluor™ 488*
XFD555 NHS Ester *Same Structure to Alexa Fluor™ 555 NHS Ester*
XFD647 NHS Ester *Same Structure to Alexa Fluor™ 647 NHS Ester*
XFD680 NHS Ester *Same Structure to Alexa Fluor™ 680 NHS Ester*
XFD700 NHS Ester *Same Structure to Alexa Fluor™ 700 NHS Ester*
XFD750 NHS Ester *Same Structure to Alexa Fluor™ 750 NHS Ester*
XFD647 C2 Maleimide *Same Structure to Alexa Fluor™ 647 C2 Maleimide*
XFD546 NHS Ester *Same Structure to Alexa Fluor™ 546 NHS Ester*
XFD568 NHS Ester *Same Structure to Alexa Fluor™ 568 NHS Ester*
XFD350 tyramide reagent *Same Structure to Alexa Fluor™ 350 tyramide*
XFD568 tyramide reagent *Same Structure to Alexa Fluor™ 568 tyramide*
XFD488 tetrazine *Same Structure to Alexa Fluor™ 488 tetrazine*
XFD488 aldehyde *Same Structure to Alexa Fluor™ 488 aldehyde*
XFD™488-dUTP *1 mM in Tris Buffer (pH 7.5)*
XFD514 NHS Ester *Same Structure to Alexa Fluor™ 514 NHS Ester*
XFD514 tyramide
XFD532 tyramide
XFD647 Azide
XFD647 Alkyne
XFD488 TCO
XFD532 amine
XFD555 amine
XFD647 amine
XFD750 amine
XFD647 Phalloidin *equivalent to Alexa Fluor® 647 phalloidin*
XFD405 NHS Ester [equivalent to Alexa Fluor™ 405 NHS Ester]
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OverviewpdfSDSpdfProtocol


Molecular weight
807.74
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
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.

Calculators


Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of XFD568 acid *Same Structure to Alexa Fluor™ 568 acid* to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM123.802 µL619.011 µL1.238 mL6.19 mL12.38 mL
5 mM24.76 µL123.802 µL247.604 µL1.238 mL2.476 mL
10 mM12.38 µL61.901 µL123.802 µL619.011 µL1.238 mL

Molarity calculator

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Spectrum


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spectrum

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 yield0.691

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
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Citations


View all 2 citations: Citation Explorer
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
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

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