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Sigma-Aldrich

Poly(ethylene glycol) methyl ether

average MN 550, methoxy, hydroxyl

Sinónimos:

Polyethylene glycol monomethyl ether

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About This Item

Fórmula lineal:
CH3(OCH2CH2)nOH
Número de CAS:
9004-74-4
Número MDL:
MFCD00084416
Código UNSPSC:
12162002
ID de la sustancia en PubChem:
24852066
NACRES:
NA.23
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Nombre del producto

Poly(ethylene glycol) methyl ether, average Mn 550

densidad de vapor

>1 (vs air)

presión de vapor

0.05 mmHg ( 20 °C)

Formulario

semisolid

mol peso

average Mn 550

índice de refracción

n20/D 1.455

viscosidad

7.5 cSt(210 °F)(lit.)

temperatura de transición

Tm 20 °C

densidad

1.089 g/mL at 25 °C

Ω-final

hydroxyl

α-final

methoxy

cadena SMILES

O(CCO)C

InChI

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

Clave InChI

XNWFRZJHXBZDAG-UHFFFAOYSA-N

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Aplicación

Poly(ethylene glycol) methyl ether can be used as a pore-forming agent to prepare polysulfone membranes with enhanced hydrophilicity.

Poly(ethylene glycol) methyl ether-grafted polyamidoamine (PAMAM) dendrimers can be used as drug carrier systems for anticancer drugs.

Código de clase de almacenamiento

10 - Combustible liquids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

359.6 °F - closed cup

Punto de inflamabilidad (°C)

182 °C - closed cup

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Certificados de análisis (COA)

Lot/Batch Number
0000377733
0000319951
0000319951
0000377733
0000249498

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Questions

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  1. 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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  2. 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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