China Factory Direct
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| CAS number | 3779-42-8 |
| Product name | (3-Bromopropyl)trimethylammonium bromide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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) |
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 |
|---|---|---|
| Chemical Research | Phase-transfer catalyst | Used to facilitate ionic reactions in biphasic reaction systems, enhancing reaction rate and selectivity |
| Organic Synthesis | Alkylating agent | Applied in the synthesis of quaternary ammonium salts as an alkyl donor for constructing nitrogen-containing heterocycles or functionalized molecules |
| Materials Science | Functionalization reagent | Applied for surface modification or polymer functionalization to introduce bromoalkyl quaternary ammonium groups and tailor material properties |
| Biochemistry | Auxiliary reagent for membrane protein studies | Used as a solubilizing or stabilizing additive for membrane proteins in specific experimental protocols (literature-supported) |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantitative determination based on peak area comparison against a certified reference standard using reversed-phase chromatography. |
| Water Content | Karl Fischer titration | Electrochemical titration measuring water via reaction of iodine with sulfur dioxide in the presence of water and base. |
| Residual Solvents | Gas Chromatography (GC) with FID | Separation and quantification of volatile organic impurities using capillary column and flame ionization detection. |
| Inorganic Bromide (Br-) | Ion Chromatography (IC) | Anion separation on an ion-exchange column followed by conductivity detection to quantify bromide ions. |
| Heavy Metals | ICP-OES | Multi-element detection after acid digestion by measuring atomic emission intensities at characteristic wavelengths. |
| pH (1% aqueous solution) | Potentiometric pH measurement | Determination of hydrogen ion activity using calibrated glass electrode in a standardized aqueous solution. |
| Melting Point | Capillary melting point apparatus | Thermal transition observed as solid-to-liquid phase change under controlled heating rate. |
| Appearance | Visual inspection | Assessment of physical state, color, and presence of foreign particles under controlled lighting conditions. |
| Loss on Drying (LOD) | Gravimetric analysis | Mass loss measured after drying under specified temperature and vacuum conditions. |
| Chloride Impurity | Argentometric titration (Mohr method) | Titration with silver nitrate using potassium chromate indicator; endpoint signaled by formation of red silver chromate precipitate. |
| Organic Impurities (related substances) | HPLC with UV detection | Separation and semi-quantitative detection of structurally related compounds using gradient elution and UV absorbance. |
| Bulk Density | Graduated cylinder method | Mass per unit volume determined by gently pouring sample into calibrated cylinder and measuring settled volume. |
| Test Item | Specification |
|---|---|
| Appearance | White to light yellow crystalline powder |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 178-182°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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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.