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
655204
TWEEN® 20
Molecular Biology Grade
Sinónimos:
Monolaurato de sorbitán polietilenglicol, Monolaurato de sorbitán polioxietileno
About This Item
Productos recomendados
Nombre del producto
TWEEN® 20, Detergent, Molecular Biology Grade, Specific gravity: 1.100-1.110 (20°C).
grado
Molecular Biology
Nivel de calidad
descripción
RTECS - TR7400000
Formulario
liquid
mol peso
~1228
fabricante / nombre comercial
Calbiochem®
condiciones de almacenamiento
OK to freeze
color
pale yellow
índice de refracción
n20/D 1.468 (lit.)
solubilidad
water: soluble
densidad
1.095 g/mL at 25 °C (lit.)
actividad extraña
DNases, proteases, RNases, none detected
Condiciones de envío
ambient
temp. de almacenamiento
15-25°C
cadena 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
Clave InChI
HMFKFHLTUCJZJO-UHFFFAOYSA-N
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Aplicación
Advertencia
Información legal
Código de clase de almacenamiento
10 - Combustible liquids
Clase de riesgo para el agua (WGK)
WGK 1
Punto de inflamabilidad (°F)
527.0 °F - Pensky-Martens closed cup
Punto de inflamabilidad (°C)
275 °C - Pensky-Martens closed cup
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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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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