China Factory Direct
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| CAS number | 4897-84-1 |
| Product name | Methyl 4-bromobutyrate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty 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 |
|---|---|---|
| Pharmaceutical Intermediates | Synthesis of antitumor agents (e.g., irinotecan derivatives) and neuroactive compounds | Undergoes nucleophilic substitution with amines to construct nitrogen-containing heterocyclic structures |
| Agrochemical Intermediates | Preparation of plant growth regulators and insecticides (e.g., analogues of fenpyroximate) | Undergoes Grignard or lithiation reactions followed by addition to aldehydes/ketones, then hydrolysis and oxidation to yield target molecules |
| Organic Synthesis | Alkylating agent for introducing the 4-bromobutyryl group to synthesize γ-bromo carbonyl compounds | Undergoes transesterification or aminolysis with sodium alkoxides, sodium phenoxides, or amines under anhydrous conditions |
| Materials Science | Synthesis of biodegradable polyesters and functionalized polymer monomers | Participates in ring-opening polymerization or condensation polymerization with diols to form copolymers bearing brominated side chains |
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Purity | Gas Chromatography (GC) | Separation using capillary columns and quantification of the main component content with an FID detector to assess sample purity. Suitable for volatile organic compounds, offering high sensitivity and good reproducibility. |
| Impurity Content | Gas Chromatography-Mass Spectrometry (GC-MS) | Combines the separation capability of GC with the identification power of MS to identify and quantify trace impurities (such as unreacted raw materials and by-products), improving the accuracy of impurity identification. |
| Moisture Content | Karl Fischer Titration | Measures trace moisture in the sample through the quantitative reaction between iodine and water using potentiometric or volumetric titration, meeting pharmacopoeia or chemical quality control standards. |
| Appearance and Color | Visual Colorimetric Method | Observes the color and clarity of liquid samples under standard lighting conditions and compares them with standard color solutions to determine if they meet appearance quality requirements. |
| Density | Density Meter Method / Pycnometer Method | Measures the density of the sample at a specified temperature (e.g., 20°C) using a digital density meter or pycnometer, serving as a physical constant for identification and quality consistency control. |
| Refractive Index | Abbe Refractometer Method | Determines the refractive index at a specific wavelength (typically the sodium D line, 589.3 nm) and temperature, aiding in the identification of substances and batch consistency. |
| Acid Value / Free Acid | Acid-Base Titration | Titrate free acidic impurities (e.g., unesterified 4-bromo butyric acid) in the sample with a standard base solution, using phenolphthalein or potentiometric endpoint detection to evaluate the degree of esterification. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | After sealing and heating the sample, the headspace gas is sampled and analyzed by GC-FID or GC-MS to detect residual organic solvents (e.g., methanol, dichloromethane), complying with ICH Q3C requirements. |
| Structural Confirmation | Proton Nuclear Magnetic Resonance (¹H NMR) | Confirms molecular structure through characteristic chemical shifts and integral areas, verifying the identity of the target compound and excluding interference from structurally similar compounds. |
| Heavy Metal Residue | Atomic Absorption Spectrometry (AAS) or ICP-MS | Determines the content of limited elements such as lead, arsenic, mercury, and cadmium after digestion, ensuring compliance with safety regulations (e.g., USP<232>/<233> or EP standards). |
| Test Item | Specification |
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| Appearance | Colorless liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.472–1.476 |
| Relative Density (20°C/25°C) | 1.325–1.335 g/cm³ |
| Odor | Characteristic ester-like odor |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.