Cyanine5.5 alkyne

Cat. # Quantity Price Lead time
A70B0 1 mg $110.00 in stock
B70B0 5 mg $210.00 in stock
C70B0 10 mg $310.00 in stock
D70B0 25 mg $410.00 in stock
E70B0 50 mg $695.00 in stock
F70B0 100 mg $1190.00 in stock

Far red / near infrared dye alkyne for Click Chemistry labeling. Cyanine5.5 is an analog of Cy5.5®, a popular fluorophore which has been widely used for various applications including intact organism imaging. This reagent can be conjugated with azido groups under mild copper catalyzed Click Chemistry conditions.

This reagent is soluble in organic solvents, but mixtures of water with small percent of DMSO can be used for efficient conjugation. Cyanine5.5 alkyne can also be used for the labeling of small molecules with this far red/NIR dye.

Cyanine5.5 absorbance and emission spectra

Cyanine5.5 absorbance and emission spectra

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General properties

Appearance: dark blue powder
Molecular weight: 656.30
Molecular formula: C43H46ClN3O
Solubility: good in organic solvents (DMF, DMSO, acetonitrile, DCM, alcohols), practically insoluble in water (5.2 uM, 3.7 mg/L)
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.
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. Mickuté, M.; Nainyté, M.; Vasiliauskaité, L.; Plotnikova, A.; Masevičius, V.; Klimašauskas, S.; Vilkaitis, G. Animal Hen1 2'-O-methyltransferases as tools for 3'-terminal functionalization and labelling of single-stranded RNAs. Nucleic Acids Research, 2018, 46(17), e104. doi: 10.1093/nar/gky514
  2. Yuan, H.; Wilks, M.Q.; Fakhri, G.E.; Normandin, M.D.; Kaittanis, C.; Josephson, L. Heat-induced-radiolabeling and click chemistry: A powerful combination for generating multifunctional nanomaterials. PLoS One, 2017, 12(2), e0172722. doi: 10.1371/journal.pone.0172722
  3. Duan, Z.; Zhang, Y.; Zhu, H.; Sun, L.; Cai, H.; Li, B.; Gong, Q.; Gu, Z.; Luo, K. Stimuli-Sensitive Biodegradable and Amphiphilic Block Copolymer-Gemcitabine Conjugates Self-assemble Into a Nanoscale Vehicle for Cancer Therapy. ACS Applied Materials & Interfaces, 2017, 9(4), 3474–3486. doi: 10.1021/acsami.6b15232
  4. Shi, Y.; van der Meel, R.; Theek, B.; Oude Blenke, E.; Pieters, E.H.E.; Fens, M.H.A.M.; Ehling, J.; Schiffelers, R.M.; Storm, G.; van Nostrum, C.F.; Lammers, T.; Hennink, W.E. Complete Regression of Xenograft Tumors upon Targeted Delivery of Paclitaxel via Π–Π Stacking Stabilized Polymeric Micelles. ACS Nano, 2015, 9(4), 3740–3752. doi: 10.1021/acsnano.5b00929
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