Cyanine5.5 alkyne

Cat. # Quantity Price Lead time
A70B0 1 mg $125 in stock
B70B0 5 mg $260 in stock
C70B0 10 mg $325 in stock
D70B0 25 mg $510 in stock
E70B0 50 mg $895 in stock
F70B0 100 mg $1490 in stock
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Far red / near-infrared dye alkyne for сlick сhemistry labeling. Cyanine5.5 is an analog of Cy5.5®, a popular fluorophore widely used for various applications, including intact organism imaging. This reagent can be conjugated with azido groups under mild copper-catalyzed сlick сhemistry conditions.

This reagent is soluble in organic solvents, but mixtures of water with a 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.

Absorbance and emission spectra of Cyanine5.5

Absorbance and emission spectra of Cyanine5.5

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General properties

Appearance: dark blue powder
Molecular weight: 656.30
CAS number: 1628790-37-3
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/absorption 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. Arranz-Gibert, P.; Vanderschuren, K.; Haimovich, A.; Halder, A.; Gupta, K.; Rinehart, J.; Isaacs, F. J. Chemoselective Restoration of Para-Azido-Phenylalanine at Multiple Sites in Proteins. Cell Chemical Biology, 2022, 29(6), 1046-1052.e4. doi: 10.1016/j.chembiol.2021.12.002
  2. Li, M.; Ruwe, H.; Melzer, M.; Junker, A.; Hensel, G.; Tschiersch, H.; Schwenkert, S.; Chamas, S.; Schmitz-Linneweber, C.; Börner, T.; Stein, N. The Arabidopsis AAC Proteins CIL and CIA2 Are Sub-functionalized Paralogs Involved in Chloroplast Development. Frontiers in Plant Science, 2021, 12, 681375. doi: 10.3389/fpls.2021.681375
  3. Li, M.; Hensel, G.; Melzer, M.; Junker, A.; Tschiersch, H.; Ruwe, H.; Arend, D.; Kumlehn, J.; Börner, T.; Stein, N. Mutation of the ALBOSTRIANS Ohnologous Gene HvCMF3 Impairs Chloroplast Development and Thylakoid Architecture in Barley. Frontiers in Plant Science, 2021, 12, 732608. doi: 10.3389/fpls.2021.732608
  4. 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
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