China Factory Direct
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| CAS number | 635305-24-7 |
| Product name | 5-CHLOROTHIOPHENE-2-BORONIC ACID PINACOL ESTER |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25L/drum |
| 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 | Used as a synthetic intermediate for preparing thiophene-based drug molecules, including antitumor, antiviral, and anti-inflammatory compounds | Suzuki-Miyaura cross-coupling |
| Agrochemicals | Used to synthesize novel agrochemical or herbicidal active ingredients containing thiophene moieties | Palladium-catalyzed cross-coupling |
| Materials Science | Employed to construct thiophene functional units in conjugated polymers or organic electronic materials (e.g., OLEDs, OFETs) | Suzuki polycondensation or other metal-catalyzed coupling processes |
| Organic Synthesis | Serves as a stable, handleable boronic acid equivalent for introducing the 5-chlorothiophen-2-yl group | Functional group transformation and carbon–carbon bond formation in multistep synthesis |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification via reverse-phase HPLC with UV detection at 254 nm, using external standard calibration. |
| Related Substances | HPLC-UV | Separation and detection of impurities using gradient HPLC-UV; identification by retention time matching with reference standards. |
| Residual Solvents | GC-FID | Quantitative determination of volatile organic solvents (e.g., THF, toluene, methanol) using gas chromatography with flame ionization detection. |
| Moisture Content | Karl Fischer Titration | Coulometric or volumetric titration with iodine-based reagent to measure water content based on stoichiometric reaction. |
| Heavy Metals | ICP-MS | Multi-element quantification of toxic metals (e.g., Pb, Cd, Hg, Ni) after acid digestion, using inductively coupled plasma mass spectrometry. |
| Chloride Content | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column and conductivity detection. |
| Boron Content | ICP-OES | Quantification of total boron after microwave-assisted acid digestion, using inductively coupled plasma optical emission spectrometry. |
| Melting Point | Capillary Melting Point Apparatus | Determination of solid-to-liquid transition temperature range using calibrated capillary apparatus per USP <741>. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles under controlled white light against defined specifications. |
| Residue on Ignition | Gravimetric Analysis | Measurement of non-volatile inorganic residue after high-temperature ashing (600-800 C) and weighing. |
| Particle Size Distribution | Laser Diffraction | Size analysis of dry powder sample using Mie scattering theory applied to laser diffraction pattern. |
| pH of Aqueous Suspension | pH Meter | Measurement of pH in a standardized suspension (e.g., 1% w/v in water) using calibrated pH electrode. |
| Test Item | Specification |
|---|---|
| Appearance | Red-brown liquid |
| Purity | >=98.0% (GC-MS) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Melting Point | 45–49°C |
| Solubility | Soluble in THF, DCM, and toluene; slightly soluble in water |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() |
| Signal Word | Danger |
| 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.