DusQ 21 NHS ester
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 28D20 | 5 mg | – | in stock | |
| 48D20 | 25 mg | $315 | in stock | |
| 68D20 | 100 mg |
$885
|
in stock |
DusQ 21 is a dark quencher used as an acceptor in FRET applications, it has absorption maximum 656 nm, and can be used in multiplex assays due to the lack of secondary fluorescence. It is a quencher of choice for pairing with fluorescent dyes that emit in the red and near-infrared part of the range. DusQ 21 NHS ester derivative is used for labeling with the primary amines of amine-containing molecules. It can be used for quenching of many fluorophores, including Cyanine5, Cyanine5.5, AF 647.
Absorption spectrum of DusQ 21
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sulfo-Cyanine5 tetrazine
Water soluble Cyanine dye tetrazine derivative for TCO ligation with trans-cyclooctenes and other strained olefines.Cyanine5 NHS ester
Amine-reactive Cyanine5 activated ester for the labeling of proteins, peptides, and other molecules.General properties
| Appearance: | dark purple powder |
| Molecular weight: | 815.35 |
| CAS number: | 304014-13-9 |
| Molecular formula: | C45H39ClN4O7S |
| Quality control: | NMR 1H and HPLC-MS (95+%) |
| Storage conditions: | 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. |
| MSDS: | Download |
| Product specifications |
Spectral properties
| Excitation/absorption maximum, nm: | 656 |
| ε, L⋅mol−1⋅cm−1: | 72800 |
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