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
655204
TWEEN® 20
Molecular Biology Grade
Sinónimos:
Monolaurato de sorbitán polietilenglicol, Monolaurato de sorbitán polioxietileno
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| Talla/SKU | Disponibilidad | Precio |
|---|
Acerca de este artículo
Nombre del producto
TWEEN® 20, Detergent, Molecular Biology Grade, Specific gravity: 1.100-1.110 (20°C).
grade
Molecular Biology
Quality Segment
description
RTECS - TR7400000
form
liquid
mol wt
~1228
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
color
pale yellow
refractive index
n20/D 1.468 (lit.)
mp
98.9 °C ( 98.9 °C (210.0 °F))
solubility
water: soluble
density
1.095 g/mL at 25 °C (lit.)
foreign activity
DNases, proteases, RNases, none detected
shipped in
ambient
storage temp.
15-25°C
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
Application
Legal Information
Disclaimer
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Este artículo | |||
|---|---|---|---|
| description Detergent, Molecular Biology Grade, Specific gravity: 1.100-1.110 (20°C). | description viscous liquid | description BioXtra, viscous liquid | description viscous liquid, suitable for cell culture |
| form liquid | form viscous liquid | form viscous liquid | form viscous liquid |
| grade Molecular Biology | grade - | grade - | grade - |
| storage temp. 15-25°C | storage temp. - | storage temp. - | storage temp. - |
| Quality Level 100 | Quality Level 300 | Quality Level 300 | Quality Level 300 |
| solubility water: soluble | solubility - | solubility water: 0.0002 g/L at 20 °C | solubility water: soluble (Water solubility: 0,0002 g/l at 20 °C - OECD Test Guideline 105) |
| mp 98.9 °C ( 98.9 °C (210.0 °F)) | mp - | mp - | mp - |
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Clase de almacenamiento
10 - Combustible liquids
wgk
WGK 1
flash_point_f
527.0 °F - Pensky-Martens closed cup
flash_point_c
275 °C - Pensky-Martens closed cup
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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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