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Polyethylene Glycol
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Poly(ethylene glycol) 2-mercaptoethyl ether acetic acid, average Mn 3500

Poly(ethylene glycol) 2-mercaptoethyl ether acetic acid, average Mn 3500

Basic Information Description Application Features And Benefits

CAS	165729-81-7
Catalog Number	ACM165729817-2
Synonyms	thiol-PEG-acid, thiol-PEG-carboxylate, thio-PEG, mercaptopoly(ethylene glycol) carboxylic acid, mercaptoPEG acid, mercaptopolyoxyethylene acetic acid
Molecular Weight	PEG average Mn 3,400 (n~77) average Mn 3,500
Architecture	shape: linear functionality: heterobifunctional
Form	solid
Packaging	Packaging 500 mg in glass insert
Quality Level	100
Storage Temperature	−20°C
αEnd	carboxylic acid
ΩEnd	thiol

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 Reported s include: bioconjugation, drug delivery, PEG hydrogel, crosslinker, and surface functionalization.

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