iFluor® 647 alkyne

Click chemistry is a method for attaching a probe or substrate of interest to a specific biomolecule, a process called bioconjugation. The possibility of attaching fluorophores and other reporter molecules has made click chemistry a very powerful tool for identifying, locating, and characterizing both old and new biomolecules. The classic click reaction is the copper-catalyzed reaction of an azide with an alkyne to form a 5-membered heteroatom ring, this reaction is commonly called Cu(I)-Catalyzed Azide-Alkyne Cycloaddition (CuAAC).

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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	901.98
Solvent	DMSO

Spectral properties

Correction Factor (260 nm)	0.03
Correction Factor (280 nm)	0.03
Correction Factor (656 nm)	0.0793
Extinction coefficient (cm ^-1 M ^-1)	250000¹
Excitation (nm)	656
Emission (nm)	670
Quantum yield	0.25¹

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

Alternative formats

iFluor® 647 succinimidyl ester

iFluor® 647 amine

iFluor® 647 maleimide

iFluor® 647 azide

iFluor® 647 hydrazide

Overview SDS Protocol

Molecular weight

901.98

Correction Factor (260 nm)

0.03

Correction Factor (280 nm)

0.03

Correction Factor (656 nm)

0.0793

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

250000¹

Excitation (nm)

656

Emission (nm)

670

Quantum yield

0.25¹

AAT Bioquest's iFluor® dyes are optimized for labeling proteins, particularly antibodies. These dyes are bright, photostable, and have minimal quenching on proteins. They can be well excited by the major laser lines of fluorescence instruments (e.g., 350, 405, 488, 555, and 633 nm). iFluor® 647 dyes have fluorescence excitation and emission maxima of ~656 nm and ~670 nm respectively. The iFluor® 647 family has spectral properties essentially identical to those of Cy5® (Cy5® is the trademark of GE Healthcare). Compared to Cy5® probes, iFluor® 647 reagents have much stronger fluorescence and higher photostability. Their fluorescence is pH-independent from pH 3 to 11. These spectral characteristics make this new dye family an excellent alternative to Cy5® and Alexa Fluor® 647 (Cy5® and Alexa Fluor® are the trademarks of Invitrogen and GE Health Care). iFluor® 647 alkyne is reasonably stable and shows good reactivity and selectivity with the azido group.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of iFluor® 647 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	110.867 µL	554.336 µL	1.109 mL	5.543 mL	11.087 mL
5 mM	22.173 µL	110.867 µL	221.734 µL	1.109 mL	2.217 mL
10 mM	11.087 µL	55.434 µL	110.867 µL	554.336 µL	1.109 mL

Molarity calculator

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

Mass (Calculate)		Molecular weight		Volume (Calculate)		Concentration (Calculate)		Moles
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Spectrum

Open in Advanced Spectrum Viewer

Spectral properties

Correction Factor (260 nm)	0.03
Correction Factor (280 nm)	0.03
Correction Factor (656 nm)	0.0793
Extinction coefficient (cm ^-1 M ^-1)	250000¹
Excitation (nm)	656
Emission (nm)	670
Quantum yield	0.25¹

Product Family

Name	Excitation (nm)	Emission (nm)	Extinction coefficient (cm ^-1 M ^-1)	Quantum yield	Correction Factor (260 nm)	Correction Factor (280 nm)	Correction Factor (656 nm)
iFluor® 555 alkyne	557	570	100000¹	0.64¹	0.23	0.14	-
iFluor® 488 alkyne	491	516	75000¹	0.9¹	0.21	0.11	-
iFluor® 647 Styramide Superior Replacement for Alexa Fluor 647 tyramide	656	670	250000¹	0.25¹	0.03	0.03	0.0793
iFluor® 647 Tyramide	656	670	250000¹	0.25¹	0.03	0.03	0.0793
iFluor® 647 TCO	656	670	250000¹	0.25¹	0.03	0.03	0.0793
iFluor® 647 Tetrazine	656	670	250000¹	0.25¹	0.03	0.03	0.0793

Images

Figure 1. Click chemistry is a method for attaching a probe or substrate of interest to a specific biomolecule, a process called bioconjugation. The possibility of attaching fluorophores and other reporter molecules has made click chemistry a very powerful tool for identifying, locating, and characterizing both old and new biomolecules. The classic click reaction is the copper-catalyzed reaction of an azide with an alkyne to form a 5-membered heteroatom ring, this reaction is commonly called Cu(I)-Catalyzed Azide-Alkyne Cycloaddition (CuAAC).

