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N-Acetyl-L-Asparagine

    • Product Name N-Acetyl-L-Asparagine
    • Alias N-Acetylasparagine
    • Einecs 221-611-7
    • 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
    VTB
    Specifications

    HS Code

    558964

    Chemical Name N-Acetyl-L-Asparagine
    Molecular Formula C6H10N2O4
    Molecular Weight 174.16 g/mol
    Cas Number 20494-86-6
    Appearance White to off-white powder
    Solubility In Water Soluble
    Purity Typically ≥98%
    Storage Temperature 2-8°C
    Iupac Name N-acetyl-L-asparagine
    Boiling Point Decomposes before boiling
    Melting Point 194-198°C (dec.)
    Synonyms Acetylasparagine; N-Acetylasparagine
    Optical Activity [α]20/D +16° (c=1, H2O)
    Inchi Key MEAGQZAMNQYYJP-BYPYZUCNSA-N
    Pubchem Cid 439015

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

    Packing & Storage
    Packing N-Acetyl-L-Asparagine is supplied in a sealed amber glass bottle, 5 grams, with product label detailing chemical name, purity, and safety information.
    Shipping N-Acetyl-L-Asparagine is shipped in tightly sealed containers under cool, dry conditions to preserve stability and prevent contamination. Packaging complies with chemical safety regulations, using clearly labeled, durable materials. Standard shipping methods are used, as the compound is not classified as hazardous for transport under most regulations.
    Storage N-Acetyl-L-Asparagine should be stored in a tightly closed container at 2-8°C (refrigerated) and protected from light and moisture. Ensure the storage area is well-ventilated and free from incompatible substances. Avoid prolonged exposure to air. Proper labeling and secure storage help maintain chemical stability and prevent contamination or degradation of the compound.
    Application of N-Acetyl-L-Asparagine

    Applications of N-Acetyl-L-Asparagine in Industrial Manufacturing

    N-Acetyl-L-Asparagine serves as a specialty intermediate across select industrial verticals requiring precise amino acid derivatization. As a dedicated manufacturer, we deliver this product with consistent specification control for integration into high-value formulated goods. The following sectors detail current application practices and underlying technical requirements.

    1. Pharmaceutical Active Pharmaceutical Ingredient (API) Synthesis

    Pharmaceutical companies incorporate N-Acetyl-L-Asparagine in peptide drug manufacturing processes, particularly in the acylation steps for sequence-specific peptide chains. Its controlled reactivity and high-purity profile support cGMP small-molecule or peptide-based API production. Companies use the material for introducing specific acetylated asparagine residues, vital for regulated bioactive conformations. Strict management of impurities and enantiomer specificity ensures risk mitigation during downstream synthesis, while batch records are maintained in accordance with strict international pharmaceutical standards.

    Industry compliance standards

    • ICH Q7: Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP/NF (United States Pharmacopeia/National Formulary)
    • Ph. Eur. (European Pharmacopoeia)
    • 21 CFR Part 210/211: US FDA Current Good Manufacturing Practice

    Typical usage ratio

    • 0.1–1.0 molar equivalent relative to total peptide sequence; adjusted based on peptide complexity and protection/deprotection scheme

    Downstream process integration

    • Added during solid-phase or solution-phase peptide assembly, specifically during the protected amino acid coupling stage

    Final product types

    • Peptide APIs (e.g., synthetic peptide hormones, enzyme analogues)
    • Specialty oligopeptides with acetylated asparagine residues
    • Pharmaceutical reference standards

    2. Nutritional Supplement and Medical Food Formulation

    Companies in the nutritional and clinical dietary sectors leverage N-Acetyl-L-Asparagine as an amino acid source for specialized medical foods. It is used in enteral nutrition blends developed for specific metabolic management, especially in patient populations with asparagine metabolism disorders. Accuracy in inclusion level, microbiological safety, and traceability of origin are essential for meeting regulatory review and product registration in international markets.

