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O-Benzyl-D-Serine

    • Product Name O-Benzyl-D-Serine
    • Alias H-Ser(Bzl)-OH
    • Einecs 68577-44-4
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry sales7@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    505471

    Product Name O-Benzyl-D-Serine
    Cas Number 3062-91-7
    Molecular Formula C10H13NO3
    Molecular Weight 195.22 g/mol
    Appearance White to off-white solid
    Melting Point 95-99°C
    Purity ≥98%
    Optical Activity [α]20/D +16° (c=1, H2O)
    Solubility Slightly soluble in water, soluble in methanol and ethanol
    Boiling Point 378.9°C at 760 mmHg

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

    Packing & Storage
    Packing O-Benzyl-D-Serine, 5 grams: Supplied in a sealed amber glass bottle, labeled with product details, safety information, and batch number.
    Shipping O-Benzyl-D-Serine is shipped in a securely sealed container to prevent contamination and ensure stability. The packaging complies with all relevant chemical transportation regulations. It is delivered via a reliable courier, with careful handling to maintain product integrity. Shipping includes a safety data sheet and tracking information for order monitoring.
    Storage O-Benzyl-D-Serine should be stored in a tightly sealed container, protected from light and moisture. Keep it in a cool, dry place, ideally at 2–8°C (refrigerator) or as specified by the manufacturer. Ensure proper ventilation in the storage area and avoid exposure to incompatible substances. Follow all applicable safety and handling guidelines for laboratory chemicals.
    Application of O-Benzyl-D-Serine

    Applications of O-Benzyl-D-Serine in Industrial Manufacturing

    O-Benzyl-D-Serine offers key chiral building block functionality for pharmaceutical, peptide, and fine chemical industries. As a direct manufacturer, we ensure rigorous quality control and traceable production methods for specialized downstream integrations. Below, we detail sector-specific applications, formulation roles, technical process stages, and quality compliance for industrial clients.

    1. Peptide Synthesis for Active Pharmaceutical Ingredient (API) Manufacturing

    Many commercial peptide-based drugs require non-standard amino acid derivatives for improved bioactivity or stability. O-Benzyl-D-Serine acts as a protected intermediate for solid-phase peptide synthesis (SPPS), offering orthogonal protection strategies in Fmoc/tBu schemes. Research-scale and commercial GMP facilities select this compound during assembling of synthetic peptides containing D-Serine residues. The benzyl group serves as a critical protecting group, removed selectively during downstream deprotection steps while retaining structural integrity of the peptide chain.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice Guidelines
    • USP & EP Peptide Monographs (as relevant to peptide APIs)
    • US FDA 21 CFR Part 211 (Finished Pharmaceuticals)
    • International Society for Pharmaceutical Engineering (ISPE) standards for excipient handling

    Typical usage ratio

    • Ranges from 1.0 to 1.3 equivalents per D-Ser residue inserted, depending on peptide length and risk of racemization
    • Adjusted based on coupling efficiency, scale, and purification method

    Downstream process integration

    • Integrated at the protected amino acid loading stage of solid-phase synthesis
    • Introduced prior to resin coupling for chain elongation
    • Used during orthogonal deprotection cycles in automated or manual SPPS
    • Cleaved after peptide assembly with catalytic hydrogenation or mild acidolysis

    Final product types

    • Synthetic peptide APIs for neurological disorders
    • Peptide hormone analogues with D-Serine residues
    • Diagnostic peptides for immunoassays
    • Reference standards for pharmacopeial compliance

    2. Chiral Intermediate in Non-Proteinogenic Amino Acid Synthesis

    O-Benzyl-D-Serine functions as a fundamental chiral source for the synthesis of specialty amino acids that serve pharmaceutical, agrochemical, and advanced material innovations. In industrial asymmetric synthesis, its enantiopure structure allows selective downstream transformation to various α- or β-substituted amino acids. Process engineers value the ease of benzyl group removal, minimizing racemization and maximizing chirality preservation throughout multi-step organic syntheses.

