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Cyanine 3 azide [equivalent to Cy3® azide]

A variety of cyanine 3 (Cy3®) 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. Cy3® dyes have enhanced fluorescence upon binding to proteins. Cy3® azide selectively reacts with alkyne groups. Cy3® is the trademark of GE Healthcare.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of Cyanine 3 azide [equivalent to Cy3® azide] to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM123.019 µL615.097 µL1.23 mL6.151 mL12.302 mL
5 mM24.604 µL123.019 µL246.039 µL1.23 mL2.46 mL
10 mM12.302 µL61.51 µL123.019 µL615.097 µL1.23 mL

Molarity calculator

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

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Spectrum

Product family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Quantum yieldCorrection Factor (260 nm)Correction Factor (280 nm)
Cyanine 3 bisacid [equivalent to Cy3® bisacid]55556915000010.1510.070.073
Cyanine 3 monoacid [equivalent to Cy3® acid]55556915000010.1510.070.073
Cyanine 5 azide [equivalent to Cy5® azide]65167025000010.271, 0.420.020.03
Cyanine 7 azide [equivalent to Cy7® azide]7567792500000.30.050.036
Cyanine-3- dUTP [Cy3-dUTP] *1 mM in TE Buffer (pH 7.5)*55556915000010.1510.070.073

Citations

View all 14 citations: Citation Explorer
Competitive binding-mediated mesoscale protein-protein interactions direct microtubule growth
Authors: Wei, Zhiyi and Jia, Xuanyan and Lin, Leishu and Guo, Siqi and Zhou, Lulu and Jin, Gaowei and Dong, Jiayuan and Xiao, Jinman and Xie, Xingqiao and Li, Yiming and others,
Journal: (2024)
Caveat fluorophore: an insiders’ guide to small-molecule fluorescent labels
Authors: Grimm, Jonathan B and Lavis, Luke D
Journal: Nature methods (2022): 149--158
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)

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 October 28, 2024

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Physical properties

Molecular weight

812.88

Solvent

DMSO

Spectral properties

Correction Factor (260 nm)

0.07

Correction Factor (280 nm)

0.073

Extinction coefficient (cm -1 M -1)

1500001

Excitation (nm)

555

Emission (nm)

569

Quantum yield

0.151

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