S-Methylisothiourea sulfate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2260-00-6 |
| Product name | S-Methylisothiourea sulfate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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) |
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Documents We Provide for S-Methylisothiourea sulfate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk S-Methylisothiourea sulfate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of S-Methylisothiourea sulfate
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of pharmaceutical intermediates (e.g., antiviral and antibacterial agents) | Used as a methylating agent or in reactions involving thiourea derivatives |
| Agriculture | Intermediate for insecticide and herbicide production | Introduces the methylisothiouronium group via chemical reaction |
| Biochemistry | Protein modification reagent (e.g., guanylation reagent) | Reacts with amino groups in proteins to introduce guanidino functionality |
| Dyes | Raw material for sulfur-containing or functional dyes | Participates in coupling or condensation reactions as a sulfur-containing structural unit |
| Electroplating | Additive in electroplating baths (enhances metal deposition performance) | Functions as a complexing agent or stabilizer in electrolytes |
Manufacturing Quality Control of S-Methylisothiourea sulfate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (S-methylisothiourea sulfate content) | Acid-base titration with NaOH | Quantifies active ingredient by back-titration after hydrolysis to release methylamine, using bromocresol green indicator. |
| Water content | Karl Fischer titration | Determines water by coulometric or volumetric reaction of iodine with water in anhydrous methanol/pyridine medium. |
| pH of aqueous solution (1% w/v) | pH meter measurement | Measures hydrogen ion activity in a standardized aqueous solution using calibrated glass electrode. |
| Heavy metals (as Pb) | Atomic absorption spectroscopy (AAS) | Quantifies total heavy metals by atomization and absorbance measurement at characteristic wavelengths after acid digestion. |
| Sulfate (SO4) content | Gravimetric analysis | Precipitates sulfate as BaSO4 under controlled conditions and determines purity by dried precipitate weight. |
| Chloride (Cl) content | Potentiometric titration with AgNO3 | Measures chloride via argentometric titration using silver nitrate and a silver/silver sulfide electrode. |
| Residue on ignition | Weight loss on ignition | Determines inorganic ash content by high-temperature incineration (500-600 C) and gravimetric analysis of residue. |
| Appearance and color | Visual inspection against standard solutions | Assesses physical state, crystallinity, and color grade by comparison to APHA or Hazen standards under controlled lighting. |
| Melting point | Capillary melting point apparatus | Determines temperature range of solid-to-liquid transition using calibrated capillary tube method per USP/EP guidelines. |
| Specific optical rotation | Polarimetry | Measures rotation of plane-polarized light induced by chiral impurities or degradation products in solution. |
| Related substances (impurities) | HPLC with UV detection | Separates and quantifies structurally related impurities (e.g., guanidine derivatives, thiourea) using reversed-phase C18 column and UV at 210 nm. |
| Loss on drying | Thermogravimetric analysis (TGA) or oven drying | Determines volatile content by mass loss after heating at 105 C for 2 hours under controlled atmospheric conditions. |
Technical Specifications of S-Methylisothiourea sulfate
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 178-182°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of S-Methylisothiourea sulfate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of S-Methylisothiourea sulfate
Industrial S-Methylisothiourea sulfate Procurement FAQ
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.
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