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.pdf
93773
TWEEN® 20
viscosity 250-450 mPa.s (25 °C)
Synonyme(s) :
Monolaurate de polyoxyéthylènesorbitan, Monolaurate de polyéthylèneglycolsorbitan
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33,70 €
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About This Item
33,70 €
Produits recommandés
Description
non-ionic
Forme
viscous liquid
Poids mol.
~1228
Technique(s)
DNA extraction: suitable
RNA extraction: suitable
cell culture | mammalian: suitable
protein purification: suitable
Indice de réfraction
n20/D 1.468 (lit.)
n20/D 1.471
Viscosité
250-450 mPa.s(25 °C)
HLB
16.7±1.0
Densité
1.11 g/mL at 20 °C
1.095 g/mL at 25 °C (lit.)
Chaîne SMILES
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
Clé InChI
HMFKFHLTUCJZJO-UHFFFAOYSA-N
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Catégories apparentées
Description générale
Application
- as an emulsifying agent for the preparation of stable oil-in-water emulsions[2]
- in pre-extraction of membranes to remove peripheral proteins (used at 2% for extraction of membrane-bound proteins)[3]
- as a blocking agent for membrane based immunoassays at a typical concentration of 0.05% - 1%[4][5][6]
- for lysing mammalian cells at a concentration of 0.005 to 0.5%
- for rehydrating tissue before in situ hybridization[7]
Actions biochimiques/physiologiques
Caractéristiques et avantages
- Suitable for protein purification and DNA and RNA extraction
- Suitable for mammalian cell culture
- High purity product for research applications
Attention
Autres remarques
Informations légales
Produit comparable
Code de la classe de stockage
10 - Combustible liquids
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
527.0 °F - Pensky-Martens closed cup
Point d'éclair (°C)
275 °C - Pensky-Martens closed cup
Équipement de protection individuelle
Eyeshields, Gloves
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Certificats d'analyse (COA)
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Si vous avez besoin d'une version particulière, vous pouvez rechercher un certificat spécifique par le numéro de lot.
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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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