Citations

View all 15 citations: Citation Explorer

Inhibition of MYC suppresses programmed cell death ligand-1 expression and enhances immunotherapy in triple-negative breast cancer
Authors: Li, Xintong and Tang, Lin and Chen, Qin and Cheng, Xumin and Liu, Yiqiu and Wang, Cenzhu and Zhu, Chengjun and Xu, Kun and Gao, Fangyan and Huang, Jinyi and others,
Journal: Chinese Medical Journal (2022): 10--1097

Immune-regulating bimetallic metal-organic framework nanoparticles designed for cancer immunotherapy
Authors: Dai, Zan and Wang, Qiaoyun and Tang, Jie and Wu, Min and Li, Haoze and Yang, Yannan and Zhen, Xu and Yu, Chengzhong
Journal: Biomaterials (2022): 121261

Site-specific labeling and functional efficiencies of human fibroblast growth Factor-1 with a range of fluorescent Dyes in the flexible N-Terminal region and a rigid $\beta$-turn region
Authors: Mohale, Mamello and Gundampati, Ravi Kumar and Kumar, Thallapuranam Krishnaswamy Suresh and Heyes, Colin D
Journal: Analytical biochemistry (2022): 114524

Poly ADP-ribosylation of SET8 leads to aberrant H4K20 methylation in mammalian nuclear genome
Authors: Est{\`e}ve, Pierre-Olivier and Sen, Sagnik and Vishnu, Udayakumar S and Ruse, Cristian and Chin, Hang Gyeong and Pradhan, Sriharsa
Journal: Communications biology (2022): 1--18

The PARP1 Inhibitor Niraparib Represses DNA Damage Repair and Synergizes with Temozolomide for Antimyeloma Effects
Authors: Shen, Hong-Yuan and Tang, Hai-Long and Zheng, Yan-Hua and Feng, Juan and Dong, Bao-Xia and Chen, Xie-Qun
Journal: Journal of Oncology (2022)

A Substance P (SP)/Neurokinin-1 Receptor Axis Promotes Perineural Invasion of Pancreatic Cancer and Is Affected by lncRNA LOC389641
Authors: Ji, Tengfei and Ma, Keqiang and Wu, Hongsheng and Cao, Tiansheng
Journal: Journal of Immunology Research (2022)

Digital Light Processing 3D Printing of Gyroid Scaffold with Isosorbide-Based Photopolymer for Bone Tissue Engineering
Authors: Verisqa, Fiona and Cha, Jae-Ryung and Nguyen, Linh and Kim, Hae-Won and Knowles, Jonathan C
Journal: Biomolecules (2022): 1692

SP/NK-1R Axis Promotes Perineural Invasion of Pancreatic Cancer and is Affected by lncRNA LOC389641
Authors: Ji, Tengfei and Ma, Keqiang and Wu, Hongsheng and Cao, Tiansheng
Journal: (2021)

Efferocytosis induces macrophage proliferation to help resolve tissue injury
Authors: Gerlach, Brennan D and Ampomah, Patrick B and Yurdagul Jr, Arif and Liu, Chuang and Lauring, Max C and Wang, Xiaobo and Kasikara, Canan and Kong, Na and Shi, Jinjun and Tao, Wei and others,
Journal: Cell metabolism (2021): 2445--2463

Enrichment of NPC1-deficient cells with the lipid LBPA stimulates autophagy, improves lysosomal function, and reduces cholesterol storage
Authors: Ilnytska, Olga and Lai, Kimberly and Gorshkov, Kirill and Schultz, Mark L and Tran, Bruce Nguyen and Jeziorek, Maciej and Kunkel, Thaddeus J and Azaria, Ruth D and McLoughlin, Hayley S and Waghalter, Miriam and others,
Journal: Journal of Biological Chemistry (2021)

References

View all 49 references: Citation Explorer

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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
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Journal: Zhen Ci Yan Jiu (2011): 262

Simultaneous detection of virulence factors from a colony in diarrheagenic Escherichia coli by a multiplex PCR assay with Alexa Fluor-labeled primers
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Journal: J Microbiol Methods (2011): 119

Alexa Fluor 546-ArIB[V11L;V16A] is a potent ligand for selectively labeling alpha 7 nicotinic acetylcholine receptors
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Journal: J Neurochem (2010): 994

Asymmetric trimethine 3H-indocyanine dyes: efficient synthesis and protein labeling
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Novel Alexa Fluor-488 labeled antagonist of the A(2A) adenosine receptor: Application to a fluorescence polarization-based receptor binding assay
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