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Merck

202371

Poly(ethylene glycol)

greener alternative

average Mn 300, hydroxyl

Synonym(s):

Polyethylene glycol, PEG

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About This Item

Linear Formula:
H(OCH2CH2)nOH
CAS Number:
25322-68-3
UNSPSC Code:
12352104
PubChem Substance ID:
24852059
NACRES:
NA.23
MDL number:
MFCD00081839

Key Documents

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Product Name

Poly(ethylene glycol), average Mn 300

InChI key

LYCAIKOWRPUZTN-UHFFFAOYSA-N

InChI

1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2

form

viscous liquid

mol wt

Mn 285-315, average Mn 300

greener alternative product characteristics

Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.

sustainability

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refractive index

n20/D 1.463

pH

6-7 (23 °C, at 10 g/l)

viscosity

5.8 cSt(210 °F)(lit.)

mp

−15-−8 °C (lit.)

density

1.125 g/mL at 25 °C

Mw/Mn

1.1 (typical)

Ω-end

hydroxyl

α-end

hydroxyl

greener alternative category

Aligned

Quality Level

200

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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.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. Polyethylene glycol (PEG) is an eco-friendly, biodegradable polymer widely used in pharmaceuticals and cosmetics. Its non-toxic nature and versatility make it a sustainable choice, derived from renewable resources, contributing to greener product formulations. Click here for more information.

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).


Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

428.0 °F - closed cup

flash_point_c

220.00 °C - closed cup

ppe

Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 4: Flammable liquids + Type 4 petroleums + Hazardous rank III

fsl

202371-250G: + 202371-1KG: + 202371-VAR: + 202371-500G: + 202371-20KG: + 202371-5G: + 202371-BULK:

jan

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Certificates of Analysis (COA)

Lot/Batch Number
BCCG7497
BCCG7496
BCCF9465
BCCF0485
BCCF0486

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Plasticizing collagen hydrolysate with glycerol and low-molecular weight poly(ethylene glycols)
Langmaier F, et al.
Thermochimica Acta, 469(1-2), 52-58 (2008)
Developing perylene diimide based acceptor polymers for organic photovoltaics
Liang Z, et al.
Synthetic Metals, 161(11-12), 1014-1021 (2011)
Anju Singh et al.
Scientific reports, 10(1), 3766-3766 (2020-03-01)
Th17 cells are critical drivers of autoimmune diseases and immunopathology. There is an unmet need to develop therapies targeting pathogenic Th17 cells for the treatment of autoimmune disorders. Here, we report that anxiolytic FGIN-1-27 inhibits differentiation and pathogenicity of Th17
Rheological studies of disulfonated poly(arylene ether sulfone) plasticized with poly(ethylene glycol) for membrane formation
Oh HJ, et al.
Polymer, 55(6), 1574-1582 (2014)
Ofer Beharier et al.
Proceedings of the National Academy of Sciences of the United States of America, 117(44), 27319-27328 (2020-10-23)
The recently identified ferroptotic cell death is characterized by excessive accumulation of hydroperoxy-arachidonoyl (C20:4)- or adrenoyl (C22:4)- phosphatidylethanolamine (Hp-PE). The selenium-dependent glutathione peroxidase 4 (GPX4) inhibits ferroptosis, converting unstable ferroptotic lipid hydroperoxides to nontoxic lipid alcohols in a tissue-specific manner.
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ポリエチレングリコール（PEG）：DDSと組織工学での活用・選択ガイド

ポリエチレングリコール（PEG）は、生物学的、化学的応用や医薬品開発に有用な化学的性質を有するエチレンオキシドと水との縮合ポリマーです。研究用途にPEGを使用する際に考慮すべき4つのポイントをご紹介します。

Universal Platform for Surface Modification Employing Grafted Polymer Layers

The present publication focuses on synthesis and characterization of nanothick, chemically grafted polymer films (polymer brushes) on various inorganic and polymeric substrates.

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