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202371

Sigma-Aldrich

Poly(ethylene glycol)

average Mn 300

Synonym(s):
PEG
Linear Formula:
H(OCH2CH2)nOH
CAS Number:
MDL number:
PubChem Substance ID:

form

viscous liquid

Quality Level

mol wt

Mn 285-315
average Mn 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

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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.

Packaging

5, 250, 500 g in glass bottle
1 kg in glass bottle
20 kg in poly drum

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

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