Cyanine5.5 maleimide,Cy5.5 mal
Cyanine5.5 maleimide is a thiol reactive dye which is capable of selective labeling of sulfhydryl groups in proteins, an analog of Cy5.5® maleimide.
Near infrared emission of Cyanine5.5 makes this dye suitable for bioimaging applications.
Cyanine5.5 can replace Cy5.5®, Alexa Fluor 680, and DyLight 680.
General properties
Appearance: | dark blue powder |
Molecular weight: | 741.36 |
CAS number: | 1594414-90-0; 1593644-50-8; 1854918-28-7 |
Molecular formula: | C46H49ClN4O3 |
Solubility: | soluble in organic solvents (DMSO, DMF, dichloromethane), low solubility in water |
Quality conrol: | 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. |
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Spectral properties
Excitation maximum, nm: | 684 |
ε, L⋅mol−1⋅cm−1: | 209000 |
Emission maximum, nm: | 710 |
Fluorescence quantum yield: | 0.2 |
CF260: | 0.07 |
CF280: | 0.03 |
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