4-Bromostyrene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2039-82-9 |
| Product name | 4-Bromostyrene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeElectronic 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 4-Bromostyrene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Bromostyrene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Bromostyrene
| Industry | Application | Process |
|---|---|---|
| Chemical Synthesis | Organic synthesis intermediate | Applied in aryl coupling reactions for the preparation of functionalized polystyrene, liquid crystal materials, and pharmaceutical molecules |
| Materials Science | Monomer for polymer materials | Used in free-radical or controlled polymerization to produce functional polymers bearing brominated side chains |
| Pharmaceutical Industry | Intermediate for drug development | Participates in Suzuki, Heck, and other coupling reactions to construct complex aromatic pharmaceutical molecules |
| Agrochemicals | Synthesis of agrochemicals | Employed as a bromoarene in synthetic routes to active ingredients such as insecticides and herbicides |
| Electronic Materials | Precursor for organic semiconductor materials | Applied in the synthesis of conjugated polymers or small-molecule semiconductors with tailored optoelectronic properties |
Manufacturing Quality Control of 4-Bromostyrene
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantitative determination based on peak area comparison against a certified reference standard using a non-polar capillary column. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration where iodine generated in situ reacts stoichiometrically with water; endpoint detected amperometrically. |
| Residue on Ignition | Gravimetric Analysis | Sample is incinerated at 700-800 C to oxidize organic matter; inorganic residue is weighed after cooling in a desiccator. |
| Chlorinated Impurities (e.g., o-bromochlorobenzene) | Gas Chromatography-Mass Spectrometry (GC-MS) | Separation by GC followed by mass spectral identification and semi-quantitation of chlorinated aromatic impurities. |
| Acid Value | Acid-Base Titration (NaOH, phenolphthalein indicator) | Neutralization of acidic impurities (e.g., HBr, bromobenzoic acid) with standardized sodium hydroxide solution. |
| Color (APHA) | Visual Comparison or Spectrophotometric Measurement (APHA scale) | Comparison of sample color intensity in a 100-mm cell against platinum-cobalt standard solutions at 455 nm. |
| Refractive Index | Refractometry (at 20 C) | Measurement of light bending angle at air-sample interface using a calibrated Abbe refractometer. |
| Specific Gravity | Digital Density Meter or Pycnometer Method | Determination of density relative to water at 20/20 C using oscillating U-tube or calibrated volumetric flask. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) after wet digestion | Sample digested with nitric acid/hydrogen peroxide; lead quantified by flame AAS at 283.3 nm. |
| Non-Volatile Residue | Evaporation and Gravimetry | Sample evaporated to dryness at 105 C under vacuum; residue weighed after cooling. |
| Peroxide Value | Iodometric Titration | Oxidation of potassium iodide by peroxides to liberate iodine, titrated with standardized sodium thiosulfate. |
| Residual Solvents (e.g., toluene, methanol) | Headspace Gas Chromatography (HS-GC) with FID | Volatiles extracted from liquid sample in sealed vial, injected into GC for separation and quantitation. |
Technical Specifications of 4-Bromostyrene
| Test Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Refractive Index (n20/D) | 1.576–1.580 |
| Relative Density (20°C/25°C) | 1.230–1.240 g/cm³ |
| Identification (NMR) | Conforms to reference standard |
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-Bromostyrene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Bromostyrene
Packaging of 4-Bromostyrene
Industrial 4-Bromostyrene 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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