Sourcing (1R,2R)-1,2-Cyclohexanedicarboxylic Acid for Lurasidone
Benchmarking (1R,2R)-1,2-Cyclohexanedicarboxylic Acid Assay Against TCI America C1953 Specifications
When evaluating a Pharmaceutical synthon for critical API production, direct comparison against established market specifications is essential. Our internal quality control protocols utilize the TCI America C1953 specifications as a baseline benchmark for assay and physical properties. This ensures that the Chiral dicarboxylic acid supplied meets the rigorous demands of modern medicinal chemistry workflows. At NINGBO INNO PHARMCHEM CO.,LTD., we maintain batch records that align with these recognized standards to facilitate seamless technology transfer.
The following table outlines the key technical parameters we monitor to ensure equivalence or superiority against standard reference specifications. This data is critical for R&D managers validating raw materials for process development.
| Parameter | Typical Specification | Test Method |
|---|---|---|
| Assay (GC) | ≥98.0% | Gas Chromatography |
| Enantiomeric Excess | ≥99.0% | Chiral GC/HPLC |
| Melting Point | 165-169°C | DSC / Capillary |
| Appearance | White Crystalline Powder | Visual Inspection |
| Loss on Drying | ≤0.5% | Karl Fischer / LOD |
Consistency in these parameters reduces the risk of batch failure during the subsequent coupling reactions required for Lurasidone intermediate production. Deviations in melting point or assay often indicate the presence of structural isomers that can complicate downstream purification.
Validating ≥98.0%(GC)(T) Purity Thresholds for Lurasidone API Intermediate Compliance
Maintaining an industrial purity level of ≥98.0% by Gas Chromatography is not merely a specification box to check; it is a functional requirement for the synthesis route of Lurasidone. Impurities above this threshold, particularly the (1S,2S) enantiomer or the cis-isomer, can act as chain terminators or introduce stereocenters that are difficult to remove in later stages. Our high-purity (1R,2R)-1,2-Cyclohexanedicarboxylic Acid is processed to minimize these specific contaminants.
For process chemists, validating this purity involves more than reviewing a certificate. It requires understanding the detection limits of the GC method used. Trace impurities near the 0.1% level may not impact small-scale lab synthesis but can accumulate during commercial scale-up, affecting the color and crystallization profile of the final API. We recommend conducting incoming raw material testing using your validated internal methods to confirm alignment with your specific process tolerances.
Critical COA Parameters: Enantiomeric Excess, Chiral GC Methods, and Impurity Limits
The Certificate of Analysis (COA) is the primary document for quality assurance, but experienced engineers know to look beyond the standard pass/fail indicators. The enantiomeric excess (ee) is the most critical parameter for this Trans-1, 2-Cyclohexanedicarboxylic acid derivative. A high ee value ensures that the stereochemistry of the final drug substance is preserved without requiring costly recrystallization steps to upgrade optical purity.
From a field engineering perspective, there is a non-standard parameter that often goes unreported on standard COAs but significantly impacts handling: the hygroscopic behavior during weighing in high-humidity environments. While the Loss on Drying (LOD) specification covers bulk moisture, we have observed that prolonged exposure to ambient humidity during reactor charging can lead to slight variations in stoichiometric dosing. This is due to surface adsorption rather than bulk hydration. For precise reactions, we advise keeping the material in a controlled atmosphere until the moment of addition to ensure accurate molar ratios. Please refer to the batch-specific COA for exact moisture content values at the time of packaging.
Bulk Packaging Integrity and Stability Data for Long-Term R&D Storage
Proper packaging is vital for maintaining the stability of organic acids during transit and storage. We utilize multi-layer kraft paper bags with polyethylene liners or 25kg fiber drums depending on the order volume. This physical packaging strategy protects the material from moisture ingress and physical contamination. It is important to note that we focus on the physical integrity of the containment system to ensure the product arrives in the condition it left the facility.
For long-term R&D storage, we recommend keeping the containers sealed in a cool, dry environment away from direct sunlight. Under these conditions, the chemical stability of the dicarboxylic acid remains robust over extended periods. However, once opened, the material should be used promptly or resealed under inert gas if stored for future campaigns to prevent potential degradation or moisture uptake that could alter the physical flow properties of the powder.
Supply Chain Verification for Consistent Purity Grades in Commercial Scale-Up
Transitioning from gram-scale synthesis to kilogram or tonnage production requires a Stable supply chain capable of delivering consistent quality across multiple batches. Variability in raw material quality is a leading cause of process deviations during scale-up. Our manufacturing process is designed to minimize batch-to-batch variation in impurity profiles.
We maintain rigorous internal tracking of production runs to ensure that the manufacturing process yields consistent results. This allows procurement managers to forecast material needs with confidence, knowing that the chemical profile will remain stable over time. Consistency in the supply of (1R,2R)-(-)-1,2-Cyclohexanedicarboxylic Acid reduces the need for re-validation of processes between batches, saving both time and resources during commercial manufacturing.
Frequently Asked Questions
What is the standard lead time for bulk orders?
Standard lead times vary based on current inventory levels and production scheduling. Please contact our sales team for a specific timeline based on your required tonnage.
Can you provide custom packaging for laboratory use?
Yes, we offer custom packaging solutions to meet specific R&D requirements, including smaller unit sizes upon request.
What documentation is provided with each shipment?
Each shipment includes a Certificate of Analysis (COA), a packing list, and a commercial invoice. Additional technical documents can be provided upon request.
Is the material suitable for GMP manufacturing?
Our materials are produced under strict quality control systems. Please discuss your specific GMP requirements with our technical team to ensure compliance with your internal standards.
Sourcing and Technical Support
Securing a reliable source for critical chiral intermediates is a strategic decision for any pharmaceutical manufacturer. NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing high-quality chemicals supported by robust technical data and reliable logistics. We understand the complexities of API synthesis and strive to be a partner in your supply chain success. Ready to optimize your supply chain? Reach out to our logistics team today for comprehensive specifications and tonnage availability.