China Factory Direct
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| CAS number | 25112-68-9 |
| Product name | 2-THIOPHENECARBOXYLIC ACID SODIUM SALT |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial 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 |
|---|---|---|
| Pharmaceuticals | Key intermediate for synthesizing antipsychotic drugs (e.g., quetiapine) | Used to prepare the quetiapine precursor via ammonolysis and salt formation with 2-thiophenecarbonyl chloride |
| Pesticides | Structural building block for synthesizing thiophene-based fungicides (e.g., thiabendazole derivatives) | Acts as a thiophene ring substituent in heterocyclic coupling reactions to construct the active molecular scaffold |
| Materials Science | Monomer for synthesizing hole-transport materials in organic light-emitting diodes (OLEDs) | Incorporated into conjugated polymer backbones via Suzuki or Stille coupling to tune energy levels and charge-carrier mobility |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration | Quantifies sodium 2-thiophenecarboxylate by back-titration with standardized HCl after hydrolysis to the free acid. |
| Moisture Content | Karl Fischer Titration | Determines water content based on stoichiometric reaction of iodine with water in a methanol-based reagent. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic impurities by weighing residue remaining after high-temperature ashing. |
| Chloride Impurity | Potentiometric Titration | Detects chloride ions using silver nitrate titrant and silver/silver chloride indicator electrode. |
| Sulfate Impurity | Turbidimetric Method | Quantifies sulfate as barium sulfate precipitate measured via light scattering at 420 nm. |
| Heavy Metals (as Pb) | Visual Limit Test (USP <231>) | Compares sample color intensity against lead standard after reaction with thioacetamide in acidic medium. |
| Iron Impurity | Atomic Absorption Spectroscopy (AAS) | Measures iron concentration by absorbance of ground-state Fe atoms at 248.3 nm in acetylene-air flame. |
| Sodium Content | Flame Photometry | Determines sodium concentration by measuring emission intensity at 589 nm in a premixed air-propane flame. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separates and quantifies residual solvents using capillary column and flame ionization detection. |
| Related Substances | High-Performance Liquid Chromatography (HPLC-UV) | Separates and detects structurally related impurities using reversed-phase C18 column and UV detection at 254 nm. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Measures hydrogen ion activity in 1% w/v aqueous solution using calibrated glass electrode system. |
| Particle Size Distribution | Laser Diffraction | Determines particle size distribution by analyzing angular variation in laser light scattering pattern. |
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (LC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Melting Point | 245–249 °C |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() |
| Signal Word | Warning |
| Safety Data Sheet | |
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.