The product does not have a quality specification for pH and, consequently, is not tested.
Wichtige Dokumente
P2287
TWEEN® 20
viscous liquid, suitable for cell culture
Synonym(e):
Polysorbat 20, Polyethylenglykolsorbitanmonolaurat, Polyoxyethylensorbitanmonolaurat
About This Item
Empfohlene Produkte
Beschreibung
non-ionic
Form
viscous liquid
Mol-Gew.
~1228
Zusammensetzung
lauric acid, ≥40% (balance primarily myristic, palmoyic, and stearic acids)
Konzentration
≥40.0%
Methode(n)
cell culture | mammalian: suitable
Brechungsindex
n20/D 1.468 (lit.)
CMC
0.06 mM (20-25°C)
Übergangstemp.
cloud point 76 °C
Löslichkeit
water: soluble
Dichte
1.095 g/mL at 25 °C (lit.)
1.1 g/cm3 at 25 °C (lit.)
HLB
16.7
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
InChIKey
HMFKFHLTUCJZJO-UHFFFAOYSA-N
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Verwandte Kategorien
Allgemeine Beschreibung
Anwendung
TWEEN 20 dient als Blockierungsmittel für membranbasierte Immunassays bei einer typischen Konzentration von 0,05 %. TWEEN 20 kann bei einer Konzentration von 0,005 bis 0,5 % für die Lyse von Säugetierzellen verwendet werden.
Vorsicht
Angaben zur Herstellung
Rechtliche Hinweise
Lagerklassenschlüssel
10 - Combustible liquids
WGK
WGK 1
Flammpunkt (°F)
527.0 °F - Pensky-Martens closed cup
Flammpunkt (°C)
275 °C - Pensky-Martens closed cup
Persönliche Schutzausrüstung
Eyeshields, Gloves
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Organoid culture products to generate tissue and stem cell derived 3D brain, intestinal, gut, lung and cancer tumor organoid models.
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Have you ever tested the pH of TWEEN 20?
1 Antwort-
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How can I determine the shelf life / expiration / retest date of this product?
1 Antwort-
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/449/386/product-dating-information-mk.pdfHilfreich?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 Antwort-
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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