MilliporeSigma
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202509

Sigma-Aldrich

Poly(ethylene glycol) methyl ether

average Mn ~2,000

Synonym(s):
Methoxy poly(ethylene glycol), mPEG, Polyethylene glycol monomethyl ether
Linear Formula:
CH3(OCH2CH2)nOH
CAS Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

vapor density

>1 (vs air)

vapor pressure

0.05 mmHg ( 20 °C)

form

flakes (or pellets)

mol wt

average Mn ~2,000

viscosity

54.6 cSt(210 °F)(lit.)

transition temp

Tm 52 °C

functional group

hydroxyl

InChI

1S/C3H8O2/c1-5-3-2-4/h4H,2-3H2,1H3

InChI key

XNWFRZJHXBZDAG-UHFFFAOYSA-N

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General description

It is a Polyethylene glycol (PEG) macromer with a reactive chain end consisting of methyl ether. Etherification of the PEG chain ends can be undertaken in basic conditions by reacting it with alkyl halides. mPEG can undergo cross linking to form hydrogels; polymerization can be initiated by redox reaction or free radical initiator.

Packaging

250, 500 g in poly bottle
5 g in glass bottle

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

359.6 °F - closed cup

Flash Point(C)

182 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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