≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Cesium methanesulfonate has been studied as a current carrier where the cesium blocks the potassium channel and the methanesulfonate is restricted from crossing through chloride channels.
product description：
Cesium methanesulfonate is used as a component of intracellular recording solutions of electrodes for patch clamp techniques in cell electrophysiology studies. Cesium methanesulfonate is used as an current carrier as cesium acts as a potassium (K+) channel blocker, while methanesulfonate is not transported through chloride (Cl-) channels.
application：
Cesium methanesulfonate has been used as a supplement in intracellular solution for the patch clamp recording system.
| Pubchem Sid | 488195112 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488195112 |
| Canonical Smiles | CS(=O)(=O)[O-].[Cs+] |
| IUPAC Name | cesium;methanesulfonate |
| InChIKey | DJKJXRLREATOMF-UHFFFAOYSA-M |
| INCHI | 1S/CH4O3S.Cs/c1-5(2,3)4;/h1H3,(H,2,3,4);/q;+1/p-1 |
| Isomeric SMILES | CS(=O)(=O)[O-].[Cs+] |
| WGK Germany | 3 |
| Molecular Weight | 228.00 |
| Reaxy-Rn | 3705355 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3705355&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organic acids and derivatives |
| Class | Organic sulfonic acids and derivatives |
| Subclass | Organosulfonic acids and derivatives |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Organosulfonic acids |
| Alternative Parents | Sulfonyls Methanesulfonates Alkanesulfonic acids Organic alkali metal salts Organic oxides Hydrocarbon derivatives Organic cations |
| Molecular Framework | Aliphatic acyclic compounds |
| Substituents | Alkanesulfonic acid - Sulfonyl - Organosulfonic acid - Methanesulfonate - Organic alkali metal salt - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organic salt - Organosulfur compound - Organic cation - Aliphatic acyclic compound |
| Description | This compound belongs to the class of organic compounds known as organosulfonic acids. These are compounds containing the sulfonic acid group, which has the general structure RS(=O)2OH (R is not a hydrogen atom). |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 H2301533 | Certificate of Analysis | May 11, 2026 | C334158 |
| H2301600 | Certificate of Analysis | May 11, 2026 | C334158 |
| K2209461 | Certificate of Analysis | Aug 12, 2025 | C334158 |
| B2625192 | Certificate of Analysis | Jan 20, 2025 | C334158 |
| D2507413 | Certificate of Analysis | Jan 20, 2025 | C334158 |
| D2518518 | Certificate of Analysis | Jan 20, 2025 | C334158 |
| F2608057 | Certificate of Analysis | Jan 20, 2025 | C334158 |
| H2301544 | Certificate of Analysis | Jul 08, 2023 | C334158 |
| K2209443 | Certificate of Analysis | Aug 22, 2022 | C334158 |
| F2214832 | Certificate of Analysis | May 24, 2022 | C334158 |
| F2214833 | Certificate of Analysis | May 24, 2022 | C334158 |
| Solubility | Soluble in water (50 mg/ml). |
|---|---|
| Refractive Index | n20D~1.45 (Predicted) |
| Melt Point(°C) | 262-264 °C (lit.) |
| Molecular Weight | 228.010 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 0 |
| Exact Mass | 227.886 Da |
| Monoisotopic Mass | 227.886 Da |
| Topological Polar Surface Area | 65.600 Ų |
| Heavy Atom Count | 6 |
| Formal Charge | 0 |
| Complexity | 96.500 |
| 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 | 2 |
| 1. Wei Du, Xiaomin Zhang, Songze Li, Xin Xie. (2024) Novel Perspective on Sevoflurane-Induced Cognitive Dysfunction: Implications of Neuronal SIRPα and Microglial Synaptic Remodeling. ACS Chemical Neuroscience, [PMID:39644326] [10.1021/acschemneuro.4c00485] |
