Synonyms: Cy5 PEG Carbonylacrylic acid, Carbonylacrylic acid PEG5000 Cy5, Carbonylacrylic PEG Cy5

Product Description:

Carbonylacrylic PEG Cy5 is one of Nanocs' thiol reactive fluorescent PEG derivatives that have a strong near infrared fluorescent Cyanine 5 fluorophore on its terminus. Similar to Maleimide, carbonylacrylic group reacts with thiol group quickly to form a stable thiol ether bond via so called ene-thiol Michael addition. Unlike maleimide-thiol adduct, the reaction between carbonylacrylic acid and thiol is non-reversible, and therefore the adduct is more stable for carbonylacrylic acid thiol conjuate. Carbonylacrylic acid reagents have been excellent reagents for site-specific Cysteine modification. Cy5, on the other hand, is a bright near infrared fluorescent dye that can be easily traced by its strong fluorescent light. The excitation/emission wavelength of this fluorescent PEG is 650/670 nm.  

Product Specifications:

• Form: Solid
• Apearance: Blue
• Reactive groups: Carbonylacrylic
• Reactive to: Sulfhydryl
• Ex/Em wavelength: 650/670 nm
• Solubility: Soluble in water

Storage:

• Store at -20 ⁰C. Desiccate. Protect from light.