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Merck
CN

PX1286B

Sigma-Aldrich

Polyethylene glycol

greener alternative

400

Synonym(s):

Poly(ethylene glycol), PEG 400, Carbowax, Polyethylene Glycol 400, PEG

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About This Item

Linear Formula:
H(OCH2CH2)nOH
CAS Number:
25322-68-3
MDL number:
MFCD00081839
UNSPSC Code:
13111021
EC Index Number:
500-038-2

Key Documents

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vapor pressure

<0.1 hPa ( 20 °C)

Quality Level

200

form

liquid

greener alternative product characteristics

Safer Solvents and Auxiliaries
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sustainability

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color

APHA: ≤18

pH

5-7 (20 °C, 100 g/L in H2O, neutral)

mp

5 °C

transition temp

flash point >200 °C

greener alternative category

Aligned

shipped in

ambient

storage temp.

room temp

SMILES string

C(CO)O

InChI

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

InChI key

LYCAIKOWRPUZTN-UHFFFAOYSA-N

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General description

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

  • Flexible Hydrogelation for Tactile Sensing: Recent research highlights the application of polyethylene glycol in bioinspired flexible hydrogels with programmable properties, enhancing the capabilities for tactile sensing applications (Wang et al., 2024).
  • Ocular Drug Delivery: Polyethylene glycol has been utilized in a sterilizable platform based on crosslinked xanthan gum for the controlled release of polymeric micelles, aimed at delivering neuroprotective compounds to the posterior eye segment (Signorini et al., 2024).
  • Nanoscale Drug Delivery Systems: A study on the nanoscale evaluation of black phosphorus nanosheets functionalized with polyethylene glycol and drug-loaded gold nanoparticles emphasizes its potential in enhancing drug delivery system stability (Gunathilaka and Shimomura, 2024).
  • Amphiphilic Thermogels for Biomedical Use: Polyethylene glycol is a key component in the design of carbosilane dendritic networks for developing high-swelling amphiphilic thermogels, suitable for various biomedical applications (Muñoz-Sánchez et al., 2024).
  • Biomedical and Environmental Polymer Applications: The role of polyethylene glycol in synthesizing natural and synthetic polymers showcases its versatility in both biomedical and environmental applications, offering new opportunities for sustainable material development (Satchanska et al., 2024).

Analysis Note

ClarityTo pass testColor (APHA)18 maxFormLiquidInfrared SpectrumConforms to standardSulfated ash0.05% maxSuspended matterTo pass testWater solubilityTo pass testpH of a 5% solution at 25°C4.5-7.5

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

281.5 °F - closed cup

Flash Point(C)

138.6 °C - closed cup

Regulatory Information

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