Surface Coating / Alfa Chemistry

Poly(ethylene glycol) methyl ether azide

Basic Information Description Application Features And Benefits
CAS 89485-61-0
Catalog Number ACM89485610-4
Synonyms Methoxypolyethylene glycol azide, mPEG-N3, azido mPEG, PEG N3, methoxyPEG azide, mPEG azide
Molecular Weight PEG average Mn 350 (n~8)
average Mn 400
Density 1.105 g/mL at 25 °C
Packaging Packaging
1 mL in glass bottle
Quality Level 100
Refractive Index n20/D 1.458
Storage Temperature 2-8°C
αEnd methoxy
ΩEnd azide
Description Polyethylene glycol (PEG) compounds contain a polyether unit, commonly expressed as R1-(O-CH2-CH2)n-O-R2. They are generally biocompatible, non-toxic and stable in both organic and aqueous solutions, and so are extensively used in biological applications, as well as nanotechnology and materials research. Proteins with PEG chain modifications and compounds encapsulated in PEG liposomes exhibit a longer half-life in vivo than their non-PEGylated counterparts, a phenomenon known as PEG shielding. Functionalised PEG lipids and phospholipids can be used for protein-PEG conjugation.
Application PEG functionalized with azide is commonly used in copper-mediated ligation (click chemistry). PEG of this molecular weight should remain amorphous at room temperature.
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