Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
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Boc-N-Me-Tyr-Oh

    • Product Name Boc-N-Me-Tyr-Oh
    • Alias Boc-N-methyltyrosine
    • 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

    157700

    Product Name Boc-N-Me-Tyr-Oh
    Synonym N-Boc-N-methyl-L-tyrosine
    Molecular Formula C14H19NO5
    Cas Number 105931-53-7
    Purity Typically ≥98%
    Appearance White to off-white solid
    Solubility Soluble in DMSO, methanol
    Storage Temperature 2-8°C
    Protecting Group Boc (tert-Butyloxycarbonyl)
    Optical Activity Specific rotation available upon request
    Usage Peptide synthesis building block

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

    Packing & Storage
    Packing Boc-N-Me-Tyr-Oh is supplied in a sealed amber glass vial, 1 gram, labeled with CAS number, batch, and hazard information.
    Shipping **Shipping for Boc-N-Me-Tyr-Oh:** Boc-N-Me-Tyr-Oh is shipped in a securely sealed container to ensure stability and prevent contamination. The chemical is packaged according to standard regulations, typically at ambient temperature unless otherwise specified. Shipping documentation includes safety data and handling instructions to ensure safe transportation and compliance with chemical shipping guidelines.
    Storage **Boc-N-Me-Tyr-OH** should be stored in a cool, dry place, away from light and moisture, preferably at 2–8°C in a tightly sealed container. Protect it from incompatible substances such as strong oxidizers and acids. Keep the product under an inert atmosphere (e.g., argon or nitrogen) if possible, to prevent degradation and maintain its chemical stability.
    Application of Boc-N-Me-Tyr-Oh

    Applications of Boc-N-Me-Tyr-Oh in Industrial Manufacturing

    Boc-N-Me-Tyr-Oh serves as a critical intermediate in specialized synthetic sequences within life sciences and advanced chemical production. As the original manufacturer, we supply pharmaceutical, peptide, and biochemical processing industries, where this protected, N-methylated amino acid significantly impacts purity, yield, and product consistency in complex formulations. Below, we detail key downstream application scenarios grounded in actual manufacturing practices, highlighting regulatory requirements, formulation ratios, process points, and end-product categories achieved by industry-leading clients.

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

    Leading peptide therapeutics manufacturers rely on Boc-N-Me-Tyr-Oh as a precursor for constructing methylated tyrosine segments within oligopeptides. Its use in Boc-based solid-phase and solution-phase synthesis provides controlled protection and reactivity, enabling fine-tuned assembly of target molecules featuring N-methylated residues. These modifications are essential for designing next-generation peptide APIs with enhanced metabolic stability or altered pharmacokinetics, with manufacturers adhering to well-defined procedures to ensure batch-to-batch reproducibility and regulatory compliance.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • EU Guideline for GMP for Medicinal Products (EudraLex - Volume 4)
    • United States Pharmacopeia (USP) standards
    • EDQM Certificate of Suitability (CEP) requirements, where applicable

    Typical usage ratio

    • 0.5–1.5 molar equivalents per N-methyl tyrosine position in targeted peptide sequence; optimized based on peptide chain length and synthesis cycle protocol.

    Downstream process integration

    • Incorporation during chain elongation steps on a solid-phase resin using Boc deprotection and coupling cycles; precise addition post-resin loading and Fmoc removal, ensuring selective methylation at designated sites.

    Final product types

    • Injectable peptide drugs
    • Oral peptide therapeutics
    • Peptide-based diagnostic reagents
    • Chemically modified lead compounds for clinical trials

    2. Production of Modified Peptide Reference Standards

    Peptide reference material suppliers utilize Boc-N-Me-Tyr-Oh for the synthesis of methylated-tyrosine-containing peptides, which serve as analytical standards for pharmaceutical quality control and regulatory filings. Its high purity and distinct reactivity facilitate the preparation of specialty calibration standards used in both qualitative and quantitative method validation, contributing to analytical accuracy across global regulatory markets.

    Industry compliance standards

    • ISO/IEC 17025 Accreditation for testing and calibration laboratories
    • Pharmacopoeial requirements (USP, EP, JP for reference standards)
    • FDA and EMA guidelines for reference standards qualification
    • ISO 17034 for reference material producers

    Typical usage ratio

    • Precisely 1 molar equivalent per methylated tyrosine site in target standard peptide; formulation scale adjusted according to production batch size (typically 0.1–5 g lots).

