China Factory Direct
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| CAS number | 18242-39-2 |
| Product name | 1-BROMO-3,5-DINITRO-BENZENE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial 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 |
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| Pharmaceutical Intermediates | Key intermediate in the synthesis of the antitubercular drug pasyniazid | Undergoes nucleophilic substitution with hydrazine hydrate to form 3,5-dinitrophenylhydrazine, followed by cyclization and acylation to yield pasyniazid |
| Organic Synthesis | Precursor for nitrogen-containing heterocycles and functionalized aromatic amine derivatives | Enables selective introduction of carbon chains or heteroatom groups via selective nitro reduction followed by diazotization-coupling, or palladium-catalyzed cross-coupling (e.g., Suzuki, Heck reactions) |
| Dyes & Pigments | Diazonium component in the synthesis of high-performance azo dyes and thermosensitive dyes | Diazotized under low-temperature acidic conditions; the resulting diazonium salt couples with phenols or aromatic amines to produce colored azo compounds |
| High-Performance Polymers | Building block for high-temperature-resistant polyimides and polybenzimidazoles | Condenses with diamines to form polyamic acid containing nitro side groups, which undergoes thermal imidization to yield oxidation-resistant specialty polymers with high glass transition temperatures |
| Detection Item | Common Analytical Method | Method Overview |
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| Assay (Purity) | HPLC-UV | Quantification using reverse-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using HPLC coupled with diode array detection; relative retention times and UV spectra support structural assignment. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify volatile organic solvents based on calibrated response factors. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration using iodine generated in situ to determine water content by stoichiometric reaction with pyridine/methanol reagent. |
| Heavy Metals | ICP-OES | Digestion followed by quantification of Pb, Cd, Hg, As, and other metals via inductively coupled plasma optical emission spectroscopy. |
| Bromide Content | Potentiometric Titration | Titration with silver nitrate using a silver indicator electrode; endpoint detected by potential jump due to AgBr precipitation. |
| Nitro Group Content | Reduction-Titration (Zn/HCl + NaOH back-titration) | Reduction of nitro groups to amines followed by diazotization and back-titration of excess nitrite with standardized thiosulfate. |
| Melting Point | Capillary Melting Point Apparatus | Determination of solid-to-liquid phase transition temperature using calibrated capillary apparatus per USP <741>. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles under controlled white light against standard reference samples. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Particle Size Distribution | Laser Diffraction | Measurement of size distribution in dispersed dry powder using Mie scattering theory and calibrated laser diffraction instrument. |
| Bulk Density | Graduated Cylinder Method | Determination of mass per unit volume after controlled tapping of sample in a standardized cylinder per ASTM D1895. |
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 112–116 °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.