sulfo-Cyanine5 NHS ester

NHS esters Protein labeling sulfo-Cyanine5
Cat. # Quantity Price Lead time
13320 1 mg $91 in stock
23320 5 mg $119 in stock
43320 25 mg $345 in stock
53320 50 mg $557 in stock
63320 100 mg $890 in stock
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Water-soluble Cyanine5 succinimidyl ester (SE), an equivalent of Cy5® NHS ester, for the labeling of various amine-containing molecules in aqueous phase without use of any organic co-solvent. This product is, therefore, particularly useful for the labeling of proteins that denature in the presence of organic co-solvents, as well as for proteins with low solubility.

sulfo-Cyanine 5 is an analog of Cy5®, one of the most popular fluorophores, which is compatible with various equipment such as plate readers, microscopes, and imagers.

This dye is highly hydrophilic and water-soluble. A non-sulfonated analog is also available.

Can be used as a replacement for Cy5®, DyLight 649 for all applications.

sulfo-Cyanine5 NHS ester, 63320
sulfo-Cyanine5 NHS ester, 63320
sulfo-Cyanine5 NHS ester, 63320
sulfo-Cyanine5 NHS ester structure
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sulfo-Cyanine5 absorbance and emission spectra

sulfo-Cyanine5 absorbance and emission spectra

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General properties

Appearance: dark blue powder
Molecular weight: 777.95
CAS number: 2230212-27-6; 146368-14-1 (N-Ethyl)
Molecular formula: C36H40N3KO10S2
Solubility: very good in water, good in DMF and DMSO
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 646
ε, L⋅mol−1⋅cm−1: 271000
Emission maximum, nm: 662
Fluorescence quantum yield: 0.28
CF260: 0.04
CF280: 0.04

Product citations

  1. Jensen, M.; Stenfelt, L.; Ricci Hagman, J.; Pichler, M.J.; Weikum, J.; Nielsen, T.S.; Hult, A.; Morth, J.P.; Olsson, M.L.; Abou Hachem, M. Akkermansia muciniphila exoglycosidases target extended blood group antigens to generate ABO-universal blood. Nature Microbiology, 2024, 9, 1176–1188. doi: 10.1038/s41564-024-01663-4
  2. van Veldhuisen, T.W.; Verwiel, M.A.M.; Novosedlik, S.; Brunsveld, L.; van Hest, J.C.M. Competitive protein recruitment in artificial cells. Communications Chemistry, 2024, 7, 148. doi: 10.1038/s42004-024-01229-9
  3. Martin-Alonso, C.; Tabrizi, S.; Xiong, K.; Blewett, T.; Sridhar, S.; Crnjac, A.; Patel, S.; An, Z.; Bekdemir, A.; Shea, D.; Wang, S.-T.; Rodriguez-Aponte, S.; Naranjo, C.A.; Rhoades, J.; Kirkpatrick, J.D.; Fleming, H.E.; Amini, A.P.; Golub, T.R.; Love, J.C.; Bhatia, S.N.; Adalsteinsson, V.A. Priming agents transiently reduce the clearance of cell-free DNA to improve liquid biopsies. Science, 2024, 383(6680), eadf2341. doi: 10.1126/science.adf2341
  4. Miller, M. A.; Medina, S. Synthetic Colonic Mucus Enables the Development of Modular Microbiome Organoids. Advanced Functional Materials, 2024, 34(38), 2402514. doi: 10.1002/adfm.202402514
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Cy® is a trademark of Cytiva.
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