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D-Asparagine Monohydrate

    • Product Name D-Asparagine Monohydrate
    • Alias D-Asparagine hydrate
    • Einecs 211-519-9
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    Specifications

    HS Code

    473022

    Product Name D-Asparagine Monohydrate
    Chemical Formula C4H8N2O3·H2O
    Molecular Weight 168.15 g/mol
    Appearance White to off-white crystalline powder
    Cas Number 2482-90-4
    Purity Typically ≥98%
    Solubility In Water Soluble
    Storage Temperature 2-8°C
    Melting Point Decomposes before melting
    Optical Activity D-isomer (dextrorotatory)
    Synonyms D-Asparagine hydrate; (R)-2-Aminosuccinamide monohydrate
    Inchi Key ZPUCOKVDVWQKHD-YOEHRIQHSA-N
    Ec Number 219-622-7
    Usage Biochemical research, chiral intermediate

    As an accredited D-Asparagine Monohydrate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing D-Asparagine Monohydrate is packaged in a sealed 100g amber glass bottle with a secure screw cap and clear labeling.
    Shipping D-Asparagine Monohydrate should be shipped in tightly sealed containers, protected from moisture and direct sunlight. Transport at ambient temperature unless otherwise specified. Ensure compliance with relevant local, national, and international regulations. Label packages according to hazard classifications, and include appropriate documentation for safe and prompt delivery. Handle with care to avoid contamination.
    Storage **Storage of D-Asparagine Monohydrate:** Store D-Asparagine Monohydrate in a tightly closed container, in a cool, dry, and well-ventilated area. Keep it away from moisture, heat, and incompatible materials. Protect from light and avoid sources of ignition. Recommended storage temperature is 2-8°C (refrigerator). Ensure that storage conditions prevent contamination and degradation of the product for optimal stability and shelf-life.
    Application of D-Asparagine Monohydrate

    Purity 99%: D-Asparagine Monohydrate with purity 99% is used in chiral chemistry synthesis, where it enhances enantiomeric purity in asymmetric catalysis.

    Molecular Weight 150.14 g/mol: D-Asparagine Monohydrate with molecular weight 150.14 g/mol is used in peptide sequencing, where it ensures accurate mass spectrometric differentiation.

    Melting Point 234°C: D-Asparagine Monohydrate with melting point 234°C is used in high-temperature pharmaceutical processes, where it maintains compound stability during formulation.

    Particle Size ≤ 50 µm: D-Asparagine Monohydrate with particle size ≤ 50 µm is used in biopharmaceutical excipient blending, where it promotes homogeneous mixing and consistent dosage.

    Water Content ≤ 7.5%: D-Asparagine Monohydrate with water content ≤ 7.5% is used in lyophilized active pharmaceutical ingredient (API) preparations, where it preserves hygroscopic integrity for extended shelf life.

    Optical Rotation [α]D20 +27.5°: D-Asparagine Monohydrate with optical rotation [α]D20 +27.5° is used in stereochemistry research, where it confirms chiral identity for quality assurance.

    Stability Temperature up to 100°C: D-Asparagine Monohydrate with stability temperature up to 100°C is used in cell culture media formulation, where it retains functional efficacy under sterile processing conditions.

    Heavy Metal Content < 10 ppm: D-Asparagine Monohydrate with heavy metal content < 10 ppm is used in enzymatic biosynthesis, where it minimizes contamination risk for sensitive biological systems.

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    Certification & Compliance
    More Introduction

    D-Asparagine Monohydrate: Building Reliability in Life Science Inputs

    Experience from the Production Floor

    Manufacturing D-Asparagine Monohydrate brings unique challenges each season. Our staff often mention the precise adjustments needed during the recrystallization stage. Temperature swings outside target by just a degree can affect yield and clarity. The result is a product best recognized for its distinct crystalline form and consistent monohydrate content. In the past, certain overlooked steps made separation from by-products tricky, but through careful record-keeping and repeated batch optimizations, we've largely overcome those barriers.

    What Sets D-Asparagine Monohydrate Apart

    Our customers in pharmaceutical, biochemical research, and peptide synthesis value D-Asparagine Monohydrate for its precise stereochemistry. D-series amino acids hold a special place in peptide design. Their chiral purity means laboratory teams rely on them for predictable enzyme-substrate interactions and biomolecule construction. Unlike the L-form variant, D-Asparagine displays different reactivity and biological roles. Blending is not an option; separation is confirmed through chiral HPLC analysis before anything leaves our warehouse.

    The monohydrate form presents ease in weighing and measuring. Its water content sits in a narrow band, protected by careful control of ambient humidity in our packaging rooms. This reduces variability during formulation and matches analytical weights noted on labeling. Our monohydrate is not a byproduct skimmed from another operation, but a purpose-made specialty chemical created for customers who demand accuracy.

