PX1286B

Polyethylene glycol

400

• Synonym(s): Poly(ethylene glycol), PEG 400, Carbowax, Polyethylene Glycol 400, PEG
• Linear Formula: H(OCH₂CH₂)_nOH
• CAS Number: 25322-68-3
• MDL number: MFCD00081839
• UNSPSC Code: 13111021
• EC Index Number: 500-038-2

Properties

• vapor pressure: <0.1 hPa ( 20 °C)
• Quality Level: 200
• form: liquid
• color: APHA: ≤18
• pH: 5-7 (20 °C, 100 g/L in H₂O, neutral)
• mp: 5 °C
• transition temp: flash point >200 °C
• 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

Description

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

Safety Information

• 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