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ECO TWEEN® 20

聚氧乙烯山梨糖醇酐单月桂酸酯

品牌
Sigma-Aldrich
CAS
9005-64-5
货号
STS0200
规格纯度
viscous liquid
参考价格
698.07 *本价格含增值税费
促销
服务
  • 原厂保证
  • 包邮
  • 增值税票
数量
-+
产品名称:
9005-64-5
ECO TWEEN® 20
Tween 20
Polyethylene glycol sorbitan monolaurate
Polyoxyethylenesorbitan monolaurate
TWEEN ® 20
聚氧乙烯脱水山梨醇单月桂酸酯
聚氧乙烯山梨糖醇酐单月桂酸酯
产品介绍:

产品说明

一般描述

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. This product is a biobased surfactant and is aligned with the 7th principle of Green Chemistry "Use of Renewable Feedstocks" and the 10th principle "Design for Degradation".
TWEEN 20 is a polyoxyethylene sorbitol ester that belongs to the polysorbate family. It is a nonionic detergent having a molecular weight of 1,225 daltons, assuming 20 ethylene oxide units, 1 sorbitol, and 1 lauric acid as the primary fatty acid. The ethylene oxide subunits are responsible for the hydrophilic nature of the surfactant, while the hydrocarbon chains provide the hydrophobic environment. Sorbitol forms the backbone ring to which the ethylene oxide polymers are attached.

应用

TWEEN 20 is a nonionic detergent widely used in biochemical applications. It has been used as an emulsifying agent for the preparation of stable oil-in-water emulsions. TWEEN 20 has been used in pre-extraction of membranes to remove peripheral proteins (used at 2% for extraction of membrane-bound proteins).
TWEEN 20 has been used as a blocking agent for membrane based immunoassays at a typical concentration of 0.05%. TWEEN 20 can be used for lysing mammalian cells at a concentration of 0.005 to 0.5%.
TWEEN 20 has been used as a component of:

  • washing buffer and blocking buffer in Western blotting
  • blocking buffer in immunohistochemistry
  • washing buffer in ELISA (enzyme linked immunosorbent assay)
  • reaction mixture in PCR (polymerase chain reaction)

非离子洗涤剂

特点和优势

  • 100 % Renewable
  • 100 % Bio-based
  • Certified to the USDA BioPreferred Program
  • Lower carbon footprint than petrochemical-based versions

制备说明

TWEEN 20 is miscible in water (100mg/mL), yielding a clear, yellow solution. It is also miscible with alcohol, dioxane, and ethyl acetate. TWEEN 20 is insoluble in liquid paraffin and fixed oils.

法律信息

TWEEN is a registered trademark of Croda International PLC

基本信息

MDL编号MFCD00165986

产品性质

质量水平200
描述non-ionic
测定≥40.0% (GC)
形式viscous liquid
分子量 ~1228
组成lauric acid, ≥40% (balance primarily myristic, palmitic, and stearic acids)
环保替代产品特性Use of Renewable Feedstocks
Design for Degradation
Learn more about the Principles of Green Chemistry.
杂质≤3.0% water
折射率n20/D 1.468 (lit.)
CMC0.06 mM (20-25℃)
酸值≤2.2 mg KOH/g
羟基值96‑108 mg KOH/g
转变温度cloud point 76 ℃
密度1.095 g/mL at 25 ℃ (lit.)
HLB16.7
环保替代产品分类Aligned
InChI1S/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 keyHMFKFHLTUCJZJO-UHFFFAOYSA-N

Sigma-Aldrich

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