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HS Code |
246372 |
| Chemical Name | D-Asparaginic Acid |
| Synonyms | D-Aspartic Acid |
| Molecular Formula | C4H7NO4 |
| Molecular Weight | 133.10 g/mol |
| Appearance | White crystalline powder |
| Solubility | Soluble in water |
| Melting Point | 260-270°C (decomposes) |
| Cas Number | 1783-96-6 |
| Ph Value | 2.4 (1% solution) |
| Optical Activity | Levorotatory |
| Boiling Point | Decomposes before boiling |
| Storage Conditions | Store in a cool, dry place |
As an accredited D-Asparaginic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | White, opaque plastic bottle labeled “D-Asparaginic Acid, 100g,” with a blue screw cap and safety seal; includes hazard symbols. |
| Shipping | D-Asparaginic Acid is shipped in tightly sealed containers to prevent moisture absorption and contamination. The package is clearly labeled and handled in compliance with chemical transport regulations. During transport, the product is protected from extreme temperatures, physical damage, and direct sunlight to maintain its purity and integrity. |
| Storage | D-Asparaginic Acid should be stored in a tightly closed container, in a cool, dry, and well-ventilated area. Protect it from light, moisture, and incompatible substances. Ideally, keep at room temperature and avoid extreme heat or cold. Always label the container clearly and store away from oxidizing agents or strong acids to prevent unwanted reactions and ensure product stability. |
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Purity 99%: D-Asparaginic Acid with 99% purity is used in pharmaceutical syntheses, where it ensures high yield and product consistency. Molecular Weight 133.1 g/mol: D-Asparaginic Acid with a molecular weight of 133.1 g/mol is applied in peptide synthesis, where it provides precise chain construction and reproducibility. Melting Point 242°C: D-Asparaginic Acid with a melting point of 242°C is used in high-temperature biochemical reactions, where it maintains chemical integrity without degradation. Particle Size <100 microns: D-Asparaginic Acid with particle size under 100 microns is used in nutraceutical formulations, where it promotes uniform blending and solubility. Stability Temperature up to 60°C: D-Asparaginic Acid stable up to 60°C is used in long-term storage of supplements, where it preserves activity and prevents breakdown. Optical Purity >98% ee: D-Asparaginic Acid with optical purity greater than 98% ee is utilized in chiral intermediate production, where it enhances enantiomeric specificity in final products. Solubility in Water 50 g/L: D-Asparaginic Acid with solubility of 50 g/L in water is used in aqueous injection solutions, where it allows for rapid and efficient dissolution. Low Heavy Metal Content (<10 ppm): D-Asparaginic Acid with heavy metal content below 10 ppm is used in medical device coatings, where it minimizes contamination risk and meets regulatory standards. |
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Working with amino acids for years has taught me that subtle differences in molecular structure can affect how a compound performs in the real world. D-Asparaginic Acid has a structure distinct from its more common L-isomer. This difference holds importance for scientists and formulators who need specific enantiomers for targeted biochemical pathways or for synthesizing complex molecules. We focus on producing this particular D-isomer with high purity, achieved through controlled reactions and advanced purification steps. In our manufacturing environment, tracking stereochemistry isn’t a minor detail. Only by maintaining strict process controls can we offer a D-Asparaginic Acid that meets the demands of advanced research or specialty chemical applications.
In chemical manufacturing, consistency matters. We do not approach D-Asparaginic Acid as a bulk commodity. Each batch reflects dedicated process refinement and thorough quality oversight. The journey from raw material to final product involves solvent extraction, crystallization, and drying steps carried out under monitored temperatures and controlled atmospheres. Our standard model of D-Asparaginic Acid, formed as a white crystalline powder, displays consistent appearance and a sharp melting point, which we monitor batch by batch as indicators of chemical purity. Chemical assays confirm an assay of not less than 99% on a dry basis. As manufacturers, we know that even small deviations can have outsized impacts, so regular HPLC and IR analyses back up our commitment to reliable content.
Requests for D-Asparaginic Acid come from labs focusing on enzyme research, pharmaceutical synthesis, biochemical pathway studies, and specialty resins. The material’s specific utility stems not just from its chirality, but also from its performance in reactions involving stereospecificity—a requirement that generic aspartic acid grades do not meet. We work with research teams who stress the importance of batch-repeatability. If one batch skews even a fraction, results can fall apart or need repeating, burning time and budgets. This fact drives us to monitor every truckload of starting material and each process step so that users do not face unnecessary variable controls in their work.
