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202509

Sigma-Aldrich

Poly(ethylene glycol) methyl ether

average Mn 2,000, methoxy, hydroxyl

Synonyme(s) :

Polyethylene glycol monomethyl ether

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About This Item

Formule linéaire :
CH3(OCH2CH2)nOH
Numéro CAS:
9004-74-4
Numéro MDL:
MFCD00084416
Code UNSPSC :
12162002
ID de substance PubChem :
24852095
Nomenclature NACRES :
NA.23
Le tarif et la disponibilité ne sont pas disponibles actuellement.

Nom du produit

Poly(ethylene glycol) methyl ether, average Mn ~2,000

Densité de vapeur

>1 (vs air)

Niveau de qualité

200

Pression de vapeur

0.05 mmHg ( 20 °C)

Forme

flakes (or pellets)

Poids mol.

average Mn ~2,000

Viscosité

54.6 cSt(210 °F)(lit.)

Température de transition

Tm 52 °C

Groupe fonctionnel

hydroxyl

Chaîne SMILES 

O(CCO)C

InChI

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

Clé InChI

XNWFRZJHXBZDAG-UHFFFAOYSA-N

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Catégories apparentées

Description générale

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.

Application

Poly(ethylene glycol) methyl ether-attached dendrimers can be used as carriers for anticancer drugs. This novel drug carrier has a biocompatible surface and an interior for the encapsulation of drugs.

It can be used as a pore-forming agent in the preparation of ultrafiltration membranes which are used in the removal of macromolecules.

It can also be used as a starting material in the preparation of a biodegradable amphiphilic copolymer of poly(L-alanine) with mPEG.

Caractéristiques et avantages

Inserting poly(ethylene glycol) methyl ether (mPEG) side chain enhances the hydrophilicity and flexibility of the polymer matrix.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

359.6 °F - closed cup

Point d'éclair (°C)

182 °C - closed cup

Équipement de protection individuelle

Eyeshields, Gloves

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Certificats d'analyse (COA)

Lot/Batch Number
0000197564
0000197564
0000338361
MKCV6083
MKCV9757

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Yi Wei et al.
Langmuir : the ACS journal of surfaces and colloids, 28(39), 13984-13992 (2012-09-04)
The microcosmic mechanisms of protein (recombinant human growth hormone, rhGH) incomplete release and stability from amphiphilic poly(monomethoxypolyethylene glycol-co-D,L-lactide) (mPEG-PLA, PELA) microspheres were investigated. PELA with different hydrophilicities (PELA-1, PELA-2, and PELA-3) based on various ratios of mPEG to PLA were
Junhwa Shin et al.
Molecular pharmaceutics, 9(11), 3266-3276 (2012-10-04)
A family of 3-methoxypoly(ethylene glycol)-vinyl ether-1,2-dioleylglycerol (mPEG-VE-DOG) lipopolymer conjugates, designed on the basis of DFT calculations to possess a wide range of proton affinities, was synthesized and tested for their hydrolysis kinetics in neutral and acidic buffers. Extruded ∼100 nm
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
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)
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.
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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