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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等级
ACS reagent
质量水平
描述
anionic
62
方案
≥99.0%
表单
solid
分子量
288.38 g/mol
杂质
≤0.06 meq/g Titr. Base
≥96.0% fatty alcohols
<4.0% unsulfated alcohols
缺失
≤1.0% loss on drying
mp
204-207 °C (lit.)
溶解性
H2O: soluble 1 gm in 10 ml (opalescent solution)
痕量阳离子
heavy metals (as Pb): ≤0.002%
λ
3 %H2O reference
紫外吸收
λ: 220-350 nm Amax: ≤0.1
HLB
40
SMILES字符串
[Na+].CCCCCCCCCCCCOS([O-])(=O)=O
InChI
1S/C12H26O4S.Na/c1-2-3-4-5-6-7-8-9-10-11-12-16-17(13,14)15;/h2-12H2,1H3,(H,13,14,15);/q;+1/p-1
InChI key
DBMJMQXJHONAFJ-UHFFFAOYSA-M
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一般描述
蛋白质生物化学中，SDS在蛋白质提取和SDS-PAGE（十二烷基硫酸钠-聚丙烯酰胺凝胶电泳）中起关键作用。SDS通过破坏蛋白质的二、三级结构使其变性，使所有蛋白质能以相同的线性结构在聚丙烯酰胺凝胶电泳中移动，得以按分子量大小分离。SDS-PAGE这项技术已经成为分析蛋白质大小和纯度不可或缺的工具。
除了蛋白质分析，SDS还可用于核酸提取和杂交技术。去垢剂特性可裂解细胞、溶解细胞组分，便于提取DNA和RNA。因此SDS也是各种分子生物学实验的重要工具，包括PCR（聚合酶链式反应）和Southern blotting。作为功能多样的表面活性剂，十二烷基硫酸钠可溶解、变性和分离生物分子，广泛用于细胞生物学和生化研究。
生化/生理作用
特点和优势
- 多功能表面活性剂，适合分子生物学和生物化学研究
- 经检测确证重金属污染少，适合多种用途
可比产品
警示用语：
Danger
危险分类
Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Flam. Sol. 2 - Skin Irrit. 2 - STOT SE 3
靶器官
Respiratory system
储存分类代码
4.1B - Flammable solid hazardous materials
WGK
WGK 2
闪点(°F)
338.0 °F
闪点(°C)
170 °C
个人防护装备
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
历史批次信息供参考:
分析证书(COA)
其他客户在看
实验方案
Surfactant-assisted dispersion of single-walled carbon nanotubes for debundling or exfoliation in dispersion procedures.
Surfactant-assisted dispersion of single-walled carbon nanotubes for debundling or exfoliation in dispersion procedures.
Surfactant-assisted dispersion of single-walled carbon nanotubes for debundling or exfoliation in dispersion procedures.
Surfactant-assisted dispersion of single-walled carbon nanotubes for debundling or exfoliation in dispersion procedures.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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