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Merck

L3771

Sigma-Aldrich

十二烷基硫酸钠

BioReagent, suitable for electrophoresis, for molecular biology, ≥98.5% (GC)

别名:

SDS, 十二烷基硫酸盐 钠盐, 十二烷基硫酸钠, 月桂基硫酸盐 钠盐, 月桂基硫酸钠

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About This Item

线性分子式:
CH3(CH2)11OSO3Na
CAS号:
分子量:
288.38
Beilstein:
3599286
EC號碼:
MDL號碼:
分類程式碼代碼:
12161902
eCl@ss:
39093306
PubChem物質ID:
NACRES:
NB.22

生物源

synthetic

品質等級

等級

for molecular biology

描述

anionic

產品線

BioReagent

化驗

≥98.5% (GC)

形狀

powder

分子量

micellar 18,000

凝集数

62

技術

electrophoresis: suitable

雜質

≤2.0% water (Karl Fischer)

CMC

7-10 mM (20-25°C)

mp

204-207 °C (lit.)

轉變溫度

cloud point >100 °C

溶解度

water: soluble

密度

1.03 g/cm3 at 20 °C (68 °F)

負離子痕跡

chloride (Cl-): ≤500 ppm
phosphate (PO43-): ≤10 ppm

正離子痕跡

heavy metals (as Pb): ≤10 ppm

吸收

≤0.1 at 260 at 3%
≤0.1 at 280 at 3%

HLB

40

適合性

suitable for electrophoresis

異物活動

DNase, RNase, none detected

儲存溫度

room temp

SMILES 字串

[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 密鑰

DBMJMQXJHONAFJ-UHFFFAOYSA-M

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一般說明

十二烷基硫酸钠(SDS)也称月桂基硫酸钠,它是一种阴离子表面活性剂,广泛应用于各种科学应用,特别是分子生物学、生物化学和细胞生物学研究。它的功效来源于两性分子特性,这种特性使其可以同时与疏水和亲水分子相互作用。SDS是一种可以使蛋白质增溶和变性的多功能去污剂,这种特性使其成为蛋白质提取和纯化实验中的基本工具。在SDS-PAGE电泳中,通过破坏蛋白质结构,SDS有助于根据分子量进行蛋白质分离。

除了蛋白质分析以外,SDS的应用还包括脂质的电泳分离,从而使研究人员能够对这些重要的细胞成分进行研究和表征。此外,各种杂交和分子生物学技术中也用到了SDS,这体现了它在各种研究领域中的多功能性。SDS在离子和非离子条件下的功效进一步扩展了其用途,使其适用于各种实验环境和要求。它能够通过结合肽链并产生负电荷来裂解蛋白,从而有效消除了凝胶分离中蛋白质形状这一影响因素,确保了准确的蛋白质尺寸测定。

應用

十二烷基硫酸钠已用于:
  • 染色体免疫沉淀
  • SDS-聚丙烯酰胺凝胶电泳(SDS-PAGE)
  • 作为用于免疫印迹的放射免疫沉淀检测缓冲液的一种组分
用于增溶和蛋白质变性,适用于PAGE变性应用。 大多数蛋白质以1.4 g SDS/g 蛋白质的比例结合SDS。 相对于结合的SDS自带的总负电荷,蛋白质固有电荷几乎可忽略不计。 每种蛋白质的质荷比基本相同,且基于分子大小在凝胶中迁移。
阴离子洗涤剂

特點和優勢

  • 用于分子生物学和生物化学研究的多功能表面活性剂
  • 适用于电泳应用
  • 经测试证实重金属污染浓度低, 从而确保其适用于各种应用。

分析報告

针对用于变性聚丙烯酰胺凝胶电泳进行了测试。

訊號詞

Danger

危險分類

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Flam. Sol. 2 - Skin Irrit. 2 - STOT SE 3

標靶器官

Respiratory system

儲存類別代碼

4.1B - Flammable solid hazardous materials

水污染物質分類(WGK)

WGK 2

閃點(°F)

338.0 °F

閃點(°C)

170 °C

個人防護裝備

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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实验方案

This page shows and discusses three protocols for stripping and reprobing a western blot membrane.

Preparation of Plasmid DNA by Alkaline Lysis with SDS: Maxipreparation between Cold Spring Harbor Laboratory Press and our research team.

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