1,7-Dihydroxynaphthalene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 575-38-2 |
| Product name | 1,7-Dihydroxynaphthalene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial 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 1,7-Dihydroxynaphthalene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1,7-Dihydroxynaphthalene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1,7-Dihydroxynaphthalene
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Intermediate for synthesizing anthraquinone-based disperse dyes, used in polyester fiber dyeing | Reacted with acyl chloride reagents (e.g., phosgene or thionyl chloride) to form acyl chlorides, followed by condensation with aromatic amines to prepare disperse dyes |
| Pharmaceutical Industry | Structural building block for antitumor agents (e.g., naphthyridine derivatives) and antimicrobial compounds | Functionalized via sulfonation, nitration, reduction, or coupling reactions to introduce pharmacophores |
| Materials Science | Precursor for functional organic semiconductor materials and fluorescent probes | Conjugated π-systems constructed via oxidative coupling or transition-metal-catalyzed C–H activation, applied in OLED or sensor material synthesis |
Manufacturing Quality Control of 1,7-Dihydroxynaphthalene
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using HPLC coupled with diode array detection; impurities quantified relative to main peak. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration with iodine-based reagent to determine water content based on stoichiometric reaction. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 700-800 C to combust organic matter, then weighing inorganic residue as sulfate ash. |
| Heavy Metals | ICP-OES | Multi-element detection after acid digestion; quantification based on characteristic atomic emission lines. |
| Chloride Impurity | Ion Chromatography | Separation of anions on ion-exchange column with conductivity detection; chloride quantified via calibration curve. |
| Sulfate Impurity | Ion Chromatography | Same as chloride but optimized for sulfate elution and detection using conductivity or suppressed conductivity. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, using calibrated capillary method per USP <741>. |
| Organic Volatile Impurities | GC-FID | Headspace or direct injection GC with flame ionization detection to identify and quantify residual solvents. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to calculate volume-based particle size distribution in suspension. |
| pH of Aqueous Suspension | Potentiometric pH Measurement | Measurement of hydrogen ion activity in saturated aqueous suspension using calibrated pH electrode. |
| Color (APHA) | Visual Comparison or Spectrophotometric Method | Comparison of sample solution color against platinum-cobalt standards or measurement of absorbance at 455 nm. |
Technical Specifications of 1,7-Dihydroxynaphthalene
| Test Item | Specification |
|---|---|
| Appearance | Brown solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 174–178°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=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 1,7-Dihydroxynaphthalene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1,7-Dihydroxynaphthalene
Packaging of 1,7-Dihydroxynaphthalene
Industrial 1,7-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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