C4H11NO3
Tris(hydroxymethyl)aminomethane Molecular biology
Molecular biology grade Tris(hydroxymethyl)aminomethane. Commonly used in buffer solutions, the pKa of Tris(hydroxymethyl)aminomethane is 8.07 at 25 °C implying an effective buffering range between pH 7.07 and 9.07.
Main characteristics
| M | 121.14 |
|---|---|
| m.p | 167-172 °C |
- Danger : P:261
Product specificities
| Appearance | White crystalline powder |
|---|---|
| Assay (T) | 99.8-100.2%w/w |
| pH (0.5M in water) | 10-11.5 |
| Solubility (0.5M in Water) | Clear colorless solution |
| Loss on drying (105°C) | max. 0.3% |
| A280nm (0.5M) | max. 0.05AU |
| Heavy metals (as Pb) | max. 0.0005% |
| Iron (Fe) | max. 0.0001% |
| DNase activity | Not detected |
| RNase activity | Not detected |
| Protease activity | Not detected |
