4-BROMO-1-BUTYNE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 38771-21-0 |
| Product name | 4-BROMO-1-BUTYNE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeReagent Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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-BROMO-1-BUTYNE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-BROMO-1-BUTYNE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-BROMO-1-BUTYNE
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Synthesis | Organic synthesis intermediate for constructing brominated alkynyl drug molecules | Alkynyl group introduced via coupling reactions (e.g., Sonogashira coupling) to synthesize active pharmaceutical ingredients |
| Pesticide Development | Intermediate for synthesizing brominated alkynyl pesticide lead compounds | Metal-catalyzed coupling with heterocyclic amines or aryl halides to construct novel insecticidal or fungicidal scaffolds |
| Materials Science | Used in synthesizing functional organic materials, such as conductive polymers or fluorescent probe precursors | Rigid structural units incorporated via alkyne-based click chemistry or polymerization reactions |
| Chemical Research | Standard reagent for studying organic reaction mechanisms and screening catalysts | Evaluates activation efficiency and selectivity of palladium-, copper-, and other catalysts toward terminal alkynes |
Manufacturing Quality Control of 4-BROMO-1-BUTYNE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies 4-bromobutyne peak area relative to calibration standards using flame ionization detection. |
| Residual Solvents | Gas Chromatography (GC) with Headspace sampling | Detects and quantifies volatile organic solvents by analyzing vapor phase above sample at controlled temperature. |
| Water Content | Karl Fischer Titration | Measures water via stoichiometric reaction between water, iodine, sulfur dioxide, and base in methanol medium. |
| Acidity (as HBr) | Acid-Base Titration with NaOH | Determines acidic impurities by titration with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Color | Visual Comparison against APHA Scale | Evaluates color intensity by comparing sample appearance in a Nessler tube to standardized platinum-cobalt solutions. |
| Density at 20 C | Digital Density Meter | Measures mass per unit volume using oscillating U-tube principle with temperature-controlled sample cell. |
| Refractive Index at 20 C | Digital Refractometer | Determines refractive index based on critical angle of total internal reflection of light through liquid sample. |
| Boiling Point | Micro Distillation Apparatus | Identifies temperature range at which vapor pressure equals atmospheric pressure during controlled small-scale distillation. |
| Heavy Metals (as Pb) | ICP-OES | Quantifies trace metal contaminants after acid digestion by measuring element-specific atomic emission intensities. |
| Chloride Impurity | Ion Chromatography (IC) | Separates and quantifies chloride anions using ion-exchange column and conductivity detection. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic residue remaining after high-temperature ashing of sample in platinum crucible. |
| Alkali Metals (Na, K) | ICP-OES | Simultaneously quantifies sodium and potassium via characteristic atomic emission wavelengths after acid digestion. |
Technical Specifications of 4-BROMO-1-BUTYNE
| Test Item | Specification |
|---|---|
| Appearance | Yellow liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.495–1.505 |
| Relative Density (20°C/25°C) | 1.32–1.36 g/cm³ |
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-BROMO-1-BUTYNE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-BROMO-1-BUTYNE
Packaging of 4-BROMO-1-BUTYNE
Industrial 4-BROMO-1-BUTYNE 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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