China Factory Direct
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| CAS number | 24241-18-7 |
| Product name | 2-Amino-3,5-dibromopyrazine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as a pharmaceutical intermediate in the synthesis of antitumor and antiviral active compounds | Applied in organic synthesis and catalytic reactions |
| Pesticides | Used in the preparation of agricultural chemicals, including fungicides and herbicides | Applied in halogenation and condensation reactions |
| Materials Science | Used as a precursor for functional materials in the synthesis of optoelectronic materials or polymer modifiers | Applied in polymerization and molecular design |
| Research Reagents | Used in laboratory research, such as structure–activity relationship studies of pyrazine derivatives | Applied in analytical testing and chemical modification |
| Dyes | Used as a dye intermediate in the synthesis of azo or heterocyclic dyes with specific hues | Applied in diazotization and coupling reactions |
| Detection Item | Common Analytical Method | Method Overview |
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| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, calibrated against certified reference standard. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using HPLC coupled with diode-array detection; peak purity assessed by spectral comparison. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify common organic solvents (e.g., methanol, acetone, DMF) based on retention time and calibration curves. |
| Water Content | Karl Fischer Titration | Volumetric titration with iodine-based reagent; water reacts stoichiometrically with iodine, sulfur dioxide, and base in methanol medium. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification after acid digestion; detection based on characteristic atomic emission spectra of metal ions in plasma. |
| Chloride Impurity | Ion Chromatography | Separation of anions on ion-exchange column with suppressed conductivity detection; chloride quantified via retention time and peak area calibration. |
| Sulfated Ash | Gravimetric Analysis | Sample incinerated at 700-800 C, residue treated with sulfuric acid and re-ignited; ash mass measured after cooling in desiccator. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed visually or automatically as solid-to-liquid phase change under controlled heating rate. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles against defined standards under controlled lighting conditions. |
| Bulk Density | USP <616> Method I | Mass of powder measured in a calibrated cylinder after controlled tapping; calculated as mass per unit volume (g/mL). |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity pattern from dispersed particles to determine size distribution by Mie theory. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through solution; indicative of chiral purity and identity confirmation. |
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 148–152°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.