    Downstream process integration

    • Engagement in solution-phase or automated peptide synthesizer cycles at the peptide assembly step; followed by purification (RP-HPLC) and extensive batch qualification with characterization as per reference material protocols.

    Final product types

    • Certified peptide reference standards
    • Internal calibration substances for pharmaceutical QC labs
    • Reference peptides for bioanalytical method validation
    • Chemical controls for GMP release and stability testing

    3. Synthesis of Peptide-based Drug Delivery Carriers

    Advanced formulation groups in pharmaceutical technology use Boc-N-Me-Tyr-Oh for fabricating peptide-based carrier molecules. N-methylation offered by this building block improves resistance to enzymatic degradation and modulates solubility, essential characteristics for carrier peptides incorporated into proprietary drug delivery platforms. Manufacturers emphasize validated integration and tight process controls to secure predictable functional performance in the final carrier material.

    Industry compliance standards

    • Current Good Manufacturing Practice (cGMP) as per 21 CFR Parts 210-211
    • Quality Assurance Guidelines for Excipient Manufacturers (IPEC-PQG)
    • ICH Q6A Specifications for New Drug Substances and Products

    Typical usage ratio

    • 0.8–1.2 equivalents per carrier peptide sequence position; incorporated based on in vitro/in vivo performance data and delivery platform design constraints.

    Downstream process integration

    • Integration at the chain extension stage of solid-phase synthesis; typically after protecting group removal, with subsequent cleavage, purification, and functional characterization of carrier conjugates.

    Final product types

    • Peptide-based nanocarriers for targeted drug delivery
    • Methylated peptide excipients for injectable formulations
    • Self-assembling peptide hydrogels for sustained release systems

    4. Assembly of Peptidomimetics & Small Molecule Inhibitors

    Medicinal chemistry and preclinical research teams employ Boc-N-Me-Tyr-Oh to prepare peptidomimetic scaffolds and N-methyl-tyrosine derivatives as building blocks for small molecule inhibitors. These applications require stringent control over stereochemistry and purity due to the impact of the N-methylation on bioactivity and inhibitor specificity, with each project maintaining traceability and documentation suitable for regulatory submission packages.

    Industry compliance standards

    • GLP (Good Laboratory Practice) for preclinical substance synthesis
    • ICH M7 guideline for assessment and control of DNA reactive impurities
    • Internal Quality Management Systems (ISO 9001:2015)

    Typical usage ratio

    • 1 molar equivalent per synthetic step involving N-methyl insertion; the ratio adjusted according to whether a mono- or di-substituted derivative is targeted.

    Downstream process integration

    • Entry into chemical synthesis at the intermediate assembly or core scaffold construction stage, proceeding through solution-phase coupling and post-synthetic modification for inhibitor libraries or peptidomimetic variants.

    Final product types

    • Peptidomimetic API candidates for oncology and CNS indications
    • N-methylated small molecule inhibitor leads
    • Specialty screening compounds for drug discovery pipelines

    5. Custom Peptide Manufacturing for Biotechnological Assays

    Contract research organizations and biotechnology assay kit developers require Boc-N-Me-Tyr-Oh in the custom synthesis of labeled and sequence-defined peptides, which function as detection reagents or ligands in molecular assays. Adding a methyl group via this protected amino acid alters assay performance and signal profiles, with precise formulation and traceable integration supporting compliance with international supply standards for bioreagents.

    Industry compliance standards

    • ISO 13485 Quality Management Systems for medical devices (where peptides are used in diagnostics)
    • OECD Principles of Good Laboratory Practice (GLP)
    • Appropriate local biotech reagent regulations

    Typical usage ratio

    • 0.8–1.0 molar equivalents per labeled/functionalized position; determined by probe design and sensitivity requirements of the downstream assay.

    Downstream process integration

    • Deployment during sequence-specific peptide assembly; direct coupling on resin or via solution-phase protocol, followed by purification and analytical batch release.

    Final product types

    • Custom synthetic peptides for enzyme or receptor assays
    • Labeled peptide bioreagents for immunoassays
    • Biosensor calibration standards
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    Certification & Compliance
    More Introduction

    Boc-N-Me-Tyr-Oh: Quality from the Source

    Decades of Peptide Manufacturing Experience

    We have tightened our methods as peptide chemists over many years of small-batch production. Our work with Fmoc, Boc, and other protected amino acids began on the lab bench, weighed by hand, pure by necessity. Boc-N-Me-Tyr-Oh joined our catalog after years of demand from research groups who wanted reliability, lot-to-lot tightness, and a true understanding of what they were getting—not anonymous bulk powder. Our batch logs and retention samples prove that careful manufacture is the difference between success and repeated syntheses.

