Industrial Purity Specifications Sodium 4-Aminosalicylate Dihydrate
- Strict adherence to CAS 6018-19-5 specifications ensures consistent anti-tuberculosis API synthesis.
- Advanced manufacturing process controls minimize critical impurities like related substances and heavy metals.
- Bulk procurement options available with comprehensive Certificates of Analysis for regulatory compliance.
In the pharmaceutical intermediate sector, maintaining rigorous quality control over key compounds is paramount for downstream API success. Sodium 4-Aminosalicylate serves as a critical building block in the production of antitubercular medications. As a global manufacturer committed to excellence, NINGBO INNO PHARMCHEM CO.,LTD. understands that the chemical integrity of this salt form directly influences reaction yields and final drug safety profiles. This technical overview details the essential purity specifications, compliance standards, and processing requirements necessary for large-scale procurement.
Key Quality Metrics: HPLC Purity, Impurity Profile, and Assay Range
The assessment of industrial purity for 4-Amino-2-hydroxybenzoic acid sodium salt dihydrate extends beyond simple titration. High-Performance Liquid Chromatography (HPLC) is the standard method for quantifying the main component and identifying related substances. For industrial applications, an assay range of 98.0% to 101.0% is typically required to ensure stoichiometric accuracy in subsequent synthesis steps. Impurities such as 4-amino-2-hydroxybenzoic acid (the free acid form) or oxidation products must be strictly controlled, often below 0.5% individually and 1.0% totally.
When sourcing high-purity Sodium 4-Aminosalicylate Dihydrate, buyers should prioritize suppliers who provide detailed chromatograms alongside their documentation. The presence of water molecules in the dihydrate form also necessitates precise Loss on Drying (LOD) testing. Typically, the water content should align with the theoretical value for the dihydrate structure, usually between 15.0% and 17.0%. Deviations here can indicate incomplete crystallization or exposure to humidity, which affects the bulk price valuation and handling protocols.
Furthermore, the physical form of the powder impacts processing. A white crystalline powder is the standard expectation, with a melting point around 250°C. Variations in color can indicate degradation due to light exposure, as the compound is known to be light-sensitive. Therefore, quality control teams must verify appearance specifications rigorously before accepting bulk shipments for production lines.
Technical Specification Table
| Parameter | Specification Standard | Typical Industrial Result |
|---|---|---|
| Appearance | White to Off-White Powder | White Crystalline Powder |
| Assay (HPLC) | 98.0% - 101.0% | 99.2% |
| Loss on Drying | 15.0% - 17.0% | 16.1% |
| Heavy Metals | < 10 ppm | < 5 ppm |
| Related Substances | < 1.0% Total | 0.4% |
| pH (1% Solution) | 6.5 - 8.5 | 7.2 |
Compliance with Pharmacopeial Standards (USP/EP) for API Intermediates
Regulatory compliance is non-negotiable in the pharmaceutical supply chain. Intermediates used for antitubercular agents must often align with United States Pharmacopeia (USP) or European Pharmacopoeia (EP) monographs, even if the intermediate itself is not the final API. Documentation such as the COA (Certificate of Analysis) must trace every batch back to specific quality control tests. This includes verification of the EINECS number and adherence to safety statements regarding handling and storage.
NINGBO INNO PHARMCHEM CO.,LTD. ensures that every shipment of 4-Aminosalicylic acid sodium salt dihydrate meets these rigorous standards. The material is sensitive to air and light, which requires specific packaging protocols to prevent degradation during transit. Regulatory bodies require evidence that the manufacturing process controls these environmental factors. Furthermore, safety data sheets must accurately reflect hazard categories, such as skin and eye irritation potential, to ensure safe handling in industrial laboratories and production facilities.
Proper labeling and hazard communication are critical for logistics. The compound typically carries hazard statements related to skin and respiratory irritation. Ensuring that all safety documentation is up-to-date facilitates smoother customs clearance and workplace safety audits. This level of documentation is essential for companies aiming to maintain Good Manufacturing Practice (GMP) standards throughout their supply chain.
Impact of Industrial Purity on Downstream Anti-TB Drug Synthesis
The chemical quality of Sodium p-aminosalicylate dihydrate directly impacts the efficiency of downstream reactions. In the synthesis of final API forms, impurities can act as catalyst poisons or lead to unwanted side reactions, reducing overall yield. For example, excessive moisture content beyond the dihydrate specification can interfere with anhydrous reaction conditions, while organic impurities might co-crystallize with the final product, complicating purification.
From a process chemistry perspective, consistent particle size and solubility profiles are also vital. The compound exhibits significant solubility in water and DMSO, which is leveraged during reaction workups. However, variability in these physical properties can lead to inconsistent dissolution rates, affecting reaction kinetics. By securing a supply chain that guarantees consistent industrial purity, manufacturers can optimize their synthesis routes, reduce waste, and ensure that the final antitubercular medications meet stringent safety efficacy requirements for patient use.
Understanding the synthesis route of the intermediate itself helps buyers anticipate potential impurities. Knowledge of the starting materials and reaction conditions allows quality assurance teams to test for specific byproducts. This proactive approach minimizes the risk of batch failures during the final drug manufacturing stage. It also ensures that the biological activity, which involves competing with PABA for enzymes in folate synthesis, is not compromised by chemical contaminants.
Procurement and Storage Considerations
For large-scale operations, securing a reliable global manufacturer is essential to mitigate supply chain risks. Bulk quantities should be stored in cool, dry places, ideally under ambient temperatures but protected from direct light to maintain stability over time. Long-term storage protocols often recommend sealed containers to prevent hydration changes. By partnering with a dedicated supplier, pharmaceutical companies can ensure continuity of supply for this critical intermediate, supporting global health initiatives against tuberculosis.
Solubility data indicates that the material dissolves well in aqueous solutions, often requiring sonication for rapid preparation in research settings. In an industrial context, mixing equipment must be capable of handling these dissolution profiles efficiently. Storage stability is generally robust when kept in powder form at controlled temperatures, but solutions should be prepared immediately before use to prevent degradation. These handling nuances are critical for maintaining the integrity of the chemical from the warehouse to the reactor.
In conclusion, the technical specifications of this chemical intermediate demand careful attention to assay, hydration state, and impurity profiles. High-quality sourcing ensures regulatory compliance and operational efficiency in API manufacturing. NINGBO INNO PHARMCHEM CO.,LTD. remains dedicated to providing top-tier chemical solutions that meet the evolving needs of the pharmaceutical industry.