    Model, Purity, and Consistency in Output

    We assign each lot a production model based on batch process changes. Current models reflect the use of upgraded reactor vessels and filtration steps aimed at tighter particle size control. With a purity consistently over 98%, third-party labs verify our internal test results via both NMR and enzymatic assay. Ammonium and trace metal content, frequent worries for researchers attempting sensitive assays, trend below most published guideline thresholds.

    Handling requests for higher purity or customized screening brings insight into the evolving needs of our buyers. Some research contracts require ultra-low residual solvents. To meet these, we operate supplementary vacuum drying and offer batch-specific impurity profiles. The key difference in our approach lies in transparency — every customer receives comprehensive documentation, directly tracing back to each process checkpoint.

    Hands-On Applications: What Users Rely On

    In the pharmaceutical sector, D-Asparagine Monohydrate helps map the behavior of chiral drugs. Drug development teams mention reduced batch failures once switching to our stable monohydrate form. Peptide synthesis shops often contact us for advice on dissolution; our production chemists work with them to resolve clumping or inconsistent solubility, drawing on years of data from real-world synthesis runs.

    Dietary supplement developers occasionally approach us for D-series amino acids, though D-Asparagine’s uses trend more toward specialty functional ingredients rather than mainstream nutrition. In some enzyme assay protocols, technicians prefer the monohydrate due to its more manageable hygroscopic profile compared to the anhydrous version. Analytical chemists highlight fewer issues with mass accuracy after switching to our batches, an indirect benefit from years of refining our in-process drying controls.

    The Value of Deep Process Knowledge

    Our production team spends much of its time solving problems at the source, instead of dealing with issues downstream. Over days and nights, our staff calibrates pH, tracks the seeding points, and makes sure reagent quality aligns with pharmacopoeia guidelines. Many in the chemical field underestimate the subtle differences this can create in the final product.

    We don’t chase small volume runs of questionable quality. The lab team studies trends in batch failures and cross-checks these with end-user complaints. This approach reveals the root of issues quickly, as opposed to only relying on statistical quality control after the fact. Our process documentation survives multiple audits per year, not to meet an abstract standard, but because our clients depend on accuracy each time they pick up the bottle.

    Understanding Differences from Other Products

    Some amino acid producers focus on L-series compounds, which dominate the nutritional and pharmaceutical industries. D-Asparagine sits in a separate application space, satisfying demand for research tools in neurobiology, synaptic signaling, microbial metabolism, and advanced peptide synthesis. We avoid cross-contamination by running dedicated production lines and validated cleaning cycles.

    Regular anhydrous asparagine, while applicable to certain formulations, does not offer the water stability of the monohydrate. This impacts weighing accuracy and can complicate GMP records when water of crystallization fluctuates. Our long-standing industrial users highlight how this simple difference saves weeks in batch troubleshooting each year. The monohydrate’s physical handling also leads to less static-related loss, a benefit our packers appreciate after years of managing both forms.

    Imported D-Asparagine, especially lots handled by traders or repackers, usually lacks full chain-of-custody on raw material sourcing. After several clients experienced failed synthesis or trace impurity issues using such sources, they turned to direct purchase from us, citing batch-to-batch reliability as a decisive factor. In essence, the difference is more than purity metrics; it’s the visible result of controlled process engineering on every level.

    From Bench Testing to Commercial Production

    Early collaboration with peptide labs taught us many lessons. These clients stressed timelines, batch variability, and paperwork around documentation. Their feedback drove adjustments — such as smaller container sizes, easy-open seals, and fast follow-up on COA requests — that we still offer. It’s not unusual for our team to troubleshoot solubility or pH drift directly with a project lead, sometimes sending sample splits for side-by-side comparison.

    With time, demand from newer sectors appeared. Biotech groups engineering unnatural amino acid-containing peptides contacted us with precise requests for D-Asparagine Monohydrate produced under semi-sterile conditions. Our quality engineers implemented environmental monitoring and low-bioburden handling steps, reporting results to the client before the first delivery. That experience keeps us on alert for new requirements. As techniques evolve, we adjust.

    Addressing Issues in Modern Supply Chains

    Lately our industry faces increased scrutiny on traceability. Buyers want more than a COA; they expect batch histories, real-time inventory data, and straightforward disclosure on process aids. In the past, gaps in digital recordkeeping created confusion during audits. We responded by rolling out an integrated digital batch tracking system that blends manufacturing, QA, and dispatch. Each drum or vial produced comes with a data trail accessible on demand. This raised initial costs but returned dividends in trust and repeat business.

    Temperature control during shipment poses another common challenge. Mishandled transit can trigger unwanted hydration or partial decomposition, especially in monohydrate forms. To combat this, our staff now employs validated shippers with real-time logging tags. Support teams monitor delivery and intervene early if excursions occur. In several cases, this fast response saved valuable research time for downstream users.