    Industry compliance standards

    • ISO 9001:2015 Quality Management Systems for chemical manufacturing
    • REACH Registration (European Chemicals Agency) for intermediates
    • Hazard Communication Standard (OSHA 29 CFR 1910.1200, as applicable)
    • GMP Part II for starting materials (for subsequent pharmaceutical uses)

    Typical usage ratio

    • Typically used from 1.05 to 1.2 equivalents relative to coupling or transformation partners
    • Excess adjusted based on substrate reactivity, batch vs. flow chemistry, and downstream purification

    Downstream process integration

    • First-stage alkylation, acylation or carbon-carbon coupling
    • Input for catalytic hydrogenation and deprotection protocols
    • Enzymatic or metal-catalyzed chiral resolution steps
    • Integration into continuous flow reactors or batch reactors for high-purity derivative production

    Final product types

    • Chiral auxiliaries for organic synthesis
    • Non-natural amino acids for pharmaceutical research
    • Building blocks for crop protection active ingredients
    • Raw materials for high-performance polymer additives

    3. Pharmaceutical Impurity Standards and Analytical Reference Material

    Contract research organizations and pharmaceutical QC laboratories utilize O-Benzyl-D-Serine to prepare certified reference materials (CRMs) and process impurity standards. Its defined chiral purity supports accurate impurity profiling during batch release and regulatory submissions. Controlled derivatization and finalized analytical form offer essential tools for ensuring GMP lot consistency and compliance with global regulatory filings.

    Industry compliance standards

    • USP General Chapter <1225> Validation of Compendial Procedures
    • European Pharmacopoeia Reference Standards (Ph. Eur.)
    • ICH Q3A/B for Impurities in New Drug Substances and Products
    • ISO/IEC 17025 for chemical testing laboratories

    Typical usage ratio

    • Used as neat compound or in stock solutions up to 2 mg/mL, depending on analytical instrumentation requirements
    • Spiking levels determined by target impurity limit of drug batch (usually <0.10% w/w)

    Downstream process integration

    • Dissolved or diluted in validated solvent systems for LC/MS and HPLC analyses
    • Blended into calibration curves for batch release and stability studies
    • Integrated into synthetic impurity libraries for process validation
    • Documented throughout reference standard creation under ISO/IEC traceability

    Final product types

    • Pharmaceutical CRM kits for compliance auditing
    • HPLC standards for D-Serine derivatives
    • GC/MS-spiking solutions for impurity analysis
    • Analytical control samples for stability testing

    4. Research-Grade Custom Peptide Manufacturing

    Universities and biotech facilities rely on O-Benzyl-D-Serine as a custom amino acid derivative for development of specialized peptides in neurobiology, structural biology, and molecular imaging. The ability to introduce D-Serine motifs at defined positions supports structure-activity investigations and receptor binding studies. The raw material's stability and compatibility with automated synthesizers underpin its selection for academic and industrial research orders demanding rapid peptide iteration.

    Industry compliance standards

    • ISO 13485:2016 for research/diagnostic reagents (where applicable)
    • GLP Principles for laboratory environments
    • Chemical Hygiene Plan compliance for educational labs (OSHA CFR 1910.1450)
    • Institutional review and chemical purchasing protocols

    Typical usage ratio

    • 1.0 to 1.2 equivalents per targeted D-Serine insertion site in peptide
    • Loading adjusted for resin scale, peptide length, and coupling efficiency as validated by microcleavage

    Downstream process integration

    • Fed into the Fmoc-deprotection sequence during fully automated or semi-automated peptide synthesis
    • Activated with coupling reagents at specific residue locations
    • Processed through hydrogenolysis or alternative deprotection post-assembly
    • QC analysis with analytical HPLC and mass spectrometry to confirm sequence and purity

    Final product types

    • Custom peptides for receptor binding studies
    • Peptide-based molecular probes
    • Tool compounds for neurotransmitter research
    • Small scale standards for preclinical research
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    Certification & Compliance
    More Introduction

    Introducing O-Benzyl-D-Serine: From Synthesis to Application

    What O-Benzyl-D-Serine Represents to Chemical Manufacturing

    O-Benzyl-D-Serine stands out as a reliable intermediate in both peptide synthesis and custom small-molecule workflows. Selecting quality intermediates always shapes the results down the line, be it for laboratories or scaled commercial campaigns. Our facility produces O-Benzyl-D-Serine with attention to stereochemical purity and batch consistency, using direct experience with amino acid derivatives and modern organic synthesis practices. Variations crop up among suppliers; ours has earned the trust of researchers and process chemists who value batch-to-batch reproducibility.

    We draw upon years in synthetic amino-acid production, watching the evolution of processes introducing protected serine derivatives. Chemists recognize racemization issues when handling chiral substrates, especially in multi-step synthesis. Our team invests in process optimization for each raw material, including careful assessment of impurities and moisture sensitivity. This focus minimizes unwanted side reactions and downstream troubleshooting, which would otherwise delay production or compromise synthetic targets.

