2,6-DIHYDROXYTEREPHTHALIC ACID Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 69660-39-5 |
| Product name | 2,6-DIHYDROXYTEREPHTHALIC ACID |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty GradeElectronic GradeMaterial 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 2,6-DIHYDROXYTEREPHTHALIC ACID
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,6-DIHYDROXYTEREPHTHALIC ACID Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,6-DIHYDROXYTEREPHTHALIC ACID
| Industry | Application | Process |
|---|---|---|
| Polymers | Copolymer monomer for high-performance engineering plastics, such as polyesters and polyamides | Used in condensation polymerization with diols or diamines to produce specialty polymers with high thermal stability and chemical resistance |
| Liquid Crystals | Structural unit of liquid crystal polymers (LCPs) | Acts as a rigid mesogenic unit in melt-phase condensation polymerization, imparting anisotropy and high dimensional stability |
| Pharmaceutical Intermediates | Synthetic precursor for anticancer agents and antimicrobial compounds | Employed in esterification, amidation, or coupling reactions to construct active molecular frameworks |
| Functional Dyes | Core structure for high-performance organic pigments and fluorescent dyes | Used in diazotization-coupling or metal complexation reactions to introduce chromophores, enhancing lightfastness |
Manufacturing Quality Control of 2,6-DIHYDROXYTEREPHTHALIC ACID
| 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 254 nm. |
| Related Substances | HPLC-UV | Separation and quantification of structurally related impurities (e.g., mono-hydroxy, tri-hydroxy, or decarboxylated analogs) using gradient HPLC-UV. |
| Residual Solvents | GC-FID | Detection and quantification of volatile organic solvents (e.g., DMF, acetic acid, methanol) by gas chromatography with flame ionization detection. |
| Heavy Metals | ICP-OES | Multi-element quantification of toxic metals (Pb, Cd, As, Hg, Cr) after acid digestion using inductively coupled plasma optical emission spectrometry. |
| Chloride Content | Ion Chromatography | Separation and conductivity-based quantification of chloride ions in aqueous extract using anion-exchange column and suppressed conductivity detection. |
| Sulfate Content | Ion Chromatography | Separation and conductivity-based quantification of sulfate ions in aqueous extract using anion-exchange column and suppressed conductivity detection. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration with iodine reagent to determine water content based on stoichiometric reaction with iodine and sulfur dioxide. |
| Ash Content | Gravimetric Analysis | Determination of inorganic residue after high-temperature incineration (550-600 C) followed by weighing of the cooled residue. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to calculate particle size distribution in a dispersed dry or wet sample. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid-to-liquid phase transition occurs, observed visually in a calibrated capillary tube. |
| pH of Aqueous Suspension | pH Meter | Measurement of hydrogen ion activity in a standardized suspension (e.g., 1% w/v in water) using a calibrated glass electrode pH meter. |
| Color (APHA) | Visual Comparison or Spectrophotometer | Evaluation of yellowness/brownness relative to APHA platinum-cobalt standards, either visually or via absorbance at 430 nm. |
Technical Specifications of 2,6-DIHYDROXYTEREPHTHALIC ACID
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 275-279°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
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 2,6-DIHYDROXYTEREPHTHALIC ACID
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,6-DIHYDROXYTEREPHTHALIC ACID
Safety Information of 2,6-DIHYDROXYTEREPHTHALIC ACID
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2,6-DIHYDROXYTEREPHTHALIC ACID
Industrial 2,6-DIHYDROXYTEREPHTHALIC 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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