Cyanine5 maleimide CY5-MAL
作者:Cyanine5 maleimide CY5-MAL 发布时间:2022-08-01 11:11:49
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Cyanine5 maleimide
Cat. # Quantity Price
13080 1mg 1760.00
23080 5mg 3360.00
43080 25mg 6560.00
53080 50mg 11120.00
63080 100mg 17600.00
Cyanine5 maleimide is a mono-reactive dye which selectively couples with thiol groups (for example, with cysteines in peptides and proteins) to give labeled conjugates.
Cyanine5 is an analog of Cy5®, a common fluorophore which is compatible with various instrumentation like microscopes, imagers, and fluorescence readers.
For the labeling of antibodies and sensitive proteins we recommend to use the water soluble sulfo-Cyanine5 maleimide.
General properties
Appearance: dark blue powder
Molecular weight: 641.24
Molecular formula: C38H45ClN4O3
Solubility: soluble in organic solvents (DMF, DMSO, dichloromethane), insoluble in water
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
Spectral properties
Excitation maximum, nm: 646
ε, L⋅mol−1⋅cm−1: 250000
Emission maximum, nm: 662
Fluorescence quantum yield: 0.2