4,4'-DIBROMO-2,2'-BIPYRIDINE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 18511-71-2 |
| Product name | 4,4'-DIBROMO-2,2'-BIPYRIDINE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeElectronic GradeMaterial GradeIndustrial GradeSpecialty 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'-BIPYRIDINE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4'-DIBROMO-2,2'-BIPYRIDINE 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'-BIPYRIDINE
| Industry | Application | Process |
|---|---|---|
| Chemical Synthesis | As a ligand for synthesizing metal–organic frameworks (MOFs) | Forms porous structures via coordination-driven self-assembly with transition metal ions (e.g., Zn²⁺, Cu²⁺) under solvothermal conditions |
| Chemical Synthesis | For constructing bipyridine-based transition metal complexes | Acts as a bidentate ligand in organic solvents to coordinate with metal salts (e.g., Pd(OAc)₂, NiCl₂), yielding catalytically active complexes |
| Organic Optoelectronic Materials | As an electron transport layer material in organic light-emitting diodes (OLEDs) | Deposited onto substrates via vacuum thermal evaporation or spin coating to form multilayer heterojunction structures with other organic semiconductors |
| Catalytic Chemistry | As a ligand precursor in palladium-catalyzed coupling reactions | After functional group transformation (e.g., borylation or stannylation), employed in ligand design for cross-coupling reactions such as Suzuki and Stille couplings |
| Medicinal Chemistry | For synthesizing bioactive heterocyclic compound intermediates | Introduces pharmacophores via nucleophilic substitution or metal-catalyzed cross-coupling to construct drug candidate molecules containing a bipyridine scaffold |
Manufacturing Quality Control of 4,4'-DIBROMO-2,2'-BIPYRIDINE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities (e.g., mono-brominated, debrominated, or oxidized analogs) using gradient HPLC-UV against qualified impurity standards. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify common solvents (e.g., DMF, methanol, dichloromethane) based on retention time and calibration curves. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine-based reagent to determine trace water content via stoichiometric reaction with iodine and sulfur dioxide. |
| Heavy Metals | ICP-MS | Multi-element quantification of toxic metals (e.g., Pb, Cd, Hg, As) after acid digestion, using isotopic detection for high sensitivity and selectivity. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column with suppressed conductivity detection. |
| Sulfated Ash | Gravimetric Analysis | Ignition of sample at 700-800 C followed by weighing of non-volatile inorganic residue after treatment with sulfuric acid. |
| Melting Point | Capillary Melting Point Apparatus | Determination of solid-to-liquid phase transition temperature range using calibrated capillary apparatus per USP <741>. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Measurement of mass loss upon heating under controlled nitrogen atmosphere to quantify volatile components and residual solvents. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry powder dispersion using laser scattering to determine D10, D50, and D90 values per ISO 13320. |
| Bulk Density | ASTM D1895 Method A | Determination of mass per unit volume of freely settled powder using a standardized graduated cylinder and balance. |
| Residual Palladium | ICP-OES | Quantification of palladium catalyst residue after microwave-assisted acid digestion, using plasma optical emission at characteristic wavelengths. |
Technical Specifications of 4,4'-DIBROMO-2,2'-BIPYRIDINE
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (by LC-MS) |
| Melting Point | 172–176 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Heavy Metals | <=20 ppm |
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'-BIPYRIDINE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4'-DIBROMO-2,2'-BIPYRIDINE
Packaging of 4,4'-DIBROMO-2,2'-BIPYRIDINE
Industrial 4,4'-DIBROMO-2,2'-BIPYRIDINE 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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