TWEEN® 20
SIAL/P6585 - Low-peroxide; Low-carbonyls
Synonym: Polyethylene glycol sorbitan monolaurate; Polyoxyethylenesorbitan monolaurate
CAS Number: 9005-64-5
MDL Number: MFCD00165986
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: P6585-100ML.
| CMC | 0.06 mM (20-25°C) |
| contains | BHT as antioxidant |
| density | 1.095 g/mL at 25 °C (lit.) |
| 1.1 g/cm3 at 25 °C (lit.) | |
| description | non-ionic |
| form | viscous liquid |
| HLB | 16.7 |
| impurities | ≤0.5 μmol/g Peroxides |
| ≤1.0 μmol/g Carbonyls | |
| ≤3.0% water | |
| InChI | 1S/C26H50O10/c1-2-3-4-5-6 |
| InChI key | HMFKFHLTUCJZJO-UHFFFAOYSA |
| mol wt | ~1228 |
| Quality Level | 200  |
| refractive index | n |
| storage temp. | 2-8°C |
| transition temp | cloud point 76 °C |
| Application: | Non-ionic detergent |
| Application: | Tween 20 has been used along with PBS to wash plates in ELISA technique. |
| 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. |
| Legal Information: | TWEEN is a registered trademark of Croda International PLC |
| Packaging: | 10, 100 mL in glass bottle |
| Preparation Note: | Purified to remove peroxides and aldehydes |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | 527.0 °F - Pensky-Martens c |
| Flash Point(C) | 275 °C - Pensky-Martens clo |
| Density | 1.095 g/mL at 25 °C (lit.); 1.1 g/cm3 at 25 °C (lit.) |
| Refractive Index | n |
| Storage Temp. | 2-8°C |
| UNSPSC | 12161900 |