2,3-diaminonaphthalene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 771-97-1 |
| Product name | 2,3-diaminonaphthalene |
| 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) |
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Documents We Provide for 2,3-diaminonaphthalene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,3-diaminonaphthalene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,3-diaminonaphthalene
| Industry | Application | Process |
|---|---|---|
| Analytical Chemistry | Fluorescent probe for trace selenium detection | Reacts with selenium to form highly fluorescent 4,5-benzopiazselenol, quantified by fluorometric spectrophotometry |
| Pharmaceutical R&D | Intermediate for synthesizing antitumor or biologically active molecules | Serves as an aromatic diamine building block in heterocycle construction, e.g., quinoxaline derivatives |
| Materials Science | Monomer for high-performance polymers (e.g., polyimides, polybenzimidazoles) | Undergoes condensation polymerization with dianhydrides or dicarboxylic acids to yield naphthalene-containing high-temperature-resistant polymers |
| Dye Industry | Precursor for specialty dyes and fluorescent brighteners | Introduced into chromophores via diazotization and coupling reactions for high-fastness dye synthesis |
Manufacturing Quality Control of 2,3-diaminonaphthalene
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column with methanol-water or acetonitrile-water as the mobile phase, and UV detection at approximately 254 nm. Quantification of DAN purity is achieved based on retention time and peak area. |
| Purity Analysis | Gas Chromatography-Mass Spectrometry (GC-MS) | After sample derivatization, the analyte is separated by gas chromatography and identified by mass spectrometry, suitable for analyzing volatile and semi-volatile impurities. |
| Structural Confirmation | Nuclear Magnetic Resonance Spectroscopy (NMR) | ¹H-NMR and ¹³C-NMR are used to confirm molecular structure; characteristic chemical shifts are employed to verify the structure of 2,3-diaminonaphthalene. |
| Impurity Testing | High-Performance Liquid Chromatography-Mass Spectrometry (HPLC-MS) | Combines the high separation efficiency of HPLC with the high sensitivity of MS, enabling effective identification and quantification of trace organic impurities, especially degradation products. |
| Moisture Content | Karl Fischer Titration | Measures water content via electrochemical titration, suitable for quality control of trace moisture in solid active pharmaceutical ingredients. |
| Residual Solvents | Gas Chromatography (GC) | Based on ICH guidelines, headspace injection-GC is used to detect potentially residual organic solvents (e.g., methanol, acetone) from manufacturing processes. |
| Melting Point Determination | Capillary Melting Point Method | Heats the sample in a capillary tube and observes the melting process to determine the melting point range, used for preliminary assessment of substance purity and consistency. |
| Appearance and Color | Visual Inspection | Observes sample color and physical state (e.g., powder, crystalline form) under specified lighting conditions to evaluate compliance with standard appearance requirements. |
Technical Specifications of 2,3-diaminonaphthalene
| Test Item | Specification |
|---|---|
| Appearance | Yellow-brown solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 172–176°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
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-diaminonaphthalene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,3-diaminonaphthalene
Packaging of 2,3-diaminonaphthalene
Industrial 2,3-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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