652-03-9 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 652-03-9 |
| Product name | 652-03-9 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeElectronic GradeIndustrial 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) |
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Documents We Provide for 652-03-9
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 652-03-9 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 652-03-9
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Structural building block for synthesizing fluorinated quinolone antibiotics (e.g., ciprofloxacin derivatives) and antitumor agents | Serves as a key fluorinated aryl ring construction module; undergoes acid chlorination followed by condensation with amines to form amide bonds |
| Liquid Crystal Materials | Fluorinated rigid core structure for high-performance nematic liquid crystal monomers | Alkoxy or alkenyl side chains are introduced via esterification or coupling reactions to tune mesophase transition temperatures and birefringence |
| Organic Synthesis | Fluorinated building block in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck) | Undergoes C–C bond coupling with boronic esters or alkenes under anhydrous, oxygen-free conditions to produce polyfluorinated functional molecules |
| Polymer Materials | Building block for high-temperature- and corrosion-resistant fluorinated polyimide precursors | Reacted with diamine monomers via a two-step process (low-temperature polycondensation → high-temperature cyclization) to produce fully aromatic fluorinated polyimide films |
Manufacturing Quality Control of 652-03-9
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at 220 nm. |
| Related Substances | HPLC-DAD | Separation and identification of impurities by retention time and UV spectral match relative to main peak; detection at multiple wavelengths. |
| Residual Solvents | GC-FID | Headspace GC separation followed by flame ionization detection; quantification against calibrated solvent standards. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in anhydrous methanol/pyridine medium. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification after acid digestion, based on atomic emission intensity at element-specific wavelengths. |
| Chloride Impurity | Ion Chromatography | Separation of anions on an ion-exchange column with suppressed conductivity detection; quantified via calibration curve. |
| Sulfated Ash | Gravimetric Analysis | Incineration at 750 C to oxidize organic matter, followed by sulfuric acid treatment and final weighing of inorganic residue. |
| Melting Point | Capillary Melting Point Apparatus | Thermal determination of solid-to-liquid transition range using calibrated capillary tube method per USP <741>. |
| Particle Size Distribution | Laser Diffraction | Analysis of light scattering pattern from dispersed particles to calculate volume-based size distribution. |
| Bulk Density | ASTM D1895 | Measurement of mass per unit volume for freely settled powder in a standardized graduated cylinder. |
| pH of Aqueous Slurry | Potentiometric pH Measurement | Determination of hydrogen ion activity in a 10% w/v suspension using calibrated glass electrode system. |
| Organic Volatile Impurities (e.g., DMF, THF) | GC-MS | Gas chromatographic separation coupled to mass spectrometric detection for identification and quantification of trace volatile organics. |
Technical Specifications of 652-03-9
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 235–239 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| 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 652-03-9
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 652-03-9
Packaging of 652-03-9
Industrial 652-03-9 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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