DusQ 3 NHS ester
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
23D20 | 5 mg | – | in stock | |
43D20 | 25 mg | $315 | in stock | |
53D20 | 50 mg | $580 | in stock | |
63D20 | 100 mg | $885 | in stock |
DusQ 3 NHS ester is a dark, far-red nonfluorescent DusQ 3 derivative for labeling with the primary amines of proteins, modified oligonucleotides. The labeling with covalent amide bond occurs most efficiently at pH 7-9.
DusQ 3 is used as an acceptor for preparation of fluorogenic dual-labeled probes, for qPCR, sequencing and other fluorescence-quenched system applications.
Due to quenching range characterised as 620-730 nm DusQ 3 is useful as an acceptor in fluorescence resonance energy transfer (FRET) combined with far-red to near-IR emitting dyes such as Cyanine5, Cyanine5.5, AF 647.
Absorption spectrum of DusQ 3
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General properties
Appearance: | dark powder |
Molecular weight: | 817.77 |
Molecular formula: | C39H42N7O4 |
Solubility: | good in DMF, DMSO |
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. Avoid prolonged exposure to light. |
MSDS: | Download |
Product specifications |
Spectral properties
Excitation/absorption maximum, nm: | 657 |
ε, L⋅mol−1⋅cm−1: | 45500 |