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AAT Bioquest

XFD750 NHS Ester *Same Structure to Alexa Fluor™ 750 NHS Ester*

Product key features

  • Ex/Em: 752/776 nm
  • Extinction coefficient: 240,000 cm-1M-1
  • Reactive Group: NHS ester
  • Easy Conjugation: Efficiently labels primary amines on proteins, ligands, and amine-modified oligonucleotides
  • Bright & Stable: Offers intense, photostable fluorescence for labeling low-abundance targets
  • Water Soluble: Minimizes aggregation, enhancing signal clarity for advanced imaging and live-cell studies

Product description

XFD750 is manufactured by AAT Bioquest, and it has the same chemical structure of Alexa Fluor® 750 (Alexa Fluor® is the trademark of ThermoFisher). XFD750 is a bright red fluorescent dye. It is water soluble and pH-insensitive from pH 4 to pH 10. The NHS ester (or succinimidyl ester) of XFD750 is the most convenient amine-reactive form for conjugating this dye to a protein or antibody.

Spectrum

Product family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Correction Factor (260 nm)Correction Factor (280 nm)
XFD488 NHS Ester *Same Structure to Alexa Fluor™ 488 NHS Ester*499520710000.300.11
XFD350 NHS Ester *Same Structure to Alexa Fluor™ 350 NHS Ester*343441190000.250.19
XFD532 NHS Ester *Same Structure to Alexa Fluor™ 532 NHS Ester*534553810000.240.09
XFD594 NHS Ester *Same Structure to Alexa Fluor™ 594 NHS Ester*590618900000.430.56
XFD555 NHS Ester *Same Structure to Alexa Fluor™ 555 NHS Ester*5535681500000.080.08
XFD647 NHS Ester *Same Structure to Alexa Fluor™ 647 NHS Ester*6506712390000.000.03
XFD680 NHS Ester *Same Structure to Alexa Fluor™ 680 NHS Ester*6817041840000.000.05
XFD700 NHS Ester *Same Structure to Alexa Fluor™ 700 NHS Ester*6967191920000.000.07
XFD546 NHS Ester *Same Structure to Alexa Fluor™ 546 NHS Ester*5615721120000.210.12
XFD568 NHS Ester *Same Structure to Alexa Fluor™ 568 NHS Ester*579603913000.450.46
XFD514 NHS Ester *Same Structure to Alexa Fluor™ 514 NHS Ester*518543800000.310.18
XFD405 NHS Ester [equivalent to Alexa Fluor™ 405 NHS Ester]40142135,0000.230.70
XFD660 NHS Ester [equivalent to Alexa Fluor® 660 NHS Ester]6636911320000.000.10
XFD430 NHS ester43254015,000-0.28
XFD610 NHS Ester611629144,0000.430.44
XFD633 NHS Ester632650159,000-0.55
XFD660 NHS Ester6636911320000.000.10
QXY21 NHS ester [equivalent to QSY-21 NHS ester]--890001-0.32
Cy5DIGE NHS ester65167025000010.020.03
Cy2DIGE NHS ester4925081500000.080.15
Cy3DIGE NHS ester55556915000010.070.073
QXY7 NHS ester [equivalent to QSY-7 NHS ester]--900001-0.22
Cy3B NHS ester56057112000010.0480.069
CypHer5E NHS Ester643660---
CypHer7E NHS Ester748769---
Show More (16)

Citations

View all 6 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
Photobleaching Comparison of R-Phycoerythrin-Streptavidin and Streptavidin-Alexa Fluor 568 in a Breast Cancer Cell Line
Authors: Ostad, S. N., Babaei, S., Bayat, A. A., Mahmoudian, J.
Journal: Monoclon Antib Immunodiagn Immunother (2019): 25-29
Comparison between photostability of Alexa Fluor 448 and Alexa Fluor 647 with conventional dyes FITC and APC by flow cytometry
Authors: Rai, S., Bhardwaj, U., Misra, A., Singh, S., Gupta, R.
Journal: Int J Lab Hematol (2018): e52-e54
Development of new hCaM-Alexa Fluor((R)) biosensors for a wide range of ligands
Authors: Velazquez-Lopez, I., Leon-Cruz, E., Pardo, J. P., Sosa-Peinado, A., Gonzalez-Andrade, M.
Journal: Anal Biochem (2017): 13-22
Neuroanatomical basis of clinical joint application of "Jinggu" (BL 64, a source-acupoint) and "Dazhong" (KI 4, a Luo-acupoint) in the rat: a double-labeling study of cholera toxin subunit B conjugated with Alexa Fluor 488 and 594
Authors: Cui, J. J., Zhu, X. L., Ji, C. F., Jing, X. H., Bai, W. Z.
Journal: Zhen Ci Yan Jiu (2011): 262-7

References

View all 39 references: Citation Explorer
Development of new hCaM-Alexa Fluor(R) biosensors for a wide range of ligands
Authors: Velazquez-Lopez, I.; Leon-Cruz, E.; Pardo, J. P.; Sosa-Peinado, A.; Gonzalez-Andrade, M.
Journal: Anal Biochem (2017): 13-22
Synthetic Protocol for AFCS: A Biologically Active Fluorescent Castasterone Analog Conjugated to an Alexa Fluor 647 Dye
Authors: Winne, J. M.; Irani, N. G.; Van den Begin, J.; Madder, A.
Journal: Methods Mol Biol (2017): 21-Sep
Alteration of AMPA Receptor-Mediated Synaptic Transmission by Alexa Fluor 488 and 594 in Cerebellar Stellate Cells
Authors: Maroteaux, M.; Liu, S. J.
Journal: eNeuro (2016)
Alexa fluor-labeled fluorescent cellulose nanocrystals for bioimaging solid cellulose in spatially structured microenvironments
Authors: Grate, J. W.; Mo, K. F.; Shin, Y.; Vasdekis, A.; Warner, M. G.; Kelly, R. T.; Orr, G.; Hu, D.; Dehoff, K. J.; Brockman, F. J.; Wilkins, M. J.
Journal: Bioconjug Chem (2015): 593-601
In vivo visualization of GL261-luc2 mouse glioma cells by use of Alexa Fluor-labeled TRP-2 antibodies
Authors: Fenton, K. E.; Martirosyan, N. L.; Abdelwahab, M. G.; Coons, S. W.; Preul, M. C.; Scheck, A. C.
Journal: Neurosurg Focus (2014): E12
Page updated on December 17, 2024

Ordering information

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Unit size
1 mg
5 mg
Catalog Number
183971912
Quantity
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Additional ordering information

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Physical properties

Molecular weight

~1300

Solvent

DMSO

Spectral properties

Correction Factor (260 nm)

0.00

Correction Factor (280 nm)

0.04

Extinction coefficient (cm -1 M -1)

240000

Excitation (nm)

752

Emission (nm)

776

Quantum yield

0.121

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