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M6768

Sigma-Aldrich

Methoxypolyethylene glycol 350

average mol wt 350

Synonym(s):

Polyethylene glycol, Methoxypolyethylene glycol, Poly(ethylene glycol) methyl ether, mono-Methyl polyethylene glycol 350

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About This Item

Linear Formula:
CH3O(CH2CH2O)nH
CAS Number:
9004-74-4
MDL number:
MFCD00084416
UNSPSC Code:
12161900
PubChem Substance ID:
24897113
NACRES:
NA.25
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description

non-ionic

Quality Level

200

mol wt

average mol wt 350

application(s)

microbiology

SMILES string

O(CCO)C

InChI

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

InChI key

XNWFRZJHXBZDAG-UHFFFAOYSA-N

Related Categories

General description

Methoxypolyethylene glycol 350 is a polymer similar in structure and nomenclature to polyethylene glycols. [1]

Application

Methoxypolyethylene glycol 350 has been used in a study to assess the synthesis of a new class of thermosensitive micellar cyclotriphosphazenes. [2] It has also been used in a study to investigate synthesis of a new amphiphilic poly(organophosphazene) by stepwise nucleophilic substitution. [3]

Storage Class Code

10 - Combustible liquids

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

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Certificates of Analysis (COA)

Lot/Batch Number
0000396669
0000396671
BCCL8484
0000396671
0000396669

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Poly(ethylene glycol) dimethyl ether average Mn ~500, contains 100 ppm BHT as stabilizer

Sigma-Aldrich

445886

Poly(ethylene glycol) dimethyl ether

S J Hermansky et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 35(10-11), 1031-1039 (1998-02-17)
The methoxy polyethylene glycols (MPEGs), also referred to as polyethylene glycol methyl ethers, are high molecular weight polymers similar in structure and nomenclature to the polyethylene glycols. Because of the potential for repeated cutaneous exposure of humans to MPEG-350 and
Thermosensitive and biocompatible cyclotriphosphazene micelles
U, Toti.
J. Controlled Release, 119, 7-7 (2007)
Synthesis, characterization, and tumor selectivity of a polyphosphazene-platinum(II) conjugate
Rita Song et al.
J. Controlled Release, 105, 9-9 (2005)
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
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.
View All Related Papers

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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