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D-4-Pyridylalanine

    • Product Name D-4-Pyridylalanine
    • Alias 4-Pal
    • Einecs 256-786-0
    • 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

    348001

    Name D-4-Pyridylalanine
    Molecular Formula C8H10N2O2
    Molecular Weight 166.18 g/mol
    Cas Number 120193-80-2
    Appearance White to off-white powder
    Solubility Soluble in water
    Optical Rotation [α]D20 -37.0° (c=1, H2O)
    Structure Type Amino acid, beta-amino acid with pyridine ring
    Iupac Name (2R)-2-amino-3-(pyridin-4-yl)propanoic acid
    Storage Conditions Store at 2-8°C, protected from light
    Pka Amino: ~9.0; Carboxyl: ~2.2
    Synonyms D-(-)-4-Pyridylalanine; D-4-(4-Pyridyl)alanine

    As an accredited D-4-Pyridylalanine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing D-4-Pyridylalanine is supplied in a sealed amber glass vial, labeled, containing 1 gram, with safety and handling instructions.
    Shipping D-4-Pyridylalanine is shipped in tightly sealed containers, protected from moisture and light. It is packaged according to regulatory guidelines for chemicals, ensuring safe transportation. The package includes hazard labeling and documentation. Shipping is via certified carriers, with temperature and handling precautions as required to maintain product integrity and comply with safety standards.
    Storage D-4-Pyridylalanine should be stored in a tightly sealed container, protected from light and moisture. Keep it at a cool, dry place, ideally at 2–8°C (refrigerator temperature). Ensure storage is away from incompatible substances such as strong oxidizing agents. Properly label the container and follow all safety and regulatory guidelines to prevent contamination and accidental exposure.
    Application of D-4-Pyridylalanine

    Applications of D-4-Pyridylalanine in Industrial Manufacturing

    D-4-Pyridylalanine serves as a specialized pharmaceutical and life sciences intermediate, providing essential building blocks for synthesis within regulated manufacturing industries. Our direct production and QC oversight ensure consistent performance and compliance in rigorous downstream processes.

    1. Pharmaceutical Peptide Synthesis

    Pharmaceutical companies use D-4-Pyridylalanine in the manufacture of synthetic peptides, especially where modification of biological activity or targeting is required. It introduces pyridyl functional groups, enabling improved binding selectivity in receptor-targeted therapeutics. Its enantiomeric purity ensures compatibility with cGMP batch records and analytical traceability, while proper handling in solid-phase peptide synthesis (SPPS) adheres to validated compounding procedures. Monitoring during coupling and deprotection steps is required to maintain consistent yield and chiral integrity throughout scale-up.

    Industry compliance standards

    • ICH Q7A GMP for Active Pharmaceutical Ingredients
    • European Pharmacopoeia, Monograph 2034
    • USP <823> Peptides Used in the Manufacture of Drug Products
    • FDA 21 CFR Part 210/211

    Typical usage ratio

    • 5–15 mol% relative to total amino acids in target peptide sequence, adjusted according to peptide chain length and target biological properties.

    Downstream process integration

    • Direct Fmoc/t-Boc coupling stage in SPPS reactors, with in-process analytical monitoring for incorporation efficiency.
    • Intermediate purification steps after chain assembly to isolate protected peptides containing D-4-Pyridylalanine residues.
    • Final deprotection and purification via HPLC before formulation.

    Final product types

    • Peptide-based drug candidates
    • Targeted cancer therapeutics
    • Diagnostic imaging reagents
    • Research peptides for pharmacology screening

    2. Research Chemical Synthesis for Medicinal Chemistry

    Research laboratories employ D-4-Pyridylalanine as a core intermediate to develop novel small molecules and conjugation scaffolds for lead optimization. Its unique pyridyl group aids in structure-activity relationship studies, supporting development of receptor modulators and ligand libraries. Its high purity and defined chiral configuration facilitate advanced compound design under GLP-compliant research conditions, and users adapt concetrations based on in vitro and in vivo screening requirements.

