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
推荐产品
产品名称
聚（乙二醇）, average Mn 300
表单
viscous liquid
分子量
Mn 285-315
average Mn 300
折射率
n20/D 1.463
pH值（酸碱度）
6-7 (23 °C, at 10 g/l)
粘度
5.8 cSt(210 °F)(lit.)
mp
−15-−8 °C (lit.)
密度
1.125 g/mL at 25 °C
Mw/Mn
1.1 (typical)
Ω端
hydroxyl
α端
hydroxyl
SMILES字符串
C(CO)O
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key
LYCAIKOWRPUZTN-UHFFFAOYSA-N
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一般描述
应用
- PEG修饰提高了Bst DNA聚合酶的热稳定性和抑制剂抗性：这项研究表明，聚乙二醇(PEG)修饰显着增强了Bst DNA聚合酶的热稳定性和抑制剂抗性，突出了PEG在改善酶性能以用于生物技术应用方面的潜力（Yang等人，2024年）。
- 基于莱什曼原虫的冻干真核细胞无细胞蛋白质表达系统的开发：在无细胞蛋白质表达系统的冻干过程中加入PEG证明了其在增强生物技术工作流程的稳定性和效率中的作用（Alfaro-Palma等人，2024年）。
- 关于纳米材料和共轭聚合物中单线态氧的产生在癌症治疗光动力疗法中的综述：这篇综述重点介绍了PEG化纳米材料在光动力疗法中的应用，强调了其在提高生物相容性和癌症治疗疗效中的重要性（Singh等人，2024年）。
储存分类代码
10 - Combustible liquids
WGK
WGK 1
闪点(°F)
428.0 °F - closed cup
闪点(°C)
220.00 °C - closed cup
个人防护装备
Eyeshields, Gloves
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The present publication focuses on synthesis and characterization of nanothick, chemically grafted polymer films (polymer brushes) on various inorganic and polymeric substrates.
The present publication focuses on synthesis and characterization of nanothick, chemically grafted polymer films (polymer brushes) on various inorganic and polymeric substrates.
The present publication focuses on synthesis and characterization of nanothick, chemically grafted polymer films (polymer brushes) on various inorganic and polymeric substrates.
The present publication focuses on synthesis and characterization of nanothick, chemically grafted polymer films (polymer brushes) on various inorganic and polymeric substrates.
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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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What is the liquid assay concentration?
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The product is a pure liquid with a concentration of 100%.
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Quelle est la densité de ce PEG à 20°C ?
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The density of this product is listed in the 'PROPERTIES' section as 1.125 g/mL at 25 °C.
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What is the assay concentration of the liquid? 100%?
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This product is a neat or pure liquid with a concentration of 100 %.
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