4,5-Difluoro-2-Methylbenzoic Acid CAS 183237-86-7 Specifications
Critical Specifications for 4,5-Difluoro-2-methylbenzoic Acid
When evaluating 4,5-Difluoro-2-methylbenzoic Acid (CAS 183237-86-7) for integration into complex synthesis pathways, precise molecular characterization is paramount. This fluorinated benzoic acid derivative serves as a critical organic building block for pharmaceutical intermediates and agrochemical research. The molecular formula is C8H6F2O2, with a molecular weight of 172.1288 g/mol. Understanding the baseline physicochemical properties ensures compatibility with downstream reactions and prevents unexpected deviations during scale-up.
At NINGBO INNO PHARMCHEM CO.,LTD., we prioritize transparency regarding batch-specific variability. While standard certificates of analysis (COA) cover primary purity metrics, R&D managers must account for subtle variations in trace impurities that can influence catalytic performance. The following table outlines the typical technical differentiation between standard industrial grades and high-purity specifications required for sensitive medicinal chemistry applications.
| Parameter | Industrial Grade | High Purity Grade | Testing Method |
|---|---|---|---|
| Purity (HPLC Area %) | >98.0% | >99.5% | HPLC |
| Water Content (Karl Fischer) | <0.5% | <0.1% | KF Titration |
| Heavy Metals | <20 ppm | <10 ppm | ICP-MS |
| Residual Solvents | Class 3 Compliant | Class 2/3 Limited | GC-MS |
| Appearance | Off-white to White | White Crystalline | Visual |
Procurement decisions should not rely solely on nominal purity. The presence of isomeric impurities, such as other Methylfluorobenzoic acid variants, can alter reaction kinetics. Always request a full impurity profile when qualifying this material for GMP-adjacent processes.
Addressing 4,5-Difluoro-2-Methylbenzoic Acid Cas 183237-86-7 Challenges
Handling fluorinated aromatics requires specific attention to physical behavior beyond standard safety data sheet (SDS) information. A common oversight in the sourcing of 4,5-Difluoro-2-Methylbenzoic Acid Cas 183237-86-7 is the management of crystallization habits during temperature fluctuations. In our field experience, this compound can exhibit polymorphic variation depending on the cooling rate employed during the final isolation step of the synthesis route.
Specifically, rapid cooling may induce the formation of needle-like crystal structures rather than the preferred plate morphology. This non-standard parameter significantly impacts bulk density and flowability. For automated dosing systems in pilot plants, poor flowability caused by needle formation can lead to bridging in hoppers or inconsistent feed rates. We recommend specifying bulk density requirements alongside purity when ordering tonnage quantities. Additionally, trace moisture absorption can occur if packaging integrity is compromised, potentially depressing the observed melting point range during DSC analysis. This is often misinterpreted as a purity issue when it is actually a handling artifact.
To mitigate these risks, ensure that the industrial purity specification includes limits on particle size distribution if the material is intended for direct solid-state processing. Our technical team advises storing the material in a controlled environment to maintain consistent physical properties prior to use. For detailed handling guidelines regarding specific batch characteristics, please refer to the batch-specific COA provided upon shipment.
Global Sourcing and Quality Assurance
Securing a reliable supply chain for specialized intermediates like C8H6F2O2 derivatives requires a partner with robust logistics capabilities. As a global manufacturer, we understand that lead times and packaging integrity are as critical as chemical specifications. We utilize standardized industrial packaging solutions designed to protect the material from physical damage and environmental exposure during transit.
Standard export packaging typically includes 25kg fiber drums with double polyethylene liners to ensure moisture resistance. For larger volume requirements, we can accommodate IBC totes or customized drum configurations based on the destination port's handling infrastructure. It is essential to verify that the packaging materials are compatible with acidic organic solids to prevent liner degradation. Our logistics team coordinates directly with freight forwarders to minimize transit time, reducing the risk of thermal exposure which could affect the physical state of the product.
Quality assurance protocols extend beyond the final test. We maintain strict chain-of-custody documentation to ensure that the material received matches the production batch records. When you partner with NINGBO INNO PHARMCHEM CO.,LTD., you gain access to comprehensive technical support regarding shipping classifications and physical handling requirements. We focus on factual shipping methods and physical packaging integrity to ensure the product arrives in the condition specified.
Frequently Asked Questions
What is the solubility profile in common organic solvents?
4,5-Difluoro-2-methylbenzoic Acid generally exhibits good solubility in polar aprotic solvents such as DMSO and DMF, as well as in alcohols like methanol and ethanol. Solubility in non-polar solvents like hexane is typically limited. Exact solubility concentrations vary by temperature and specific batch crystallinity. Please refer to the batch-specific COA for detailed solubility data relevant to your specific process conditions.
How should the material be stored to ensure stability?
To maintain chemical stability and physical integrity, store the material in a cool, dry, and well-ventilated area away from direct sunlight. The container should remain tightly closed when not in use to prevent moisture uptake, which can affect melting point and flow characteristics. Under recommended storage conditions, the material maintains its specified properties over extended periods. Always inspect the material for clumping or discoloration before use.
Is custom packaging available for light-sensitive materials?
Yes, we offer custom packaging solutions to protect materials from environmental factors. While this compound is not extremely photosensitive, we can utilize amber-lined drums or opaque outer packaging upon request to minimize light exposure during storage and transit. Discuss your specific lighting constraints with our logistics team to arrange appropriate packaging configurations that meet your facility's safety standards.
Sourcing and Technical Support
Effective procurement of fluorinated intermediates demands a balance of technical precision and logistical reliability. By understanding the nuances of crystallization behavior and packaging requirements, R&D managers can prevent downstream processing issues. We provide the necessary documentation and physical product quality to support your development timelines. For more detailed product information, view our 4,5-Difluoro-2-methylbenzoic Acid supplier page. Ready to optimize your supply chain? Reach out to our logistics team today for comprehensive specifications and tonnage availability.