Cyanine5.5 NHS ester

Cat. # Quantity Price Lead time
17020 1 mg $110.00 in stock
27020 5 mg $210.00 in stock
47020 25 mg $410.00 in stock
57020 50 mg $695.00 in stock
67020 100 mg $1190.00 in stock

Cyanine5.5 NHS ester is a reactive dye for the labeling of amino-groups in peptides, proteins, and oligonucleotides, an analog of Cy5.5® NHS ester.

Cy5.5 is a far-red (and near-infrared) emitting dye which is ideal for fluorescence measurements where background fluorescence is a concern. It is also suitable for in vivo NIR imaging experiments.

This reagent can replace NHS esters of Cy5.5®, Alexa Fluor 680, and DyLight 680.

Cy5.5 absorbance and emission spectra

Cy5.5 absorbance and emission spectra

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Sulfo-Cyanine3 alkyne

A water soluble dye alkyne for copper-catalyzed Click Chemistry. The fluorophore Sulfo-Cyanine3 is a bright and photostable dye for the Cy3® channel.

sulfo-Cyanine3 DBCO

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General properties

Appearance: dark blue solid
Molecular weight: 767.66
CAS number: 2375105-86-3
Molecular formula: C44H46N3BF4O4
IUPAC name: 1H-​Benz[e]​indolium, 2-​[5-​(1,​3-​dihydro-​1,​1,​3-​trimethyl-​2H-​benz[e]​indol-​2-​ylidene)​-​1,​3-​pentadien-​1-​yl]​-​3-​[6-​[(2,​5-​dioxo-​1-​pyrrolidinyl)​oxy]​-​6-​oxohexyl]​-​1,​1-​dimethyl-
Solubility: soluble in organic solvents (DMSO, DMF, dichloromethane), practically insoluble in water (< 1 uM, < 1 mg/L)
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 maximum, nm: 684
ε, L⋅mol−1⋅cm−1: 198000
Emission maximum, nm: 710
Fluorescence quantum yield: 0.2
CF260: 0.07
CF280: 0.03

Product citations

  1. Wang, Y.; Xu, X.; Zhao, X.; Yin, Z. Functionalized polymeric hybrid micelles as an efficient nanotheranostic agent for thrombus imaging and thrombolysis. Acta Biomaterialia, in press. doi: 10.1016/j.actbio.2020.10.015
  2. Nam, S.H.; Jang, J.; Cheon, D.H.; Chong, S.-E.; Ahn, J.H.; Hyun, S.; Yu, J.; Lee, Y. pH-Activatable cell penetrating peptide dimers for potent delivery of anticancer drug to triple-negative breast cancer. Journal of Controlled Release, in press. doi: 10.1016/j.jconrel.2020.10.063
  3. Ji, M.-L.; Jiang, H.; Wu, F.; Geng, R.; Ya, L.K.; Lin, Y.C.; Xu, J.H.; Wu, X.T.; Lu, J. Precise targeting of miR-141/200c cluster in chondrocytes attenuates osteoarthritis development. Annals of the Rheumatic Diseases, in press. doi: 10.1136/annrheumdis-2020-218469
  4. Si, Y.; Xu, Y.; Guan, J.; Chen, K.; Kim, S.; Yang, E.S.; Zhou, L.; Liu, X.M. Anti-EGFR antibody-drug conjugate for triple-negative breast cancer therapy. Engineering in Life Sciences, in press. doi: 10.1002/elsc.202000027
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