    Specifications That Matter in the Real World

    Laboratories and scale-up facilities need more from O-Benzyl-D-Serine than just certificate numbers. We produce it as a free-flowing white solid, with model code OBS-DS-01. Our process centers on minimizing contamination, and we analyze for both chemical and enantiomeric purity by HPLC. Moisture content, controlled under 1.0%, ensures stability during storage or transport—essential for custom syntheses or repeat productions. Each batch shows retention of enantiopurity above 99%, with benzyl protection well characterized for removal when desired.

    Customers pressing for reliable yields in peptide workflows know chemical consistency saves cost and time. Our regular buyers mention fewer troubleshooting cycles after switching to our lots, as chromatography and deprotection steps behave more predictably. Peer-reviewed literature highlights how even slight racemization during O-benzyl introduction can undermine stereochemical integrity of the synthesis, especially when attached as a chiral building block in active pharmaceutical ingredients.

    What Sets O-Benzyl-D-Serine Apart From Similar Building Blocks

    No two batches of an amino acid derivative behave exactly alike if produced under varying conditions or sourced through multiple layers of suppliers. As the producer, we've identified key differences between authentic O-Benzyl-D-Serine and structurally similar analogs, particularly the D- and L-forms, or other benzylated serines made from impure starting materials. The D-isomer is specifically favored in certain non-natural peptide applications, as it lends altered metabolic stability and biologic profiles. End users seek the D-isomer to impart resistance to proteolytic enzymes or to direct desired backbone geometry.

    Some competitors market "D/L-Serine" mixtures or under-documented products, risking batch-to-batch unpredictability. We commit to strict chiral selectivity, proven by repeated QC runs and transparency in our certificates of analysis. In peptide chemistry, even minor contamination by the L-isomer complicates NMR analysis, separation, and downstream derivatization. Experience teaches us that early compromises in chiral purity lead to expensive setbacks at later stages.

    The benzyl group serves an important temporary role, offering robust protection for the hydroxyl function during coupling or elaboration sequences. Removal of this protection sometimes presents challenges; operators appreciate a product free from excessive benzyl byproducts or side-derivatives, which can otherwise undermine both ease of deprotection and final product purity. Our process leaves minimal trace byproducts, streamlining subsequent workup.

    Applications, Scalability, and the Role of Quality Assurance

    Researchers from pharmaceutical companies, academic centers, and contract manufacturers routinely request O-Benzyl-D-Serine not only for peptide synthesis, but for preparing new analogs in medicinal chemistry libraries. The material's structure lets chemists explore backbone modifications, append functional side chains, and create bioisosteres of natural serine residues. Demand for customization—fractional gram to multi-kilogram quantities—pushes us to maintain a robust in-house quality system.

    The job does not end with the clean-up of each synthesis run. Each lot undergoes stability checks under realistic warehouse conditions, reflecting feedback received over years from partners battling with shipping or local storage in high-humidity or variable-temperature environments. Peptide chemistry can be unforgiving when off-spec intermediates muddy the course; reliable material ensures research groups and production lines meet their milestones.

    We understand the economic and scientific stakes. In practice, pharmaceutical-scale peptide assembly or small-molecule platform construction can depend on these basic building blocks. Delays or sub-standard batches can disrupt trial timelines or force unnecessary repurification, incurring thousands in costs. An authentic relationship with customers—built by solving pain points and responding to shifting specifications—pays dividends over time.

    Lessons Learned From Direct Experience

    Early on, we faced setbacks with benzyl group introduction, especially with less-than-ideal protecting group transfer agents. Real-life production often exposes unexpected byproducts or batch inconsistencies, unnoticed behind numbers on a spec sheet. We stepped back to re-assess reagents, took a hard look at solvent quality control, and adjusted work-up methods for greater reliability. Honest feedback from clients led to new purification steps, and investment in fresh analytical tools—a necessity to detect isomeric impurities, moisture, or trace benzyl chloride.

    Recognizing how minor changes ripple through an entire pharma manufacturing program, we now keep redundant batches on hand and maintain a responsive re-order process. Clients have pointed out that while price matters, dependable timelines and open technical communication mean projects run on time, especially for peptide syntheses with custom protection strategies or unique downstream transformations.

    Comparing Supply Chain Strategies and Product Differentiation

    Strong direct manufacturing control allows easy adaptation when researchers adjust project parameters. This includes providing tailored lot sizes or adapting testing methods to new regulatory requirements. Unlike materials sourced through layers of dealers, our O-Benzyl-D-Serine comes straight from the reactor, supported by our own QA chemists. The direct relationship speeds up resolution of technical queries and supports compliance with institutional protocols in pharmaceutical, biotech, and research settings.

