Cesium methanesulfonate
Cesium methanesulfonate (CAS: 2550-61-0; Formula: CH3O3SCs; Molar Mass: 228.00) is a high-purity chemical compound. As a cesium salt of methanesulfonic acid, it serves as a valuable reagent in various chemical synthesis applications and is an important inorganic salt for research and materials science. Tech Serve Solutions supplies this essential chemical for laboratory and industrial use.
- IUPAC
- CsMSF,CsMeS,Methanesulfonic acid cesium salt
- Synonyms
- CH3O3SCs, Methanesulfonic acid cesium salt, CsMSF, CsMeS

Chemical Synthesis Reagent
Cesium methanesulfonate acts as a versatile reagent in organic and inorganic synthesis. Its properties make it useful for specific chemical transformations and as a source of cesium ions in catalytic processes.
Materials Science Research
This cesium salt finds application in materials science for the development of novel materials. Its unique ionic characteristics can be leveraged in the formulation and study of advanced compounds and structures.
Inorganic Salt Applications
As a readily soluble inorganic salt, Cesium methanesulfonate can be employed in various laboratory settings where a soluble cesium source is required for ionic reactions or as a component in experimental formulations.
| Molecular weight | 228.00 |
|---|---|
| Linear formula | CH3O3SCs |
| Assay | 98% |
| Melting point | 262-264 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Cesium methanesulfonate used for?
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Cesium methanesulfonate is primarily used as a reagent in chemical synthesis and in materials science research, often serving as a source of cesium ions in various reactions and experimental setups.
What are the CAS number and formula for Cesium methanesulfonate?
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The CAS number for Cesium methanesulfonate is 2550-61-0, and its chemical formula is CH3O3SCs.
What grade and purity does Tech Serve Solutions supply for Cesium methanesulfonate?
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Tech Serve Solutions supplies Cesium methanesulfonate with an assay of 98%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated in the product specifications.
What are the safety and handling considerations for Cesium methanesulfonate?
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Cesium methanesulfonate is classified with a Warning signal word. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Recommended personal protective equipment includes a dust mask (type N95), eyesshields, and gloves.
How is Cesium methanesulfonate packed, shipped, and exported?
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Tech Serve Solutions packs and ships Cesium methanesulfonate according to relevant regulations for chemical substances. We are a specialist global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents.
How can I request a sample or quote for Cesium methanesulfonate?
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To request a sample or a quote for Cesium methanesulfonate, please contact our sales team through the website or by phone. Our experts are ready to assist with your chemical sourcing needs.
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