2,3-Dihydroxynaphthalene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 92-44-4 |
| Product name | 2,3-Dihydroxynaphthalene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeReagent GradeIndustrial 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 2,3-Dihydroxynaphthalene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,3-Dihydroxynaphthalene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,3-Dihydroxynaphthalene
| Industry | Application | Process Description |
|---|---|---|
| Chemical Industry | Dye Synthesis | Used as an intermediate in the production of azo and anthraquinone dyes |
| Pharmaceutical Industry | Drug Synthesis | Applied in the synthesis of pharmaceutical intermediates, including anti-inflammatory and antimicrobial agents |
| Materials Science | Polymer Synthesis | Employed as a modifying monomer for high-performance polymers such as polyesters and polyamides |
| Analytical Chemistry | Colorimetric Reagent | Used as a colorimetric reagent for metal ion detection (e.g., Fe³⁺) |
| Fine Chemicals | Fragrance Synthesis | Serves as a synthetic intermediate for certain fragrance compounds |
| Environmental Science | Pollutant Degradation Studies | Applied as a model compound in photocatalytic degradation studies of organic pollutants |
Manufacturing Quality Control of 2,3-Dihydroxynaphthalene
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Appearance | Visual Inspection | Assessment of physical state and color by observing sample in a white background under controlled lighting; acceptable as off-white to light brown crystalline solid. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, using calibrated capillary apparatus per USP <741>. |
| Loss on Drying | Gravimetric (Oven Drying) | Measurement of mass loss after drying at 105 C for 2 hours, indicating volatile impurities or residual solvents. |
| Residue on Ignition | Gravimetric (Sulfated Ash) | Mass of non-volatile residue remaining after ignition at 600 C, reflecting inorganic impurities. |
| Heavy Metals | AAS (Flame or Graphite Furnace) | Quantification of Pb, Cd, Hg, As, and other regulated metals via atomic absorption spectroscopy after acid digestion. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride ions using anion-exchange column with conductivity detection. |
| Sulfate Impurity | Turbidimetric Method | Formation of barium sulfate precipitate in acidic medium; quantified by measuring turbidity at 420 nm. |
| Related Substances | HPLC-DAD | Identification and quantification of structurally similar impurities using HPLC with diode array detection and reference standards. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration with iodine-based reagent to determine trace water content based on stoichiometric reaction. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents (e.g., methanol, acetone) using gas chromatography with flame ionization detection. |
| pH of Aqueous Suspension | pH Meter | Measurement of pH in a 1% w/v aqueous suspension using calibrated pH electrode, indicating acidic/basic impurity load. |
Technical Specifications of 2,3-Dihydroxynaphthalene
| Test Item | Specification |
|---|---|
| Appearance | Gray crystalline solid |
| Purity | >=98.5% (by LC-MS) |
| Melting Point | 162–166 °C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=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 2,3-Dihydroxynaphthalene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,3-Dihydroxynaphthalene
Packaging of 2,3-Dihydroxynaphthalene
Industrial 2,3-Dihydroxynaphthalene 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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