4-Chlorophthalic anhydride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 118-45-6 |
| Product name | 4-Chlorophthalic anhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeElectronic 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 4-Chlorophthalic anhydride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Chlorophthalic anhydride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Chlorophthalic anhydride
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Synthesis of anthraquinone dye intermediates | Condensed with phenol or naphthol to prepare dye precursors |
| Pesticide Industry | Synthesis of chlorinated heterocyclic pesticide active ingredients | Used as an acylating agent in cyclization reactions to construct pesticide molecular frameworks |
| Pharmaceutical Industry | Synthesis of antibacterial and antitumor drug intermediates | Condensed with amine compounds to form imide structures for drug synthesis |
| High-Performance Polymers | Preparation of monomers for heat-resistant polyimide resins | Condensation polymerized with aromatic diamines to produce high-performance engineering plastics or film materials |
| Electronic Chemicals | Synthesis of photoresists and insulating layer materials | Used as a functional monomer in polymerization reactions to enhance material thermal stability and dielectric properties |
Manufacturing Quality Control of 4-Chlorophthalic anhydride
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantitative determination based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV absorbance at ~254 nm. |
| Melting Point | Capillary melting point apparatus | Thermal transition temperature measured by observing the solid-to-liquid phase change under controlled heating rate per ASTM D1565. |
| Loss on Drying | Gravimetric method (105 °C, 2 h) | Mass loss determined by weighing before and after drying under standardized temperature and time to assess volatile impurities and residual solvents. |
| Residue on Ignition | Sulfated ash gravimetry | Inorganic residue mass measured after high-temperature incineration (~750 °C) following sulfuric acid pretreatment per USP <281>. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of toxic metals (e.g., Pb, Cd, Hg, As) via plasma-excited atomic emission spectroscopy after acid digestion. |
| Chloride Impurities | Ion Chromatography (IC) | Separation and quantification of chloride ions using anion-exchange column and suppressed conductivity detection. |
| Related Substances | HPLC with gradient elution | Identification and quantification of structurally similar impurities (e.g., phthalic anhydride, 3-chlorophthalic anhydride) using retention time matching and relative response factors. |
| Water Content | Karl Fischer titration (coulometric) | Electrochemical determination of water content based on stoichiometric iodine generation and reaction with water in anhydrous methanol medium. |
| Appearance | Visual inspection in white-light box | Assessment of physical state, color, and presence of foreign particles or discoloration against established reference standards. |
| Bulk Density | ASTM D1895 Method A | Determination of mass per unit volume for free-flowing powder using a calibrated cylinder and tapping procedure. |
| Particle Size Distribution | Laser diffraction analysis | Measurement of size distribution based on angular dependence of scattered laser light intensity across a defined range (e.g., 0.1–1000 µm). |
Technical Specifications of 4-Chlorophthalic anhydride
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (GC) |
| Melting Point | 164.0–167.0°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 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 4-Chlorophthalic anhydride
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Chlorophthalic anhydride
Packaging of 4-Chlorophthalic anhydride
Industrial 4-Chlorophthalic anhydride 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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