P8341

TWEEN^® 20

Low-peroxide; Low-carbonyls

• 別名: ポリエチレングリコールソルビタンモノラウラート, ポリオキシエチレンソルビタンモノラウラート
• CAS番号: 9005-64-5
• MDL番号: MFCD00165986
• UNSPSCコード: 12161900
• NACRES: NA.21

特性

• 品質水準: 200
• 詳細: non-ionic
• フォーム: viscous liquid
• 分子量: ~1228
• 不純物: ≤0.5 μmol/g Peroxides; ≤1.0 μmol/g Carbonyls; ≤3.0% water
• 屈折率: n20/D 1.468 (lit.)
• CMC: 0.06 mM (20-25°C)
• 転移温度: cloud point 76 °C
• 密度: 1.095 g/mL at 25 °C (lit.); 1.1 g/cm³ at 25 °C (lit.)
• HLB: 16.7
• 保管温度: −20°C
• SMILES記法: CCCCCCCCCCCC(=O)OCCOCC(C1C(C(CO1)OCCO)OCCO)OCCO
• 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

詳細

詳細

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.

アプリケーション

TWEEN 20 is widely used in several biochemical applications. It has been used:

• As an emulsifying agent for the preparation of stable oil-in-water emulsions
• In pre-extraction of membranes to remove peripheral proteins (used at 2% for extraction of membrane-bound proteins)
• As a blocking agent for membrane based immunoassays at a typical concentration of 0.05%
• For lysing mammalian cells at a concentration of 0.005 to 0.5%

非イオン界面活性剤です。

その他情報

保存料を含みません。

法的情報

TWEEN is a registered trademark of Croda International PLC

安全性情報

• 保管分類コード: 10 - Combustible liquids
• WGK: WGK 1
• 引火点(°F): 527.0 °F - Pensky-Martens closed cup
• 引火点(℃): 275 °C - Pensky-Martens closed cup
• 個人用保護具 (PPE): Eyeshields, Gloves