Poly(ethylene glycol)

ALDRICH/202444 - average M_n 3,350, powder

Synonym: Polyethylene glycol; PEG

CAS Number: 25322-68-3
MDL Number: MFCD00081839
Linear Formula: H(OCH₂CH₂)_nOH
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-202444-250G	250 g	$80.30 1/EA	Add To Favorites
45-202444-500G	500 g	$89.40 1/EA	Add To Favorites

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This image depicts SKU: 202444-250G

Properties
Descriptions
Safety Info.
Basic Data

Ω-end	hydroxyl
α-end	hydroxyl
density	1.204 g/mL at 25 °C
form	powder
InChI	1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key	LYCAIKOWRPUZTN-UHFFFAOYSA-N
mol wt	average M_n 3,350
mp	54-58 °C (lit.)
pH	4.5-7.5
Quality Level	200
SMILES string	C(CO)O
viscosity	90 cSt(210 °F) (99 °C)(lit.)

Application:	PEG can be used to functionalize magnetite nanoparticles. The coating of the magnetic core with PEG provides good stabilization while maintaining the magnetic properties of the nanoparticles. It can be used to modify the surface of photocatalytic TiO₂ nanopowder for its application in self-cleaning paints. PEG-coated TiO₂ nanopowder can be prepared under mild conditions and show excellent colloidal stability. It can be used as a cross-linker to prepare poly(N-isopropylacrylamide) based thermosensitive injectable hydrogels. The addition of PEG improves the chemical and mechanical properties of hydrogel and prevents it from dissolving in the swelling medium. Owing to their biocompatibility and biodegradability, these hydrogels are widely used for biomedical applications.
Features and Benefits:	• High structural flexibility • Biocompatibility • High hydration capacity • Devoid of any steric hindrance
General description:	Poly(ethylene glycol) (PEG) is a biocompatible inert synthetic polymer with repeating units of ether oxygen (-CH₂-CH₂-O-). It can be synthesized via anionic polymerization of ethylene oxide. It is extensively used in biological and medical applications due to its non-immunogenicity and high water solubility.
Other Notes:	Molecular weight: M_n 3,015-3,685
Packaging:	250, 500 g in poly bottle

RIDADR	NONH for all modes of transport
WGK Germany	WGK 1
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

mp	54-58 °C (lit.)
Density	1.204 g/mL at 25 °C
UNSPSC	12352104

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