    Industry compliance standards

    • 21 CFR 104.20: US FDA Requirements for the Special Dietary Food
    • EU Regulation (EU) No 609/2013 for Foods for Specific Groups
    • FSMP (Food for Special Medical Purposes) Regulations – China
    • ISO 22000: Food Safety Management System

    Typical usage ratio

    • 0.5–2.0% w/w in finished nutritional powder or liquid formulation; adjusted per clinical trial data and patient safety requirements

    Downstream process integration

    • Blended with amino acid premix during emulsion processing or dry powder mixing stages

    Final product types

    • Oral nutritional supplements for hospital or home administration
    • Pediatric formula for inborn errors of metabolism
    • Dietetic foods indicated for protein-modified diets

    3. Biotechnological Enzyme Substrate and Cell Culture Applications

    Industrial biotech and fermentation companies utilize N-Acetyl-L-Asparagine to optimize cell culture performance or as a defined substrate in protein expression screens. The compound supports metabolic pathway investigations and enhances the amino acid profile in serum-free and animal component-free media. Precise quantitative addition ensures consistency for large-scale fermentation bioreactors and maintenance of reproducible process yields, especially in the development of recombinant proteins.

    Industry compliance standards

    • ISO 13485: Medical Devices Quality Management for Bioprocessing Equipment
    • USP <1043>: Ancillary Materials for Cell, Gene, and Tissue-Engineered Products
    • EMEA Guideline on Human Cell-Based Medicinal Products (EMEA/CHMP/410869/2006)
    • ICH Q5A: Quality of Biotechnological Products

    Typical usage ratio

    • 0.05–0.5 g/L in cell culture media formulations; fine-tuned by media optimization using Design of Experiments (DoE)

    Downstream process integration

    • Dosed during upstream fermentation batch preparation or continuous perfusion feed, pre-sterilization

    Final product types

    • Recombinant therapeutic proteins
    • Monoclonal antibodies
    • Functional cell biomass for enzyme production

    4. Diagnostic Reagents and Biochemical Analysis Kits

    Manufacturers of in vitro diagnostic (IVD) kits and biochemical analyzer reagents use N-Acetyl-L-Asparagine as a substrate in enzyme activity assays and as an internal standard in quantitative amino acid analysis protocols. Stringent control over material purity, absence of interfering substances, and validated consistency batch-to-batch form critical components of the supply contract for regulated IVD production. The compound supports both routine clinical lab testing and advanced research diagnostic product lines.

    Industry compliance standards

    • ISO 13485: Quality Management Systems for Medical Devices including IVDs
    • IVDR (EU) 2017/746: Regulation on In Vitro Diagnostic Medical Devices
    • US FDA 21 CFR 820: Quality System Regulation for Medical Devices
    • CLSI MM17: Validation and Verification of Multiplex Nucleic Acid Assays

    Typical usage ratio

    • 0.1–1.0 mM in reagent formulation; level determined by detection threshold and assay protocol

    Downstream process integration

    • Incorporated into premixed reagent concentrations during kit compounding, prior to freeze-drying or liquid filling

    Final product types

    • Enzyme-based diagnostic kits for clinical analyzers
    • Research-use-only biochemical reagent kits
    • In vitro diagnostics for amino acid profiling
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    Certification & Compliance
    More Introduction

    N-Acetyl-L-Asparagine: Manufacturer’s Perspective on Our Reliable Product

    Introduction to N-Acetyl-L-Asparagine

    From early research benches to current-day reactors in our facility, we have seen the story of N-Acetyl-L-Asparagine unfold across many decades. Chemists in both the laboratory and the factory appreciate this molecule for more than just its chemical name or its formula, C6H10N2O4. In our hands, it comes alive as a reagent for biochemistry, a tool for pharmaceutical applications, and a reliable material for diagnostics and academic research.

    The main feature that draws scientists and industry partners to N-Acetyl-L-Asparagine is its purity profile. Trace-level impurities, residual solvents, particle morphology—these details, sometimes seen as minor on paper, shape the real performance of the compound in downstream uses. We control our process tightly from raw amino acid selection through to acetylation, isolation, and drying. This product, under model number NAASN-P, ships as a white, crystalline powder, free-flowing and stable under typical temperature and humidity conditions for long-term storage. Each batch receives full HPLC, NMR, and MS assay validation. Over time, this focus on consistency has helped eliminate rework, optimize yield for clients, and keep analytical surprises away from finished product lines.

    Pharmaceutical and Life Science Uses

    Working on peptide synthesis, protein modification, or metabolic pathway research, buyers value N-Acetyl-L-Asparagine as a non-essential amino acid derivative that does not self-oxidize or hydrolyze under gentle laboratory handling. Pharmacologists request it because their formulations rely on clean, acetylated analogs to tag or block certain metabolic routes. The acetyl group, attached at the alpha-amino position, gives a subtle but important difference in reactivity compared to the parent L-Asparagine. It does not participate in the same hydrogen bonding, which can affect protein folding behavior and enzymatic recognition. These small structural twists make a big difference in applications as diverse as marker labeling, enzyme inhibition studies, and recombinant protein expression.

    In nutritional science, visitors from university research groups and supplement developers select our N-Acetyl-L-Asparagine for its intact chirality and absence of D-isomer contamination. Facilities with less advanced purification, or with semi-synthetic processes, run the risk of racemization during acetylation or crystallization steps. We take pride in documenting the optical rotation and enantiopurity of each lot, not because regulations demand it, but because test results show that even minor isomeric contamination can derail experiments or compromise supplement efficacy.

    Why Purity and Batch Consistency Matter

    For a manufacturer, even tiny inconsistencies in raw material can ripple through to expensive process deviations. Our chemists track moisture content, particle size distribution, and trace ion contamination so closely because we have seen collaborations fall apart over a poorly performing amino acid derivative. Take something as routine as an in-process peptide coupling: too much water bound into the crystalline matrix can slow reaction times or lower yields by creating microphase environments favoring unwanted side-products. Likewise, an acetyl-L-asparagine sample carrying unexpected chloride or sodium traces can interfere with biological assays, leading to false negatives or erratic binding curves. Chemical academia tolerates only so much deviation—our R&D team continually refines drying protocols, solvent recovery, and particle sizing to meet the needs of these clients.

    Our in-process controls were not built overnight. Early on, we encountered persistent issues with solvent residues, inherited from legacy process conditions used before advanced drying technology was available. Feedback from end users running mass spectrometry flagged this. Since then, we have shifted to higher-vacuum, lower-temperature evaporation, and adopted specific in-line NMR monitoring. The result: our NAASN-P has developed a reputation for clean chromatograms and minimal background in sensitive analytical applications.

    Comparing N-Acetyl-L-Asparagine to Other Acetylated Amino Acids

    The market offers many acetylated amino acids, but N-Acetyl-L-Asparagine holds a specific place due to its biosynthetic origins and side-chain reactivity. Not all acetylated amino acids sit equally within protein engineering, diagnostics, or preparative peptide work. For instance, N-Acetyl-L-Leucine or N-Acetyl-L-Phenylalanine serve structural and hydrophobic roles in model peptides, and the aromatic or branched-chain acetylated species often bring steric obstacles. N-Acetyl-L-Asparagine, with its polar, uncharged amide in the side chain, helps maintain solubility and does not introduce hydrophobic collapse into peptide mixtures. In protein folding studies, this becomes a big advantage—our product is trusted in labs refining protein backbones and designing new bioactive mini-proteins.

    Customers ask why we recommend N-Acetyl-L-Asparagine over N-Acetyl-L-Aspartic acid for certain biomedical protocols. The answer lies in the subtlety of the amide versus acid side chain. The asparagine side chain remains neutral at physiological pH, making the compound less likely to participate in ionic reactions or buffer shifts than the acidic Asp analog. For cell culture or drug development where tightly controlled pH and salt content matter, this property saves hours of troubleshooting.

    Those working with other amino acid derivatives often don’t realize their suppliers may blend in unspecified stabilizers or drying agents. Our N-Acetyl-L-Asparagine comes free of these extras. That transparency has won over long-term partners—not with glossy brochures, but with steady results on instrument printouts, clean NMR spectra, and the absence of unexpected peaks under mass spectrometry.

    Traceability and Documentation: Bridging the Lab-Floor Gap

    Process control and traceability mean different things to a scientist at the bench and a plant operator. Our records come from years of batch synthesis, tens of thousands of kilograms produced, and regular customer audits. Even small differences in solvent supplier, temperature program, or crystallization cooling rate show up in performance, so we keep every parameter recorded and accessible to our QA teams. For those working in regulatory environments or running GLP labs, those certificates mean less troubleshooting and clearer regulatory audits. All batch data are archived, from spectroscopic fingerprints to microbial purity tests. We supply full documentation on request because direct communication with our scientific partners has removed the friction that can stall projects.

    In practical terms, we guarantee not just COA transparency but full batch records available to authorized partners. FDA registered facilities and major pharmaceutical research divisions have tested and validated our documentation chain. Feedback from CROs and development chemists points out that this not only simplifies their internal QA but reduces the lead times that come with resampling or dispute resolution.

    One story comes to mind—a client flagged a deviation in crystallinity and suspect polymorphism in a large-scale shipment intended for diagnostic test reagent manufacture. Our archived process logs helped them pinpoint a shift in cooling rates during crystallization, and we provided a corrected batch that met their precise requirements in less than two weeks. Open record-keeping does more than box-checking. It brings faster solutions when challenges appear, and it reassures research personnel trying to meet deadlines for clinical trial material preparation.

    Endurance in Supply: Manufacturing Commitment, Not Just Sales

    Many companies entering the specialty amino acid sector operate as intermediaries. We run the reactors, manage solvent recovery, and oversee the drying, not because it’s glamorous, but because the finished quality can’t be left to chance. The global supply chain makes it tempting to cut corners or outsource problem steps. We have learned day by day that retaining core manufacturing steps gives more than just peace of mind; it brings agility when clients request variation in mesh size, packaging environment, or even custom moisture content for specialized applications.

    Being a true manufacturer allows us to take direct responsibility for product improvement and troubleshooting. When process optimization is on the table—lowering temperatures to minimize racemization, updating filters to reduce particulate loads, or revalidating analytical HPLC for new impurity profiles—we do this in-house, leveraging chemist experience built over decades. Partners can walk our plant floor, review each critical step, and audit our documentation. This transparency breeds trust and speeds up product qualification at customer sites.

    We have weathered market shortages, raw material swings, and logistical disruptions without slipping on quality. Operating at scale, we consistently prioritize dependable timelines and logistics support. That durability has brought us more than just business; it has forged relationships with leading pharmaceutical brands, reference material suppliers, and university research consortia.

    Supporting Research and Development Efforts

    Improvements to N-Acetyl-L-Asparagine’s manufacturing rely on feedback from those handling the product in real-world conditions. Many optimization steps—like tighter control on end-point moisture or adjusting particle size for automated dispensers—emerged from conversations with lab technicians, not management meetings. When complaints come in—difficulty opening containers, powder compaction, or static buildup during weighing—our technical team jumps in to fine-tune packaging and flow aids. Simple tweaks, like anti-static liners or wider-mouth drums, reduce wasted time at the bench. These on-the-ground lessons have helped ensure our product not only works chemically but also fits seamlessly into modern laboratory and production routines.

    Peptide chemists sometimes ask for higher surface area powders to improve mixing in solid-phase synthesis. We have set up a dedicated micronization unit to respond to these requests. Biotechnologists developing cell-based assays highlight the need for ultra-low endotoxin N-Acetyl-L-Asparagine. We adjusted purification protocols and added new analytical layers on batch release to keep up. This willingness to learn from real problems—slow dissolution, statically charged powder, contamination risk—is how our product remains relevant for the market, year after year.

