Poly(ethylene glycol)

ALDRICH/202371 - average M_n 300

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	Quantity


45-202371-250G	250 g	$54.30 1/EA		Add To Favorites
45-202371-500G	500 g	$56.60 1/EA		Add To Favorites
45-202371-1KG	1 kg	$86.60 1/EA		Add To Favorites
45-202371-20KG	20 kg	$1090.00 1/EA		Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

Ω-end	hydroxyl
α-end	hydroxyl
density	1.125 g/mL at 25 °C
form	viscous liquid
InChI	1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key	LYCAIKOWRPUZTN-UHFFFAOYSA-N
M_w/M_n	1.1 (typical)
mol wt	average M_n 300
	M_n 285-315
mp	−15-−8 °C (lit.)
pH	6-7 (23 °C, at 10 g/l)
Quality Level	200
refractive index	n20/D 1.463
SMILES string	C(CO)O
viscosity	5.8 cSt(210 °F)(lit.)

Application:	PEG modification increases thermostability and inhibitor resistance of Bst DNA polymerase.: This study demonstrates that polyethylene glycol (PEG) modification significantly enhances the thermostability and inhibitor resistance of Bst DNA polymerase, highlighting PEG′s potential in improving enzyme performance for biotechnological applications (Yang et al., 2024 ). Development of Lyophilized Eukaryotic Cell-Free Protein Expression System Based on Leishmania tarentolae.: The incorporation of PEG in the lyophilization process of a cell-free protein expression system demonstrates its role in enhancing the stability and efficiency of biotechnological workflows (Alfaro-Palma et al., 2024 ). A comprehensive review on singlet oxygen generation in nanomaterials and conjugated polymers for photodynamic therapy in the treatment of cancer.: This review highlights the application of PEGylated nanomaterials in photodynamic therapy, emphasizing its significance in improving biocompatibility and therapeutic efficacy in cancer treatments (Singh et al., 2024 ).
General description:	Polyethylene glycol (PEG) is a hydrophilic polymer. It can be easily synthesized by the anionic ring opening polymerization of ethylene oxide, into a range molecular weights and variety of end groups. When crosslinked into networks, PEG can have high water content, forming "hydrogels". Hydrogel formation can be initiated by either crosslinking PEG by ionizing radiation or by covalent crosslinking of PEG macromers with reactive chain ends. PEG is a suitable material for biological applications because it does not trigger an immune response.
Packaging:	1 kg in glass bottle
Packaging:	20 kg in poly drum
Packaging:	5, 250, 500 g in glass bottle

RIDADR	NONH for all modes of transport
WGK Germany	WGK 1
Flash Point(F)	428.0 °F - closed cup
Flash Point(C)	220.00 °C - closed cup

mp	−15-−8 °C (lit.)
Density	1.125 g/mL at 25 °C
Refractive Index	n20/D 1.463
UNSPSC	12352104

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