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202495

Sigma-Aldrich

Poly(ethylene glycol) methyl ether

average MN 750, methoxy, hydroxyl

Sinônimo(s):

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

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About This Item

Fórmula linear:
CH3(OCH2CH2)nOH
Número CAS:
9004-74-4
Número MDL:
MFCD00084416
Código UNSPSC:
12162002
ID de substância PubChem:
24852093
NACRES:
NA.23
Preço e disponibilidade não estão disponíveis no momento.

Nome do produto

Poly(ethylene glycol) methyl ether, average Mn 750

densidade de vapor

>1 (vs air)

pressão de vapor

0.05 mmHg ( 20 °C)

Formulário

paste
solid

peso molecular

average Mn 750

índice de refração

n20/D 1.459

viscosidade

10.5 cSt(210 °F)(lit.)

temperatura de transição

Tm 30 °C

densidade

1.094 g/mL at 25 °C

Ω-final

hydroxyl

α-final

methoxy

cadeia de caracteres SMILES

O(CCO)C

InChI

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

chave InChI

XNWFRZJHXBZDAG-UHFFFAOYSA-N

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Aplicação

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.

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

359.6 °F - closed cup

Ponto de fulgor (°C)

182 °C - closed cup

Equipamento de proteção individual

Eyeshields, Gloves

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Certificados de análise (COA)

Lot/Batch Number
MKCW3308
0000214565
MKCV2901
MKCJ4912
MKBX5833V

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Lei Liu et al.
International journal of pharmaceutics, 443(1-2), 175-182 (2013-01-05)
This work aims to develop curcumin (Cur) loaded biodegradable self-assembled polymeric micelles (Cur-M) to overcome poor water solubility of Cur and to meet the requirement of intravenous administration. Cur-M were prepared by solid dispersion method, which was simple and easy
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
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

1–3 of 3 Questions  

  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

      Helpful?

  3. What is the molecular weight in g/mol for Poly(ethylene glycol) methyl ether, Mn = 750?

    1 answer

    1. Yes, as listed in the PROPERTIES section, under 'mol wt', the number average molecular weight is 750.

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