Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing sales7@sinochem-nanjing.com 3389378665@qq.com
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Boc-D-Valine

    • Product Name Boc-D-Valine
    • Alias tert-Butoxycarbonyl-D-valine
    • Einecs 252-898-9
    • 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

    355979

    Productname Boc-D-Valine
    Casnumber 16652-95-4
    Molecularformula C10H19NO4
    Molecularweight 217.26
    Appearance White to off-white powder
    Purity ≥98%
    Meltingpoint 87-90°C
    Solubility Soluble in organic solvents (e.g., DMF, DMSO, methanol)
    Storagetemperature 2-8°C
    Smiles CC(C)[C@@H](NC(=O)OC(C)(C)C)C(=O)O
    Synonyms N-tert-Butoxycarbonyl-D-valine
    Iupacname (2R)-3-methyl-2-(2-methylpropan-2-ylcarbamoyl)butanoic acid
    Inchikey LCORJYURGCKZBN-QMMMGPOBSA-N

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

    Packing & Storage
    Packing Boc-D-Valine is supplied in a 25g amber glass bottle with a white screw cap, labeled with identification, hazard, and storage instructions.
    Shipping Boc-D-Valine is shipped in sealed, moisture-proof containers to ensure stability and prevent contamination. It is typically transported at ambient temperature unless otherwise specified, avoiding extreme heat or cold. All packaging is clearly labeled with hazard information, in compliance with local and international regulations for shipping chemicals.
    Storage Boc-D-Valine 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). Avoid exposure to excessive heat, humidity, and incompatible substances such as strong acids or oxidizers. Proper storage ensures the stability and purity of the compound for future use in chemical syntheses.
    Application of Boc-D-Valine

    Applications of Boc-D-Valine in Industrial Manufacturing

    Boc-D-Valine, produced in adherence to strict manufacturing protocols, serves as a critical intermediate for multiple industries that require advanced peptide synthesis. This section details how downstream manufacturers leverage our material in differentiated sectors, guided by industry-specific standards, process requirements, and end-use formulations.

    1. Peptide API Manufacturing for Pharmaceutical Intermediates

    Pharmaceutical companies utilize Boc-D-Valine predominantly for solid-phase and solution-phase peptide synthesis, focusing on chiral dipeptide and oligopeptide API intermediates used in new chemical entities (NCEs), generics, and advanced intermediates for oncology and metabolic therapies. Manufacturers integrate this raw material at the earliest fragment assembly stages, optimizing stereochemistry control and minimizing racemization throughout coupling and deprotection steps in stringent GMP production environments.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP, Ph. Eur., JP and ChP monograph requirements for peptide intermediates
    • 21 CFR Part 210/211 (FDA GMPs)
    • EDQM “Guideline on the Use of Peptides in Pharmaceuticals”

    Typical usage ratio

    • 0.8–1.2 molar equivalents per amino acid unit in peptide assembly; adjusted for chain length and target purity required by specific API synthesis protocols

    Downstream process integration

    • Integrated at the N-terminal capping stage for stepwise peptide elongation on solid support or in solution phase; followed by selective deprotection and purification before downstream conjugation or cyclization reactions

    Final product types

    • Peptide-based APIs (e.g., therapeutic oligopeptides, enzyme inhibitors, diagnostic probes)
    • Pharmaceutical-grade peptide intermediates for small molecule API construction

    2. Life Sciences Research Reagent Production

    Specialty reagent and fine chemical producers demand Boc-D-Valine for the synthesis of protected amino acids, labeling reagents, and chiral building blocks tailored for academic, industrial, and contract research markets. These downstream applications emphasize batch-to-batch reproducibility and stringent contaminant controls to support advanced biochemical assay development, proteomics, and drug discovery pipelines.

