CAS Number
124-63-0


High-Purity Methanesulfonyl Chloride (MsCl) for Critical Synthesis
Reliable supply of ≥99.5% purity mesyl chloride, engineered for pharmaceutical intermediates, sulfonylation reactions, and high-precision chemical processes.
QUICK PRODUCT SNAPSHOT:
- Chemical Name: Methanesulfonyl Chloride
- CAS No.: 124-63-0
- Molecular Formula: CH₃SO₂Cl
- Molecular Weight: 114.55 g/mol
- Packaging: Drum / IBC / ISO Tank
- Synonyms: Mesyl chloride, Methylsulfonyl chloride, MsCl, MSC
- Appearance: Colorless to pale yellow liquid
Features
- Ultra-High Purity for Critical Reactions: ≥99.5% purity with extremely low metal impurities ensures clean sulfonylation reactions without catalyst poisoning or side reactions.
- Controlled Moisture for Process Stability: Low water content (≤250 ppm) supports sensitive synthesis and reproducible yields, especially in pharmaceutical manufacturing.
- Excellent Stability & Consistency: Low color (APHA ≤20) and strict QC control ensure batch-to-batch consistency for GMP-oriented processes.
- Optimized Physical Properties: Consistent density enables accurate dosing in automated and continuous production systems.
Specifications
| Parameter | Specification |
|---|---|
| Appearance | Colorless to pale yellow clear liquid |
| Purity (GC) | ≥ 99.5% |
| Water Content | ≤ 250 ppm |
| Dimethyl Disulfide | ≤ 0.05% |
| Iron (Fe) | ≤ 5 ppm |
| Heavy Metals (as Pb) | ≤ 5 ppm |
| Color (Hazen) | ≤ 20 |
| Density (20°C) | 1.48 ± 0.01 g/cm³ |
| Boiling Point | 161°C (decomposes) |
Applications
Why Choose Our MsCl?
Packaging Options
- 30kg / 200 kg HDPE drum
- 1000 kg IBC Drum
- ISO tank container
- Custom packaging available upon request


Shipping & Delivery
- Lead time: 7–10 working days
- Shipping terms: FOB / CIF / DDU
- UN No.: 3246 | Hazard Class: 8 (Corrosive)
- HS Code: 29041090
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