4-BROMO PHTHALIC ANHYDRUS Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 86-90-8 |
| Product name | 4-BROMO PHTHALIC ANHYDRUS |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty 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 4-BROMO PHTHALIC ANHYDRUS
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-BROMO PHTHALIC ANHYDRUS Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-BROMO PHTHALIC ANHYDRUS
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of antitumor drug intermediates | Used as a key intermediate to construct biologically active molecular frameworks; participates in coupling reactions for targeted drug synthesis |
| Pesticides | Synthesis of insecticide and herbicide intermediates | Enables functional group introduction via bromination substitution; applied in the preparation of benzene-ring-containing pesticide active ingredients |
| Dyes | Synthesis of organic pigments and fluorescent dyes | Participates in condensation reactions to generate conjugated chromophores; used in high-performance dye manufacturing |
| High-performance polymers | Synthesis of polyimide precursors | Undergoes polymerization with diamine compounds to produce heat-resistant polyimide resins |
| Fine chemicals | Preparation of functionalized reagents | Applied in the synthesis of other brominated aromatic compounds; serves as a starting material for subsequent functional group transformations |
Manufacturing Quality Control of 4-BROMO PHTHALIC ANHYDRUS
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantitative determination using reverse-phase HPLC and UV absorbance at 254 nm relative to a certified reference standard. |
| Melting Point | Capillary melting point apparatus | Thermal transition observed as the temperature range over which solid converts to liquid, compared to literature value (130-133 C). |
| Loss on Drying | Gravimetric method (oven drying) | Mass loss measured after drying sample at 105 C for 2 hours under atmospheric pressure. |
| Residue on Ignition | Sulfated ash gravimetry | Inorganic residue mass determined after high-temperature ignition (700-800 C) following sulfuric acid treatment. |
| Chloride Impurity | Ion chromatography (IC) | Separation and quantification of chloride anion using conductivity detection after aqueous extraction. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of heavy metals after acid digestion and plasma excitation with optical emission detection. |
| Water Content | Karl Fischer titration | Volumetric or coulometric titration based on stoichiometric reaction between iodine and water in pyridine-methanol medium. |
| Organic Volatile Impurities | Gas chromatography (GC-FID) | Separation and detection of residual solvents and volatile impurities using flame ionization detection. |
| Acid Value | Acid-base titration with NaOH | Neutralization of acidic functional groups (anhydride + H2O -> diacid) using standardized sodium hydroxide solution. |
| Related Substances | HPLC with gradient elution | Identification and quantification of structurally related impurities (e.g., mono-acid, brominated isomers) using retention time and peak area comparison. |
| Particle Size Distribution | Laser diffraction | Analysis of scattered laser light intensity to determine volume-based particle size distribution in dry dispersion mode. |
| Bulk Density | Graduated cylinder method | Mass per unit volume measured by gently pouring sample into a calibrated cylinder and recording settled volume. |
Technical Specifications of 4-BROMO PHTHALIC ANHYDRUS
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 138–142°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Identification (IR) | Conforms to reference spectrum |
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-BROMO PHTHALIC ANHYDRUS
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-BROMO PHTHALIC ANHYDRUS
Packaging of 4-BROMO PHTHALIC ANHYDRUS
Industrial 4-BROMO PHTHALIC ANHYDRUS 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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