    Industry compliance standards

    • OECD Principles on Good Laboratory Practice (GLP)
    • ISO 9001:2015 (Research Chemical Production)
    • REACH Registered (for non-clinical use in Europe)
    • Institutional chemical safety protocols (e.g., Sigma-Aldrich recommendations)

    Typical usage ratio

    • 0.01–10 mmol per synthesis batch, scaled according to project throughput and molecular design requirements.

    Downstream process integration

    • Front-end synthesis of pyridylalanine-containing chemical fragments.
    • Direct coupling to other amino acids or heterocycles.
    • Chemoselective derivatization of the pyridyl side chain for further transformation.

    Final product types

    • Medicinal chemistry candidates for screening
    • Fragment libraries for drug discovery
    • Biologically active conjugates
    • Novel scaffold molecules for SAR studies

    3. Diagnostic Reagent Manufacturing

    D-4-Pyridylalanine is integrated into synthetic antigens and diagnostic assay components, specifically in immunoassay reagent preparation. Manufacturers rely on its defined chirality and side chain functionality to construct antigen/antibody mimics with controlled activity profiles. Processes demand rigorous QC and traceability, including impurity profiling and stability testing under ISO-regulated cleanroom conditions. The compound’s performance during reagent formulation directly impacts the reliability and reproducibility of clinical and research diagnostic tools.

    Industry compliance standards

    • ISO 13485:2016 (Medical Device & IVD Manufacturing)
    • CLSI EP05-A3 for Reagent Consistency
    • CE Marking for In Vitro Diagnostic Devices (IVDD EU Regulation 2017/746)
    • US FDA QSR 21 CFR 820 for IVDs

    Typical usage ratio

    • Typically 0.1–2% of total antigen content in synthetic reagent mixtures, optimized through performance qualification testing.

    Downstream process integration

    • Early stage in custom polypeptide synthesis for diagnostic reagent formulation.
    • Blending with carrier proteins or polymers for immobilization.
    • Final lyophilization before kit assembly to maintain shelf stability.

    Final product types

    • Synthetic antigens for ELISA kits
    • Peptide standards for clinical chemistry
    • Customized assay controls
    • Multiplexed immunodiagnostic panels

    4. Advanced Materials Synthesis

    Material and polymer manufacturers utilize D-4-Pyridylalanine as a monomeric unit or functional additive to impart specific binding or electronic properties to specialty polymers and resins. The pyridyl group enhances complexation and chelation capabilities in polymer matrices, commonly targeting advanced coating or separation applications. Key factors in production include proper ratio blending by extrusion or solvent casting, and adherence to sector-specific regulatory and QC specifications to ensure functionalization levels and performance consistency.

    Industry compliance standards

    • ISO 9001:2015 (Quality Management in Materials Manufacturing)
    • ISO 14001:2015 (Environmental Management Systems)
    • REACH Compliance for Functional Monomers
    • EN 71-5 for Chemicals Used in Industrial Polymers (where relevant)

    Typical usage ratio

    • 0.5–5% by weight in polymerization mixtures, tailored per desired functional density and application requirements.

    Downstream process integration

    • Copolymerization in resin formulation reactors.
    • Post-polymerization modification during finishing stages.
    • Blending into masterbatches for later molding or extrusion operations.

    Final product types

    • Pyridyl-functionalized resins for chromatographic media
    • Specialty polymer coatings for electronics
    • Functionalized separation membranes
    • Custom adsorbents for life sciences
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    Certification & Compliance
    More Introduction

    D-4-Pyridylalanine: Setting A Benchmark in Specialty Amino Acids

    Real-World Experience Behind Every Batch

    Manufacturing D-4-Pyridylalanine brings a daily intersection of chemistry, precision, and dedication. Chemists stand over reactors, monitoring temperatures and stirring rates while planning each phase for optimal yield and purity. That hands-on involvement at every stage translates directly to consistent quality. D-4-Pyridylalanine doesn't arrive from an anonymous supply chain. Chemists know exactly how it’s made and every variable under careful control. That control starts with hand-selected raw materials and continues with validated processing steps.

