4,4'-dibroMo-2,2'-dinitrobiphenyl Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 91371-12-9 |
| Product name | 4,4'-dibroMo-2,2'-dinitrobiphenyl |
| 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 4,4'-dibroMo-2,2'-dinitrobiphenyl
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4'-dibroMo-2,2'-dinitrobiphenyl Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,4'-dibroMo-2,2'-dinitrobiphenyl
| Industry | Application | Process |
|---|---|---|
| Chemical Synthesis | Used as an organic synthesis intermediate to construct complex molecular frameworks containing bromo and nitro functional groups | Participates in multi-step synthesis pathways via nucleophilic substitution, reduction, or coupling reactions |
| Materials Science | Used to prepare precursors for high-thermal-stability or flame-retardant polymeric materials | Acts as a functional monomer in condensation or free-radical polymerization reactions |
| Pharmaceutical R&D | Used as a reagent for structural modification of drug molecule scaffolds to explore novel antibacterial or antitumor active compounds | Applied in structural diversification and derivatization during lead compound library construction |
| Dyes & Pigments | Used as a precursor to bromo-nitro chromophores for synthesizing dyes with specific spectral properties | Incorporated into dye core structures via reduction, diazotization, or coupling reactions |
Manufacturing Quality Control of 4,4'-dibroMo-2,2'-dinitrobiphenyl
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-phase HPLC with UV detection at 254 nm, based on peak area comparison against certified reference standard. |
| Related Substances | HPLC-UV | Detects and quantifies impurities (e.g., mono-bromo, mono-nitro, des-bromo analogs) via gradient HPLC-UV with relative response factor correction. |
| Residual Solvents | GC-FID | Measures volatile organic solvents (e.g., toluene, DMF, methanol) by headspace GC with flame ionization detection using internal standard calibration. |
| Water Content | Karl Fischer Titration | Determines trace water by coulometric or volumetric titration where iodine reacts stoichiometrically with water in pyridine/methanol medium. |
| Inorganic Halides (Cl-, Br-) | Ion Chromatography | Separates and quantifies halide anions using suppressed conductivity detection after anion-exchange column separation. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Quantifies trace heavy metals after acid digestion by measuring elemental isotopic signals with high mass resolution and low detection limits. |
| Sulfated Ash | Gravimetric Analysis | Measures non-volatile inorganic residue after combustion at 700-800 C in presence of sulfuric acid, followed by precise weighing. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using calibrated capillary tube under controlled heating rate. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of dry powder by analyzing angular variation in laser light scattering intensity. |
| Bulk Density | ASTM D1895 | Determines mass per unit volume of freely settled powder using standardized graduated cylinder and tapping procedure. |
| Color (APHA) | Visual Comparison or Spectrophotometer | Evaluates yellowness/browning against platinum-cobalt standards using visual match or absorbance at 430 nm. |
| Chlorinated Impurities (e.g., PCBs, chlorobenzenes) | GC-ECD | Detects trace chlorinated organics via gas chromatography with electron capture detection due to high sensitivity for Cl-containing compounds. |
Technical Specifications of 4,4'-dibroMo-2,2'-dinitrobiphenyl
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.5% |
| Melting Point | 172–176 °C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Identification (NMR) | Conforms to reference spectrum |
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 4,4'-dibroMo-2,2'-dinitrobiphenyl
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4'-dibroMo-2,2'-dinitrobiphenyl
Safety Information of 4,4'-dibroMo-2,2'-dinitrobiphenyl
| Pictograms |   |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of 4,4'-dibroMo-2,2'-dinitrobiphenyl
Industrial 4,4'-dibroMo-2,2'-dinitrobiphenyl 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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