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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93773
TWEEN® 20
viscosity 250-450 mPa.s (25 °C)
Synonym(e):
Polyethylenglykolsorbitanmonolaurat, Polyoxyethylensorbitanmonolaurat
Größe auswählen
| Größe/SKU | Verfügbarkeit | Preis |
|---|---|---|
250 g | Warenkorb auf Verfügbarkeit prüfen | € 37,50 |
1 kg | Warenkorb auf Verfügbarkeit prüfen | € 117,00 |
Über diesen Artikel
description
non-ionic
Quality Segment
form
viscous liquid
mol wt
~1228
technique(s)
DNA extraction: suitable, RNA extraction: suitable, cell culture | mammalian: suitable, protein purification: suitable
refractive index
n20/D 1.468 (lit.), n20/D 1.471
viscosity
250-450 mPa.s(25 °C)
HLB value
16.7±1.0
density
1.11 g/mL at 20 °C, 1.095 g/mL at 25 °C (lit.)
SMILES string
CCCCCCCCCCCC(=O)OCCOCC(C1C(C(CO1)OCCO)OCCO)OCCO
InChI
1S/C26H50O10/c1-2-3-4-5-6-7-8-9-10-11-24(30)34-19-18-31-20-22(32-15-12-27)26-25(35-17-14-29)23(21-36-26)33-16-13-28/h22-23,25-29H,2-21H2,1H3
InChI key
HMFKFHLTUCJZJO-UHFFFAOYSA-N
General description
Application
- Als Emulgator zur Herstellung stabiler Öl-in-Wasser-Emulsionen
- Bei der Vorextraktion von Membranen zur Entfernung peripherer Proteine (in einer Konzentration von 2 % zur Extraktion membrangebundener Proteine)
- Als Blockierungsmittel in membranbasierten Immunassays, üblicherweise in einer Konzentration von 0,05 bis 1 %
- Für die Lyse von Säugetierzellen in einer Konzentration von 0,005 bis 0,5 %
- Für die Rehydrierung von Gewebe vor der In-situ-Hybridisierung
Biochem/physiol Actions
Features and Benefits
- Geeignet für die Proteinaufreinigung und die DNA- und RNA-Extraktion
- Geeignet für Säugetierzellkulturen
- Hochreines Produkt für Forschungsanwendungen
Other Notes
Legal Information
Disclaimer
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| description viscosity 250-450 mPa.s (25 °C) | description viscous liquid | description BioXtra, viscous liquid | description viscous liquid, suitable for cell culture |
| technique(s) DNA extraction: suitable, cell culture | mammalian: suitable, protein purification: suitable, RNA extraction: suitable | technique(s) cell culture | mammalian: suitable, protein purification: suitable, DNA extraction: suitable, RNA extraction: suitable | technique(s) cell culture | mammalian: suitable, hybridization: suitable, protein purification: suitable, blocking: suitable, transformation: suitable | technique(s) cell culture | mammalian: suitable |
| form viscous liquid | form viscous liquid | form viscous liquid | form viscous liquid |
| density 1.11 g/mL at 20 °C, 1.095 g/mL at 25 °C (lit.) | density 1.095 g/mL at 25 °C (lit.) | density 1.095 g/mL at 25 °C, 1.095 g/mL at 25 °C (lit.) | density 1.1 g/cm3 at 25 °C (lit.), 1.095 g/mL at 25 °C (lit.) |
| description non-ionic | description non-ionic | description non-ionic | description non-ionic |
| viscosity 250-450 mPa.s(25 °C) | viscosity - | viscosity - | viscosity - |
| mol wt ~1228 | mol wt ~1228 | mol wt ~1228 | mol wt ~1228 |
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Lagerklasse
10 - Combustible liquids
Flammpunkt (°F)
527.0 °F - Pensky-Martens closed cup
Flammpunkt (°C)
275 °C - Pensky-Martens closed cup
PSA (Persönliche Schutzausrüstung)
Eyeshields, Gloves
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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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