Key Information
- Product Name: Methanesulfonyl Chloride
- Synonyms: Methylsulfonyl chloride; Mesyl chloride; Methanesulfonic acid chloride
- CAS Number: 124-63-0
- Molecular Formula: CH₃SO₂Cl
- Molecular Weight: 114.6
Technical Specifications
| Parameter | Specification |
|---|---|
| Appearance | Colorless to yellowish clear oily liquid |
| Purity | ≥ 99.8% (≥ 99.5% available) |
| Color (APHA) | ≤ 20 |
| Moisture | ≤ 150 ppm (≤ 200 ppm optional) |
| Iron (Fe) | ≤ 10 ppm |
| Heavy Metals (Pb) | ≤ 10 ppm |
Applications
Methanesulfonyl Chloride is widely used in:
Pharmaceutical Synthesis
- Key reagent for mesylate formation (leaving group in organic synthesis)
- Used in API and intermediate production
Agrochemicals
- Intermediate in the manufacture of pesticides and crop protection chemicals
Fine Chemicals & Dyes
- Essential for sulfonylation reactions in dyes and specialty materials
Chemical Processing
- Functions as a chlorinating and activating agent in various reactions
Packaging Options
- 250 kg PE-lined steel drum
- 250 kg PE drum
- ISO tank (bulk supply available)
Storage & Handling
Store in a cool, dry, and well-ventilated area. Keep containers tightly closed and protected from moisture. Handle under appropriate safety conditions, as MsC is moisture-sensitive and reactive.