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Merck

202495

Poly(ethylene glycol) methyl ether

average MN 750, methoxy, hydroxyl

Synonym(s):

Polyethylene glycol, Methoxy poly(ethylene glycol), Polyethylene glycol monomethyl ether, mPEG

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About This Item

Linear Formula:
CH3(OCH2CH2)nOH
CAS Number:
UNSPSC Code:
12162002
PubChem Substance ID:
NACRES:
NA.23
MDL number:
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Product Name

Poly(ethylene glycol) methyl ether, average Mn 750

vapor density

>1 (vs air)

vapor pressure

0.05 mmHg ( 20 °C)

form

paste, solid

mol wt

average Mn 750

refractive index

n20/D 1.459

viscosity

10.5 cSt(210 °F)(lit.)

transition temp

Tm 30 °C

density

1.094 g/mL at 25 °C

Ω-end

hydroxyl

α-end

methoxy

SMILES string

O(CCO)C

InChI

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

InChI key

XNWFRZJHXBZDAG-UHFFFAOYSA-N

Application

Poly(ethylene glycol) methyl ether can be used:
  • As a chain transfer agent to synthesize amphiphilic block copolymers by metal-free ring-opening oligomerization.
  • As a precursor to prepare retinoic acid-polyethylene glycol nanoassembly as an efficient drug delivery system.
  • To prepare diblock copolymer with polylactic acid, which can be applied in the field of tissue engineering and drug delivery.


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Storage Class

10 - Combustible liquids

wgk

WGK 1

flash_point_f

359.6 °F - closed cup

flash_point_c

182 °C - closed cup

ppe

Eyeshields, Gloves



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Yiyi Yu et al.
Journal of pharmaceutical sciences, 102(3), 1054-1062 (2013-01-03)
To promote the application of methoxy poly(ethylene glycol)-cholesterol (mPEG-Chol), mPEG-Chol was used to prepare core-shell micelles encapsulating poorly water-soluble docetaxel (DTX-PM) by modified cosolvent evaporation method. Approaches to enhance DTX entrapment efficiency (EE) and minimize particle size were investigated in
Pengxiang Zhao et al.
Chemical communications (Cambridge, England), 49(31), 3218-3220 (2013-03-14)
"Click" chemistry now offers access to a great variety of triazoles, and the first example of a strategy to stabilize gold nanoparticles (AuNPs) with a new 1,2,3-triazole-mPEG ligand is developed here together with preliminary examples of possible applications.
Lina Du et al.
Anti-cancer drugs, 24(2), 172-180 (2012-09-20)
A functionalized poly(amidoamine) (PAMAM) nanocarrier was designed and prepared to deliver anticancer drugs. The nanocarrier is a copolymer with a core-shell structure with 3.0 G PAMAM as the core and sequentially conjugated poly(2-(N,N-diethylamino)ethyl methacrylate) (pDEA) and methoxy-poly(ethylene glycol) 2000 (mPEG)