4,4'-Diiodo-2,2'-dimethylbiphenyl Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 69571-02-4 |
| Product name | 4,4'-Diiodo-2,2'-dimethylbiphenyl |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeReagent 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'-Diiodo-2,2'-dimethylbiphenyl
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4'-Diiodo-2,2'-dimethylbiphenyl Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,4'-Diiodo-2,2'-dimethylbiphenyl
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Organic synthesis intermediate | Used to incorporate biphenyl motifs into target drug molecules |
| Materials Science | Precursor for optoelectronic materials | Applied in the preparation of liquid crystal or organic optoelectronic materials |
| Chemical Reagents | Complex synthesis | Serves as an iodinating reagent in metal complex synthesis |
| Catalysis | Catalyst precursor | Used to prepare catalytic materials featuring biphenyl structures |
| Research & Development | Laboratory research | Applied to explore synthesis routes and properties of novel biphenyl derivatives |
Manufacturing Quality Control of 4,4'-Diiodo-2,2'-dimethylbiphenyl
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by comparison of peak area against a certified reference standard using reversed-phase chromatography and UV detection at ~254 nm. |
| Related Substances (Impurities) | HPLC-UV or GC-MS | Separation and identification/quantification of structurally related impurities (e.g., mono-iodo, tri-iodo, or des-iodo analogs) using retention time matching and spectral libraries. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection to quantify volatile organic solvents (e.g., toluene, DMF, methanol) based on calibrated response factors. |
| Heavy Metals (Total) | ICP-MS | Multi-element quantification of toxic metals (Pb, Cd, Hg, As, etc.) after acid digestion, exploiting high sensitivity and isotopic resolution. |
| Moisture Content | Karl Fischer Titration (Coulometric) | Electrochemical titration measuring water content via iodine generation and stoichiometric reaction with water in anhydrous medium. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition detection by observing solid-to-liquid phase change under controlled heating rate per pharmacopeial standards (e.g., USP <741>). |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Determination of inorganic ash content by high-temperature incineration followed by precise weighing of residual inorganic material. |
| Iodine Content | Oxygen Flask Combustion + Iodometric Titration | Complete halogen liberation via combustion in oxygen flask, followed by redox titration of iodide with standardized thiosulfate solution. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity as a function of angle to determine volumetric particle size distribution in dispersed powder samples. |
| Bulk & Tapped Density | ASTM D6393 | Measurement of mass per unit volume for powder in untapped and tapped states using standardized cylinder and tapping apparatus. |
| Organic Volatile Impurities (e.g., Iodobenzene, Biphenyl) | GC-MS | Targeted and non-targeted screening of low-boiling aromatic impurities using mass spectral identification and external calibration. |
| Chloride Ion (as Cl⁻) | Ion Chromatography (IC) with Conductivity Detection | Separation of anions on an ion-exchange column and quantitative detection via suppressed conductivity measurement. |
| Sulfated Ash | Gravimetric Analysis | Determination of inorganic residue after ignition with sulfuric acid treatment to convert metals to sulfates, followed by weighing. |
| Appearance (Color & Physical Form) | Visual Inspection | Assessment of crystalline morphology, color (e.g., white to off-white), and absence of foreign particles under controlled lighting per USP <905>. |
Technical Specifications of 4,4'-Diiodo-2,2'-dimethylbiphenyl
| Test Item | Specification |
|---|---|
| Appearance | Orange solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 182–186 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| 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 4,4'-Diiodo-2,2'-dimethylbiphenyl
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4'-Diiodo-2,2'-dimethylbiphenyl
Safety Information of 4,4'-Diiodo-2,2'-dimethylbiphenyl
| Pictograms |   |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of 4,4'-Diiodo-2,2'-dimethylbiphenyl
Industrial 4,4'-Diiodo-2,2'-dimethylbiphenyl 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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