H8651
 |  |  |
 |
Image
Useful Links & Tools
- MSDS
- Specification Sheet
- Certificate of Analysis
- Certificate of Origin
- H8651 - Product Information Sheet (21 KB)
- HEPES Sodium Salt Specification Chart (117 KB )
- FT-IR Raman
- FT-IR Condensed Phase
H8651
Sigma
HEPES sodium salt
SigmaUltra, ≥99.5% (titration)
| Synonym: | 4-(2-Hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt, N-(2-Hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid) sodium salt |
| CAS Number: | 75277-39-3 |
| Linear Formula: | C8H17N2NaO4S |
| Molecular Weight: | 260.29 |
| EC Number: | 278-169-7 |
| MDL number: | MFCD00036463 |
| PubChem Substance ID: | 24895527 |
Description
| Other Notes | Easily compare specifications for HEPES sodium salt products with the HEPES sodium salt specification table. |
Properties
| grade | SigmaUltra |
| assay | ≥99.5% (titration) |
| total impurities | <0.005% Phosphorus (P) |
| <0.1% Insoluble matter | |
| pH | 10.0-12.0 (20 °C, 1 M in H2O) |
| useful pH range | 6.8 - 8.2 |
| pKa (25 °C) | 7.5 |
| EQP level | Elite |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| anion traces | chloride (Cl-): <0.05% |
| sulfate (SO42-): <0.05% | |
| cation traces | Al: <0.0005% |
| Ca: <0.0005% | |
| Cu: <0.0005% | |
| Fe: <0.0005% | |
| K: <0.005% | |
| Mg: <0.0005% | |
| NH4+: <0.05% | |
| Pb: <0.001% | |
| Zn: <0.0005% | |
| abs. | A |
| A |
Safety
| Personal Protective Equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
| Safety Statements | 22-24/25 |
| WGK Germany | 3 |