    Large-scale peptide procurement projects can run into delays when upstream intermediates show variable purity. Operations directors, especially those managing cGMP settings, flag materials for which supplier transparency is lacking. By keeping synthesis, purification, and final analysis within the same facility, we offer a clear line of accountability. This also supports quick troubleshooting: adjusting a protocol, adding a chiral resolution step, or problem-solving solubility for a given batch.

    Few things matter more in applied organic synthesis than trust in your reagents—O-Benzyl-D-Serine is no exception. Our product development follows the evolving needs of custom synthesis teams and process chemists. This ongoing dialogue helps us anticipate trends such as new protection group strategies or alternative serine modifications, keeping our offerings fresh and scientifically grounded.

    Impact on Researchers and Process Chemists

    Process chemists who rely on multi-step sequences often judge reagents not by spec sheets but by how they perform at the bench. Several customers have switched to our lots after extended struggles with inconsistent intermediates from unnamed sources, citing smoother chromatography and more predictable peptide coupling. The time saved in purification or troubleshooting translates into noticeable gains across pilot and scale-up runs.

    For university research projects, budgets must stretch across multiple synthetic trials, and a weak intermediate can squander months. Open lines of communication with our plant chemists have helped graduate students and postdocs design milder debenzylation or coupling strategies. By supporting new research with data-driven technical advice, we participate in the discovery process, sharing evidence-based modifications or optimizations as groups push the boundaries of peptide and small-molecule design.

    Ongoing Evolution and Response to User Feedback

    Chemical manufacturing never stands still: every research cycle introduces new methods, new problems, and new materials needing robust intermediates. We review customer feedback and the latest literature to adjust our own synthesis or purification practices. Quality management relies on these voices—each technical concern, timeline query, or batch trial offers an opportunity for process improvement and continuous learning.

    There are no shortcuts to reputation in fine chemicals. By responding quickly to inquiries or technical questions about O-Benzyl-D-Serine—be it analytical performance, new application formats, or regulatory documentation—we've extended the trust placed in our plant through active dialogue. The best solutions emerge not from generic responses, but from listening closely to the challenges and requirements of teams that trust us.

    Moving Forward: The Value of a Direct Manufacturer-Supplier Relationship

    Peptide and small-molecule synthesis projects depend on robust, well-characterized intermediates. Quality O-Benzyl-D-Serine remains central to a range of pharmaceutical and research pipelines. Many find that a reliable, traceable supply beats the uncertainty of indirect procurement channels. From early analytical development to repeated manufacturing campaigns, chemists value the reduced downtime and greater project clarity provided by a transparent, engaged producer.

    Building and maintaining consistency means regular investment in talent, facilities, and open technical exchange. We staff chemists who understand the stakes involved, not only in terms of batch purity or analytical statistics but also in meeting a timeline or achieving a regulatory filing milestone. This approach, rooted in direct experience and shared expertise, sets apart the everyday work of chemical manufacturers from more distanced intermediaries.

    Ongoing collaborations with process development groups and research chemists guide each improvement we introduce. As pharmaceutical targets increase in complexity, and as new protective-group strategies emerge, our commitment stands: maintain open communication, update manufacturing practices, and provide O-Benzyl-D-Serine with documented quality for every scale and usage profile.

    Summary of Challenges and Practical Solutions

    Producing high-purity O-Benzyl-D-Serine requires dedication at every stage—from raw materials through as many as five or six synthetic steps, depending on the chosen protocol and downstream objectives. Water control and handling of moisture-sensitive intermediates often top the list of challenges. We responded with new drying and packaging technology, and routine staff training for laboratory and plant operators.

    Analytical consistency is crucial too. Each batch faces rigorous HPLC and NMR analysis, as well as checks for potential cross-contamination with isomeric forms or prior synthesis runs. Where unexpected impurities show up, the team adapts workup protocols, reviews potential reagent cross-overs, and schedules extra purification cycles. By doing so, we support researchers aiming for synthetic targets that tolerate no surprises.

    The landscape of peptide synthesis and process chemistry will keep evolving, demanding flexibility and innovation in intermediate production. Our experience and focus on direct outcomes—combined with feedback from our user base—drive us to provide O-Benzyl-D-Serine that meets the current demands of research and industry at any scale.