4-Bromo-3-methylbenzoic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 7697-28-1 |
| Product name | 4-Bromo-3-methylbenzoic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty 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-Bromo-3-methylbenzoic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Bromo-3-methylbenzoic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Bromo-3-methylbenzoic acid
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Key intermediate for synthesizing anti-inflammatory agents, anticancer drugs, and selective COX-2 inhibitors | Used in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Heck) to construct biphenyl or heterocyclic scaffolds; also employed in functional group transformations such as amidation and esterification |
| Pesticide Development | Structural modification unit for novel herbicides and insecticides | Bromine atom introduction provides sites for subsequent substitution, enabling construction of active molecules containing trifluoromethyl groups or heterocycles; commonly applied in nucleophilic substitution or metal-catalyzed cross-coupling involving brominated aromatic carboxylic acids |
| Materials Science | Synthetic precursor for hole-transport materials in organic light-emitting diodes (OLEDs) and polymer stabilizers | Participates in Stille or Ullmann coupling via the bromine atom to incorporate conjugated units such as carbazole or triphenylamine, thereby tuning HOMO/LUMO energy levels |
Manufacturing Quality Control of 4-Bromo-3-methylbenzoic acid
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color and appearance (e.g., white to pale white crystalline powder) to determine if it meets the standard description. |
| Purity (Content) | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase C18 column with a UV detector (e.g., 254 nm), and quantitate the main component purity using external standard method or area normalization. |
| Related Substances (Impurities) | HPLC Method (Gradient Elution) | Separate the main peak and potential impurity peaks by optimizing the gradient of the mobile phase, and quantify each impurity content to ensure compliance with limit requirements. |
| Melting Point | Capillary Melting Point Determination | Determine the melting temperature range of the sample using a digital melting point apparatus to verify the crystalline purity and structural consistency of the compound. |
| Drying Loss | Drying Method (105°C, constant weight) | Dry the sample in a constant temperature oven until constant weight, calculate the percentage of mass loss to evaluate moisture and volatile content. |
| Residue on Ignition | High-Temperature Ashing (600–800°C) | Ignite the sample in a muffle furnace at high temperature, weigh the residual inorganic material, and assess inorganic impurities or catalyst residues. |
| Heavy Metals | Heavy Metal Test Method from Chinese Pharmacopoeia (Thioacetamide Method) | React with thioacetamide under weak acidic conditions to produce a color change, compare with standard lead solution to control total heavy metal content (e.g., ≤20 ppm). |
| Residual Solvents | Gas Chromatography (GC-FID/Headspace Injection) | Use a capillary column and headspace injection technique to quantitatively detect residual organic solvents (e.g., methanol, ethyl acetate) from synthesis processes. |
| pH Value (Solution) | pH Meter Measurement | Prepare a solution of a certain concentration (e.g., 1%) and measure the pH with a calibrated pH meter to assess acidity strength and stability. |
| Structure Confirmation | Nuclear Magnetic Resonance (NMR), Infrared Spectroscopy (IR), Mass Spectrometry (MS) | Comprehensively use 1H-NMR, 13C-NMR, FT-IR, and MS to confirm the molecular structure and ensure it is the target compound. |
| Specific Rotation (if applicable) | Optical Rotatory Dispersion Measurement | If the compound is chiral, specific rotation should be measured; this item may not be required for compounds without chiral centers. |
| Moisture | Karl Fischer Titration | Measure trace moisture using potentiometric or volumetric titration, suitable for quality control of moisture-sensitive products. |
Technical Specifications of 4-Bromo-3-methylbenzoic acid
| Test Item | Specification |
|---|---|
| Appearance | White to light yellow crystalline powder |
| Purity | >=98.0% (by LC-MS) |
| Melting Point | 172–176°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
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-3-methylbenzoic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Bromo-3-methylbenzoic acid
Packaging of 4-Bromo-3-methylbenzoic acid
Industrial 4-Bromo-3-methylbenzoic acid 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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