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
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この商品について
Quality Segment
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
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
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。
Other Notes
保存料を含みません。
Legal Information
TWEEN is a registered trademark of Croda International PLC
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保管分類
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)