Molekula
Methanesulfonic acid
Methanesulfonic acid is a strong organic acid used as a catalyst, solvent, and reagent in chemical synthesis, particularly in pharmaceuticals and fine chemicals. It is a colorless to pale yellow liquid with a pungent odor. CAS: 75-75-2, Molecular formula: CH3SO3H, Molecular weight: 96.11 g/mol. Stable at ambient storage conditions. Hazard classification includes signal word: Danger. Molekula supplies Methanesulfonic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Methanesulfonic acid is a strong organic acid used as a catalyst, solvent, and reagent in chemical synthesis, particularly in pharmaceuticals and fine chemicals. It is a colorless to pale yellow liquid with a pungent odor. CAS: 75-75-2, Molecular formula: CH3SO3H, Molecular weight: 96.11 g/mol. Stable at ambient storage conditions. Hazard classification includes signal word: Danger. Molekula supplies Methanesulfonic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear or faint yellow liquid |
| Chloride (Cl) | ≤20ppm |
| Sulfate | ≤50ppm |
| Assay | ≥99% |
| Iron (Fe) | ≤5ppm |
| Heavy Metal (Pb) | ≤5ppm |
| Colour ( Hazen ) | ≤50 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 189 C |
| Transport Class | 8 |
| Packing Group | II |
| Shelf Life | 24 months |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| CAS Number | 75-75-2 |
| Molecular Formula | CH3SO3H |
| Molecular Weight | 96.11 |
| SMILES | O=S(=O)(O)C |
| EC / UN Number | 3265 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29041050 |
| Tariff Code | 2904100090 |
Safety & GHS
-
Explosive
GHS01
-
Compressed Gas
GHS04
Hazard statements
- H290 May be corrosive to metals
- H302+312 Harmful if swallowed or in contact with skin
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H318 Causes serious eye damage
- H335 May cause respiratory irritation
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- 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
For research and industrial use only
Documents
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.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is methanesulfonic acid used for?
Methanesulfonic acid is commonly used as a catalyst in organic synthesis and as a proton source in various chemical reactions, including esterification and alkylation.
What is the chemical formula and molecular weight of methanesulfonic acid?
The formula is CH3SO3H and the molecular weight is 96.11 g/mol.
How should methanesulfonic acid be stored?
It should be stored at ambient temperature, away from moisture and incompatible materials, in a tightly sealed container.
What grade of methanesulfonic acid does Molekula supply?
Molekula supplies methanesulfonic acid in reagent grade, suitable for laboratory and industrial applications.
Can Molekula supply methanesulfonic acid in bulk?
Yes, Molekula can supply methanesulfonic acid in bulk quantities; please contact our sales team for volume pricing and delivery options.
What documentation comes with a purchase of methanesulfonic acid?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with GHS standards.
Ready to order or need a custom pack?
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