(E)-1,4-Dibromobut-2-ene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 821-06-7 |
| Product name | (E)-1,4-Dibromobut-2-ene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty 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 (E)-1,4-Dibromobut-2-ene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk (E)-1,4-Dibromobut-2-ene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of (E)-1,4-Dibromobut-2-ene
| Industry | Application | Process |
|---|---|---|
| Organic Synthesis | Intermediate for producing brominated flame retardants, pharmaceuticals, and agrochemical active ingredients | Used in nucleophilic substitution and coupling reactions (e.g., Heck, Suzuki) |
| Pharmaceutical Chemistry | Structural building block for synthesizing antitumor agents (e.g., nitrogen mustard derivatives) and antimicrobial agents | Applied in alkylation and cyclization reactions |
| Materials Science | Used to prepare brominated liquid crystal monomers and functional polymeric materials | Employed in free-radical polymerization and condensation polymerization |
| Agrochemical R&D | Key intermediate for synthesizing novel insecticides and plant growth regulators | Utilized in addition reactions and oxidation/reduction modifications |
Manufacturing Quality Control of (E)-1,4-Dibromobut-2-ene
| Detection Item | Common Testing Methods | Method Overview |
|---|---|---|
| Purity | Gas Chromatography (GC) | Uses capillary columns for component separation and FID detector for quantitative analysis of the main ingredient; suitable for volatile organic bromides. |
| Impurity Content | Gas Chromatography-Mass Spectrometry (GC-MS) | Combines GC separation with MS qualitative capability to identify and quantify trace impurities (e.g., unreacted raw materials, by-products, isomers). |
| Moisture Content | Karl Fischer Titration | Utilizes the quantitative reaction between iodine and sulfur dioxide in a pyridine/methanol system with water, enabling precise measurement of trace moisture in samples. |
| Density | Density Meter Method or Specific Gravity Bottle Method | Measures sample density at standard temperature (e.g., 20°C) to assess physical consistency and batch-to-batch stability. |
| Refractive Index | Abbe Refractometer Method | Determines refractive index at a specific wavelength (typically 589 nm) and temperature, assisting in evaluating purity and structural consistency. |
| Bromine Content | Oxygen Flask Combustion-Silver Titration or ICP-OES | After oxygen flask combustion converts bromine into bromide ions, titrated with silver nitrate; alternatively, total bromine content is directly measured using ICP-OES. |
| Appearance and Color | Visual Color Comparison Method | Observation under standard lighting conditions to assess liquid color and clarity by comparing against standard color scales, providing preliminary insight into oxidation or decomposition. |
| Acidity/Alkalinity | Acid-Base Titration Method | Titrates the sample extract with standardized acid or base solution, using phenolphthalein or methyl orange as indicators, to control residual acidic/basic catalysts. |
Technical Specifications of (E)-1,4-Dibromobut-2-ene
| Test Item | Specification |
|---|---|
| Appearance | Yellow-brown solid |
| Purity | >=98.0% (GC-MS) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Melting Point | 45–49°C |
| Refractive Index (n20/D) | 1.520–1.530 |
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 (E)-1,4-Dibromobut-2-ene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of (E)-1,4-Dibromobut-2-ene
Packaging of (E)-1,4-Dibromobut-2-ene
Industrial (E)-1,4-Dibromobut-2-ene 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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