Chemists and formulators often want to know what distinguishes our D-Asparaginic Acid from alternatives or from the much more common L-form. We manufacture the D-form by enantioselective synthesis and precision separation; this approach leaves minimal chance for cross-contamination. As a white to off-white powder, D-Asparaginic Acid from our facility dissolves in water to form clear, stable solutions at neutral to slightly alkaline pH. The typical specification for moisture content stays below 0.5%, reducing risks of unwanted reactions in sensitive applications.
Researchers often cite solubility and stability as important parameters. We regularly conduct accelerated stability studies to confirm that samples retain molecular integrity over extended storage at room temperature. Our packaging staff work closely with the warehouse team to ensure all D-Asparaginic Acid leaves the facility in low-permeability, food-grade containers. This helps prevent atmospheric moisture uptake and keeps handling straightforward for end-users.
D-Asparaginic Acid has become a research focus in both biology and pharmaceutical development. Its mirror-image nature—compared to the universally encountered L-amino acids in proteins—offers utility in the rational design of drugs and in the study of racemic mixtures. Our production staff pay close attention to the integrity of the chiral center through each stage of synthesis and purification. Techniques such as chiral chromatography and polarimetry confirm the absence of significant L-isomer contamination.
Many of our partners in peptide chemistry turn to the D-form for incorporation into synthetic analogs. Use of this isomer can block enzymatic degradation in biological systems, a necessary feature in the development of probes, therapeutics, or diagnostic peptides. D-forms do not get recognized by most proteases or peptidases, granting them much longer activity in test systems. Compared to standard L-aspartic acid, which would be rapidly metabolized, our D-product allows users to explore metabolic fate, enzyme specificity, or create durable molecular scaffolds. Cropping up in journals as a distinct building block, usage of the D-isomer grows in parallel with refined separation and analysis methods.
Procurement teams sometimes assume all amino acids perform equally, regardless of their stereochemistry or how they are made. Experience shows otherwise. A kilogram of D-Asparaginic Acid differs fundamentally from the widely used L-form on the market, not just in cost but in the opportunity it creates for selectivity in end applications. We manufacture exclusively from qualified raw materials that meet strict chiral purity criteria, and we screen finished lots with qualified analytical equipment.
On technical grounds, the D-isomer will not serve as a direct nutritional supplement, unlike the L-form found in common food and pharma applications. Our focus for this product centers on its research, pharma precursor, and advanced materials uses. Any cross-contamination can cause test failures or costly misinterpretation of results. Through decades of amino acid production, we have seen how subpar purification practices undermine research reproducibility and put downstream development at risk.
Chemical producers who treat stereochemistry as an afterthought cannot deliver the reliability demanded by analytical, pharmaceutical, or bioscience laboratories. Every shipment from our plant comes with a full certificate of analysis detailing enantiomeric excess, related substances, loss on drying, and microbial counts for extra assurance. We also support direct discussions with technical teams so any custom requirements or concerns get attention before product leaves our warehouse.
D-Asparaginic Acid often finds its place at early development stages. Synthetic chemists value the predictability this compound brings to asymmetric synthesis. Its reaction profiles differ enough from standard aspartic acid that unique intermediates become accessible. Pharmaceutical groups have worked with us on process development for APIs where controlling stereochemistry in process streams protects intellectual property and end-product quality.
Biochemistry research groups use the D-form to study evolutionary questions and to explore new biological activity in enzyme-substrate recognition. By providing a steady supply free of L-isomer contamination, we help ensure their experiments do not suffer from ambiguous data. Some industrial partners in specialty polymer synthesis integrate D-Asparaginic Acid into designs to create non-biological degradation profiles or to adjust the hydrophilicity of advanced materials. We listen to these needs and refine batch sizes, packing, and analytical support as research goals evolve.
We respond to unique requests by offering tailored particle size ranges to help with dosing or dissolution, though the chemical content stays constant. Our logistics follow-up includes temperature-monitored shipping to high-sensitivity destinations, because the quality arriving in the lab matters more than the speed of shipment.
Teams on the manufacturing floor take pride in the detail work required for specialty amino acid production. Years ago, we moved from open-vessel crystallization to closed systems, reducing air contact and risk of introduction of unwanted microbial flora. This change greatly improved impurity profiles and batch reproducibility. Today, in-process controls remain tight at every step. Automated monitoring logs deviations for review in real time. Our trained technicians conduct spot checks and record every handling event, giving each finished batch a full chain of custody. This diligence builds trust between the factory and the research bench.
