Molekula
Methanesulfonic acid sodium salt
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Methanesulfonic acid sodium salt is a sodium salt of methanesulfonic acid used as a catalyst, reagent, and intermediate in organic synthesis. It is a white crystalline solid with a molecular weight of 118.09 g/mol, stable at ambient temperatures. CAS number: 2386-57-4. Signal word: Warning. Molekula supplies Methanesulfonic acid sodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £54.50 per pack ex VAT · £65.40 inc. VAT
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100 g — £175.70 per pack ex VAT · £210.84 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White/ offwhite powder |
| Assay | ≥98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 46062797 |
| CAS Number | 2386-57-4 |
| IUPAC Name | sodium methanesulfonate |
| EC Number | 219-203-2 |
| Molecular Formula | CH3NaO3S |
| Molecular Weight | 118.09 |
| Exact Mass | 117.9701 |
| SMILES | CS(=O)(=O)[O-].[Na+] |
| InChIKey | KKVTYAVXTDIPAP-UHFFFAOYSA-M |
| InChI | InChI=1S/CH4O3S.Na/c1-5(2,3)4;/h1H3,(H,2,3,4);/q;+1/p-1 |
| PubChem CID | 638112 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29041050 |
| Tariff Code | 2904100090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- CH3NaO3S
- Methanesulfonic acid, sodium salt (1:1)
- Methyl mercaptan sodium
- Methylsulfonic acid sodium salt
- sodium mesylate
- Sodium methanesulfonate
- Sodium methanesulphonate
- Sodium methyl sulfonate
Frequently asked questions
What is methanesulfonic acid sodium salt used for?
It is a neutral, non-acidic salt used as an electrolyte or supporting-electrolyte salt and as a mesylate source or reagent in organic synthesis.
What is the chemical formula and molecular weight?
The formula is CH3NaO3S and the molecular weight is 118.09 g/mol.
How should methanesulfonic acid sodium salt be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade is available?
Available in reagent grade; specific grades may vary based on customer requirements.
Can Molekula supply it in bulk?
Yes, Molekula can supply methanesulfonic acid sodium salt in bulk quantities upon request.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.