1,8-Diaminonaphthalene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 479-27-6 |
| Product name | 1,8-Diaminonaphthalene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeReagent 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 1,8-Diaminonaphthalene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1,8-Diaminonaphthalene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1,8-Diaminonaphthalene
| Industry | Application | Process |
|---|---|---|
| Chemical Synthesis | Organic synthesis intermediate | Used as a precursor in the synthesis of heterocyclic compounds, dyes, and functional materials |
| Dyes & Pigments | Fluorescent whitening agent and dye component | Applied in diazotization and coupling reactions to prepare dye molecules with specific structures |
| Materials Science | Polymer monomer or modifier | Participates in condensation polymerization for high-performance polymers such as polyimides and polyureas |
| Analytical Chemistry | Fluorescent probe or metal ion chelating agent | Forms fluorescent complexes with metal ions (e.g., copper, zinc) via its amino group and naphthalene ring structure |
| Pharmaceutical R&D | Pharmaceutical intermediate | Used to construct nitrogen-containing heterocyclic scaffolds with biological activity |
Manufacturing Quality Control of 1,8-Diaminonaphthalene
| Test Item | Common Test Method | Method Summary |
|---|---|---|
| Purity | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column with methanol-water or acetonitrile-water as the mobile phase. Detection is performed using a UV detector (typically at 254 nm or 280 nm). The main component content is calculated by peak area normalization to assess the purity of 1,8-diaminonaphthalene. |
| Assay | Acid-Base Titration / HPLC External Standard Method | Acid-base titration exploits its weakly basic nature, using a standard hydrochloric acid solution for titration; the HPLC external standard method quantifies 1,8-diaminonaphthalene by comparing peak areas with those of a known concentration standard. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Employs a gradient elution program to separate the main peak from potential impurities (such as isomers, oxidation products, etc.). The total impurity level and individual impurity limits are controlled based on the relative peak areas. |
| Melting Point | Capillary Melting Point Method | The sample is packed into a capillary tube and heated gradually in a melting point apparatus. The temperature range from initial melting to complete melting is observed. The theoretical melting point of 1,8-diaminonaphthalene is approximately 160–163 °C, used to assess crystalline purity. |
| Loss on Drying | Loss on Drying by Oven Method | The sample is dried to constant weight at a specified temperature (e.g., 105 °C), and the percentage weight loss is calculated to evaluate moisture and volatile content. |
| Sulfated Ash (Residue on Ignition) | High-Temperature Ignition Method | The sample is charred and then ignited in a high-temperature furnace at 700–800 °C until constant weight. The residual inorganic material is weighed to determine inorganic impurity content. |
| Appearance and Color | Visual Color Comparison Method | The sample's appearance (should be white to off-white crystalline powder) and color are visually inspected under natural light or standard illumination. Comparison with standard color solutions may be performed if necessary. |
Technical Specifications of 1,8-Diaminonaphthalene
| Test Item | Specification |
|---|---|
| Appearance | Light brown solid |
| Purity | ≥98.0% |
| 1,5-Diaminonaphthalene | ≤0.5% |
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 1,8-Diaminonaphthalene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1,8-Diaminonaphthalene
Packaging of 1,8-Diaminonaphthalene
Industrial 1,8-Diaminonaphthalene 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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