    Experience in the plant taught some tough lessons over the years. Purification processes had to be reinvented to avoid unwanted racemization or the introduction of trace impurities. Staff developed a chromatography regime tailored just for this compound, troubleshooting until the finished powder offered sharp, reliable peaks on HPLC with no side-products lurking in the shadows. Over time, practical experience guided tweaks to the crystallization rates, ensuring that every batch meets stringent optical rotation values and matches spectral data down to fine details.

    Handling the day-to-day realities of chemical synthesis brings a set of skills that no distributor or trader can ever match. The controls, the in-process checks, even the troubleshooting when a reaction takes an unexpected turn—all of these shine through in the end product. Labs seeking consistent D-4-Pyridylalanine rely on this experience and enjoy the peace of mind that comes with years of real hands-on manufacturing.

    Specifications Backed By Process Integrity

    The journey to a pure, stable, and precisely defined D-4-Pyridylalanine powder has never been a shortcut. Over time, the team refined every control parameter to ensure rigorous limits on moisture, unwanted optical isomers, and organoleptic properties. Routine use of NMR, HPLC, and mass spectrometry serves as a daily check, not a vague promise. The result is a product ready for peptide synthesis, pharmaceutical research, or advanced material discovery. Purity often exceeds 99%, and each lot offers reliable analytical data showing tight control over both chemical composition and physical form.

    Particle size is not left to chance. Custom milling ensures uniform texture, making each gram easy to weigh and dissolve. Extended stability studies in-house have proven that D-4-Pyridylalanine maintains its integrity under ambient and refrigerated storage, so researchers can trust both short- and long-term projects to the same supply.

    Where D-4-Pyridylalanine Fits: Putting Theory to Work

    Unlike the catalog offerings of basic amino acids, D-4-Pyridylalanine finds its home in specialty research. Its unique structure—melding the side chain of pyridine with alanine’s reliable backbone—unlocks paths not open to conventional materials. This compound turns up again and again as a preferred choice in peptide design and medicinal chemistry. Pharmaceutical developers reach for it when building molecules that need flexible hydrogen bonding or enhanced binding affinity. No generic substitute delivers the same promise of functional diversity and selectivity.

    Chemical engineers have pushed D-4-Pyridylalanine into exploratory synthesis where standard amino acids stall. The nitrogenous ring in the para position introduces basicity and nucleophilicity, giving chemists a handle for further derivatization. This makes the compound valuable beyond pharmaceuticals—novel catalysts and sensor development have both relied on this foundation.

    Academic groups reporting new peptide frameworks frequently demand a level of consistency from their materials. Reliable data depends on reliable starting materials. The ability to answer questions immediately about source, processing, and validation eliminates headaches during publication or regulatory review. Experience—and a few battle scars—demonstrate that being able to prove traceability from raw material to finished batch cuts delays dramatically.

    Manufacturing Differences That Matter

    Standing in the production area, walking the same catwalks as the staff, reveals what sets this facility apart. From solvent selection down to temperature ramping, nothing in D-4-Pyridylalanine manufacture happens by rote. The plant never settled for “good enough.” Solvent recycling happens under controlled atmospheres, minimizing contaminants, and reactor maintenance follows a strict calendar to prevent metal leaching.

    Spectroscopists in the lab developed a fingerprinting process, using both NMR and MS, that goes beyond the broad minimums outlined in literature. This provides tighter control of purity, often revealing subtle impurities that remain invisible in standard protocols. Feedback loops between the analytics team and process engineers shaped ongoing tweaks, capturing lessons from challenging batches. Those lessons turn into updated SOPs and routine training, ensuring both seasoned operators and new hires share the same knowledge base.

    Routine isn’t a word heard often here. Adapting to customer feedback led to alternative sizing, on-demand packing, and batch documentation just as detailed as any clinical reference file. Some clients need special handling for controlled environments or unique packaging for air-sensitive peptide synthesis. This facility delivers, backed by years watching these needs evolve first-hand.

