China Factory Direct
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| CAS number | 938043-30-2 |
| Product name | 4-(4-Methyl-1-piperazinylmethyl)benzeneboronic acid pinacol ester, 95% |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeIndustrial GradeSpecialty 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) |
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 R&D | Used as a key intermediate in the synthesis of kinase inhibitors (e.g., ALK and ROS1 inhibitors) | Suzuki–Miyaura coupling reaction |
| Medicinal Chemistry | Used to construct aromatic heterocyclic compound libraries containing piperazine motifs for high-throughput screening | Palladium-catalyzed cross-coupling reaction |
| Organic Synthesis | Used to introduce the 4-methylpiperazinylmethylphenyl moiety into target molecules | C–C bond formation using pinacol boronate esters |
| Agrochemical R&D | Used to synthesize novel agrochemical candidates with biological activity | Transition metal-catalyzed arylation reaction |
| Detection Item | Common Analytical Method | Method Overview |
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| Assay (Purity) | HPLC-UV | Quantification via UV absorption at characteristic wavelength using calibrated external standard and reverse-phase C18 column. |
| Related Substances | HPLC-UV | Separation and detection of impurities using gradient HPLC with UV detection; identification by retention time matching and peak area normalization. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify volatile organic solvents based on calibrated response factors. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine generated electrochemically to react stoichiometrically with water. |
| Heavy Metals (Total) | ICP-OES | Multi-element quantification after acid digestion by measuring atomic emission intensities at element-specific wavelengths. |
| Chloride Content | Ion Chromatography | Separation of anions on ion-exchange column followed by conductivity detection and quantification against chloride standard. |
| Residual Palladium | ICP-MS | Ultra-trace quantification of Pd after microwave-assisted digestion using mass spectrometric detection of isotope 105Pd. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed visually or automatically as solid-to-liquid phase change under controlled heating rate. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles under standardized lighting and viewing conditions. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered light intensity pattern from dispersed particles to calculate size distribution based on Mie theory. |
| Loss on Drying | Gravimetric Analysis | Mass loss measured after drying sample at specified temperature and vacuum or airflow until constant weight. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through solution, proportional to chiral compound concentration and path length. |
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Melting Point | 128-132°C |
| Identification (NMR) | Consistent with structure |
| Residue on Ignition | <=0.1% |
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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.