China Factory Direct
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| CAS number | 38002-45-8 |
| Product name | 3-BROMO-1-(TRIMETHYLSILYL)-1-PROPYNE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeReagent GradeIndustrial 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of biologically active compounds | Used as an intermediate in constructing complex molecular frameworks, typically involving coupling or cyclization reactions |
| Materials Science | Key reagent in organic synthesis | Used to introduce trimethylsilyl or alkynyl groups into target molecules; enables transfer of specific functional groups via silicon–carbon bond cleavage |
| Fine Chemicals | Production of specialty chemicals | Applied as part of protecting group strategies, allowing facile removal to expose reactive sites when required |
| Pesticides | Development of novel agrochemicals | Employed in critical synthetic steps to construct the core scaffold of the final product |
| Academic Research | Development of new synthetic methodologies | Investigated for applications in emerging reaction types, including transition metal-catalyzed transformations |
| 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. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Volatile impurities are vaporized in sealed vials and quantified by GC-FID using calibrated standard solutions. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration where iodine generated in situ reacts stoichiometrically with water; endpoint detected amperometrically. |
| Acidity (as HBr) | Acid-Base Titration with Potentiometric Endpoint | Titration with standardized sodium hydroxide solution; endpoint determined by pH inflection using a glass electrode. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Multi-element quantification after acid digestion and dilution, based on element-specific mass-to-charge ratios and isotopic detection. |
| Chloride Impurity | Ion Chromatography (IC) with Conductivity Detection | Separation of anions on an ion-exchange column followed by quantitative detection via changes in eluent conductivity. |
| Residual Siloxanes | Gas Chromatography-Mass Spectrometry (GC-MS) | Identification and quantification of volatile siloxane impurities using retention time and characteristic mass fragments. |
| Color | Visual Comparison Against APHA Scale | Sample color assessed in a 100-mm cell against platinum-cobalt standard solutions under controlled lighting. |
| Density at 20 C | Oscillating U-tube Densitometry | Measurement of sample density based on resonant frequency shift of a vibrating U-shaped glass tube filled with the sample. |
| Refractive Index at 20 C | Digital Refractometry | Determination of refractive index via critical angle measurement of light passing through a prism-sample interface. |
| Non-Volatile Residue | Gravimetric Analysis | Evaporation of a known sample mass to dryness at 105 C followed by weighing of residual solids. |
| Stereochemical Purity (R/S Enantiomeric Excess) | Chiral Gas Chromatography (cGC) | Enantioselective separation on a chiral stationary phase with quantification of enantiomer peaks using FID. |
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.475–1.485 |
| Relative Density (20°C/25°C) | 1.22–1.24 g/cm³ |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() |
| Signal Word | Warning |
| Safety Data Sheet | |
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.