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CHES (2-(Cyclohexylamino)ethanesulfonic acid) is a zwitterionic N-substituted aminosulfonic acid. CHES is used as a buffer for studying pH-dependent processes in enzymology. The compound has been shown to have an unusually high affinity for the iodoacetate binding site of liver alcohol dehydrogenase. The compound, which has a has a pKa of 9.49 at 25°C, is useful for the pH 8.6-10.0 range.
A zwitterionic buffering agent.
CHES has been used:
· as a buffer in mannanase activity assay of antarctic fungal isolates
· as a buffer for DNA digestion and labeling of 2′-deoxyadenosine 3′-monophosphate
· as a component of Wilson and Horne extraction buffer for characterization of rat plasma enzymes
Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organic nitrogen compounds |
| Classe | Organonitrogen compounds |
| Subclass | Cyclohexylamines |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Cyclohexylamines |
| Alternative Parents | Sulfonyls Organosulfonic acids Alkanesulfonic acids Dialkylamines Organopnictogen compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aliphatic homomonocyclic compounds |
| Substituents | Cyclohexylamine - Alkanesulfonic acid - Sulfonyl - Organosulfonic acid - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Secondary amine - Secondary aliphatic amine - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organosulfur compound - Amine - Aliphatic homomonocyclic compound |
| Descrição | This compound belongs to the class of organic compounds known as cyclohexylamines. These are organic compounds containing a cyclohexylamine moiety, which consist of a cyclohexane ring attached to an amine group. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Data | Item |
|---|---|---|---|
| Certificate of Analysis | Sep 08, 2026 | C110897 | |
| Certificate of Analysis | Aug 04, 2026 | C110897 | |
| Certificate of Analysis | May 22, 2026 | C110897 | |
| Certificate of Analysis | May 22, 2026 | C110897 | |
| Certificate of Analysis | Mar 14, 2026 | C110897 | |
| Certificate of Analysis | Mar 14, 2026 | C110897 | |
| Certificate of Analysis | Jan 31, 2026 | C110897 | |
| Certificate of Analysis | Sep 10, 2025 | C110897 | |
| Certificate of Analysis | Sep 10, 2025 | C110897 | |
| Certificate of Analysis | Apr 15, 2025 | C110897 | |
| Certificate of Analysis | Jan 03, 2025 | C110897 | |
| Certificate of Analysis | Aug 29, 2024 | C110897 | |
| Certificate of Analysis | Aug 19, 2024 | C110897 | |
| Certificate of Analysis | Mar 31, 2023 | C110897 | |
| Certificate of Analysis | Oct 27, 2022 | C110897 | |
| Certificate of Analysis | Sep 17, 2022 | C110897 | |
| Certificate of Analysis | Jun 04, 2022 | C110897 | |
| Certificate of Analysis | Jun 04, 2022 | C110897 |
| Solubilidade | Soluble in water (103.6 g/l) at 20 °C. |
|---|---|
| Sensibilidade | Hygroscopic;Light sensitive |
| Ponto de fusão (°C) | >300℃ |
| Peso molecular | 207.290 g/mol |
| XLogP3 | -1.200 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 4 |
| Exact Mass | 207.093 Da |
| Monoisotopic Mass | 207.093 Da |
| Topological Polar Surface Area | 74.800 Ų |
| Heavy Atom Count | 13 |
| Formal Charge | 0 |
| Complexity | 226.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |