202371

Poly(ethylene glycol)

average M_n 300

• Synonym(s): PEG
• Linear Formula: H(OCH₂CH₂)_nOH
• CAS Number: 25322-68-3
• MDL number: MFCD00081839
• PubChem Substance ID: 24852059

Properties

• form: viscous liquid
• Quality Level: 200
• mol wt: M_n 285-315; average M_n 300
• 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
• SMILES string: C(CO)O
• InChI: 1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
• InChI key: LYCAIKOWRPUZTN-UHFFFAOYSA-N

Description

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

5, 250, 500 g in glass bottle

1 kg in glass bottle

20 kg in poly drum

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 1
• Flash Point(F): 428.0 °F - closed cup
• Flash Point(C): 220.00 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves