Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
Follow us:

N-Carbobenzoxy-DL-Aspartic Acid

    • Product Name N-Carbobenzoxy-DL-Aspartic Acid
    • Alias Z-Asp-OH
    • Einecs 252-349-4
    • 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

    153182

    Product Name N-Carbobenzoxy-DL-Aspartic Acid
    Cas Number 16882-98-1
    Molecular Formula C12H13NO6
    Molecular Weight 267.24
    Appearance White to off-white crystalline powder
    Melting Point 96-98°C
    Solubility Slightly soluble in water, soluble in organic solvents like ethanol and methanol
    Purity Typically ≥98%
    Storage Conditions Store at 2-8°C, protected from light and moisture
    Synonyms Z-Asp-OH, Cbz-Asp-OH
    Chemical Structure Carbobenzoxy (benzyloxycarbonyl)-protected aspartic acid
    Boiling Point Decomposes before boiling
    Usage Used in peptide synthesis as a protected amino acid

    As an accredited N-Carbobenzoxy-DL-Aspartic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White, sealed plastic bottle containing 25 grams of N-Carbobenzoxy-DL-Aspartic Acid; labeled with chemical details, hazards, and manufacturer information.
    Shipping N-Carbobenzoxy-DL-Aspartic Acid is shipped in tightly sealed containers to prevent moisture and contamination. It is packed in compliance with chemical safety regulations, protected from excessive heat, light, and humidity. The shipment includes proper labeling and documentation, ensuring safe handling during transit. Store at room temperature upon arrival unless otherwise specified.
    Storage **Storage of N-Carbobenzoxy-DL-Aspartic Acid:** Store N-Carbobenzoxy-DL-Aspartic Acid in a tightly sealed container, protected from light and moisture. Keep it at a cool, dry place, ideally at 2–8°C (refrigerated conditions). Avoid exposure to excessive heat or humidity. Ensure good ventilation in the storage area, and segregate from incompatible substances such as strong oxidizers or acids.
    Application of N-Carbobenzoxy-DL-Aspartic Acid

    Applications of N-Carbobenzoxy-DL-Aspartic Acid in Industrial Manufacturing

    N-Carbobenzoxy-DL-Aspartic Acid serves as a precision intermediate across several advanced manufacturing sectors. We supply material tailored for strict compliance and consistent quality, directly integrated into regulated production chains. Below, we outline key downstream uses by actual industry segment.

    1. Peptide Synthesis for Pharmaceutical Intermediates

    N-Carbobenzoxy-DL-Aspartic Acid is a protected amino acid derivative used by pharmaceutical manufacturers for solid-phase and solution-phase peptide synthesis. Its use as a building block assures controlled formation of peptide backbones during multi-step reactions, especially in the production of generic and specialty active pharmaceutical ingredients (APIs). The protected group enables selective deprotection steps that align with regulated process protocols, ensuring consistent batch yields and reproducibility required by drug makers.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • US FDA 21 CFR part 210/211 Current GMP for finished pharmaceuticals
    • European Pharmacopoeia 11.0, General texts on amino acid derivatives
    • USP–NF General Chapter <1078> on Peptide Synthesis

    Typical usage ratio

    • Integrated at 1.0–1.3 molar equivalents per target sequence position; ratio varies by peptide length and sequence design

    Downstream process integration

    • Introduced during the chain elongation cycle on solid-phase resins or in solution, following coupling reagent activation; N-terminal deprotection performed prior to next cycle

    Final product types

    • Pharmaceutical grade peptide APIs
    • GMP-compliant peptide intermediates
    • Generic and branded peptide drugs
    • Diagnostic peptide markers

    2. Fine Chemical Synthesis for Chiral Intermediates

    Chemical synthesis companies employ our material as a chiral auxiliary or aspartic acid source in the construction of complex intermediates. The carbobenzoxy-protected group enables selective transformations, valuable in multi-step reaction pathways leading to advanced fine chemicals with specific stereochemical requirements. This use remains crucial for downstream synthesis chains where optical purity and reliable protecting group stability are required.

    Industry compliance standards

    • REACH Regulation (EC) No 1907/2006 for chemical registration and safety
    • ISO 9001:2015 Quality Management Systems for chemical production
    • US EPA guidelines on specialty organic chemical synthesis

    Typical usage ratio

    • Applied at 0.9–1.2 molar equivalents as per the reaction design; ratio adjusted for desired optical activity and protecting group retention

    Downstream process integration

    • Charged in protection and deprotection steps; enters as the main substrate or building block in esterification, amidation, or cyclization stages

    Final product types

    • Chiral pharmaceutical intermediates
    • Optically pure fine chemicals
    • Protected amino acid derivatives for research
    • Enantioselective synthesis reagents

    3. Biochemical Research Reagents

    Academic and industrial R&D laboratories utilize this protected aspartic acid derivative for custom peptide assembly, structural biology, and protein engineering projects. The material provides controlled reactivity during research-scale syntheses, and complies with documentation requirements essential for publication and reproducibility in regulated environments.

    Industry compliance standards

    • ISO 17034 Reference Material Producer Accreditation
    • OECD Guidelines for the Testing of Chemicals
    • Good Laboratory Practice (GLP) Standards 21 CFR part 58

    Typical usage ratio

    • 0.95–1.1 molar equivalents per coupling step; excess amount minimized to reduce purification burden in small-scale research syntheses

    Downstream process integration

    • Added at protected amino acid coupling stage; process includes sequential deprotection and purification steps tailored for analytical requirements

    Final product types

    • Custom peptides for bioassays
    • Labeled standard peptides for mass spectrometry
    • Protein engineering intermediates
    • Biochemical assay substrates

    4. Diagnostic Kit Ingredient Production

    In the medical diagnostics industry, manufacturers employ this raw material in the scalable production of peptide-based markers and controls used within ELISA kits and rapid testing systems. The protected amino acid ensures selective coupling and purity, supporting traceability and compliance with diagnostic reagent standards for global markets.

    Industry compliance standards

    • ISO 13485:2016 Medical Devices—Quality Management Systems
    • In Vitro Diagnostic Medical Devices Regulation (EU) 2017/746 (IVDR)
    • US FDA 21 CFR Part 820 (Quality System Regulation for IVD)
    • WHO GMP for Medical Devices and Diagnostics

    Typical usage ratio

    • Used at 1.0 molar equivalent per marker synthesis position; ratio determined by kit batch size and peptide sequence

    Downstream process integration

    • Enters at the marker peptide chain assembly stage; process flows include high-purity assembly and analytical validation per batch

    Final product types

    • Synthetic peptide markers for ELISA
    • Quality control peptides for rapid diagnostic kits
    • Reference standards for medical testing
    • Peptide antigens for in vitro detection assays
    Free Quote

    Competitive N-Carbobenzoxy-DL-Aspartic Acid prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

    Get Free Quote of Sinochem Nanjing Corporation

    Flexible payment, competitive price, premium service - Inquire now!

    Certification & Compliance
    More Introduction

    N-Carbobenzoxy-DL-Aspartic Acid: Expertise in Reliable Chemical Production

    Understanding N-Carbobenzoxy-DL-Aspartic Acid in Chemical Manufacturing

    At our factory, years at the reactor bench have given us a clear perspective on what N-Carbobenzoxy-DL-Aspartic Acid means for both researchers and process engineers. Our team doesn’t just see this molecule as another line in a catalogue. It carries practical value in fields like peptide synthesis, pharmaceutical development, and biochemical research. Our production floors have turned out MTs of it, with each batch scrutinized and refined well beyond minimal regulatory demands.

    The Chemistry that Drives Results

    This amino acid derivative, with its signature benzyl carbamate (commonly called Cbz) protecting group, unlocks selective reaction control in peptide assembly. Many seasoned chemists depend on its ability to shield the amine function during stepwise coupling. Our N-Carbobenzoxy-DL-Aspartic Acid lets them build chains untroubled by premature side reactions that can waste precious reagents or add cost-cutting re-synthesis cycles. The backbone aspartic acid component anchors the molecule—an essential for enzymes, neurotransmitters, and other biologically active compounds.

    The DL designation signals we prepare the racemic mixture. In-house expertise ensures the D- and L- isomers are present in proper ratio, maintaining predictable chemistry for your synthesis needs. We’ve learned that not all labs want the complexity and cost of enantiomerically pure material when the process doesn’t demand it. For large-scale work, this often slashes both waiting times and budgets without sacrificing downstream performance in the right applications.

    From Raw Materials to Reliable Product

    Our chemical technologists know every step of N-Carbobenzoxy-DL-Aspartic Acid’s assembly. Sourcing pure aspartic acid, checking solvent quality, choosing reliable carbobenzoxy chlorides, and maintaining precise temperature controls keeps batch-to-batch difference negligible. A single fluctuation in pH or a moment of inattentive filtering during the workup can disturb final purity—a lesson proven in practice, not just literature. A rigorous hands-on process, from bulk fermentation to multi-step purification, supports laboratories requiring consistent results without surprises or awkward troubleshooting cycles caused by off-specification builds.

    Each shipment leaves our site after thorough chromatographic and NMR checks. We never rely on certificates alone. The technical team observes trends and historical data for subtle shifts that might suggest scale-up issues, leftover solvents, or residual acid traces. Analytical investment separates us from traders that depend on spot purchases or reselling. This is chemistry learned not from a desk but from gloves-on production where wasted batches affect real schedules and budgets.

    Why Researchers and Industrial Peptide Labs Choose Us

    In actual synthesis rooms, technical staff look for more than just a label or a minimum purity spec. They need a degreed supplier with technical accountability. It’s not about offering the longest list but knowing which details matter most. For example, the moisture affinity of this product can trip up automated synthesisers if unnoticed. We select containers and sealants proven in our own storage spaces to keep hydrolysis at bay. Once, during a summer heatwave, we saw a shift in trace-level impurities—so our warehouse protocols now adapt to environmental conditions, not fixed assumptions.

    Clients tell us inconsistency in product color, texture, or solubility triggers test delays and budget headaches. We get it—what feels like a small difference in lot-to-lot appearance can mean real-time purification issues or chromatogram drifts. Time spent on troubleshooting supplier mistakes adds up. By working from raw feedstock and taking nothing on faith, our techs spot subtle changes before they reach your bench. For labs spinning up new projects or scale-up teams under deadlines, this forethought prevents headaches, not just reorders.

    Delivering on Application Needs: Synthesis and Scale

    The main use remains as a protected amino acid in peptide assembly, but our product’s clean handling also benefits test groups studying enzyme inhibitors, drug candidates, and even some materials research with tailored polypeptides. Peptide chemists want a protecting group to block the aspartic acid’s amino function while allowing selective activation at the carboxy endpoint. N-Carbobenzoxy hits the sweet spot—robust enough to stay on during harsh coupling reactions, removable under controlled hydrogenolysis when the task is done. Synthetic routes sometimes vary, but the need for batchwise reproducibility stays the same across applications.

    Other variants exist—both enantiopure N-Carbobenzoxy-L-aspartic acid and unprotected aspartic acid are available from different suppliers. The all-L or all-D forms usually command higher prices due to costly optical separation or fermentation steps. That option fits when specific stereochemistry is crucial, for example, in advanced pharmaceutical candidates or sensitive receptor studies. The DL version offers a balance for broader research or preliminary screening, where yield, convenience, and cost factor more heavily than single-isomer requirements. Our facilities keep routine supply of racemic product since real-world labs have budgets and real pipeline pressures to meet.

    Differences That Matter: N-Carbobenzoxy-DL-Aspartic Acid Versus Alternatives

    Anyone who’s compared peptide synthesis pathways knows the importance of protecting groups. N-Carbobenzoxy differs from alternatives like Boc (tert-butoxycarbonyl) or Fmoc (fluorenylmethyloxycarbonyl). The Cbz group delivers stability under basic and mild acidic conditions, only giving way to catalytic hydrogen removal. Peptide routes that rely on hydrogenolysis for deprotection select Cbz for both reliability and familiarity—generations of literature protocols align with its chemistry. Boc and Fmoc each require different deprotection steps, and those can set up unwanted side reactions for sensitive substrates, especially where electrophilic components may react during cleavage.

    For aspartic acid specifically, leaving both carboxyl groups unprotected can backfire, with cyclization or unwanted crosslinking becoming all-too-common. Extra steps in the production floor see us double-check side-chain integrity so your work-ups stay on course. Our N-Carbobenzoxy-DL-Aspartic Acid, finished with a fine crystalline texture, delivers in both solid-phase methods and solution-phase assembly. No formula stays perfect across decades if the people making it don’t keep improving every detail in the process. We keep notes and improve—because client feedback after trial runs tells us what spec tables often miss.

    Packing and Delivery: Experience Speaks Loudest

    Shipping sensitive chemicals, especially protected amino acids, is not a side job for us. The packaging process takes its cues from observed realities, not just regulation text. We’ve encountered enough solvent leaks and moisture exposure incidents over the years to recognize which container types prevent incidents during trans-oceanic freight or deepwinter truck moves. Double-sealing with tamper-resistant lids, low-humidity packaging, and outer material selected for real atmospheric swings—these lessons stick the most after a mishap is prevented, not after a certificate is issued.

    Clients working across sectors—from university departments to major pharma schedule buyers—face unique storage and transfer conditions. The feedback loop we keep with technical managers lets us adapt shipment lot size, labeling, and inner packing details so your staff spends less time breaking down crates and more time in the hood or reactor.

    Navigating Regulatory and Quality Controls

    Any lab handling N-Carbobenzoxy-DL-Aspartic Acid feeds on trust—not just in specs, but in the depth of regulatory and quality controls behind every drum or bottle. Our compliance experts audit every raw material within our supply chain for consistency with chemical safety and environmental health guidelines set in our jurisdiction. QA checks look beyond purity numbers, drilling into residual solvents, potential byproducts, and matching lot histories. Failure to do so triggers retraining and process review, not just a backroom adjustment. Gates in production and packaging log detail at every handoff.

    For researchers needing documentation, we support full analytical profiles and supply chain transparency. Over the years, our clients have relied on these records to pass regulatory audits in their own facilities. Instead of waiting for requests or skirting inconvenient questions, we build information access into our batch release process from the start. Our technical writeups spend more lines on process rationale than just reporting numbers—a strategy bred from real customer audits and inspector reviews.

    Supporting Client Innovation

    Bringing a new peptide or chiral building block from bench to market, our clients move between small exploratory synthesis and commercial scale-up. We recognize the pressure these teams face when an intermediate suddenly creates bottlenecks. Sometimes, a research group needs short-notice scale-ups; other times, new project directions call for shifts in the composition or form of N-Carbobenzoxy-DL-Aspartic Acid. Drawing from years of batch manufacturing, our engineers stay ready to tweak parameters, optimize output, and communicate transparently about realistic timeframes instead of taking orders and fading behind walls of bureaucracy.

    Early career chemists, grad students, and industry veterans alike know the pain when a key synthesis step stalls over a poorly documented impurity or a slow shipment leading to downtime. We keep direct communication channels open, often assigning the same process chemists who run batches to answer field questions. There’s no substitute for talking to the producer when troubleshooting, and we take that commitment seriously—moving information faster supports better science and more dependable timelines.

    Building Trust Through Fact-Based Improvements

    Every client project, whether pharmaceutical, biotech, or materials science, relies on consistent intermediates to build success. Long-term technical partnerships have shown us the benefits of not cutting corners or skipping batch analysis details—mishandled intermediates mean wasted money, time, and missed assay targets. Where a supply chain glitch taught us a lesson, we’ve invested in site improvements, not just apologies. Each lot tells a story, carrying not only lab value but a record of iterative improvement. Over years, we’ve tracked product returns, spot runs, and process headaches to design new QC controls that work in our plant. That knowledge now lives in every packed drum and every opened report file sent to a collaborator.

    Looking Forward—Meeting Evolving Technical Needs

    N-Carbobenzoxy-DL-Aspartic Acid isn’t just a staple; it’s a product that demonstrates how committed manufacturing brings practical value to real research. As peptide chemistry branches into new drug modalities, diagnostics, and material applications, the standards keep evolving. Our process teams regularly adapt syntheses, purification steps, and packaging protocols. Client needs drive adjustments, not just regulatory pressure or internal targets. From solvent swaps to pH control routines, from documentation support during audits to drop-in solutions for pilot lines, the end goal never wavers—get the client a product that works, without time-consuming guesswork.

    Our team remains rooted in the details. Through scale-up headaches, runaway reactions, or last-minute filings with regulatory reviewers, our perspective remains built on production floor experience instead of remote desk jobs. When clients source N-Carbobenzoxy-DL-Aspartic Acid from our factory, they engage a production team that understands why each variable matters—because we see its impact every day. Years of trusted supply and technical partnership have taught us that the measure of reliable chemical manufacturing lies in facts, transparency, and continuous improvement.