69890
 |  |  |
 |
Image
Useful Links & Tools
- MSDS
- Certificate of Analysis
- 69890 - Datasheet (41 KB )
- Bulk Quote
- Similar Products
Last 5 Products Viewed
69890
Sigma
MES hydrate
BioUltra, ≥99.5% (T)
| Synonym: | 2-(N-Morpholino)ethanesulfonic acid hydrate, 4-Morpholineethanesulfonic acid |
| CAS Number: | 4432-31-9 (anhydrous) |
| Linear Formula: | C6H13NO4S · xH2O |
| Molecular Weight: | 195.24 (anhydrous basis) |
| MDL number: | MFCD00149409 |
| PubChem Substance ID: | 24885995 |
Description
| Other Notes | Biological buffer; useful pH-range 5.8-6.51; Mobile phase component in brain tubulin isolation by amino-activated gel chromatography2; Buffer in plant tissue culture3,4. |
| Easily compare specifications for MES hydrate products with the MES hydrate specification table. |
Properties
| product line | BioUltra |
| assay | ≥99.5% (T) |
| total impurities | insoluble matter, passes filter test |
| ign. residue (900 °C) | ≤0.05% |
| pH | 2.5-4.0 (25 °C, 0.5 M in H2O) |
| useful pH range | 5.5 - 6.7 |
| pKa | 6.1 |
| solubility | H2O: 0.5 M at 20 °C, clear, colorless |
| anion traces | chloride (Cl-): ≤50 mg/kg |
| sulfate (SO42-): ≤50 mg/kg | |
| cation traces | Al: ≤5 mg/kg |
| As: ≤0.1 mg/kg | |
| Ba: ≤5 mg/kg | |
| Bi: ≤5 mg/kg | |
| Ca: ≤20 mg/kg | |
| Cd: ≤5 mg/kg | |
| Co: ≤5 mg/kg | |
| Cr: ≤5 mg/kg | |
| Cu: ≤5 mg/kg | |
| Fe: ≤5 mg/kg | |
| K: ≤50 mg/kg | |
| Li: ≤5 mg/kg | |
| Mg: ≤5 mg/kg | |
| Mn: ≤5 mg/kg | |
| Mo: ≤5 mg/kg | |
| Na: ≤50 mg/kg | |
| Ni: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| Sr: ≤5 mg/kg | |
| Zn: ≤5 mg/kg | |
| λ | 0.5 M in H2O |
| UV absorption | λ: 260 nm Amax: 0.025 |
| λ: 280 nm Amax: 0.020 |
Safety
| Personal Protective Equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
| Safety Statements | 22-24/25 |
| WGK Germany | 3 |
