Cyanine5.5 carboxylic acid

Cat. # Quantity Price Lead time
17090 1 mg $110.00 5 days
27090 5 mg $210.00 in stock
47090 25 mg $410.00 in stock
57090 50 mg $695.00 in stock
67090 100 mg $1190.00 in stock

Cyanine5.5 dye, free acid form, unactivated. The dye can be considered non-reactive for most applications. It can be used as a control or reference sample, and for instrument calibration.

Pre-activated NHS ester for the labeling of amine groups is also available.

Cy5.5 absorbance and emission spectra

Cy5.5 absorbance and emission spectra

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Cyanine5.5 amine

Amino derivative of Cyanine5.5, a far red emitting fluorescent cyanine dye.
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Cyanine7.5 NHS ester

Amine reactive NHS ester of NIR fluorescent dye Cyanine7.5.
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Sulfo-Cyanine5.5 amine

Sulfo-Cyanine5.5 is a far red/NIR fluorophore possessing high hydrophilicity and aqueous solubility. The dye displays good brightness in far red region due to outstanding molar extinction coefficient. This is amine derivative which is reactive towards electrophiles. It can also be used for enzymatic transamination labeling.

General properties

Appearance: dark blue powder
Molecular weight: 619.23
CAS number: 1449661-34-0 (without anion), 1449612-07-0 (inner salt)
Molecular formula: C40H43ClN2O2
IUPAC name: 1H-​Benz[e]​indolium, 2-​[5-​[3-​(5-​carboxypentyl)​-​1,​3-​dihydro-​1,​1-​dimethyl-​2H-​benz[e]​indol-​2-​ylidene]​-​1,​3-​pentadien-​1-​yl]​-​1,​1,​3-​trimethyl-
Solubility: soluble in organic solvents (DMSO, DMF, dichloromethane), insoluble in water
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 24 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: 209000
Emission maximum, nm: 710
Fluorescence quantum yield: 0.2
CF260: 0.07
CF280: 0.03

Product citations

  1. Zhang, L.; Yao, M.; Yan, W.; Liu, X.; Jiang, B.; Qian, Z.; Gao, Y.; Lu, X.-J.; Chen, X.; Wang, Q.-L. Delivery of a chemotherapeutic drug using novel hollow carbon spheres for esophageal cancer treatment. International Journal of Nanomedicine, 2017, 12, 6759–6769. doi: 10.2147/IJN.S142916
  2. Liu, M.; Richardson, R.R.; Mountford, S.J.; Zhang, L.; Tempone, M.H.; Herzog, H.; Holliday, N.D.; Thompson, P.E. Identification of a Cyanine-Dye Labelled Peptidic Ligand for Y1R and Y4R, based upon the Neuropeptide Y C-terminal analogue, BVD-15. Bioconjugate Chemistry, 2016, 27(9), 2166–2175. doi: 10.1021/acs.bioconjchem.6b00376
  3. Camerino, M.A.; Liu, M.; Moriya, S.; Kitahashi, T.; Mahgoub, A.; Mountford, S.J.; Chalmers, D.K.; Soga, T.; Parhar, I.S.; Thompson, P.E. Beta amino acid-modified and fluorescently labelled kisspeptin analogues with potent KISS1R activity. Journal of Peptide Science, 2016, 22(6), 406–414. doi: 10.1002/psc.2883
  4. Zhao, Y.; Fay, F.; Hak, S.; Manuel Perez-Aguilar, J.; Sanchez-Gaytan, B.L.; Goode, B.; Duivenvoorden, R.; de Lange Davies, C.; Bjørkøy, A.; Weinstein, H.; Fayad, Z.A.; Pérez-Medina, C.; Mulder, W.J.M. Augmenting drug-carrier compatibility improves tumour nanotherapy efficacy. Nature Communications, 2016, 7, 11221. doi: 10.1038/ncomms11221
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