4-Bromophthalic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 6968-28-1 |
| Product name | 4-Bromophthalic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial 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-Bromophthalic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Bromophthalic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Bromophthalic acid
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as a pharmaceutical intermediate for synthesizing brominated aromatic carboxylic acid compounds | Participates in drug molecule construction via amidation, esterification, or coupling reactions |
| Materials Science | Used to synthesize high-performance polymers and functional materials | Acts as a monomer in condensation or copolymerization reactions to incorporate rigid phenyl rings and bromine functional groups |
| Organic Synthesis | Serves as a bromoarene building block for cross-coupling reactions such as Suzuki and Heck couplings | Enables metal-catalyzed coupling via the bromine atom to construct complex aromatic frameworks |
| Dyes & Pigments | Used as a dye intermediate for synthesizing lightfast brominated dyes | Introduces chromophore systems via nucleophilic substitution or condensation reactions |
| Electronic Chemicals | Used to prepare liquid crystal materials or precursors for optoelectronic functional molecules | Generates target liquid crystal or optoelectronic units through functional group transformations (e.g., reduction, transesterification) |
Manufacturing Quality Control of 4-Bromophthalic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities (e.g., 4-bromo-2-methylbenzoic acid, dibromo derivatives) using gradient HPLC-UV with relative response factors. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify common solvents (e.g., methanol, acetone, toluene) based on calibrated external standards. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration with iodine reagent; water reacts stoichiometrically with iodine and sulfur dioxide in pyridine/methanol medium. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification after acid digestion; metals emit characteristic wavelengths upon plasma excitation. |
| Chloride Impurity | Ion Chromatography | Separation of anions on anion-exchange column with suppressed conductivity detection; chloride elutes and is quantified against calibration curve. |
| Sulfated Ash | Gravimetric Analysis | Ignition at 700-800 C after sulfuric acid treatment; residual inorganic sulfate converted to stable metal sulfates, weighed as ash. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed visually or automatically; onset and clear point determined by controlled heating rate. |
| Appearance | Visual Inspection | Assessment under controlled white light against standard references for color, clarity, and presence of particulates or discoloration. |
| Acid Value | Acid-Base Titration | Neutralization of carboxylic acid groups with standardized NaOH solution using phenolphthalein indicator; calculated as mg KOH per g sample. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity versus angle to determine volume-based particle size distribution in dry or dispersed state. |
| Bulk Density | Tap Density Measurement | Mass per unit volume measured after standardized tapping (e.g., ASTM D1895); includes both bulk and tapped density values. |
Technical Specifications of 4-Bromophthalic acid
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 235-239 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=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-Bromophthalic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Bromophthalic acid
Packaging of 4-Bromophthalic acid
Industrial 4-Bromophthalic acid 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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