5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 174508-31-7 |
| Product name | 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine |
| 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 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
| Industry | Application | Process |
|---|---|---|
| Polymer Materials | Monomer for synthesizing conductive polymer poly(3,4-ethylenedioxythiophene) (PEDOT) | Electrochemical polymerization or chemical oxidative polymerization |
| Organic Synthesis | Synthesis of conductive polymer derivatives with specific substituents | Coupling reactions or substitution reactions |
| Electronics Industry | Preparation of antistatic coatings or organic electronic devices (e.g., OLEDs, solar cells) | Polymerization following solution coating or vacuum deposition |
| Chemical Intermediates | Production of functional conductive material intermediates | Fine chemical synthesis |
Manufacturing Quality Control of 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by peak area comparison against a certified reference standard using reverse-phase chromatography and UV detection at 254 nm. |
| Related Substances | HPLC-UV | Separation and detection of impurities using gradient reverse-phase HPLC with UV monitoring; identification and quantification relative to main peak. |
| Residual Solvents | GC-FID | Volatile organic solvents are separated by capillary GC and quantified by flame ionization detection using internal standard calibration. |
| Moisture Content | Karl Fischer Titration | Coulometric or volumetric titration with iodine reagent, where water reacts stoichiometrically to determine trace moisture content. |
| Heavy Metals | ICP-MS | Multi-element detection and quantification of toxic metals (e.g., Pb, Cd, Hg, As) after acid digestion and nebulization into plasma. |
| Chloride Impurity | Ion Chromatography | Separation of chloride anions on anion-exchange column with suppressed conductivity detection; quantified via external calibration. |
| Residual Palladium | ICP-OES | Quantification of Pd catalyst residue after microwave-assisted acid digestion using optical emission from excited plasma. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range over which solid transitions to liquid, observed visually under controlled heating rate. |
| Loss on Drying | Gravimetric Analysis | Mass loss measured after drying sample at specified temperature and time under vacuum or nitrogen purge. |
| Particle Size Distribution | Laser Diffraction | Measurement of scattered laser light intensity as function of angle to calculate volume-based particle size distribution. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through a solution of chiral compound at specified concentration and wavelength. |
| Residue on Ignition | Gravimetric Ashing | Mass of non-volatile inorganic residue determined after high-temperature ignition in a muffle furnace followed by cooling and weighing. |
Technical Specifications of 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
| Test Item | Specification |
|---|---|
| Appearance | Gray solid |
| Purity | >=98.0% (LC-MS) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 148–152°C |
| 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 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
Safety Information of 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
Industrial 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine 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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