Our quality standards have grown alongside regulatory scrutiny for advanced intermediates. For D-Asparaginic Acid, each step from receipt of starting materials through to packaging and shipment gets logged and archived. Any deviation triggers an investigation before release. We routinely invite customer audits, not just from pharma partners but from public and private labs who demand full transparency. Our records support traceability back to the lot and operator level, cutting uncertainty for downstream users.
Having produced a wide range of amino acids, we have learned to anticipate not only what laboratories want, but also what they worry about. Broken supply chains, questionable batch records, and variable product quality all slow down discovery and innovation. By focusing on the D-form, we have deepened our analytical skills and our understanding of customer workflows. Regular dialogue with lead users helps us improve sampling techniques, reduce potential for cross-batch contamination, and train new staff in advanced handling protocols. These exchanges inform our investments in analytical technologies, staff experience, and process controls.
We do not operate on guesswork when it comes to distribution. Each export follows strict storage and documentation protocols to preserve batch integrity. We run stability trials not just to meet documentation requirements but to provide customers with real data on shelf-life under realistic storage conditions. This builds confidence for teams scheduling long-term studies.
Listening to direct user experiences has shaped how we produce and deliver D-Asparaginic Acid. Early feedback from university labs highlighted the need for single-lot deliveries to ensure all analytical samples originated from the same manufacturing campaign. Others pointed out challenges with static buildup and powder handling at gram scales. We responded by refining our filling and anti-static handling protocols for consistent powder flow and easy transfer in laboratory settings.
By prioritizing user experience, we have designed packaging that not only meets regulatory standards but also enhances daily workflow in the lab. This includes secure, resealable containers and clear, tamper-resistant labeling. Our packaging lines employ vision systems to catch any anomalies before shipment, which reflects our attention to both detail and usability.
Manufacturing specialty chemicals invites constant evaluation of waste streams and resource efficiency. Our D-Asparaginic Acid production uses feedstocks sourced from vetted and audited supply partners with documented environmental compliance. We reclaim solvents wherever possible and route non-contaminated waste through internal treatment processes. The inherent efficiency of modern enantioselective synthesis brings down both water and energy footprints compared to old methods, and all spent raw materials go to licensed recyclers.
For some customers, the sustainability footprint now ranks alongside product purity and cost. In response, we share lifecycle data for D-Asparaginic Acid on request and include environmental performance figures in our internal dashboards. We pursue incremental process improvements, supported by feedback from regular environmental assessments. This approach supports both customer expectations and broader environmental stewardship.
Every batch represents hands-on work from experienced chemical operators, process engineers, and quality teams. Years of training and shared objectives produce not just a chemical compound, but confidence that the product will meet its intended challenge. Our technicians understand the frustration that can come from a failed sequence or inconsistent analytical result due to subpar reagents. Their pride in the finished product finds its basis in clean instrumentation, careful recordkeeping, and attention to detail at every transfer point.
Handling D-Asparaginic Acid is not about maximizing throughput at the expense of quality. We have adjusted shift schedules to minimize fatigue for staff handling sensitive operations. Routine calibration and maintenance keep production and analytical equipment on spec. In high-purity amino acids, these day-to-day efforts shape the data and results that customers rely on. These are not theoretical commitments; they are earned habits from years of delivering specialty products to demanding partners.
As a manufacturing team, we see value in working directly with scientists, chemical engineers, and purchasing managers. Detailed questions about solubility, stability, and biochemical compatibility spark shared problem-solving. Whether users need gram-scale research samples or kilogram-scale batches for synthesis campaigns, we support them with technical and logistical guidance. Meetings with application chemists have led to technical datasheets adapted for end-user workflows, as well as to improvements in our lot-release documentation.
Post-delivery follow-up helps capture challenges outside the pure product itself—such as compatibility with automated dispensers or mixing equipment. Our support staff take these insights back to the production floor and to ongoing process improvement reviews. This loop strengthens the partnership between producer and user, ensuring continued support even after the initial supply is delivered.
D-Asparaginic Acid remains a specialty compound, which limits its production compared to mainstream amino acids, yet its role in advanced synthesis and analytical validation continues to grow. Laboratories tackling emerging frontiers in enzyme specificity, chiral synthesis, or material science need reagents they can count on batch after batch. Our focus on this compound reflects not only years of production experience, but also the shared challenges and aspirations of the people who use it.
We do not chase scale for its own sake. Each kilo of D-Asparaginic Acid comes with the full effort and insight of a manufacturing operation that recognizes what researchers, process developers, and analytical chemists value in a critical raw material: reliability, transparency, and support. By keeping customer needs at the center of our process, we support the innovation and precision required in today’s leading-edge chemical and bioscience fields.