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Merck

P6474

Sigma-Aldrich

吐温80(TWEEN® 80)

viscous liquid, Preservative Free, Low-peroxide; Low-carbonyls

别名:

Tween® 80KR, POE (20)山梨糖醇酐单油酸酯, 聚乙二醇山梨醇酐单油酸酯, 聚山梨酯 80, 聚氧乙烯山梨糖醇酐单油酸酯

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About This Item

CAS号:
MDL编号:
UNSPSC代码:
12161900
NACRES:
NA.21
价格与库存信息目前不能提供

质量水平

描述

non-ionic

表单

viscous liquid

分子量

micellar avg mol wt 79,000
average mol wt 1310

组成

Oleic acid, ~70% (balance primarily linoleic, palmitic, and stearic acids)

聚集数

60

杂质

≤0.5 μmol/g Peroxides
≤1.0 μmol/g Carbonyls
≤3.0% water

CMC

0.012 mM (20-25°C)

转变温度

cloud point 65 °C

密度

1.06 g/mL at 25 °C

HLB

15

储存温度

−20°C

SMILES字符串

CCCCCCCC/C=C/CCCCCCCC(=O)OCCOCC(C1C(CC(O1)OCCO)OCCO)OCCO

InChI

1S/C32H60O10/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-30(36)40-25-24-37-27-29(39-22-19-34)32-28(38-21-18-33)26-31(42-32)41-23-20-35/h9-10,28-29,31-35H,2-8,11-27H2,1H3/b10-9+

InChI key

RGPBUVUVZKQNHD-MDZDMXLPSA-N

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应用

非离子型去垢剂,用于哺乳动物细胞系中选择性蛋白质提取和细胞核分离。

法律信息

TWEEN is a registered trademark of Croda International PLC

储存分类代码

10 - Combustible liquids

WGK

WGK 1

闪点(°F)

>235.4 °F - closed cup

闪点(°C)

> 113 °C - closed cup

个人防护装备

Eyeshields, Gloves


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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The group IIA secretory phospholipase A2 (sPLA(2)-IIA) has been studied extensively because of its involvement in inflammatory processes. Up-regulation of this enzyme has been shown in a number of neurodegenerative diseases including cerebral ischemia and Alzheimer's disease. PX-18 is a

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. 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

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. 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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