C58H114O26
TWEEN® 20 Molecular biology
Tween® 20 is a non-ionic surfactant used in “blocking” solutions, solubilization of membrane proteins and electrophoresis. Tween® 20 is effectively suppresses unspecific reactions between antibodies, antigens and other molecules.
Main characteristics
| M | 1227.72 |
|---|---|
| D | 1.11 |
| b.p | 100 °C |
Product specificities
| Appearance | Pale yellow viscous liquid |
|---|---|
| Density (20°C) | 1.09-1.12gr/ml |
| Heavy metals (as Pb) | max. 0.001% |
| Water (KF) | max. 3%w/w |
| Hydroxyl value | 96-108mgKOH/gr |
| Saponification value | 40-50mgKOH/gr |
| Acid value | max. 2.0mgKOH/gr |
| pH (5% in water) | 5.0-7.0 |
| Residue after ignition | max. 0.25% |
| DNase activity | Not detected |
| RNase activity | Not detected |
| Protease activity | Not detected |