    The Difference Real Control Delivers

    Any project needing Boc-N-Me-Tyr-Oh hinges on quality. A small variation at the N-methyl or tert-butyloxycarbonyl (Boc) step, and you can lose yields across your route. Our process keeps full control over each deprotection, methylation, and isolation. Experience on the shop floor shows that even minor impurities or improper moisture pickup raise headaches downstream. Our technical team checks chiral integrity and analytic specs at every step, not just at the finish.

    Direct handling of raw materials makes a fundamental difference. We choose our tyramine, methylating agents, and protectants ourselves, sourced from vetted suppliers that meet our scrutiny. At each junction, from the initial methylation of the tyrosine residue to careful Boc protection, we verify integrity—HPLC, mass spec, and NMR results drive our decision-making. Other suppliers might treat this as a commodity, but we treat it as a specialty molecule, fit for synthesis professionals who notice the details.

    Trusted Model and Proven Specifications

    Our active lot of Boc-N-Me-Tyr-Oh has earned a reputation with academic and pharmaceutical teams who require consistency and reliable documentation. Model numbers tell only part of the story—our in-process checks and crust formation controls serve as testimony that no shortcut goes unchallenged. Water content controls prevent premature hydrolysis during storage, which our team monitors using Karl Fischer titration. Chromatographic purity stands above market average. By making each batch according to strict process control, and preparing grams to multi-kilo scale in continuous apparatus, we prevent trace contaminant development.

    You won’t find mixed-solvate forms, inconsistent powder color, or off-odors with our batches. Our MSDS, COA, and shipment logs accompany each lot. If your project requires analytical backup—optical rotation, elemental analysis, or impurity tracking—we share that data, not just a general figure on a spec sheet. We publish melting point and spectral data for every batch, not just the parent molecule. Many research teams appreciate being able to cross-check these findings against their own instrument results.

    Boc-N-Me-Tyr-Oh in Synthesis Applications

    Protected amino acids drive peptide chemistry and SAR studies. Boc-N-Me-Tyr-Oh supports researchers in peptide bond formation, combinatorial library construction, and new scaffold design. Its N-methyl modification blocks N-site reactivity, shielding from side reactions and opening access to more stable conformers. In our hands, the compound works smoothly with DCC or HATU activation, pairing reliably with both Boc and Fmoc-protected synthons. The product reduces epimerization and boosts success rates for challenging couplings involving N-methyl groups—a crucial upgrade for macrocycle and peptidomimetic synthesis.

    Researchers and process chemists notice our extra work, especially in multi-step sequences. Peptide assembly projects benefit when their building blocks perform the same way, every time. Our acid-stable Boc group allows for robust downstream chemistry and deprotection under classic protocols, with no surprise byproducts. The compound dissolves cleanly in DMF, DCM, and other common peptide solvents. We fine-tune our crystallization to give free-flowing, non-hygroscopic powder—not fused chunks or sticky solids. Each batch passes heavy metal screens, with levels below stringent industry limits, and we provide certificates verifying this fact.

    Standing Apart from Bulk and Third-Party Products

    Chemists who use standard catalog suppliers know the pain of variability. Boc-N-Me-Tyr-Oh purchased from trading houses or brokers often shows unpredictable impurity profiles—because the manufacturer stands many links away. Our customers come directly to us, asking to trace the supply chain or run deeper impurity scans. Few others can provide the production and purification details with the rigor and openness we do. The difference stems from direct responsibility: synthesis, purification, QC, and shipment all happen under our roof. No uncertainty, no finger-pointing, no hiding behind repackaged drums.

    We also offer batch samples and impurity standards, supporting research that dives deeper than just building peptides. Process development groups have come to rely on us for pilot-scale and scale-up advice. We’ve collaborated on solvent swaps, new crystallizations, or alternate drying, giving real-world suggestions grown from our factory experience. Our technical staff answers practical questions: What’s the best solvent to remove residual base? How long will material remain stable on the bench or under nitrogen? At what scale do polymorphs or morphologies shift? You won’t find these answers from a trading firm or online reseller.

