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
P4338
Poly(ethylene glycol)
average MN 3,350, hydroxyl, BioXtra
Synonym(s):
Polyethylene glycol, PEG
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
1 kg | Please contact Customer Service for Availability | 856,00 PLN |
500 g | Please contact Customer Service for Availability | 1.120,00 PLN |
2 kg | Please contact Customer Service for Availability | 1.610,00 PLN |
About This Item
Product Name
Poly(ethylene glycol), BioXtra, average mol wt 3,350, powder
product line
BioXtra
Quality Segment
form
powder
mol wt
average mol wt 3,350
greener alternative product characteristics
Safer Solvents and Auxiliaries
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sustainability
Greener Alternative Product
impurities
≤0.01% Phosphorus (P), ≤0.1% Insoluble matter
solubility
water: soluble (PEG is soluble in water approximately 670 mg/ml, 20 °C)
density
1.0962 g/mL at 60 °C, 1.0764 g/mL at 80 °C
anion traces
chloride (Cl-): ≤0.05%, sulfate (SO42-): ≤0.05%
cation traces
Al: ≤0.0005%, Ca: ≤0.0005%, Cu: ≤0.0005%, Fe: ≤0.0005%, K: ≤0.005%, Mg: ≤0.0005%, NH4+: ≤0.05%, Na: ≤0.05%, Pb: ≤0.001%, Zn: ≤0.0005%
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 as an exterior coating for the pharmaceutical final dosage forms. This can avoid moisture from encountering active pharmaceutical ingredients. For example, Naproxen solid dispersions are coated with PEG by drop printing technique. The PEG layer protects the solid dispersions from moisture-accelerated crystallization and enhances their stability.
Nanostructured hydroxyapatite (HAP) can be prepared by a sol-gel technique using PEG as an organic modifier. The addition of PEG has an influence on the morphology of HAP particles. At high temperatures, more flexible PEG molecules result in the formation of large-sized HAP platelets. At low synthesis temperatures, less flexible PEG colloids form nanostructured HAP.
PEG powder can also be used as a laxative agent.
1 of 1
This Item | |||
|---|---|---|---|
| form powder | form powder | form powder | form liquid |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| mol wt average mol wt 3,350 | mol wt average mol wt 8,000 | mol wt average Mn 3,350 | mol wt average mol wt 400 |
| density 1.0962 g/mL at 60 °C, 1.0764 g/mL at 80 °C | density 1.0845 g/mL at 70 °C, 1.0689 g/mL at 90 °C | density 1.204 g/mL at 25 °C | density 1.1254 g/cm3 at 20 °C, 1.0930 g/cm3 at 60 °C |
| impurities ≤0.01% Phosphorus (P), ≤0.1% Insoluble matter | impurities - | impurities - | impurities - |
| cation traces Al: ≤0.0005%, Cu: ≤0.0005%, K: ≤0.005%, NH4+: ≤0.05%, Pb: ≤0.001%, Ca: ≤0.0005%, Mg: ≤0.0005%, Zn: ≤0.0005%, Fe: ≤0.0005%, Na: ≤0.05% | cation traces - | cation traces - | cation traces - |
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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 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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