2,3-NAPHTHALENEDICARBOXYLIC ACID Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 2169-87-1 |
| Product name | 2,3-NAPHTHALENEDICARBOXYLIC ACID |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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) |
QUOTE TYPE
PACKAGING TYPE
TOTAL QUANTITY(KG)
PREFERRED SHIPPING METHOD
YOUR COMPANY
YOUR E-MAIL
Calculate Summary
Based on current marketvolatility and material availability.
Documents We Provide for 2,3-NAPHTHALENEDICARBOXYLIC ACID
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,3-NAPHTHALENEDICARBOXYLIC ACID Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,3-NAPHTHALENEDICARBOXYLIC ACID
| Industry | Application | Process |
|---|---|---|
| Chemical Intermediates | Synthesis of naphthalene dicarboxylic anhydrides and naphthalene dicarboxylate esters | Reaction with acetic anhydride or acyl chlorides to form anhydrides; esterification with alcohols |
| High-Performance Polymers | Production of heat-resistant polyimide and polyester resins | Condensation polymerization with diamines (e.g., ODA) to produce polyimides; condensation polymerization with diols (e.g., EG) to produce high-performance polyesters |
| Pharmaceutical Intermediates | Construction of polycyclic aromatic scaffolds in drug molecules | Multi-step functionalization—including reduction, aminolysis, and cyclization—for incorporation into anticancer or antiviral candidate compounds |
| Dyes & Pigments | Conjugated structural unit in functional organic pigments | Coupling with azo or quinacridone chromophore systems to enhance photostability and thermal stability |
Manufacturing Quality Control of 2,3-NAPHTHALENEDICARBOXYLIC ACID
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration | Quantifies carboxylic acid groups via neutralization with standardized NaOH solution using phenolphthalein indicator. |
| Moisture Content | Karl Fischer Titration | Measures water content by coulometric or volumetric reaction of iodine with water in a methanol-based reagent. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, indicating purity and identity. |
| Loss on Drying | Gravimetric Analysis | Measures mass loss after heating at specified temperature and time to assess volatile impurities and residual solvents. |
| Residue on Ignition | Gravimetric Ashing | Quantifies non-volatile inorganic impurities remaining after high-temperature combustion. |
| Heavy Metals | ICP-OES | Detects trace metal contaminants (e.g., Pb, Cd, Hg) by atomic emission spectroscopy after acid digestion. |
| Chloride Impurity | Ion Chromatography | Separates and quantifies chloride ions using anion-exchange column and conductivity detection. |
| Sulfated Ash | Gravimetric Ashing | Measures residue after ignition with sulfuric acid treatment to detect inorganic sulfate-forming impurities. |
| Organic Impurities | HPLC-UV | Separates and detects related substances using reversed-phase chromatography with UV detection at 254 nm. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of foreign particles under controlled lighting conditions. |
| Bulk Density | Pycnometry/Graduated Cylinder Method | Determines mass per unit volume of freely settled powder using calibrated cylinder and balance. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of solid particles by analyzing angular scattering pattern of laser beam. |
Technical Specifications of 2,3-NAPHTHALENEDICARBOXYLIC ACID
| Test Item | Specification |
|---|---|
| Appearance | White to almost white crystalline powder |
| Purity | >=98.5% (by LC-MS) |
| 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 | <=10 ppm |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
|
|
Download COA of 2,3-NAPHTHALENEDICARBOXYLIC ACID
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,3-NAPHTHALENEDICARBOXYLIC ACID
Safety Information of 2,3-NAPHTHALENEDICARBOXYLIC ACID
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 2,3-NAPHTHALENEDICARBOXYLIC ACID
Industrial 2,3-NAPHTHALENEDICARBOXYLIC 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.
Use Bulk
Supply Factory
Direct ISO 9001
Certified Samples
Available Stable
Supply