Cyanine3B NHS ester
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
19320 | 1 mg | $140 | in stock | |
29320 | 5 mg | $340 | in stock | |
49320 | 25 mg | $990 | in stock | |
59320 | 50 mg | $1690 | in stock | |
69320 | 100 mg | $3100 | in stock |
Cyanine3B NHS ester is a reactive dye for the specific labeling of amino-groups in biomolecules — antibodies, peptides, or oligonucleotides. Cyanine3B is an improved version of yellow Cyanine3 dye with significantly increased fluorescence quantum yield and photostability.
Cyanine3B absorbance and emission spectra
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sulfo-Cyanine5 carboxylic acid
Water-soluble Cyanine5 carboxylic acid, non-activated fluorescent dye.Cyanine3B amine
Amino derivative of Cyanine3B, a reactive dye with significantly increased fluorescence quantum yield and photostability for the conjugation with activated esters and epoxides.General properties
Appearance: | dark red powder |
Molecular weight: | 657.75 |
CAS number: | 228272-52-4 |
Molecular formula: | C35H35N3O8S |
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. |
MSDS: | Download |
Product specifications |
Spectral properties
Excitation/absorption maximum, nm: | 559 |
ε, L⋅mol−1⋅cm−1: | 121000 |
Emission maximum, nm: | 571 |
Fluorescence quantum yield: | 0.68 |
CF260: | 0.044 |
CF280: | 0.077 |
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