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(ethylene glycol)
average MN 8,000, hydroxyl
Synonym(s):
Polyethylene glycol, PEG
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Product Name
Poly(ethylene glycol), average mol wt 8,000, powder
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key
LYCAIKOWRPUZTN-UHFFFAOYSA-N
form
powder
mol wt
average mol wt 8,000
Quality Level
greener alternative product characteristics
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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
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This Item | |||
|---|---|---|---|
| form powder | form powder | form viscous liquid | form powder |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 300 |
| mol wt average mol wt 8,000 | mol wt average Mn 3,350 | mol wt Mn 285-315, average Mn 300 | mol wt average mol wt 8,000 |
| density 1.0845 g/mL at 70 °C, 1.0689 g/mL at 90 °C | density 1.204 g/mL at 25 °C | density 1.125 g/mL at 25 °C | density 1.0845 g/mL at 70 °C, 1.0689 g/mL at 90 °C |
| solubility water: soluble (PEG is soluble in water approximately 630 mg/ml, 20 °C) | solubility - | solubility - | solubility water: soluble (approximately 630 mg/ml, 20 °C) |
| Ω-end hydroxyl | Ω-end hydroxyl | Ω-end hydroxyl | Ω-end - |
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
Storage Class
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 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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