Sulfo-Cyanine3 alkyne

Cat. # Quantity Price Lead time
A13B0 1 mg $110.00 in stock
B13B0 5 mg $290.00 in stock
C13B0 10 mg $470.00 in stock
D13B0 25 mg $690.00 in stock
E13B0 50 mg $1270.00 in stock
F13B0 100 mg $1990.00 in stock

A water soluble alkyne dye for copper catalyzed Click Chemistry, an analog of Cy3® alkyne.

Sulfo-Cyanine3 is a fluorophore which is compatible with a wide range of fluorescent scanners, imagers, microscopes, and other instrumentation. It is a bright and photostable dye, which is also easily detected in gels by naked eye in low amounts (<1 nmol).

Absorbance and emission spectra of Sulfo-Cyanine3 dye

Absorbance and emission spectra of Sulfo-Cyanine3 dye

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Coumarin 343 X azide

Coumarin 343 is a blue emitting fluorophore that can serve as a FRET donor for fluorescein (FAM). This azide derivative can be conjugated with alkynes by Click chemistry. An extended linker arm between the fluorophore and the azide group enhances solubility, and provides spatial separation between the dye and the biomolecule.

Copper(II)-TBTA complex, 10 mM in 55% aq. DMSO

Catalyst for bioconjugate synthesis by Click Chemistry.

General properties

Appearance: dark red powder
Mass spec M+ increment: 653.2
Molecular weight: 691.90
CAS number: 2055138-87-7 (inner salt); 2055138-88-8 (sodium salt)
Molecular formula: C33H38KN3O7S2
Solubility: soluble in water (0.57 M = 40 g/L), DMSO, DMF
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: 548
ε, L⋅mol−1⋅cm−1: 162000
Emission maximum, nm: 563
Fluorescence quantum yield: 0.1
CF260: 0.03
CF280: 0.06

Product citations

  1. Tobola, F.; Sylvander, E.; Gafko, C.; Wiltschi, B. `Clickable lectins': bioorthogonal reactive handles facilitate the directed conjugation of lectins in a modular fashion. Interface Focus, 2019, 9(2), 20180072. doi: 10.1098/rsfs.2018.0072
  2. Rambarran, T.; Gonzaga, F.; Fatona, A.; Coulson, M.; Saem, S.; Moran-Mirabal, J.; Brook, M.A. Bonding and in-channel microfluidic functionalization using the huisgen cyclization. ournal of Polymer Science Part A: Polymer Chemistry, 2018, 56(6), 589–597. doi: 10.1002/pola.28930
  3. Konishcheva, E.V.; Zhumaev, U.E.; Meier, W.P. PEO-b-PCL-b-PMOXA Triblock Copolymers: From Synthesis to Microscale Polymersomes with Asymmetric Membrane. Macromolecules, 2017, 50(4), 1512–1520. doi: 10.1021/acs.macromol.6b02743
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