Cyanine 7 alkyne [equivalent to Cy7® alkyne]

A variety of cyanine 7 (Cy7®) dyes has been used to label biological molecules for fluorescence imaging and other fluorescence-based biochemical analysis. They are widely used for labeling peptides, proteins and oligos etc. Cy7® dye conjugates are one type of the most common near infrared red fluorophores used in in vivo imaging applications. Cy7® alkyne selectively reacts with azide groups. Cy7® is the trademark of GE Healthcare.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of Cyanine 7 alkyne [equivalent to Cy7® 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	119.914 µL	599.571 µL	1.199 mL	5.996 mL	11.991 mL
5 mM	23.983 µL	119.914 µL	239.828 µL	1.199 mL	2.398 mL
10 mM	11.991 µL	59.957 µL	119.914 µL	599.571 µL	1.199 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

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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 (482 nm)	Correction Factor (565 nm)	Correction Factor (650 nm)
Cyanine 3 alkyne [equivalent to Cy3® alkyne]	555	569	150000¹	0.15¹	0.07	0.073	-	-	-
Cyanine 5 alkyne [equivalent to Cy5® alkyne]	651	670	250000¹	0.27¹, 0.4²	0.02	0.03	0.009	0.09	-
Cyanine 7 monoacid [equivalent to Cy7® acid]	756	779	250000	0.3	0.05	0.036	0.0005	0.0193	0.165
Cyanine 7 bisacid [equivalent to Cy7® bisacid]	756	779	250000	0.3	0.05	0.036	0.0005	0.0193	0.165

Citations

View all 12 citations: Citation Explorer

Thermo-sensitive hydrogel PLGA-PEG-PLGA as a vaccine delivery system for intramuscular immunization
Authors: Wang, Xiaoyan and Zhang, Yu and Xue, Wei and Wang, Hong and Qiu, Xiaozhong and Liu, Zonghua
Journal: Journal of Biomaterials Applications (2017): 923--932

Cube-shaped theranostic paclitaxel prodrug nanocrystals with surface functionalization of SPC and MPEG-DSPE for imaging and chemotherapy
Authors: Guo, Fuqiang and Shang, Jiajia and Zhao, Hai and Lai, Kangrong and Li, Yang and Fan, Zhongxiong and Hou, Zhenqing and Su, Guanghao
Journal: Colloids and Surfaces B: Biointerfaces (2017)

Light/magnetic hyperthermia triggered drug released from multi-functional thermo-sensitive magnetoliposomes for precise cancer synergetic theranostics
Authors: Guo, Yuxin and Zhang, Yang and Ma, Jinyuan and Li, Qi and Li, Yang and Zhou, Xinyi and Zhao, Dan and Song, Hua and Chen, Qing and Zhu, Xuan
Journal: Journal of Controlled Release (2017)

Carboxymethyl Dextran-Stabilized Polyethylenimine-Poly (epsilon-caprolactone) Nanoparticles-Mediated Modulation of MicroRNA-34a Expression via Small-Molecule Modulator for Hepatocellular Carcinoma Therapy
Authors: Deng, Xiongwei and Yin, Zhaoxia and Zhou, Zhixiang and Wang, Yihui and Zhang, Fang and Hu, Qin and Yang, Yishu and Lu, Jianqing and Wu, Yan and Sheng, Wang and others, undefined
Journal: ACS applied materials & interfaces (2016): 17068--17079

Affinity-Controlled Protein Encapsulation into Sub-30 nm Telodendrimer Nanocarriers by Multivalent and Synergistic Interactions
Authors: Wang, Xu and Shi, Changying and Zhang, Li and Bodman, Alexa and Guo, D and an , undefined and Wang, Lili and Hall, Walter A and Wilkens, Stephan and Luo, Juntao
Journal: Biomaterials (2016)

References

View all 21 references: Citation Explorer

Excitation of Cy5 in self-assembled lipid bilayers using optical microresonators
Authors: Freeman LM, Li S, Dayani Y, Choi HS, Malmstadt N, Armani AM.
Journal: Appl Phys Lett (2011): 143703

Theranostic cRGD-BioShuttle Constructs Containing Temozolomide- and Cy7 For NIR-Imaging and Therapy
Authors: Wiessler M, Hennrich U, Pipkorn R, Waldeck W, Cao L, Peter J, Ehemann V, Semmler W, Lammers T, Braun K.
Journal: Theranostics (2011): 381

Rational approach to select small peptide molecular probes labeled with fluorescent cyanine dyes for in vivo optical imaging
Authors: Berezin MY, Guo K, Akers W, Livingston J, Solomon M, Lee H, Liang K, Agee A, Achilefu S.
Journal: Biochemistry (2011): 2691

In vivo detection of embryonic stem cell-derived cardiovascular progenitor cells using Cy3-labeled Gadofluorine M in murine myocardium
Authors: Adler ED, Bystrup A, Briley-Saebo KC, Mani V, Young W, Giovanonne S, Altman P, Kattman SJ, Frank JA, Weinmann HJ, Keller GM, Fayad ZA.
Journal: JACC Cardiovasc Imaging (2009): 1114

Quantitative proteomics by fluorescent labeling of cysteine residues using a set of two cyanine-based or three rhodamine-based dyes
Authors: Volke D, Hoffmann R.
Journal: Electrophoresis (2008): 4516

Page updated on December 17, 2024

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Physical properties

Molecular weight	833.93
Solvent	DMSO

Spectral properties

Correction Factor (260 nm)	0.05
Correction Factor (280 nm)	0.036
Correction Factor (482 nm)	0.0005
Correction Factor (565 nm)	0.0193
Correction Factor (650 nm)	0.165
Extinction coefficient (cm ^-1 M ^-1)	250000
Excitation (nm)	756
Emission (nm)	779
Quantum yield	0.3

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