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Cyanine3B azide

貨號 數量 價格 交貨時間
19330 1 mg
$140
現貨
29330 5 mg
$340
現貨
49330 25 mg
$990
現貨
59330 50 mg
$1690
現貨
69330 100 mg
$3100
現貨
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Cyanine3B dye azide for сlick сhemistry conjugation with terminal alkynes via a copper-catalyzed click reaction or strained cyclooctynes via a copper-free click reaction.

Cyanine3B is a yellow-emitting cyanine dye that is an improved version of the Cyanine3 fluorophore with significantly higher fluorescence quantum yield and photostability. Due to the fixed conformation, Cyanine3B has the highest emission quantum yield compared to other dyes of this wavelength.

This is a sulfonated dye and can be used for efficient labeling in water media.

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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: 642.78
CAS number: 1914113-85-1
Molecular formula: C34H38N6O5S
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: 24 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: 下載
產品規格

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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