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TWEEN ® 20
ECO TWEEN® 20
产品价格查看更多规格...
| 产品编号 | 包装单位 | 单价(元) | 国内现货 | 国外库存 | 询价单 |
| 4077122 | 250 ML | 802 | |||
| 4077122 | 1 L | 2280 |
产品别名
9005-64-5
TWEEN ® 20
ECO TWEEN® 20
Tween 20
Polyethylene glycol sorbitan monolaurate
Polyoxyethylenesorbitan monolaurate
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
结构式
基本信息
| MDL number | MFCD00165986 |
| General description【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. |
| Application【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:
非离子洗涤剂 |
| Features and Benefits【特点和优势】 |
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| Preparation Note【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. |
| Legal Information【法律信息】 | TWEEN is a registered trademark of Croda International PLC |
产品性质
| Quality Level【质量水平】 | 200 |
| description【描述】 | non-ionic |
| Assay【测定】 | ≥40.0% (GC) |
| form【形式】 | viscous liquid |
| mol wt【分子量】 | ~1228 |
| composition【组成】 | lauric acid, ≥40% (balance primarily myristic, palmitic, and stearic acids) |
| greener alternative product characteristics【环保替代产品特性】 | Use of Renewable Feedstocks Design for Degradation Learn more about the Principles of Green Chemistry. |
| impurities【杂质】 | ≤3.0% water |
| refractive index【折射率】 | n |
| CMC | 0.06 mM (20-25℃) |
| acid number【酸值】 | ≤2.2 mg KOH/g |
| Hydroxyl Value【羟基值】 | 96‑108 mg KOH/g |
| transition temp【转变温度】 | cloud point 76 ℃ |
| density | 1.095 g/mL at 25 ℃ (lit.) |
| HLB | 16.7 |
| greener alternative category【环保替代产品分类】 | Aligned |
| InChI | 1S/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 key | HMFKFHLTUCJZJO-UHFFFAOYSA-N |
