4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 13987-45-6 |
| Product name | 4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeMaterial GradeFood 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 4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid
| Industry | Application | Process |
|---|---|---|
| Chemical Manufacturing | Synthesis of resins and plastic additives | Used in esterification to produce unsaturated polyester resins |
| Coatings Industry | Raw material for resin synthesis | Reacted with polyols to produce unsaturated polyesters |
| Printing Inks | Pigment dispersion stabilizer | Acts as a crosslinker to improve ink weather resistance and adhesion |
| Textile Dyeing and Finishing | Dye fixing agent | Enhances dye fixation during dyeing processes |
| Adhesives | Resin modifier | Used in adhesive systems such as epoxy resins to enhance performance |
| Food Industry | Additive for food packaging materials | Incorporated into food-grade resins to improve barrier properties |
Manufacturing Quality Control of 4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reversed-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content based on the stoichiometric reaction of iodine with water in pyridine/methanol medium. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 700-800 C and weighing inorganic residue remaining after organic matter is volatilized. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of heavy metals by measuring atomic emission intensities after high-temperature plasma atomization. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride anions using suppressed conductivity detection after ion-exchange column separation. |
| Sulfated Ash | Gravimetric Analysis | Ignition of sample with sulfuric acid followed by high-temperature ashing and gravimetric determination of residual inorganic salts. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents using capillary GC with flame ionization detection. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, observed visually under controlled heating rate. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles under standardized white-light illumination. |
| Solubility in Water | Qualitative Solubility Test | Observation of complete dissolution or suspension after specified agitation time in distilled water at 25 C. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Measurement of hydrogen ion activity in a saturated aqueous solution using calibrated glass electrode and pH meter. |
| Related Substances | HPLC-DAD | Identification and quantification of structurally related impurities using HPLC with diode array detection and spectral library matching. |
Technical Specifications of 4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.5% (HPLC) |
| Melting Point | 270-274°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| 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 4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid
Safety Information of 4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic acid
Industrial 4,4'-Dihydroxybiphenyl-3,3'-dicarboxylic 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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