1,4-Diiodobenzene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 624-38-4 |
| Product name | 1,4-Diiodobenzene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial 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) |
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Documents We Provide for 1,4-Diiodobenzene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1,4-Diiodobenzene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1,4-Diiodobenzene
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of antihypertensive drugs | Used as an organic synthesis intermediate in arylation reactions |
| Agrochemicals | Synthesis of herbicides or insecticides | Applied in the synthesis of agrochemical molecules containing specific functional groups |
| High-performance polymers | Synthesis of polyaryletherketones and other high-performance polymers | Employed as a monomer or crosslinker in condensation or addition polymerization |
| Catalysis | Preparation of transition metal catalysts | Used as a ligand or precursor in the synthesis of metal complexes |
| Materials science | Preparation of liquid crystal materials | Involved in the structural construction of liquid crystal molecules |
| Organic synthesis | Synthesis of other aromatic compounds | Applied as an iodination reagent in nucleophilic substitution or coupling reactions |
Manufacturing Quality Control of 1,4-Diiodobenzene
| Detection Item | Common Testing Method | Method Overview |
|---|---|---|
| Purity (Main Component Content) | High-Performance Liquid Chromatography (HPLC) | Uses a C18 reversed-phase column with methanol-water or acetonitrile-water as the mobile phase, and UV detection at 254 nm. Quantification is performed using external standard or internal standard methods to assess main component content and total impurities. |
| Impurity Profile Analysis | Liquid Chromatography-Mass Spectrometry (LC-MS) | Combines HPLC separation with mass spectrometric detection to identify and quantify potential mono-iodinated products, oxidation by-products, halogen exchange impurities, etc., ensuring impurities meet pharmaceutical or high-purity standards. |
| Melting Point | Melting Point Apparatus (Capillary Method) | Determined according to pharmacopoeial methods; literature melting range is approximately 155–158 °C. A narrow melting range indicates high crystalline purity; a broad range suggests the presence of impurities. |
| Iodine Content (Elemental Analysis) | Combustion-Ion Chromatography / ICP-MS | After high-temperature combustion or acid digestion, iodide ions are quantified via ion chromatography, or total iodine content is directly measured using inductively coupled plasma mass spectrometry (ICP-MS), verifying that the number of iodine atoms matches the theoretical value (C₆H₄I₂). |
| Water Content | Karl Fischer Titration | Measures trace moisture using coulometric or volumetric Karl Fischer titration. Ensures water content is below 0.5% (required for high-purity reagents or pharmaceutical intermediates). |
| Appearance and Color | Visual Inspection + Colorimetry | Sample appears as white to pale yellow crystalline powder with no visible mechanical impurities. If necessary, a colorimeter is used to measure yellowness index (YI) to monitor discoloration caused by oxidation or photodegradation. |
| Solvent Residuals | Gas Chromatography (GC) | Uses headspace injection or direct injection to detect residual organic solvents (e.g., methanol, ethanol, dichloromethane). Compliance with ICH Q3C guidelines is assessed based on acceptable limits. |
| Particle Size Distribution (Powder Form) | Laser Particle Size Analyzer | Measures particle size distribution of powdered samples to ensure consistent physical properties across batches, important for quality control of intermediate materials used in formulations. |
| UV-Visible Absorption Spectrum | Ultraviolet-Visible Spectrophotometry (UV-Vis) | Prepared in ethanol or acetonitrile, the solution is scanned across 200–400 nm. Characteristic absorption peaks (around 250–280 nm) are used to confirm molecular structure and assist in purity assessment. |
Technical Specifications of 1,4-Diiodobenzene
| Test Item | Specification |
|---|---|
| Appearance | Brown crystalline solid |
| Purity | >=98.0% (GC) |
| Melting Point | 186–189°C |
| Total Impurities | <=2.0% (GC) |
| Single Impurity | <=0.5% (GC) |
| 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 1,4-Diiodobenzene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1,4-Diiodobenzene
Packaging of 1,4-Diiodobenzene
Industrial 1,4-Diiodobenzene 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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