China Factory Direct
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| CAS number | 7143-01-3 |
| Product name | Methanesulfonic anhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Synthesis of pharmaceutical intermediates | Used in esterification and acylation reactions |
| Pesticide Industry | Preparation of sulfonylurea herbicides | Applied in sulfonylation reactions |
| Dye Industry | Synthesis of dye intermediates | Used in sulfonation and acylation reactions |
| Chemical Industry | Production of functional polymers | Employed to initiate or modify polymerization reactions |
| Organic Synthesis | Catalyst or activator | Applied in dehydration and condensation reactions |
| Test Item | Common Test Methods | Method Summary |
|---|---|---|
| Appearance | Visual Inspection | Observe the color, physical state, and transparency of the sample. The pure product should be a colorless to slightly yellow transparent liquid, free of visible impurities. |
| Purity (Main Component Content) | Gas Chromatography (GC) or Proton Nuclear Magnetic Resonance (¹H NMR) | GC: Use a capillary column with appropriate polarity and a hydrogen flame ionization detector (FID) for quantitative analysis by external standard method; ¹H NMR: Using deuterated chloroform as solvent, calculate purity by integrating characteristic peaks, with the methyl group peak (~2.8–3.0 ppm) as the main reference. |
| Water Content | Karl Fischer Titration | Determine trace moisture based on the reaction of iodine and sulfur dioxide in a pyridine/alcohol solution with water. Suitable for measuring water content in hydrolyzable substances. |
| Acid Value / Free Acid Content | Acid-Base Titration | Titrate free methanesulfonic acid in the sample using standard ethanolic sodium hydroxide solution, with phenolphthalein or potentiometric endpoint detection to assess the degree of hydrolysis. |
| Residual Solvents | Gas Chromatography (GC) | Analyze possible residual solvents (e.g., dichloromethane, toluene) based on manufacturing processes using headspace-GC, in compliance with ICH limits. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After sample digestion, determine the content of heavy metal elements such as lead, arsenic, and mercury to ensure compliance with pharmacopoeia or customer quality standards. |
| Thermal Stability | Differential Scanning Calorimetry (DSC) | Analyze exothermic or endothermic behavior of the sample during heating to evaluate decomposition temperature and thermal stability, guiding storage conditions. |
| Hydrolysis Products | High-Performance Liquid Chromatography (HPLC) or LC-MS | Detect possible hydrolysis products such as methanesulfonic acid (MsOH) to assess sample storage stability and sealing performance. |
| Test Item | Specification |
|---|---|
| Appearance | White to almost white crystalline powder |
| Purity | >=98.0% (by NMR) |
| Water Content (KF) | <=0.5% |
| Melting Point | 45-49°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Odor | Characteristic sulfonic odor |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.