1,4-Benzenedicarboxylic acid, 2,5-dihydroxy-, diMethyl ester Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 5870-37-1 |
| Product name | 1,4-Benzenedicarboxylic acid, 2,5-dihydroxy-, diMethyl ester |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty 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 5870-37-1
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 5870-37-1 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 5870-37-1
| Industry | Application | Process |
|---|---|---|
| Polymers | Monomer for polyester-based liquid crystal polymers | Copolymerized with biphenol and p-hydroxybenzoic acid via melt condensation polymerization to produce high-temperature-resistant liquid crystalline polyesters |
| Organic Synthesis | Functional organic intermediate | Converted via hydrolysis, acid chlorination, and aminolysis into fluorescent dyes or ligands containing carboxylic acid or amide groups |
| Pharmaceutical R&D | Building block for drug molecules | Used to synthesize polyphenolic derivatives with antioxidant activity, serving as a structural modification unit for lead compounds |
Manufacturing Quality Control of 5870-37-1
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at 254 nm, relative to a certified reference standard. |
| Related Substances | HPLC-DAD | Separation and detection of impurities using HPLC with diode array detection; identification and quantification based on retention time and spectral match. |
| Residual Solvents | GC-FID | Detection and quantification of volatile organic solvents (e.g., methanol, DMF) using gas chromatography with flame ionization detection. |
| Moisture Content | Karl Fischer Titration | Coulometric or volumetric titration with iodine-based reagent to determine water content based on stoichiometric reaction with water. |
| Heavy Metals | ICP-OES | Simultaneous multi-element detection of Pb, Cd, Hg, As, Cr after acid digestion; quantification via calibration curves. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column with conductivity detection. |
| Sulfated Ash | Gravimetric Analysis | Incineration at 700-800 C followed by weighing of residual inorganic salts as sulfate ash. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, using calibrated capillary apparatus per USP <741>. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of visible particulates or discoloration against white background under controlled lighting. |
| Residue on Ignition | Gravimetric Analysis | Measurement of non-volatile residue after ignition at 600 C; reported as percentage weight loss. |
| Acidity (Free Acid) | Acid-Base Titration | Titration with standardized NaOH solution using phenolphthalein indicator to quantify free carboxylic acid groups. |
| Particle Size Distribution | Laser Diffraction | Measurement of particle size distribution in dispersed phase using Mie scattering theory and optical detection. |
Technical Specifications of 5870-37-1
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 230–234 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=20 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 5870-37-1
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 5870-37-1
Packaging of 5870-37-1
Industrial 5870-37-1 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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