description
non-ionic
form
viscous liquid
mol wt
~1228
impurities
≤0.5 μmol/g Peroxides, ≤1.0 μmol/g Carbonyls, ≤3.0% water
refractive index
n20/D 1.468 (lit.)
CMC
0.06 mM (20-25°C)
transition temp
cloud point 76 °C
density
1.095 g/mL at 25 °C (lit.), 1.1 g/cm3 at 25 °C (lit.)
HLB
16.7
storage temp.
−20°C
SMILES string
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
General description
吐温®20 是属于聚山梨酯家族的聚氧乙烯山梨醇酯。它是一种非离子型除垢剂，分子量为1,225 道尔顿，包括 20 个环氧乙烷单元，1 个山梨糖醇和1个月桂酸（主要脂肪酸）。环氧乙烷亚基负责表面活性剂的亲水性，而烃链提供疏水性环境。山梨糖醇形成环氧乙烷聚合物所连接的主链。
Application
吐温 20 广泛用于多种生化应用，已被用于：
- 作为制备稳定的水包油状乳剂的乳化剂
- 膜的预提取，以去除外周蛋白（以2％用于膜结合蛋白的提取）
- 在基于膜的免疫检测中的封闭剂（通常0.05%浓度）
- 裂解哺乳动物细胞（0.005 至 0.5%浓度）
非离子洗涤剂
Other Notes
无防腐剂
Legal Information
TWEEN is a registered trademark of Croda International PLC
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存储类别
10 - Combustible liquids
wgk
WGK 1
flash_point_f
527.0 °F - Pensky-Martens closed cup
flash_point_c
275 °C - Pensky-Martens closed cup
ppe
Eyeshields, Gloves
Martindale: The Extra Pharmacopoeia, 1030-1030 null
The role of transforming growth factor beta isoforms in tendon-to-bone healing
Kim H M, et al.
Connective tissue research, 52(2), 87-98 (2011)
Detergents: an overview.
J M Neugebauer
Methods in enzymology, 182, 239-253 (1990-01-01)
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| P8341-10ML | 04061837602658 |
| P8341-5X10ML | 04061837602665 |