As a leading producer of pharmaceutical-grade Methanesulfonyl Chloride, we guarantee ≥99.5% purity with ≤5ppm Fe/Pb impurities and ≤250ppm moisture for critical sulfonylation reactions.
CAS No.: 124-63-0
Molecular Formula: CH₃SO₂Cl
Molecular Weight: 114.55 g/mol
Synonyms: Mesyl chloride, Methylsulfonyl chloride, MsCl, MSC
📦 Features
- Ultra-High Purity
≥99.5% assay purity with ≤5 ppm heavy metals (Fe/Pb) ensures critical reactions in pharmaceutical synthesis proceed without side reactions or catalyst poisoning. - Exceptional Clarity & Stability
APHA color ≤20 and water content ≤250 ppm guarantee optimal shelf life and batch-to-batch consistency for GMP manufacturing. - Precision Physical Properties
Specific gravity of 1.48 (18°C) enables accurate volumetric dosing in automated synthesis 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
- Pharmaceutical Intermediates: Synthesis of sulfonamide drugs (e.g., sulfamethoxazole), oncology APIs
- Agrochemicals: Key reagent for mesotrione-class herbicides
- Polymer Modification: Sulfonation agent for ion-exchange membranes
- Protecting Groups: Selective -OH/-NH₂ protection in peptide synthesis
🏢 Why Choose Us?
- ISO 14001:2015 certified supplier
- Over 15 years of experience in the chemical industry
- Dedicated R&D and quality control
- Global logistics support (Europe, US, Asia, Middle East)
- High-purity product with the consistent supply guarantee
📦 Packaging Options
- 30 kg / 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