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Documentos Principais

81260

Sigma-Aldrich

Poli(etilenoglicol)

average Mn 6,000, hydroxyl

Sinônimo(s):

PEG

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About This Item

Fórmula linear:
H(OCH2CH2)nOH
Número CAS:
Número MDL:
Código UNSPSC:
12352104
ID de substância PubChem:
NACRES:
NA.23
Preço e disponibilidade não estão disponíveis no momento.

Nome do produto

Poli(etilenoglicol), average Mn 6,000

Formulário

flakes

Nível de qualidade

peso molecular

Mn 5,000-7,000
average Mn 6,000

pH

4.5-7.5

pf

60-63 °C

Ω-final

hydroxyl

α-final

hydroxyl

cadeia de caracteres SMILES

C(CO)O

InChI

1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2

chave InChI

LYCAIKOWRPUZTN-UHFFFAOYSA-N

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Descrição geral

O polietilenoglicol (PEG) é um polímero hidrofílico. Ele pode ser facilmente sintetizado pela polimerização aniônica por abertura de anel do óxido de etileno, com diversos pesos moleculares e grupos terminais. Quando reticulado em redes, o PEG pode ter um alto teor de água, formando “hidrogéis”. A formação de hidrogéis pode ser iniciada por reticulação do PEG usando radiação ionizante ou por reticulação covalente de macrômeros de PEG com extremidades de cadeia reativas. O PEG é um material adequado para aplicações biológicas porque não provoca resposta imunológica.

Aplicação

Foi usado para modificar proteínas e peptídeos terapêuticos para aumentar sua solubilidade.
Hidrogéis de PEG fotopolimerizados têm aplicações emergentes na fabricação de barreiras bioativas e imunoisolantes para encapsulamento de células.[1]

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)


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Questions

1–2 of 2 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

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