XFD488 alkyne Same Structure to Alexa Fluor™ 488 alkyne

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Shipping	Standard overnight for United States, inquire for international

Physical properties

Molecular weight	773.92
Solvent	DMSO

Spectral properties

Correction Factor (260 nm)	0.30
Correction Factor (280 nm)	0.11
Extinction coefficient (cm ^-1 M ^-1)	71000
Excitation (nm)	499
Emission (nm)	520
Quantum yield	0.92¹

Storage, safety and handling

H-phrase	H303, H313, H333
Hazard symbol	XN
Intended use	Research Use Only (RUO)
R-phrase	R20, R21, R22
Storage	Freeze (< -15 °C); Minimize light exposure
UNSPSC	12171501

Direct upgrades

Alternative formats

XFD488 amine *Same Structure to Alexa Fluor™ 488 amine*

XFD488 acid *Same Structure to Alexa Fluor™ 488 acid*

XFD488 azide *Same Structure to Alexa Fluor™ 488 azide*

Overview SDS Protocol

Upgrade: iFluor® 488 alkyne

Molecular weight

773.92

Correction Factor (260 nm)

0.30

Correction Factor (280 nm)

0.11

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

71000

Excitation (nm)

499

Emission (nm)

520

Quantum yield

0.92¹

The fluorescent dye alkynes react with azides via a copper-catalyzed click reaction (CuAAC). This click chemistry is increasingly being used in a variety of biological applications. XFD488 alkyne has the same chemical structure to Alexa Fluor® 488 alkyne (Alexa Fluor® is the Trademark of ThermoFisher Scientific). XFD488 alkyne is reactive with terminal alkynes via a copper-catalyzed click reaction as a bio-orthogonal or biologically unique hapten for use in applications requiring signal amplification.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of XFD488 alkyne *Same Structure to Alexa Fluor™ 488 alkyne* 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	129.212 µL	646.062 µL	1.292 mL	6.461 mL	12.921 mL
5 mM	25.842 µL	129.212 µL	258.425 µL	1.292 mL	2.584 mL
10 mM	12.921 µL	64.606 µL	129.212 µL	646.062 µL	1.292 mL

Molarity calculator

Enter any two values (mass, volume, concentration) to calculate the third.

Mass (Calculate)		Molecular weight		Volume (Calculate)		Concentration (Calculate)		Moles
	/		=		x		=

Spectrum

Open in Advanced Spectrum Viewer

Spectral properties

Correction Factor (260 nm)	0.30
Correction Factor (280 nm)	0.11
Extinction coefficient (cm ^-1 M ^-1)	71000
Excitation (nm)	499
Emission (nm)	520
Quantum yield	0.92¹

Product Family

Name	Excitation (nm)	Emission (nm)	Extinction coefficient (cm ^-1 M ^-1)	Correction Factor (280 nm)
XFD488 Hydroxylamine Same Structure to Alexa Fluor™ 488 Hydroxylamine	499	520	71000	0.11
XFD488 Phalloidin XFD488 Same Structure to Alexa Fluor™ 488	499	520	73000	0.11
XFD488 tetrazine Same Structure to Alexa Fluor™ 488 tetrazine	499	520	71000	0.11
XFD488 aldehyde Same Structure to Alexa Fluor™ 488 aldehyde	499	520	71000	0.11
XFD647 Alkyne	650	671	270000	0.03
XFD488 TCO	499	520	73000	0.11
AMCA Alkyne	346	434	19000	0.153
ICG alkyne	789	813	230000	0.076
Cy3B alkyne	560	571	120000¹	0.069

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)