Synonyms: Fluorescein PEG Carbonylacrylic acid, Carbonylacrylic acid PEG5k FTIC, Carbonylacrylic PEG FITC

Product Description:

Carbonylacrylic PEG FITC is one of Nanocs' thiol reactive fluorescent PEG derivatives that have a strong green fluorescent rhodamine 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. Fluorescein, on the other hand, is a bright green fluorescent dye that can be easily traced by its strong fluorescent light. The excitation/emission wavelength of this fluorescent PEG is 495/515 nm.  

Product Specifications:

• Form: Solid
• Apearance: Yellow to orange
• Reactive groups: Carbonylacrylic
• Reactive to: Sulfhydryl
• Ex/Em wavelength: 495 nm/515 nm
• Solubility: Soluble in water

Storage:

• Store at -20 ⁰C. Desiccate.