2,3-Diaminopyridine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 452-58-4 |
| Product name | 2,3-Diaminopyridine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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-Diaminopyridine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,3-Diaminopyridine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,3-Diaminopyridine
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Chemicals | Key intermediate for the anti-tuberculosis drug pyrazinamide | Used to construct and modify the pyrazine ring; the amino group enables subsequent acylation or condensation reactions |
| Pharmaceutical Chemicals | Synthetic intermediate for anti-HIV and antiviral drugs | Serves as the core scaffold for diamino-pyridine derivatives, participating in heterocyclic condensation to build drug molecules |
| Organic Synthesis | Synthesis of specialty dyes and functional pigments | Acts as a diazo or coupling component; the reactivity of both amino groups enables azo dye synthesis |
| Analytical Chemistry | Chelating agent and detection reagent for metal ions | Forms stable complexes with transition metal ions via synergistic coordination between the pyridine ring nitrogen and amino groups |
| Agrochemicals | Intermediate for nitrogen-containing heterocyclic pesticides | Applied in synthesizing pyridine-structured insecticides or fungicides, participating in ring formation or side-chain modification reactions |
Manufacturing Quality Control of 2,3-Diaminopyridine
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance and Characteristics | Visual Inspection + Microscopic Observation | Observe the sample's color, crystal morphology, and presence of foreign matter or agglomeration to preliminarily assess whether the physical state meets specifications. |
| Purity (Content) | High-Performance Liquid Chromatography (HPLC) | Separation is performed using a reversed-phase chromatographic column with an appropriate mobile phase (e.g., methanol-buffer system), and the main component content is quantified using a UV detector. |
| Related Substances (Impurities) | HPLC (Gradient Elution) | Gradient elution is employed to separate the main peak from impurity peaks; the relative percentage content of each impurity is calculated to evaluate product purity and safety. |
| Loss on Drying | Drying Method (Constant Weight at 105°C) | A sample is weighed into a constant-weight weighing bottle and dried at 105°C until constant weight is achieved; the percentage of mass loss is calculated to assess moisture and volatile content. |
| Melting Point | Capillary Melting Point Determination | The initial and final melting temperatures of the sample are measured using a digital melting point apparatus or traditional capillary method to verify the crystalline purity of the compound. |
| Residual Solvents | Gas Chromatography (GC-FID or GC-MS) | Residual organic solvents (e.g., methanol, ethanol, DMF, etc.) are separated and quantified via headspace or direct injection using gas chromatography. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After acid digestion of the sample, limiting elements such as lead, cadmium, mercury, and arsenic are measured to ensure compliance with pharmacopoeial or ICH Q3D requirements. |
| pH Value (Aqueous Solution) | pH Meter Measurement | A solution of defined concentration is prepared, the pH meter is calibrated, and the pH is measured directly to evaluate the stability of its acid-base properties. |
| Ultraviolet Absorption Characteristics | Ultraviolet-Visible Spectrophotometry | Absorbance is measured at a specific wavelength (e.g., 254 nm or the maximum absorption wavelength) to assist in identification or quantitative analysis. |
| Structure Confirmation | Infrared Spectroscopy (IR), Nuclear Magnetic Resonance (NMR) | IR is used for functional group identification; ¹H/¹³C NMR provides information on hydrogen and carbon atomic environments to confirm molecular structure consistency. |
Technical Specifications of 2,3-Diaminopyridine
| Test Item | Specification |
|---|---|
| Appearance | Brown solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 124–128°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=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-Diaminopyridine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2,3-Diaminopyridine
Packaging of 2,3-Diaminopyridine
Industrial 2,3-Diaminopyridine 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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