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
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15759
Kolliphor P 188
Synonym(e):
Poly-(ethylenglykol)-block-poly-(propylenglykol)-block-poly-(ethylenglykol), Lutrol F68, Poloxamer 188
Größe auswählen
| Größe/SKU | Verfügbarkeit | Preis |
|---|---|---|
1 kg | Warenkorb auf Verfügbarkeit prüfen | € 110,00 |
Über diesen Artikel
form
solid
Quality Segment
mol wt
~7680-9510 g/mol
composition
oxyethylene, 79.9-83.7%
impurities
≤0.25% ethylene glycol and diethylene glycol, ≤0.4% total ash, ≤1 ppm ethylene oxide, ≤1.0% water, ≤2 ppm arsenic traces, ≤20 ppm heavy metals, ≤5 ppm dioxan, ≤5 ppm propylene oxide, 50-150 ppm butylhydroxytoluene
ign. residue
≤0.30%
color
APHA: ≤120, 50/50 in CH3OH
pH
5.0-7.5 (100 g/L in H2O), 6.0-7.5 (25 g/L in H2O)
CMC
0.48 mM
transition temp
cloud point >100 °C
HLB
>24
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
- Stabilizing Function of P 188 in Dermal Formulations: Examined for its stabilizing effects on industrial concentrates of dermal hesperidin smartCrystals, P 188 contributed to enhancing the long-term stability of the formulations, relevant for dermal therapeutic interventions (Romero et al., 2015).
Biochem/physiol Actions
Other Notes
Legal Information
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Dieser Artikel | |||
|---|---|---|---|
| description - | description European Pharmacopoeia (EP) Reference Standard | description solid | description European Pharmacopoeia (EP) Reference Standard |
| form solid | form - | form solid | form - |
| Quality Level 200 | Quality Level - | Quality Level 300 | Quality Level - |
| impurities ≤5 ppm propylene oxide, ≤1.0% water, ≤0.25% ethylene glycol and diethylene glycol, ≤1 ppm ethylene oxide, ≤5 ppm dioxan, 50-150 ppm butylhydroxytoluene, ≤20 ppm heavy metals, ≤0.4% total ash, ≤2 ppm arsenic traces | impurities - | impurities - | impurities - |
| mol wt ~7680-9510 g/mol | mol wt - | mol wt 8.400 g/mol | mol wt - |
| HLB >24 | HLB - | HLB - | HLB - |
| CMC 0.48 mM | CMC - | CMC - | CMC - |
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Lagerklasse
11 - Combustible Solids
wgk
WGK 1
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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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