BES buffer 99% For Biochemistry
N,N-bis (2-hydroxyethyl) 2-aminoethane sulphonic acid
Product Code. |
00409 |
Grade |
For Biochemistry |
Purity |
99% |
CAS No. |
10191-18-1 |
Molecular Formula |
C6H15NO5S |
Molecular Weight |
213.25 |
H.S.Code |
2922.19900 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
White powder |
pH value |
2.5- 5.0 |
| Melting point/ Freezing point [°C] |
152 - 154 °C |
Solubility in water [% weight] |
213.3 g/l at 20 °C |
Packaging
Specification
| Appearance | White powder |
| Assay (alkalimetric) | Min 99.0% |
| Identity (IR) | Passes test |
| UV absorbance (at 250 nm; 5%; 1 cm; water) | Max 0.05% |
| Chloride (Cl) | Max 0.005% |
| Sulphate (SO4) | Max 0.005% |
| Heavy metal (as Pb) | Max 0.0005% |
| Sodium (Na) | Max 0.01% |
| Loss on drying (at 105°C) | Max 0.5% |
| Biological buffer, pKa at 20°C | 7.15 |
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Warning
Hazardous Statement: H315-H319-H335
Precaution Statement: P261-P305 + P351 + P338