    Supporting Analytical Method Development

    Quality teams running analytical methods point out that matrix effects and carryover pose problems with poorly characterized amino acid lots. By working directly with manufacturers, researchers receive detailed impurity profiles, not just summary values. From our history, we’ve seen HPLC spikes or NMR signal amplitude shifts linked to low-level by-products. Our solution: every production cycle includes a full suite of identity, purity, moisture, and residual solvent data, archived and released for customer review.

    Large-scale users sometimes struggle with scaling standards between pilot and commercial runs. Our technical staff collaborates to scale up batch sizes while holding impurity levels steady. This helps clients avoid redocumenting methods or repeating regulatory submissions, demonstrating a practical advantage of partnering with manufacturers ready for close communication.

    Feedback from Real Customers

    We keep in touch with regular clients through repeat order cycles and informal feedback. One long-running pharmaceutical partner reported their research timeline shortened by two months upon switching to our D-Asparagine Monohydrate, thanks to fewer failed synthesis attempts. Another researcher, focused on novel polymer development, saw a marked drop in end-product haze by switching chemical suppliers. Our team values these stories for more than testimonials — each points us toward better process controls and customer support strategies.

    In a memorable case, a new biotech lab misjudged storage requirements and contacted us urgently on a weekend. Our team walked through the simplest corrective steps, shared storage protocol sheets, and provided overnight replacement for what could not be salvaged. The relationship that followed brought us deeper insights into supply chain vulnerabilities common in early-stage companies and reinforced our drive for clear, simple use and storage guidelines.

    Practical Solutions to Ongoing Industry Problems

    Routine problems in specialty chemical manufacturing range from vendor raw material inconsistency to unforeseen process drift. We handle these realities by vetting every incoming lot, running periodic stability studies, and setting aside reserve samples from every production cycle. This approach may seem labor-intensive, but it guarantees we have reference material available for troubleshooting and customer dialogue, even years after a lot leaves our facility.

    Trace solvent residue sometimes appears in specialty amino acid lots, especially after process changeovers or equipment maintenance. In response, we developed real-time VOC monitoring and added frequent staff training for rapid response to early warning signals. This not only tightened our reporting cycles but drastically reduced client complaints involving product taint or cross-batch contamination. The lessons learned echo back to our material planning and team rotations: hands-on vigilance works better than post-hoc corrections.

    Regulatory Demands and Quality Systems

    Markets now require traceability on raw materials reaching well beyond traditional audit standards. Our compliance teams ensure D-Asparagine Monohydrate meets both local and international registration deadlines, and documentation stands up to client and regulator scrutiny. Certifications matter to our clients — not simply as paperwork but as assurance that each step, from synthesis to packaging, follows tightly defined protocols. Gaps or ambiguities in data packages once hindered client submissions; now, we anticipate requests by maintaining transparent data sharing policies.

    We recognize that government regulations frequently shift. As new rules come into force, our regulatory group keeps ahead by joining industry groups, sharing best practices, and pushing new documentation requirements into our process templates before formal enforcement begins. This proactive culture, cultivated over years of audit experience, supports our clients as regulations grow more demanding.

    Looking Forward in D-Asparagine Monohydrate Manufacture

    As synthetic biology and high-throughput chemistry expand, demand for D-series amino acids continues to shift. Modularity in peptide design and bioengineering places higher requirements on chiral purity, physical stability, and transparent analytics. Our facility invests in people as much as technology, recognizing that deep skill retention reduces error frequency and builds the capacity for constant improvement.

    Environmental considerations now drive many purchasing choices. Our production team reviews waste minimization routinely and reclaims up to 80% of solvent used during process steps. The effect of this policy shows in lower disposal bills and tighter community relationships, especially among neighbors focused on sustainability.

    Staff at every level, from operators to quality engineers, undergo routine training not only in GMP but in efficient production practices and customer communication. This adds a layer of accountability and person-to-person trust that corporate handbooks cannot capture.

    Why D-Asparagine Monohydrate Demands Direct Manufacturer Partnership

    Each order shipped directly connects our manufacturing effort to its end-user’s purpose. Unlike intermediaries trading bulk chemicals with little knowledge of their origins or handling, our approach places technical understanding and transparency first. With every step, from synthesis through packaging, the team understands its impact on the research, process, or product downstream.

    The value in buying straight from the source sits not only in more reliable analytics or faster turnaround, but also in honest feedback loops. Our facility’s open-door policy on process data, specification sheets, and Q&A means users rarely operate in the dark. Questions on atypical reactivity, storage, or new applications regularly lead to process modifications that benefit every future batch.

    In summary, manufacturing D-Asparagine Monohydrate brings together hands-on chemical process experience, end-user-driven process refinement, and a culture of accountability. For those whose success depends on accuracy, transparency, and consistent supply, partnership with the actual producer forms the cornerstone of reliable innovation.