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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Biotin derivative with C6-spacer to reduce steric effect when binding amino acids, peptides, or proteins by reacting with primary amines.sulfo-Cyanine3.5 NHS ester
Amine-reactive activated ester of water-soluble, sulfonated sulfo-Cyanine3.5 dye.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 |
This Product is offered and sold for research purposes only. It has not been tested for safety and efficacy in food, drug, medical device, cosmetic, commercial or any other use. Supply does not express or imply authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, in the manufacture of food or pharmaceutical products, in medical devices or in cosmetic products.
Short link - lumiprobe.com/sh/p/9m
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