    Industry compliance standards

    • ISO 9001:2015 Quality Management Systems
    • REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals—EU)
    • OECD Guidelines for the Testing of Chemicals
    • Certificate of Analysis verification protocols for research-use-only reagents

    Typical usage ratio

    • Variable; typically 1.0–1.2 molar equivalents as a coupling partner, with adjustment for label stoichiometry and synthesis scale

    Downstream process integration

    • Inserted in protected amino acid coupling reactions; post-synthesis HPLC or LC-MS purification ensures ultra-high purity for research applications

    Final product types

    • Peptide libraries for screening
    • Isotopically labeled or fluorophore-tagged peptides
    • Protected amino acid stocks for custom synthesis services

    3. Diagnostic Peptide Segment Synthesis

    Diagnostic reagent manufacturers employ Boc-D-Valine as a protected residue in the assembly of antigenic peptide sequences used in immunoassay controls, quality controls for diagnostics devices, and as linker components for bioconjugate construction. Ultra-high purity and consistent stereochemistry are critical, impacting batch validity in regulated diagnostic kit manufacturing.

    Industry compliance standards

    • ISO 13485:2016 for Medical Devices Quality Management Systems
    • CE Marking under IVDD (98/79/EC) or IVDR (2017/746/EU) for diagnostic components
    • CLSI Approved Guidelines for Immunological Test Development
    • FDA 21 CFR 820 Quality System Regulation

    Typical usage ratio

    • Typically 1.0 molar equivalent per peptide segment; optimized case-by-case for antigen binding specificity and solubility requirements in final diagnostic peptides

    Downstream process integration

    • Included during stepwise solid-phase peptide synthesis prior to conjugation with reporter labels or carrier proteins; followed by purification and lyophilization

    Final product types

    • Peptide antigens for immunoassay QC
    • Diagnostic reference standards
    • Biotinylated or labeled peptides for ELISA/EIA systems

    4. Custom Peptide Contract Manufacturing

    Contract manufacturing organizations (CMOs) specializing in peptide synthesis utilize Boc-D-Valine for multi-step protected peptide assembly for biotherapeutics, veterinary APIs, and research-use custom orders. The material enters at the resin loading or elongation phase, where steric hindrance and optical purity directly affect synthesis efficiency and downstream scalability for large-lot production.

    Industry compliance standards

    • GMP guidelines for contract manufacturing (ICH Q7, EU GMP Part II)
    • Customer-specific cGMP or ISO 17025-accredited protocols
    • Synthetic peptide standardization per ISO 10993-18 for biocompatibility (where applicable)
    • Appropriate documentation for batch release traceability under global supply chain requirements

    Typical usage ratio

    • Utilized at 0.95–1.0 equivalents at each relevant elongation stage; adjusted to avoid side-product formation in long-chain and cyclic peptides for bulk scale

    Downstream process integration

    • Charged during resin charging or iterative chain extension routines in automated synthesizers; followed by cleavage, post-synthesis modifications, and freeze-drying

    Final product types

    • Bulk GMP peptide APIs
    • Veterinary peptide intermediates
    • Custom peptide fragments for CDMO clients

    5. Chiral Pharmaceutical Intermediate Synthesis

    Chemical process organizations manufacturing chiral intermediates for active pharmaceutical ingredient (API) pipelines apply Boc-D-Valine as a source of controlled D-isomer input for asymmetric synthesis schemes. Its introduction enables the development of side-chain specific core units in advanced small molecule therapeutic projects, supporting patent filings and regulatory filings by providing batch-consistent chirality sourcing.

    Industry compliance standards

    • FDA 21 CFR Part 314 (NDA/ANDA Pharmaceutical Registration)
    • EMA “Guideline on the Specification Limits for Residues of Metal Catalysts” applicable to asymmetric syntheses
    • ICH Q11: Development and Manufacture of Drug Substances
    • USP General Chapters for Chiral Purity Testing

    Typical usage ratio

    • Ranges from 0.5–1.3 molar equivalents depending on targeted step yield and asymmetric induction efficiency per specific synthetic route

    Downstream process integration

    • Incorporated during chiral pool synthesis or as feedstock for amide bond formation, followed by deprotection and coupling into key chiral intermediates; downstream crystallization or recrystallization ensures enantiomeric excess

    Final product types

    • Enantiomerically pure pharmaceutical intermediates
    • API precursor blocks for antineoplastic and antiviral agents
    • Advanced small molecule synthesis starting materials
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    Certification & Compliance
    More Introduction

    Boc-D-Valine: Quality That Shapes Peptide Synthesis

    In the world of chemistry, even subtle choices can change the outcome of a synthesis. As a manufacturer handling specialized protecting groups for peptide synthesis, we often work with clients whose research hinges on their starting materials. Over the years, Boc-D-Valine has become an essential part of our lineup—not just as a commodity but as a tool that directly affects the purity, repeatability, and success of a project. Our product follows the model Boc-D-Val-OH and consistently delivers top performance because every step in our process demands integrity, not shortcuts.

