METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 4160-61-6 |
| Product name | METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25KG/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 METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Intermediate for synthesis of antibiotics and antiviral drugs | Used as a key intermediate in constructing cyclic thioester structures, enabling subsequent condensation, hydrolysis, or reduction reactions to produce sulfur-containing heterocyclic active pharmaceutical ingredients |
Manufacturing Quality Control of METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reverse-phase HPLC with UV detection at 210-230 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-UV | Separation and detection of impurities using gradient HPLC-UV; identification and quantification against reference standards or threshold limits. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify common solvents (e.g., methanol, THF, toluene) based on calibrated response factors. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine generation in pyridine-free reagent to determine water by stoichiometric reaction. |
| Acid Value | Acid-Base Titration | Titration with standardized KOH ethanol solution using phenolphthalein indicator; measures free carboxylic acid content. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and conductivity detection of chloride ions after aqueous extraction and filtration. |
| Heavy Metals (as Pb) | ICP-OES | Digestion followed by multi-element analysis via inductively coupled plasma optical emission spectroscopy; quantifies total heavy metals. |
| Residue on Ignition | Gravimetric Analysis | Ignition at 700-800 C to oxidize organic matter; residue weight reflects inorganic ash content. |
| Optical Rotation | [alpha]D Measurement | Measurement of specific rotation using sodium D-line light in a polarimeter; confirms chiral integrity and enantiomeric purity. |
| Melting Point | Capillary Melting Point Apparatus | Thermal determination of solid-to-liquid transition range using calibrated capillary apparatus per USP/Ph.Eur. guidelines. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity against specified criteria in controlled lighting conditions. |
| pH of Aqueous Solution | pH Meter | Measurement of pH in a saturated aqueous suspension using calibrated electrode; indicates acidic character from hydrolyzable ester or acid groups. |
Technical Specifications of METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Melting Point | 48–52°C |
| Identification (NMR) | Consistent with structure |
| Odor | Characteristic, mild |
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 METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE
Safety Information of METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE
Industrial METHYL TETRAHYDRO-4-OXO-2H-THIOPYRAN-3-CARBOXYLATE 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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