3652-89-9 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 3652-89-9 |
| Product name | 3652-89-9 |
| 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 3652-89-9
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 3652-89-9 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 3652-89-9
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Intermediate for anticancer drugs (e.g., synthesis of E7010 analogues) | Aromatic nucleophilic substitution, coupling reactions |
| Pharmaceuticals | Synthesis of potential tyrosine kinase inhibitors | Multi-step organic synthesis |
| Organic optoelectronic materials | Intermediate for organic light-emitting diode (OLED) emitters | Aromatic amine coupling, C–H activation/functionalization |
| Organic optoelectronic materials | Precursor for hole-transport material (HTM) synthesis | Aromatic amination |
| Synthetic chemistry | Building block for aromatic compound synthesis | Electrophilic aromatic substitution, palladium-catalyzed coupling reactions |
Manufacturing Quality Control of 3652-89-9
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies 4-bromocarbazole peak area against a calibrated standard using reversed-phase chromatography and UV detection at ~280 nm. |
| Related Substances | HPLC-UV | Separates and quantifies structurally similar impurities (e.g., carbazole, 3-bromocarbazole, dibromocarbazoles) using gradient elution and UV detection. |
| Residual Solvents | GC-FID | Detects and quantifies volatile organic solvents (e.g., toluene, DMF, ethyl acetate) by gas chromatography with flame ionization detection. |
| Heavy Metals | ICP-MS | Measures trace metal contaminants (e.g., Pb, Cd, Hg, Ni) via inductively coupled plasma mass spectrometry after acid digestion. |
| Moisture Content | Karl Fischer Titration | Determines water content by coulometric or volumetric titration using iodine generation and stoichiometric reaction with water. |
| Melting Point | Capillary Melting Point Apparatus | Measures temperature range at which solid transitions to liquid, indicating purity and identity based on crystalline phase behavior. |
| Chloride Impurity | Ion Chromatography (IC) | Quantifies chloride ions (from residual HCl or chlorinated by-products) using suppressed conductivity detection after anion exchange separation. |
| Residue on Ignition | Gravimetric Analysis | Determines inorganic ash content by high-temperature incineration followed by precise weighing of non-volatile residue. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of foreign particles or discoloration against established reference standards under controlled lighting. |
| Bulk Density | ASTM D1895 | Measures mass per unit volume of freely settled powder using a standardized graduated cylinder and balance. |
| Particle Size Distribution | Laser Diffraction | Determines size distribution of solid particles by analyzing angular scattering pattern of laser light passing through dispersed sample. |
| Sulfated Ash | Gravimetric Analysis | Quantifies inorganic residue after ignition with sulfuric acid treatment, indicating sulfate-forming impurities. |
| Optical Rotation | Polarimetry | Measures specific rotation to confirm absence of chiral contamination (though 4-bromocarbazole is achiral, detects optically active impurities). |
Technical Specifications of 3652-89-9
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 192–196°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Residue on Ignition | <=0.1% |
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 3652-89-9
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 3652-89-9
Packaging of 3652-89-9
Industrial 3652-89-9 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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