    What Boc-D-Valine Brings to Your Bench

    We manufacture Boc-D-Valine with a focus on its role as a building block in peptide synthesis. Chemists rely on the Boc group to protect the amino functionality during standard solid-phase peptide synthesis. They count on our Boc-D-Valine for its clean profile and dependable protection. High yields begin with clean input, and our material lets you see that. Typical specifications include a purity of 99% or higher by HPLC, low water content, tight particle size distribution, and well-controlled optical rotation. These aren’t just numbers to us—they are the culmination of careful production, filtration, and strict analytical checks. Researchers working on new peptide drugs, advanced biomaterials, or diagnostic reagents look for consistency. Our clients tell us that reliable Boc-D-Valine means fewer side products and less troubleshooting down the line. That saves both time and resources when scaling up synthesis from milligram to multi-kilo quantities.

    Behind Every Batch: Experience from Production

    Our shop floor doesn’t see much ceremony. Instead, it’s the hum of reactors, the constant calibration of pumps, and seasoned technicians who know how to read a purification column by its scent and temperature. Boc-D-Valine presents unique challenges because the steric hindrance of the Boc group can complicate coupling reactions—especially when moving to more complex sequences. Years ago, a younger process technician flagged a subtle discoloration in an intermediate fraction. That moment led to our adoption of extra in-process controls. We hold onto those details. Even one off-color lot, set aside before reaching the warehouse, demonstrates how critical vigilance is. Such vigilance defines our approach—every sample, every batch. We run thorough HPLC, GC, and chiral purity tests. We’re not looking for problems but to assure that what reaches you is the same in January as July.

    Real-World Impact in Synthesis

    Specialists value Boc-D-Valine most where it counts—at the reaction bench. As a D-enantiomer protected by Boc, it allows precise addition of D-valine residues, resisting racemization and maintaining stereochemical integrity during demanding coupling steps. Early in my career, a peptide chemist shared an insight: choosing a poorly made starting material often means weeks of work end in frustration, not publication. We embrace that reality. Boc-D-Valine is more than an entry on a procurement list; it’s a keystone for efficient, repeatable synthesis, especially in projects where every stereocenter must be perfectly assigned. Our people track feedback—from academic groups screening peptide libraries to pharmaceutical teams working on lead candidates—so every new lot reflects lessons already learned in real synthesis settings.

    Comparing Boc-D-Valine with Other Amino Acid Precursors

    Not every protected amino acid is the same, even if it shares a skeleton or label. Boc-D-Valine offers some tangible differences from products like Fmoc-D-Valine or Ac-D-Valine. In our experience, chemists opt for Boc-D-Valine mainly because it matches their deprotection strategies—especially TFA-based cleavage, which leaves other side chains intact. In situations where acid-sensitive moieties require protection, Boc groups let researchers fine-tune deprotection without compromising sensitive residues. We worked closely with a client developing a cyclic peptide library who found some Fmoc strategies too harsh, risking partial loss of cyclization efficiency. Boc-D-Valine delivered the right combination of stability during chain assembly and easy removal at the last step. Its performance in solution-phase and solid-phase synthesis has earned trust across drug discovery efforts, agrochemical research, and diagnostic peptide design.

    In terms of processability, Boc-protected amino acids generally display better handling in certain solvent systems compared to Fmoc counterparts. That translates to more robust scale-up, less reliance on exotic solvents, and lower unexpected loss at filtration or evaporation. Every lab has its methods, and one person’s best practice can be a speed bump for another. By getting feedback from major peptide houses, our team learned that switching to our Boc-D-Valine meant less batch-to-batch variability and fewer “mystery peaks” in final analytical runs. This is where technical experience, hard-gained wisdom, and hands-on feedback come together. We take these lessons forward, constantly refining our process to stay ahead of evolving researcher needs.

