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/418/501/product-dating-information-06-25-mk.pdf
202398
Poly(ethylenglykol)
average Mn 400, hydroxyl
Synonym(e):
PEG
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€ 24,80
€ 27,90
€ 33,20
€ 849,00
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Produktname
Poly(ethylenglykol), average Mn 400
Form
viscous liquid
Mol-Gew.
Mn 380-420
average Mn 400
Grünere Alternativprodukt-Eigenschaften
Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
Brechungsindex
n20/D 1.466
pH-Wert
4.5-7.5
Viskosität
7.3 cSt(210 °F)(lit.)
mp (Schmelzpunkt)
4-8 °C (lit.)
Dichte
1.128 g/mL
Ω-Ende
hydroxyl
α-Ende
hydroxyl
Grünere Alternativprodukt-Kategorie
SMILES String
C(CO)O
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChIKey
LYCAIKOWRPUZTN-UHFFFAOYSA-N
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1 of 4
Dieser Artikel | 81260 | 81300 | P3515 |
|---|---|---|---|
| form viscous liquid | form flakes | form flakes | form waxy solid |
| Quality Level 200 | Quality Level 300 | Quality Level 200 | Quality Level 100 |
| mol wt Mn 380-420, average Mn 400 | mol wt Mn 5,000-7,000, average Mn 6,000 | mol wt average Mn 20,000 | mol wt average Mn 950-1,050 |
| mp 4-8 °C (lit.) | mp 60-63 °C | mp 63-66 °C | mp 39 °C (lit.) |
| density 1.128 g/mL | density - | density - | density 1.0926 g/mL at 60 °C, 1.0765 g/mL at 80 °C |
| greener alternative product characteristics Safer Solvents and Auxiliaries | greener alternative product characteristics - | greener alternative product characteristics - | greener alternative product characteristics - |
Allgemeine Beschreibung
Anwendung
Katalysatorfreie und hochselektive elektrophile Mono-Fluorierung von Acetoacetamiden: Einfache und effiziente Herstellung von 2-Fluoracetoacetamiden in PEG-400.
Rechtliche Hinweise
Ähnliches Produkt
Lagerklassenschlüssel
10 - Combustible liquids
WGK
WGK 1
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Persönliche Schutzausrüstung
Eyeshields, Gloves
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Verwandter Inhalt
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.
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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Hi, I wanted to know how did you prepare the PEG 400 into liquid form as it in my concern it might not be 100 % PEG would it be like 90% of PEG powdered form in aqueou solution or so on. I will be thankful if you provide answer of my this query.
1 answer-
The specific manufacturing process for the product is proprietary. PEG400 is a pure liquid form of polyethylene glycol with no other components, and its viscous nature is a characteristic feature of the product.
Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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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