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Cyanine3B maleimide

貨號 數量 價格 交貨時間
19380 1 mg $250 現貨
29380 5 mg $450 現貨
49380 25 mg $1750 現貨
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Cyanine3B is one of the brightest fluorophores possessing high sensitivity. Cyanine3B dye maleimide is used to produce maleimide-thiol conjugates via thiols to antibodies, peptides, and other biomolecules with Cyanine3B fluorophore with high fluorescence quantum yield and photostability. Michael-addition of a thiol to a maleimide approach enables the selective method of antibody labeling.

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

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General properties

Appearance: golden-purple powder
Molecular weight: 682.80
Molecular formula: C37H38N4O7S
Solubility: in DMSO, DMF
Quality control: NMR 1H and HPLC-MS (90+%)
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: 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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