Ethanesulfonic acid sodium salt monohydrate
Ethanesulfonic acid sodium salt monohydrate (CAS: 308103-56-2), with the chemical formula CH3CH2SO3Na·H2O and a molecular weight of 150.13 g/mol, is a hydrated organic salt. It serves as a versatile building block and reagent in chemical synthesis, particularly within organic chemistry. This compound is a key component in the development of various chemical structures and processes, making it a valuable asset for research and industrial applications.
- IUPAC
- Sodium-ethanesulfonate monohydrate

Organic Synthesis
Utilised as a fundamental building block in the construction of more complex organic molecules. Its sulfonic acid salt structure makes it amenable to various synthetic transformations.
Chemical Research Reagent
Employed in laboratory settings for exploring novel chemical reactions and developing new synthetic methodologies. Its predictable reactivity aids in research endeavours.
Material Science
May be incorporated into the development of new materials due to the presence of the sulfonate group, potentially influencing material properties.
| Molecular weight | 150.13 |
|---|---|
| Linear formula | CH3CH2SO3Na·H2O |
| Assay | ≥98.0% (T) |
| Melting point | 248-256 °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 |
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 Ethanesulfonic acid sodium salt monohydrate used for?
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Ethanesulfonic acid sodium salt monohydrate is primarily used as a building block and reagent in organic synthesis and chemical research.
What are the CAS number and chemical formula for this compound?
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The CAS number is 308103-56-2 and the chemical formula is CH3CH2SO3Na·H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ethanesulfonic acid sodium salt monohydrate with an assay of ≥98.0% (T). We do not represent this product as USP, BP, EP, or any pharmacopoeia grade unless explicitly stated.
What are the safety and handling precautions for this chemical?
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This compound is classified with GHS07 and the signal word Warning. It carries hazard statements H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Recommended personal protective equipment includes a dust mask type N95, eyeshields, and gloves. Handle in a well-ventilated area and avoid dust formation.
How is Ethanesulfonic acid sodium salt monohydrate packed, shipped, and exported?
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Tech Serve Solutions offers this chemical in various packaging options suitable for laboratory and industrial use, adhering to international shipping regulations for chemical exports.
How can I request a sample or quote for Ethanesulfonic acid sodium salt monohydrate?
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To request a sample or a quote, please contact our sales team through the website or by calling our customer service line, referencing product CAS 308103-56-2.
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