Industrial Purity 2-Bromo-1,4-Dicarboxylic Acid Specifications
- High Purity Standards: Specifications typically exceed 98.0% HPLC purity for pharmaceutical intermediates.
- Critical QC Parameters: Rigorous testing for residual solvents, heavy metals, and isomeric impurities.
- Bulk Supply Chain: Optimized manufacturing process ensures consistent availability for large-scale synthesis.
In the realm of advanced organic synthesis, particularly within the pharmaceutical and agrochemical sectors, the reliability of building blocks is paramount. 2-Bromoterephthalic acid (CAS 586-35-6) serves as a critical intermediate for the construction of complex biaryl systems and heterocycles. As demand scales from laboratory research to commercial production, the distinction between reagent-grade and industrial purity becomes a defining factor in process efficiency and final drug substance quality. NINGBO INNO PHARMCHEM CO.,LTD. stands as a premier global manufacturer dedicated to supplying this key intermediate with stringent quality controls tailored for GMP environments.
Technical Specifications and Physical Properties
Understanding the physicochemical properties of 2-bromo-1,4-dicarboxylic acid is essential for process chemists designing downstream reactions. The material is typically supplied as a white to off-white crystalline powder. Deviations in color or particle size can indicate issues in the crystallization phase of the manufacturing process. Below are the standard technical specifications expected for high-grade bulk supply.
| Parameter | Specification |
|---|---|
| CAS Registry Number | 586-35-6 |
| Molecular Formula | C8H5BrO4 |
| Molecular Weight | 245.03 g/mol |
| Purity (HPLC) | > 98.0% (Area Normalization) |
| Appearance | White to Off-White Crystalline Powder |
| Loss on Drying | < 0.5% |
| Residual Solvents | Compliant with ICH Q3C Guidelines |
Procurement teams must verify that the Certificate of Analysis (COA) accompanies every batch. This document validates that the material meets the agreed-upon specifications regarding impurity profiles, which is crucial for regulatory filings.
Synthesis Route and Manufacturing Considerations
The production of this brominated dicarboxylic acid generally involves the oxidation of corresponding dimethyl esters or toluidine derivatives. A robust synthesis route is critical to minimizing halogenated impurities and ensuring high yield. Common industrial methods utilize catalytic oxidation or stoichiometric oxidants under controlled conditions to prevent debromination or over-oxidation.
Key challenges in the manufacturing process include:
- Regioselectivity: Ensuring the bromine atom remains at the 2-position without migration.
- Crystallization Control: Managing particle size distribution to improve flowability during bulk handling.
- Impurity Purge: Effective removal of starting materials and side-products during workup.
At NINGBO INNO PHARMCHEM CO.,LTD., optimization of these parameters ensures that the final product supports efficient downstream coupling reactions, such as Suzuki-Miyaura or Ullmann-type couplings, without requiring extensive purification steps.
Quality Control and Analytical Methods
For industrial applications, relying on standard lab-grade testing is insufficient. Advanced analytical techniques are employed to guarantee industrial purity. High-Performance Liquid Chromatography (HPLC) is the primary method for assay determination, while Gas Chromatography (GC) may be used for volatile impurity profiling.
Critical quality attributes monitored include:
- Related Substances: Identification of mono-acid intermediates or dibromo byproducts.
- Heavy Metals: Strict limits (e.g., < 10 ppm) to meet pharmaceutical safety standards.
- Residual Palladium: Crucial if catalytic steps are involved in the synthesis.
When sourcing high-purity 2-Bromoterephthalic Acid, buyers should request method validation data to ensure the analytical procedures are stability-indicating. This transparency reduces risk during technology transfer and scale-up phases.
Commercial Viability and Bulk Procurement
The bulk price of chemical intermediates is influenced by raw material availability, energy costs, and purification complexity. Unlike gram-scale laboratory purchases where cost per gram is high, industrial contracts focus on cost per kilogram or ton with consistent quality assurance. Supply chain stability is another critical factor; disruptions can halt production lines for downstream API manufacturers.
Leading suppliers offer flexible packaging options ranging from 25kg fiber drums to bulk bags, ensuring material integrity during transit. Storage conditions typically require keeping the material in a cool, dry place, sealed away from moisture to prevent hydrolysis or clumping. A reliable global manufacturer will maintain safety stock to mitigate logistics delays.
Comparison of Grade Standards
| Attribute | Lab/Reagent Grade | Industrial/Pharma Grade |
|---|---|---|
| Purity Target | > 95.0% | > 98.0% - 99.0% |
| Documentation | Standard COA | Full Validation Package (DMF support available) |
| Packaging | Bottles (100g - 1kg) | Drums (25kg+) / Bulk |
| Traceability | Limited | Full Batch Traceability |
Conclusion
Selecting the right partner for chemical intermediates is a strategic decision that impacts the entire production lifecycle. The specifications for 2-bromo-1,4-dicarboxylic acid must align with the rigorous demands of modern drug discovery and manufacturing. By prioritizing industrial purity, robust analytical validation, and supply chain reliability, companies can ensure seamless operation.
For organizations requiring scalable quantities and technical support, NINGBO INNO PHARMCHEM CO.,LTD. provides the expertise and infrastructure necessary to meet these challenges. With a commitment to quality and consistent manufacturing process controls, we facilitate the efficient development of next-generation pharmaceutical products.