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P5413

Sigma-Aldrich

Poli(etilenglicole)

for molecular biology, average mol wt 8,000

Sinonimo/i:

PEG

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500 G
CHF 139.00
1 KG
CHF 237.00
2 KG
CHF 410.00

CHF 139.00


Spedizione prevista il26 marzo 2025


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Cambia visualizzazione
500 G
CHF 139.00
1 KG
CHF 237.00
2 KG
CHF 410.00

About This Item

Formula condensata:
H(OCH2CH2)nOH
Numero CAS:
Numero MDL:
Codice UNSPSC:
12352104
ID PubChem:
NACRES:
NA.31

CHF 139.00


Spedizione prevista il26 marzo 2025


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Grado

for molecular biology

Livello qualitativo

Stato

powder

PM

average mol wt 8,000

Solubilità

water: soluble (approximately 630 mg/ml, 20 °C)

Densità

1.0845 g/mL at 70 °C
1.0689 g/mL at 90 °C

Attività estranea

DNase, RNase and NICKase, none detected

Stringa SMILE

C(CO)O

InChI

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

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Descrizione generale

Polyethylene glycol (PEG) is a polymer of ethylene oxide and water, obtained upon condensation.[1] PEGs are susceptible to oxidative degradation in the presence of air. Minimizing the exposure of PEG to elevated temperatures and/or exposure to oxygen or addition of an antioxidant can limit the amount of degradation. PEGs do not hydrolyze or deteriorate upon storage. PEGs do not support the growth of molds.[2]
Polyethylene glycol (PEG) is used in detergents, emulsifying agents, soaps, metal costing process, pharmaceutical preparations and cosmetics.[1] PEG is commonly used as a lubricant. It′s application is also observed in chromatographic stationary phases.[2] PEG prevents crystal formation in emulsions.[3]

Applicazioni

Poly(ethylene glycol) has been used:
  • in protoplast suspension[4]
  • to prevent phase separation in emulsion[3]
  • in phage tail-like particles precipitation[5]
  • for purifying and intensifying products of polymerase chain reaction[6]

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


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Certificati d'analisi (COA)

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Contenuto correlato

Polyethylene glycol (PEG), also sometimes referred to as polyethylene oxide (PEO), is a condensation polymer of ethylene oxide and water that has several chemical properties that make it useful for biological, chemical and pharmaceutical applications.

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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