    Pursuing Consistency and Purity

    Boc-D-Valine does not thrive on theory alone. Consistency comes from small, daily disciplines on the production line: checking solvent purity, balancing batch scales, verifying temperatures, and inspecting crystallization. We monitor water activity because any residual moisture can spoil a reaction. Our production managers maintain laboratory books filled with practical wisdom: how slow cooling yields a purer crop, how tweaking antisolvent ratios sharpens particle size, or how minor environmental variations can shift the final product. Last winter, a cold snap pushed us to tweak drying cycles, saving a batch from subpar purity. Our clients notice these margins—higher purity translates into sharper, cleaner final peptides.

    Trace contaminants like unprotected D-valine, Boc anhydride residues, or racemized L-valine set back peptide yield and purity. Chiral HPLC checks and thorough plate harvests have become non-negotiable for each lot. These tests aren’t merely blocked out of habit; they grew out of practical necessity. It’s easy to forget how one unspotted impurity can ripple out across multiple syntheses, causing entire projects to stall. By double-checking at each stage, from raw material sourcing to finished product bottling, we ensure the researcher receives uncompromised Boc-D-Valine.

    Product Handling and Safety: Stories from the Floor

    Boc-D-Valine isn’t hazardous when treated with respect, but dust and fine particles require diligent housekeeping. Years of working with amino acid derivatives have taught our workers to keep hoods clear, containers tightly sealed, and step through even simple measurements with care. Minor spills get handled immediately, surfaces remain uncluttered, and post-batch cleaning is routine. Long-time team members pass on practical training to newcomers, sharing advice born out of lived experience rather than procedure manuals. We store Boc-D-Valine in moisture-tight vessels, in cool and dark rooms, since light or air can reduce storage life. Every container carries an explicit reminder—protect the material as you would your synthesis process.

    With chemical manufacturing, safety and documentation walk hand-in-hand. We invest in ongoing training and maintain documentation not to meet regulations but because it keeps our teams safe and upholds the trust researchers place in our materials. Only after a full round of internal review and quality chemical risk checks does a batch leave our facility. We handle every drum and bottle as though it travels to our own laboratory—because one day, it just might.

    Scaling Boc-D-Valine Production Responsibly

    Each step up in scale adds new challenges. Keeping quality consistent as batch quantity rises isn’t only about bigger reactors or faster filtration. The trick is to preserve the integrity of each small-batch method while adapting procedures to industrial runs. We redesigned some equipment to reduce dust generation, upgrading seals and fitting in-line filters to keep workplace air safe and product clean. In our experience, dialogue with researchers has driven major upgrades: better labeling, traceable reporting, and process improvements often emerge from real-world needs, not just in-house brainstorming. If a client flags a trace contaminant or solvent impurity, we don’t just troubleshoot the lot—we update SOPs, retrain staff, and keep searching for root causes until the lesson is banked for the next cycle. Our warehouse never forgets a lesson won through careful troubleshooting.

    Greener chemistry practices also guide our work. Boc-D-Valine is produced through sequences that create by-products, and we’ve invested in solvent recovery and reuse systems to cut waste and reduce our environmental burden. Our waste stream is carefully managed; we train operators to segregate and treat each type, reducing long-term risks. Applying process intensification techniques has yielded better yields and smaller environmental footprints. Sustainability isn’t a slogan—we measure our progress by actual waste reduction and efficiency metrics reviewed quarterly. Since switching to a multi-stage crystallization and recycling solvent cut, we’ve lowered our waste output and improved product quality—outcomes that matter both inside and outside the laboratory.

    Meeting the Demands of Cutting-Edge Research

    Life science and materials research don’t pause for supply chain hiccups. We’ve learned to keep sufficient inventory on hand to meet urgent requests. When a biotech startup calls on a Friday, asking for expedited delivery, we treat it with the same urgency as the largest pharmaceutical client. Our logistics team is agile and ready to pack Boc-D-Valine at all hours because research doesn’t follow business calendars. Direct relationships with raw material suppliers, deep in-country sourcing, and ongoing logistics training mean we avoid last-minute surprises that could hold up your next experiment.

    Preparing shipments for global customers presents real-world puzzles: climate, distance, and transit times all matter. We’ve invested in tested packaging—double-sealed, desiccant-lined, and robust enough to withstand months in storage or weeks in transit. Regular feedback from overseas clients points out bottlenecks or packaging weaknesses; each comment becomes reason to review our methods. We’re not immune to world events, but our goal is simple: Boc-D-Valine must arrive at your bench as pure as the day it left our plant.