    Challenges in Manufacture and Our Solutions

    Producing N-methyl analogs like Boc-N-Me-Tyr-Oh brings real hurdles. The methylation must stop at the N-position; overalkylation leads to undesired species. Temperature, time, and base concentration decide a good or bad batch. Our chemists tweaked every variable, running countless test reactions until we hit tight control of mono-methylation. Purification follows, and separating Boc-protected, N-methylated from overreacted byproducts means work. Instead of accepting 98% as ‘good enough’, we run secondary purification or develop tailored crystallization if batch analytics need improvement.

    After methylation, Boc protection walks its own line. Too much base or heat, and the product degrades before you can quench the reaction. If you cut the time short, incomplete capping leaves free amine—a hidden troublemaker in later steps. Over years, we learned to minimize exposure to air and water, especially on warm summer days when humidity spikes. Using in-line analytical tools, we detect incomplete protection before full scale-up, saving waste and frustration. Only practice and failure gave us the protocols we use today.

    Storage presents another real issue. Boc-protected, N-methylated tyrosine can absorb moisture, losing form and risking hydrolysis. We vacuum-seal every batch with desiccant, then confirm stability through accelerated aging and routine checks. Some users store our product at -20°C and report stability for two years or more. At room temperature in dry conditions, shelf-life remains strong, matching or exceeding industry standards. Should you encounter clumping, a quick manual grind (in a dry box) restores flow; we avoid additives and flow agents that cause unexpected reactivity or extra peaks in your chromatogram.

    Support Beyond the Bottle

    Our team fields technical requests from chemists who encounter issues at the bench—not just regulatory or logistics staff. If you’re building peptides, generating new sequence analogues, or troubleshooting unexpected results, our scientific staff answer by email or phone, drawing from direct manufacturing experience. We routinely advise on coupling conditions, deprotection compatibilities, and long-term storage approaches, based on first-hand knowledge of this product, not a generic spec sheet or template reply.

    For groups tackling GMP or scale-up synthesis, our team corresponds directly with your QA or process team, supplying any required validation documentation. Our controlled facility and batch records support downstream regulatory filings, streamlining IND submissions or process validations. Our customer relationships stretch back decades, grounded in technical trust and honesty. If we see out-of-spec results, we hold back shipments—our reputation depends on your success, and we’ve grown our business by delivering reliability, not marketing jargon.

    Why Institutions and Industry Choose Us

    Academic labs, biotech startups, and large pharma QC teams all turn to our Boc-N-Me-Tyr-Oh because they trust our results and our willingness to answer real-world questions. They have seen the difference in their coupling yields, reduction in side-products, and steadiness in daily operations. Analytical chemists appreciate our open-data policy, providing spectra and impurity breakdowns beyond minimum requirements. Research scientists working on cyclic peptides and complex scaffolds count on our product not only for routine syntheses but also for innovation-stage projects, where failure isn’t an option.

    Industrial users, especially contract manufacturers, have worked with us for process improvements. Scaling up sometimes reveals new forms or behaviors not seen at the gram scale—our process chemists partner with your team to adjust solvent ratios, agitation, or workup, transferring hard-won lab wisdom to your production line. Open sharing matters: feedback from our clients has led to tangible advances in how we filter, dry, or handle Boc-N-Me-Tyr-Oh, and every upgrade is built into the next run, not held back as a ‘premium’ service.

    Continuous Improvement, Rooted in Real Practice

    Every kilo leaves our facility only after passing thorough QC, including repeat batch-to-batch analytics that exceed international standards. We run reference standards, cross-link impurity signatures, and monitor for unexpected degradation. As the product ages, we re-assess its performance and re-certify using current analytical practices, not archived COAs. Our technical archives include not only COAs, but also experimental details and observations—so chemists designing new procedures can avoid hidden traps or batch failures.

    Peptide chemistry demands trust in your starting materials. We respect our position in your synthesis and treat Boc-N-Me-Tyr-Oh as a foundation, not as an anonymous commodity. Our analytical commitment, batch-to-batch transparency, and daily presence on the production floor set us apart from traders and brokers. The depth of our expertise, supported by factual records and validated methods, drives our role as not only a supplier, but as a real manufacturing partner for your projects. We take our craft seriously—so every bottle we ship stands up to scrutiny, and helps build the science you care about.