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
62035
Poli(etilen glicol)-a blocchi-poli(propilen glicol)-a blocchi-poli(etilen glicol)
oxyethylene 71.5-74.9 %
Sinonimo/i:
Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)
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| A voi/SKU | Disponibilità | Prezzo |
|---|---|---|
1 kg | Spedizione prevista il10 agosto 2026daBuchs | CHF 103.00 |
Informazioni su questo articolo
form
powder
Quality Segment
mol wt
average mol wt 9840 -14600 g/mol (
Molecular wei
g
composition
oxyethylene, 71.5-74.9%
impurities
≤1 ppm ethylene oxide, ≤0.25% ethylene glycol and diethylene glycol, ≤0.4% total ash, ≤0.75% water, ≤2 ppm arsenic traces, ≤20 ppm heavy metals, ≤5 ppm dioxan, ≤5 ppm propylene oxide, 50-125 ppm butylhydroxytoluene
ign. residue
≤0.30%
color
APHA: ≤120, 50/50 in CH3OH
pH
5.0-7.5 (1:40 in H2O)
solubility
10%, clear, colorless
density
1,06 g/cm3 at 25 °C
application(s)
chemicals and industrial polymers
SMILES string
O2C(C2)C.O1CC1
InChI
1S/C3H6O.C2H4O/c1-3-2-4-3;1-2-3-1/h3H,2H2,1H3;1-2H2
InChI key
RVGRUAULSDPKGF-UHFFFAOYSA-N
Application
Other Notes
1 of 1
Questo articolo | |||
|---|---|---|---|
| description oxyethylene 71.5-74.9 % | description purified, non-ionic | description EMPROVE® EXPERT, (stabilized with 70ppm BHT), Ph. Eur., ChP, JPE, NF | description European Pharmacopoeia (EP) Reference Standard |
| form powder | form powder | form solid | form - |
| application(s) chemicals and industrial polymers | application(s) - | application(s) liquid formulation | application(s) pharmaceutical (small molecule) |
| mol wt average mol wt 9840 -14600 g/mol ( | mol wt - | mol wt - | mol wt - |
| Quality Level 100 | Quality Level 100 | Quality Level 500 | Quality Level - |
| density 1,06 g/cm3 at 25 °C | density - | density 1.06 g/cm3 at 25 °C | density - |
| solubility 10%, clear, colorless | solubility soluble, clear, colorless | solubility - | solubility - |
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Classe di stoccaggio
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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I plan to dissolve the Poloxamer 407 powder (Sigma, 16758) in sterile distilled water at 4°C overnight and use it as a solution. Could you provide information on the optimal storage temperature and shelf life for the solution form?
1 answer-
There is no information available on the shelf life of Poloxamer 407 in solution. It is typically recommended to store solutions at room temperature.
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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
Helpful?
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How about the Mw of the product?
1 answer-
The average molecular weight of this product is 10000 to 14600 g/mol.
Helpful?
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is it a pharma grade ?
1 answer-
This product is not pharma grade.
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