    Environmental Concerns and Sustainable Manufacturing

    Chemical manufacturing generates waste, consumes energy, and contributes to local and global resource use. We approach the synthesis of N-Acetyl-L-Asparagine mindful of these realities. Over the years, we have invested in closed-loop solvent recovery, use of renewable energy for high-consumption systems, and effluent reduction. These steps have cut annual emissions and helped us meet supplier requirements from clients running green chemistry audits. We have also worked with community groups near our plant to keep monitoring data open, supporting public trust in safe, responsible operation.

    On the packaging side, we reuse and recycle shipping drums, work with partners to streamline transportation, and adopt pallet return programs for larger customers. As new regulations on single-use plastic appear, we are testing biodegradable inner liners without increasing the risk of product contamination. Small changes scale up at a large facility—for example, switching to lower-impact chillers in purification labs has halved our energy use for some processes.

    Some buyers worry about residues and impurities in amino acids manufactured outside their region. We provide full disclosures on input source, waste management, and utility use. This gives peace of mind not just to environmental compliance staff but to R&D directors anxious about “forever chemicals” sneaking in from upstream suppliers.

    Capacity for Custom Synthesis and Scale Flexibility

    N-Acetyl-L-Asparagine arrives at facilities worldwide in lots of a few grams to drum loads. Research-grade customers want a guarantee of milligram precision and clear batch splits; pharmaceutical pilot plants look for scale-up capability with the same quality profile preserved. Our process design enables multiple batch sizes without sacrificing identity or purity. Years of running parallel reactors, monitoring heat and mass transfer, and maintaining tight controls over batch splits have made small-scale pilot work as robust as production orders. This removes the headaches for clients moving from research to process development.

    Some formulations or genomic labeling projects call for isotopically labeled N-Acetyl-L-Asparagine, or batches prepared with custom acetyl groups or purification profiles. Our chemistry team enjoys these challenges. We supply custom synthesis support, sharing protocols and documentation openly with client teams working under confidentiality. Minimal process drift and smooth technology transfer have given both parties confidence across projects.

    Many projects call for urgent material release—emergency shipments for clinical trial use, or expedited deliveries to avoid downtime at a key production step. Direct control over synthesis and packaging lets us respond almost instantly. Our logistics network, built up over decades, draws on direct relationships with shipping companies and real-time monitoring of global transportation status.

    Quality, Trust, and the Future of Specialty Amino Acids

    Much of the dialogue around chemicals comes back to quality and reliability. Our record with N-Acetyl-L-Asparagine comes not from one-off success stories, but from years of minimizing deviations, keeping lines of communication open, and investing in our own people and equipment. We invest in people and instruments that understand the fine details of analytical chemistry. This helps us identify issues before they reach the customer.

    Looking down the road, we expect more complex regulatory scrutiny, stronger demand for supply transparency, and the need to support increasingly sophisticated research. As new uses for acetylated amino acids emerge in diagnostics, targeted therapy, or biocatalyst design, we adapt by refining our processes and documentation. The next stage will see more integration of real-time QC, digital tracking from raw material entry to product shipment, and deeper collaboration with end users to co-develop standards that fit new applications.

    Our role as a producer places us alongside research and industry, responding to the small but critical changes that can decide the fate of an experiment or a production run. Manufacturing N-Acetyl-L-Asparagine means learning from the chemists who buy and use it, never assuming yesterday’s standards will be enough, and keeping transparency at the core of our operations. Trust builds over batches and years, directly on the plant floor and in the data we send out with every shipment.

    Contact and Product Availability

    N-Acetyl-L-Asparagine remains in steady supply. Our experienced team supports inquiries about scale, documentation, application troubleshooting, and special handling requests. Decades in the field, direct investment in fresh infrastructure, and feedback-driven improvements help us deliver a true manufacturing partnership for all users—whether in scale-up, R&D, or routine process manufacturing.