Benzo[1,2-b:4,5-b']dithiophene-4,8-dione Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 32281-36-0 |
| Product name | Benzo[1,2-b:4,5-b']dithiophene-4,8-dione |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 Benzo[1,2-b:4,5-b']dithiophene-4,8-dione
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Benzo[1,2-b:4,5-b']dithiophene-4,8-dione Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Benzo[1,2-b:4,5-b']dithiophene-4,8-dione
| Industry | Application | Process |
|---|---|---|
| Optoelectronic Materials | Intermediate for organic optoelectronic materials | Used to synthesize benzodithiophene (BDT) and its derivatives as core donor units in polymer semiconductor materials (e.g., PTB7 series). |
| Pharmaceutical Chemicals | Intermediate for drug synthesis | Serves as a building block for thieno-fused ring scaffolds in the synthesis of biologically active pharmaceutical molecules or drug candidates. |
| Advanced Materials | Monomer for conjugated polymer synthesis | Employed in polymerization reactions—including Stille and Suzuki couplings—to prepare conjugated polymers for organic photovoltaics (OPV) and organic field-effect transistors (OFET). |
| Organic Synthesis | Building block for fused-ring compounds | Utilized in nucleophilic addition and cyclization reactions via its diketone functionality to construct complex sulfur-containing fused heterocycles. |
Manufacturing Quality Control of Benzo[1,2-b:4,5-b']dithiophene-4,8-dione
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at characteristic wavelength, calibrated against certified reference standard. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using HPLC coupled with diode-array detection; relative retention times and spectral matching used for qualification. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection to quantify volatile organic solvents based on calibrated response factors. |
| Heavy Metals | ICP-MS | Multi-element quantification of toxic metals (e.g., Pb, Cd, Hg, As) after acid digestion, using isotopic mass spectrometry for ultra-trace sensitivity. |
| Water Content | Karl Fischer Titration | Electrochemical titration with iodine-based reagent to determine trace water content via stoichiometric reaction. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement by observing solid-to-liquid phase change in capillary tube under controlled heating rate. |
| Appearance | Visual Inspection | Assessment of physical state, color, and homogeneity against established reference standard under controlled lighting conditions. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity patterns to calculate size distribution of dry or dispersed particles. |
| Chloride Content | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column and conductivity detection after sample dissolution and filtration. |
| Sulfur Content | Combustion IC | High-temperature combustion followed by ion chromatographic quantification of sulfate ions generated from organic sulfur oxidation. |
| Residue on Ignition | Gravimetric Analysis | Mass loss upon high-temperature ashing measured as non-volatile inorganic residue after ignition at 700-800 C. |
| Bulk Density | Tap Density Tester | Measurement of mass per unit volume after standardized mechanical tapping of a powder sample in a graduated cylinder. |
Technical Specifications of Benzo[1,2-b:4,5-b']dithiophene-4,8-dione
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 245–249 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Residue on Ignition | <=0.3% |
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 Benzo[1,2-b:4,5-b']dithiophene-4,8-dione
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Benzo[1,2-b:4,5-b']dithiophene-4,8-dione
Packaging of Benzo[1,2-b:4,5-b']dithiophene-4,8-dione
Industrial Benzo[1,2-b:4,5-b']dithiophene-4,8-dione 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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