    Facing Challenges, Finding Solutions

    Any manufacturer knows the unpredictable side of specialty chemistry. Sometimes a reaction behaves differently with a new lot of starting material. Other times, a global shortage puts a raw material on hold, or a new impurity profile pops up in analytics. A hands-on team has the tools to face these issues directly. Open communication with trusted raw material vendors reduces delays. Redundant analytical equipment avoids downtime if a spectrometer fails mid-batch. Direct relationships with logistics partners help prevent supply shocks when international regulations shift.

    Scaling up introduces another dimension. Laboratory successes do not always map smoothly to commercial reactors. Through extensive pilot runs and skilled process transfer, the plant overcame foaming, mixing, and crystallization challenges that once seemed insurmountable. Lessons from the scale-up went into a robust training program so production teams can adapt on the fly. Looking at the current operation, the smooth, consistent runs reflect years of creative troubleshooting rather than a single lucky breakthrough.

    Supporting Research and Innovation

    The constant pressure to innovate pushed this company far beyond simply meeting technical specifications. As new markets demand D-4-Pyridylalanine with even greater levels of purity or specialized particle profiles, staff adapt quickly. Direct feedback from research customers guides the choice of reagent grade, storage conditions, and packaging design. This means the product evolves as science itself advances, rather than lagging behind in a static catalog.

    Peptide chemists prefer reliable starting materials, so the company partners with academic and pharma groups looking to develop new analogues. When projects call for isotopically labelled materials or custom-protected derivatives, the plant’s synthetic flexibility makes a difference. Whether a researcher needs five grams or five hundred, the team can fine-tune batch size and reporting to match the specific research stage. Regulatory documentation, including traceable batch records and raw data, supports even the most demanding applications.

    Differentiation from Commodity Amino Acids

    Any trained eye spots the difference between commodity amino acids and a specialty product like D-4-Pyridylalanine. Common amino acids flow through enormous plants, optimized for bulk output. Automation dominates. D-4-Pyridylalanine starts and finishes on a more personal scale, where process engineers adapt to week-by-week variations. The care put into each step leaves a visible fingerprint in both appearance and analytical results.

    For commodity suppliers, customer support begins and ends with a pick-list. Here, support includes real-time answers about batch history, analytical support for unexpected reactivity, and clear suggestions for storage or handling. The research and development teams here know every local regulatory regulation tied to specialty chemicals, having navigated registration, reporting, and import protocols for years. That makes integration with new partners direct and efficient, without the red tape found in less experienced hands.

    Full transparency characterizes the operation. Each lot has a record not just of the batch, but of every input and environmental condition. This means scientists working downstream can trace anomalies in their projects to their source, avoiding frustrating troubleshooting cycles. Investors and partners often demand this level of disclosure. Real-world experience and traceability mean the facility does not just meet standards, it builds trust batch by batch.

    Applications Making a Difference

    The adoption of D-4-Pyridylalanine has changed the landscape for many industries. Not long ago, peptide chemists managed without it, working around its absence and facing limitations in scaffold design or binding profiles. As this compound became available in reliable form and volume, pharmaceutical pipelines started to feature modified peptides with enhanced solubility or bespoke bioactivity. Materials scientists borrowed from this playbook, embedding D-4-Pyridylalanine into smart hydrogels or catalytic frameworks. Each application reflects back on the manufacturing floor, reminding everyone that the product’s impact extends well beyond the plant gates.

    Collaboration with synthetic biology teams led to custom orders, pushing the facility to optimize microbial fermentation for chiral precursors. Universities shared requests for specific protection group patterns, prompting in-house labs to further refine protection-deprotection sequences. These advances ensured that research continues to expand, pushing the envelope on what D-4-Pyridylalanine can achieve.

    Quality Control Rooted in Everyday Practice

    Quality assurance is not a matter of procedure alone. Line workers run regular in-process tests, stopping the line at even minor discrepancies. In-house trainers update SOPs as analytical technology advances, creating a feedback loop between R&D and plant staff. Regular audits and self-imposed spot checks uncover issues before shipments ever leave the warehouse. This commitment means the same standards reach each package, from the largest bulk shipment to single research bottles.

    No lot leaves the facility without complete transparency about its specifications, history, and recommended storage. While labs everywhere claim quality, few can point to the same depth of traceable documentation as the team here. This got built one batch at a time, with nothing left to chance. Each report includes real-world Certificates of Analysis, not generic summaries.

