Description

Cesium Methanesulfonate is a high-purity cesium salt of methanesulfonic acid, valued for its unique combination of high solubility and low nucleophilicity. This compound is essential in advanced chemical synthesis and specialized industrial processes where precise reactivity and ionic strength are critical. It serves key roles in the electronics, pharmaceutical, and research sectors, particularly for applications requiring a highly soluble and stable cesium source.

Application

• Electroplating & Surface Finishing: Used as an additive in specialized electroplating baths for depositing cesium-containing alloys or for modifying surface properties.
• Organic Synthesis & Catalysis: Acts as a source of cesium ions in phase-transfer catalysis and as a reagent for the preparation of cesium carboxylates and other organometallic intermediates.
• Electrolyte Formulation: Employed in the development of high-performance electrolytes for batteries and supercapacitors due to its high ionic conductivity.
• Pharmaceutical Intermediates: Utilized in the synthesis of complex drug molecules where cesium salts are required for specific coupling or deprotonation reactions.
• Research & Development: Serves as a standard or reagent in analytical chemistry and materials science research.
• Optical & Electronic Materials: Potential use in the growth of crystals or the formulation of coatings for optical and electronic devices.

Basic Information

Product Name	Cesium Methanesulfonate
CAS No.	2550-61-0
Molecular Formula	CH3CsO3S
Molecular Weight	227.98 g/mol
Synonyms	Cesium Methanesulphonate; Cesium Methylsulfonate; Methanesulfonic Acid Cesium Salt; Cesium Mesylate; Cesium Salt of Methylsulfonic Acid; CsMS; CsOMs
EINECS	219-847-4

Quality Control

Our Cesium Methanesulfonate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for research and industrial applications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality and handling.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Cesium Methanesulfonate)	≥ 98.0 %
Purity (HPLC)	≥ 97.0 %
Water Content (KF)	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 100 ppm
Sulfate (SO4)	≤ 100 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.