    Supporting Every Step: From R&D to Scale-Up

    Boc-D-Valine has found a place at every stage of discovery, from modest academic projects to industrial drug development. Our interactions with universities, national labs, and private companies have given us a front-row seat to new techniques and demands. Early-phase research projects favor small volumes, high documentation, and clear certificates of analysis. Once a synthesis moves toward the kilo scale, questions shift to lot-to-lot variation, stability data, and cost-efficient batch sizes. By repeatedly consulting with process chemists, we keep refining our own workflow. That means flexible batch sizes, reliable lead times, and a willingness to tailor delivery formats. Some partners want customized bottle sizes or specific labeling for traceability. We meet these requests by adapting filling lines and training warehouse teams on clear labeling—no confusion, no ambiguous batch numbers. Over time, this precision shows up in better project outcomes and long-term trust.

    We believe quality and transparency still make a difference. If an academic lab notices a subtle impurity in Boc-D-Valine, we invite direct discussion to trace and fix the source. If a company needs detailed QC data to validate a process for regulatory review, we deliver full analytical workups from in-house and certified third-party labs. We pay attention to the small details—sometimes that’s the difference between a failed and a successful run at the pilot scale. By serving as a sounding board and technical resource, we become part of your team, not just a supplier on a spreadsheet.

    Technical Support: More Than Answers

    Chemists face unique challenges—tricky sequences, uncooperative side chains, unexpected results. Every year we receive questions about unusual solubilities, unexpected coupling rates, deprotection conditions, or storage. We answer not with generic advice, but from real cases our own staff has encountered. If a researcher needs to solve a coupling challenge specific to Boc-D-Valine, we draw on experience across a hundred synthesis campaigns, offering practical tips that short-circuit frustration and guide success. Our technical support staff maintains an open-door exchange with production teams, sharing findings that feed back into both process improvement and better customer guidance.

    Product information is only part of the story; reliable advice makes a difference. We keep detailed records of compatibility with a variety of coupling reagents, solvents, and resins. We catalog real-world troubleshooting steps that have worked in-house or for our partners—advice that saves valuable time at the bench. Ask a question and you’ll get a response informed by hands-on exposure to the same problems, not just a recitation from a data sheet. This collaborative approach helps turn product supply into a partnership that supports ongoing innovation.

    Anticipating Future Demands in Protected Amino Acid Chemistry

    New research fields continually shape the chemicals we produce. As more work shifts toward complex peptides, personalized therapeutics, or sustainable manufacturing, the performance demands for materials like Boc-D-Valine rise. We watch regulatory trends and advances in asymmetric synthesis closely, adapting our practices so that our product remains both compliant and “future-proof.” Researchers are moving toward longer, more complex chains, cyclized structures, and non-natural amino acids. Feedback from these advances sharpens our own expectations—demanding higher stereopurity, even lower metal content, and guarantees for non-detectable levels of certain trace impurities.

    We continually re-invest in analytical capability, from higher-sensitivity mass spectrometry to more advanced chiral chromatography, so that every lot leaves the plant with comprehensive, reliable certification. New demands sometimes require process modifications, and we’re ready to test and implement changes rather than force customers to adapt to us. Over the past decade, increased demand for non-animal origin and allergen-free products has also driven a shift in precursor sourcing and raw material qualification. Our supply chain teams work nonstop to document and trace every feedstock, reflected in both summary and detailed records for each lot. We stay ahead by listening to our clients and integrating new requirements as chemistry evolves.

    Looking Back, Moving Forward

    Boc-D-Valine sits at an intersection of chemistry and trust. After decades in this field, we know that materials can make or break a synthesis. The work that goes into one small bottle involves collective experience—production chemists, analytical specialists, QA managers, and even the most junior warehouse team member. The end goal stays clear: deliver Boc-D-Valine that works, every lot, every time, so our partners can focus on discovery instead of troubleshooting. As chemistry advances, our production and support keep pace, grounded by the lessons of everyday work. For every peptide, drug lead, or research breakthrough that depends on a reliable supply, we’re committed to maintaining quality that reflects real-world needs—not marketing slogans or spec sheet promises, but hands-on, experience-driven performance.