    Experience shows that even the cleanest batch can encounter issues if handled improperly. The company supports customers in best practices for storage and use, sharing tips gathered from years of working alongside research partners. When questions arise—whether about solubility in complex media or potential interference from packing residues—the company responds based on direct operational knowledge.

    Supporting Data Meets Real Challenges

    Customers expect more than numbers—they need a partner ready for unexpected challenges and creative needs. Whether it’s rapid turnaround for a crucial preclinical milestone or support for a rare derivatization, responsiveness matters. Clients often cite the facility’s ability to adapt, whether sourcing alternative pack formats for hazardous shipping or delivering expedited analyses to uncover a reaction anomaly.

    Staying close to the science allows continuous improvements. When a research partner highlights a new impurity issue, analytical teams review not just finished products but upstream processes, solvent quality, and even warehouse environments. Minor adjustments, such as new filtration methods or adjusted storage protocols, make major impacts on the consistency and performance researchers count on.

    Environmental and Regulatory Considerations

    Real commitment to excellence includes attention to sustainability and regulation. The technical team invested in waste reduction, implementing closed-loop solvent recovery and reusing wash water when possible. Every step receives regular review to stay compliant with evolving environmental standards. The same attention paid to purity and traceability applies to emissions and byproducts. The plant’s experience working with regulators means each new project or expansion occurs with complete documentation, supporting safety and environmental stewardship along with chemical quality.

    Collaborating on compliance efforts with customers often streamlines their own regulatory submissions. Detailed manufacturing records, along with established product stability and handling data, help customers navigate complex approval processes around the globe. The facility staff keeps up with global standards, ensuring every lot of D-4-Pyridylalanine matches or exceeds both local and international quality benchmarks.

    Continuous Improvement Pays Off

    Nothing about specialty chemical manufacturing stands still. Customer requirements, analytical methods, and market needs all change with time. The company’s approach rests on staying involved in the wider research community, attending workshops, contributing to whitepapers, and exchanging ideas with partners across industry and academia. New advances in green chemistry, alternative synthesis routes, and real-time analytics flow directly into the production process. The result: a living operation, always ready to improve and never satisfied with past achievements.

    Customers—ranging from emerging startups to global pharmaceutical outfits—benefit as much from this mindset as they do from the product itself. The operation’s flexibility, depth of expertise, and record of transparency mean each new project arrives in the hands of people who understand what is at stake. Whether producing a kilogram for a clinical trial or a few milligrams for an exploratory screen, the same principles apply.

    Versatility Built On Experience

    D-4-Pyridylalanine exists at the intersection of science and practical know-how. Chemists developed techniques for controlling ring substitution, maintaining optical integrity, and preventing degradation even during transport. Over the years, the plant learned which storage temperatures and sealing methods matter for maximum shelf life. These aren’t abstract principles—they were worked out in real time through collaboration with end-users and careful observation of what worked, what didn’t, and why. That continuing improvement benefits every customer, regardless of the size or scope of the order.

    Whether for synthetic peptides targeting elusive biological pathways or as a precursor in novel materials science projects, researchers count on dependable supply, clear documentation, and honest answers from people who know every step of the process.

    Conclusion: The Human Element in Chemical Manufacturing

    Across the world, researchers push scientific boundaries using D-4-Pyridylalanine—not because it’s a commodity, but because of the reliable, honest effort built into every gram. This dedication, grown from years of learning and constant adjustment, brings real peace of mind to every lab relying on these products. Quality, safety, and innovation do not materialize overnight. They grow from continual learning and a commitment to sharing both successes and hard-earned lessons.

    Each batch delivered reflects every member of the team: from the technical staff monitoring each reactor, to the analytical scientists validating every result, to the people refining cleaning processes, and those driving continuous improvement. When a customer opens a bottle of D-4-Pyridylalanine, they receive more than a chemical. They receive the accumulated trust, know-how, and problem-solving spirit of everyone behind the label—chemists committed to enabling discovery, one synthesis at a time.