XFD647 maleimide C2, XFD647 Same Structure to Alexa Fluor™ 647

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Additional ordering information

Telephone	1-800-990-8053
Fax	1-800-609-2943
Email	sales@aatbio.com
Quotation	Request
International	See distributors
Shipping	Standard overnight for United States, inquire for international

Physical properties

Molecular weight	1095.15
Solvent	DMSO

Spectral properties

Correction Factor (260 nm)	0.00
Correction Factor (280 nm)	0.03
Extinction coefficient (cm ^-1 M ^-1)	239000
Excitation (nm)	604
Emission (nm)	671
Quantum yield	0.33¹

Storage, safety and handling

Intended use	Research Use Only (RUO)
Storage	Freeze (< -15 °C); Minimize light exposure

Direct upgrades

iFluor® 647 maleimide

Overview SDS Protocol

Upgrade: iFluor® 647 maleimide

Molecular weight

1095.15

Correction Factor (260 nm)

0.00

Correction Factor (280 nm)

0.03

Extinction coefficient (cm ^-1 M ^-1)

239000

Excitation (nm)

604

Emission (nm)

671

Quantum yield

0.33¹

XFD647 is manufactured by AAT Bioquest, and it has the same chemical structure of Alexa Fluor® 647 (Alexa Fluor® is the trademark of ThermoFisher). It is a bright red-fluorescent dye optimal for use with the frequency-doubled He-Ne laser line. XFD647 dye is water soluble and pH-insensitive from pH 4 to pH 10. The maleimide of XFD647 is the most convenient thiol-reactive form for conjugating this dye to a protein or antibody.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of XFD647 maleimide *C2, XFD647 Same Structure to Alexa Fluor™ 647* to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

	0.1 mg	0.5 mg	1 mg	5 mg	10 mg
1 mM	91.312 µL	456.558 µL	913.117 µL	4.566 mL	9.131 mL
5 mM	18.262 µL	91.312 µL	182.623 µL	913.117 µL	1.826 mL
10 mM	9.131 µL	45.656 µL	91.312 µL	456.558 µL	913.117 µL

Molarity calculator

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Spectrum

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Spectral properties

Correction Factor (260 nm)	0.00
Correction Factor (280 nm)	0.03
Extinction coefficient (cm ^-1 M ^-1)	239000
Excitation (nm)	604
Emission (nm)	671
Quantum yield	0.33¹

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

Neuroanatomical characteristics of acupoint "Chengshan" (BL 57) in the rat: a cholera toxin subunit B conjugated with Alexa Fluor 488 method study
Authors: Zhu, X. L., Bai, W. Z., Wu, F. D., Jiang, J., Jing, X. H.
Journal: Zhen Ci Yan Jiu (2010): 433-7

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

A mouse monoclonal antibody against Alexa Fluor 647
Authors: Wuethrich, I.; Guillen, E.; Ploegh, H. L.
Journal: Monoclon Antib Immunodiagn Immunother (2014): 109-20

Volume labeling with Alexa Fluor dyes and surface functionalization of highly sensitive fluorescent silica (SiO2) nanoparticles
Authors: Wang, W.; Nallathamby, P. D.; Foster, C. M.; Morrell-Falvey, J. L.; Mortensen, N. P.; Doktycz, M. J.; Gu, B.; Retterer, S. T.
Journal: Nanoscale (2013): 10369-75

Green tea catechins quench the fluorescence of bacteria-conjugated Alexa fluor dyes
Authors: Zhao, L.; Li, W.; Zhu, S.; Tsai, S.; Li, J.; Tracey, K. J.; Wang, P.; Fan, S.; Sama, A. E.; Wang, H.
Journal: Inflamm Allergy Drug Targets (2013): 308-14

Fluorescence of Alexa fluor dye tracks protein folding
Authors: Lindhoud, S.; Westphal, A. H.; Visser, A. J.; Borst, J. W.; van Mierlo, C. P.
Journal: PLoS One (2012): e46838

Visualizing dengue virus through Alexa Fluor labeling
Authors: Zhang S, Tan HC, Ooi EE.
Journal: J Vis Exp. (2011)