CHES
SIGMA/C8210 - BioXtra, ≥99.0% (titration)
Synonym: 2-
CAS Number: 103-47-9
Empirical Formula (Hill Notation): C8H17NO3S
Molecular Weight: 207.29
EC Number: 203-115-6
MDL Number: MFCD00003835
Linear Formula: C8H17NO3S
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: C8210-25G
This image depicts SKU: C8210-25G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: C8210-100G
This image depicts SKU: C8210-100G
| absorption | ≤0.05 at 280 in H2O at 0.5 M |
| ≤0.08 at 260 in H2O at 0.5 M | |
| anion traces | chloride (Cl-): ≤0.05% |
| sulfate (SO42-): ≤0.05% | |
| application(s) | diagnostic assay manufacturing |
| assay | ≥99.0% (titration) |
| cation traces | Al: ≤0.0005% |
| Ca: ≤0.001% | |
| Cu: ≤0.0005% | |
| Fe: ≤0.0005% | |
| K: ≤0.005% | |
| Mg: ≤0.0005% | |
| Na: ≤0.01% | |
| NH4+: ≤0.05% | |
| Pb: ≤0.001% | |
| Zn: ≤0.0005% | |
| form | powder |
| ign. residue | ≤0.1% |
| impurities | ≤0.0005% Phosphorus (P) |
| ≤0.1% Insoluble matter | |
| InChI | 1S/C8H17NO3S/c10-13(11,12 |
| InChI key | MKWKNSIESPFAQN-UHFFFAOYSA |
| pH | 3.0-5.0 (0.5 M in H2O) |
| pKa (25 °C) | 9.3 |
| product line | BioXtra |
| Quality Level | 200  |
| SMILES string | OS(=O)(=O)CCNC1CCCCC1 |
| solubility | H2O: 0.5 M, clear, colorless |
| useful pH range | 8.6-10.0 |
| Application: | CHES may be used: • for pH adjustments and as a assay buffer in catechol oxidase activity measurements(32) • as a buffer in electron paramagnetic resonance (EPR) spectroscopy and kinetic measurements(33) • as a buffer for soil solution equivalent (SSE) yeast dextrose medium for screening pH optima for growth of Aridibacter nitratireducens A24_SHP-5_238T(34) |
| General description: | CHES (2-(Cyclohexylamino) ethane sulfonic acid) is a derivative of amino acid taurine. It serves as a standard physiological buffer in the pH range of 8.5-9.5. |
| Packaging: | 25, 100 g in poly bottle |
| Hazard Codes | Xi |
| Risk Statements | 36 |
| Safety Statements | 26 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.0% (titration) |
| UNSPSC | 12161700 |