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Submit ReviewIRDye® 800CW, DBCO New
Description: Near-infared dye (reactive group DBCO)
Purity: ≥80% (HPLC)
Biological Activity for IRDye® 800CW, DBCO
Key information: IRDye® 800CW, DBCO is a near-infrared (NIR) fluorescent dye, supplied with a DBCO reactive group for conjugation. DBCO reactive group can react with azide-tagged molecules or biomolecules via copper-free click chemistry.
Application: Fluorescence microscopy.
Properties and Photophysical Data: Excitation and emission maxima (λ) are 778 nm and 794 nm, respectively.
It is recommended to dissolve this dye in water or DMSO (10 - 20 mg/mL). Dye solubilized in aqueous solutions or in DMSO is stable for up to two weeks when stored at -20 °C and protected from light.
DBCO technology enables spontaneous labeling of azide groups in the presence of naturally occuring nucleophiles (e.g. amines and hydroxyls) at physiological pH and temperature. At higher pH or temperature, competition from naturally occuring nucleophiles may occur.
NOTE: When labeling a peptide or protein with IRDye® 800CW DBCO, the choice of solvent for the dye is dependent on the stability of the target. Since a small amount of dye is needed to label large (i.e. >45 kDa) proteins, the amount of DMSO in the reaction is negligible and should not affect protein stability. However, since a proportionally larger amount of dye is required to achieve adequate labeling for a small protein (i.e. <45 kDa) or peptide, the level of DMSO in the reaction is more likely to affect the target stability. Dye solubilized in aqueous solutions or in DMSO is stable for up to two weeks when stored at -20 °C and protected from light.
IRDye® is a registered trademark of Li-Cor and is used under license.
Optical Data for IRDye® 800CW, DBCO
| λabs | 778 nm |
|---|---|
| λem | 794 nm |
Plan Your Experiments
Use our spectra viewer to interactively plan your experiments, assessing multiplexing options. View the excitation and emission spectra for our fluorescent dye range and other commonly used dyes.
Spectral Viewer
Technical Data for IRDye® 800CW, DBCO
| M. Wt | 1327.45 |
| Formula | C64H65N4Na3O15S4 |
| Storage | Store at -20°C |
| Purity | ≥80% (HPLC) |
| CAS Number | 1373928-39-2 |
| InChI Key | PLZNLSRDJOEMNQ-UHFFFAOYSA-K |
| Smiles | CC1(C)C2=CC(S(=O)(O[Na])=O)=CC=C2[N+](CCCCS([O-])(=O)=O)=C1/C=C/C3=C(OC4=CC=C(S(=O)(O[Na])=O)C=C4)/C(CCC3)=C/C=C5C(C)(C)C(C=C(S(=O)(O[Na])=O)C=C6)=C6N\5CCCCCC(NCCC(N7CC(C=CC=C8)=C8C#CC9=C7C=CC=C9)=O)=O |
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Product Datasheets for IRDye® 800CW, DBCO
References for IRDye® 800CW, DBCO
References are publications that support the biological activity of the product.
Khoroshkin et al (2024) A systematic search for RNA structural switches across the human transcriptome. Nat.Methods 21 1634 PMID: 39014073
If you know of a relevant reference for IRDye® 800CW, DBCO, please let us know.
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Keywords: IRDye® 800CW, DBCO, IRDye® 800CW, DBCO supplier, NIR, near, infrared, short, wave, SWIR, fluorescent, dyes, fluorescence, imaging, labeling, labelling, Near, Infrared, Fluorescent, copper, free, click, chemistry, (NIR), Dyes, 8879, Tocris Bioscience
Citations for IRDye® 800CW, DBCO
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Fluorescent Dyes and Probes Research Product GuideUpdated
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