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
P2139
Poly(éthylène glycol)
average MN 8,000, hydroxyl
Synonyme(s) :
PEG
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A propos de cet article
Nom du produit
Poly(éthylène glycol), average mol wt 8,000, powder
form
powder
Quality Segment
mol wt
average mol wt 8,000
greener alternative product characteristics
Safer Solvents and Auxiliaries
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sustainability
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solubility
water: soluble (PEG is soluble in water approximately 630 mg/ml, 20 °C)
density
1.0845 g/mL at 70 °C, 1.0689 g/mL at 90 °C
Ω-end
hydroxyl
α-end
hydroxyl
greener alternative category
SMILES string
C(CO)O
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key
LYCAIKOWRPUZTN-UHFFFAOYSA-N
General description
Application
PEG can be used for the effective isolation of edible nanoparticles (ENPs) which have excellent anti-cancer and anti-inflammatory activities. PEG is a crowding agent and forms a net-like mesh in which nanovesicles are trapped and precipitated. For example, ginger-derived ENPs are isolated using a PEG-based method which is cost-effective compared to ultracentrifugation.
PEG can be used as a precursor to synthesize degradable hydrogels for the controlled release of hydrophilic and high molecular weight pharmaceuticals.
Features and Benefits
- Highstructural flexibility
- Biocompatibility
- Amphiphilicity
- Highhydration capacity
- Devoidof any steric hindrance
1 of 1
Cet article | |||
|---|---|---|---|
| form powder | form powder | form liquid | form liquid |
| mol wt average mol wt 8,000 | mol wt average mol wt 3,350 | mol wt average mol wt 400 | mol wt average mol wt 200 |
| density 1.0845 g/mL at 70 °C, 1.0689 g/mL at 90 °C | density 1.0962 g/mL at 60 °C, 1.0764 g/mL at 80 °C | density 1.1254 g/cm3 at 20 °C, 1.0930 g/cm3 at 60 °C | density - |
| greener alternative category | greener alternative category | greener alternative category | greener alternative category |
| sustainability Greener Alternative Product | sustainability Greener Alternative Product | sustainability Greener Alternative Product | sustainability Greener Alternative Product |
| solubility water: soluble (PEG is soluble in water approximately 630 mg/ml, 20 °C) | solubility water: soluble (PEG is soluble in water approximately 670 mg/ml, 20 °C) | solubility water: 100 mg/mL | solubility - |
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Classe de stockage
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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