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3-Methylphenyl-D-Alanine

    • Product Name 3-Methylphenyl-D-Alanine
    • Alias meta-Tyr
    • Einecs 68209-04-1
    • 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

    973078

    Chemical Name 3-Methylphenyl-D-Alanine
    Cas Number 132029-31-9
    Molecular Formula C10H13NO2
    Molecular Weight 179.22
    Appearance White to off-white solid
    Purity Typically ≥ 98%
    Solubility Soluble in water, methanol
    Optical Activity D-isomer (specific rotation available on request)
    Melting Point 120-124 °C
    Storage Conditions Store at 2-8°C, protected from light and moisture
    Synonyms D-3-Methylphenylalanine; (R)-3-Methylphenylalanine
    Smiles CC1=CC=CC=C1C[C@H](NH2)C(=O)O

    As an accredited 3-Methylphenyl-D-Alanine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White plastic bottle labeled "3-Methylphenyl-D-Alanine, 100g, For laboratory use only, CAS: 1113-60-8, Store cool and dry."
    Shipping 3-Methylphenyl-D-Alanine is shipped in sealed, chemical-resistant containers to prevent contamination and moisture exposure. Packages comply with regulatory guidelines for safe handling and transport of laboratory chemicals. Proper labeling and documentation are included, and temperature-sensitive shipping is available upon request to preserve product integrity during transit.
    Storage **3-Methylphenyl-D-Alanine** should be stored in a tightly sealed container in a cool, dry, and well-ventilated area. Protect from moisture, direct sunlight, and sources of ignition. Store at temperatures between 2–8°C (refrigerated) to maintain stability. Keep away from incompatible substances such as strong oxidizing agents. Properly label the container and handle using appropriate personal protective equipment.
    Application of 3-Methylphenyl-D-Alanine

    Applications of 3-Methylphenyl-D-Alanine in Industrial Manufacturing

    As a dedicated manufacturer of 3-Methylphenyl-D-Alanine, we supply this specialty amino acid to advanced industrial sectors requiring precise chiral building blocks for downstream synthesis. Our product supports targeted synthesis in high-value applications, where batch consistency, purity, and process reliability are essential for commercial production and regulatory compliance.

    1. Chiral Intermediate in Pharmaceutical API Synthesis

    3-Methylphenyl-D-Alanine serves as a chiral starting material or building block in the synthesis of several non-peptidic APIs, particularly for active substances where enantioselective control impacts pharmacodynamics and intellectual property. Pharmaceutical manufacturers employ it in side-chain extension or cyclization strategies to construct complex molecular scaffolds adhering to tight regulatory guidelines. Selection of use-level depends on downstream synthetic route efficiency, with close monitoring for residual impurities imposed by approval agencies. Raw material portions are introduced at key asymmetric synthesis or enzymatic coupling stages, providing the D-configuration necessary for target molecule stereochemistry.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP/NF, Ph. Eur. monograph alignment (where applicable for intermediates)
    • FDA 21 CFR 211 (for cGMP synthesis of APIs)
    • EMA Guideline on Starting Materials and Intermediates

    Typical usage ratio

    • 0.3–1.5 molar equivalents per target API batch, adjusted based on step yield and stereoselectivity; process optimization may further modulate input to limit byproduct formation.

    Downstream process integration

    • Input as a key chiral precursor in asymmetric hydrogenation, enantioselective alkylation, or amidation steps under controlled environments, generally post-protection group installation and prior to final ring closures or chain elongation.

    Final product types

    • Chiral pharmaceutical intermediates for psychoactive agents, non-natural peptidomimetic drugs, and specialty antihypertensive agents.

    2. Peptide Synthesis for Diagnostic Reagents

    3-Methylphenyl-D-Alanine is selected by IVD and research tool manufacturers as a non-canonical D-amino acid residue in the design of synthetic peptides used in immunodiagnostic kits and substrate-specific assay reagents. Its inclusion modulates peptide binding properties and metabolic stability, especially where endogenous peptidase resistance enhances assay reliability in biological fluids. This raw material is charged into automated SPPS workflows to introduce structural variation at defined sequence positions crucial for pairing selectivity or signal differentiation; incorporation ratios depend on multiplex assay panel design.

    Industry compliance standards

    • ISO 13485: Medical Device Quality Management Systems (for IVD components)
    • ISO 9001:2015 for Research Use Only reagent production
    • CLSI guidelines for analytical reagent preparation
    • Relevant country-specific medical device directives (e.g., EU IVDR 2017/746)

    Typical usage ratio

    • 1–3 residues per peptide chain in synthetic sequences ranging from 8 to 30 amino acids; actual weight percentage typically 5–12% of the total peptide batch, optimized for functional assay performance.

    Downstream process integration

    • Loaded as Fmoc/D-protected derivative onto resin in Step 2 or Step 3 of SPPS cycle, followed by iterative chain elongation and subsequent cleavage from the solid support with concurrent deprotection.

    Final product types

    • Custom peptide substrates for enzyme activity assays, immunogen standards, ELISA control peptides, and epitope mapping reagents.

    3. Precursor for Agrochemical Chiral Additive Synthesis

    Several agrochemical producers utilize 3-Methylphenyl-D-Alanine as a precursor for manufacturing optically active additives that enhance the activity or selectivity of pesticide formulations. Applications center on producing chiral adjuvants or formulation boosters that improve active ingredient uptake and minimize environmental residues. The raw material is most commonly incorporated via acid chloride activation, followed by formation of amide or ester linkages under mild conditions. Selection of inclusion rate pivots on the required stereochemical purity in the final additive and on regulatory expectation for low residual impurities in agrochemical blends.

    Industry compliance standards

    • OECD Guidelines for the Testing of Chemicals (regarding impurity profiles)
    • ISO 9001:2015 quality management systems (speciality agrochemical additives)
    • FAO/WHO Joint Meeting on Pesticide Specifications (JMPS) technical provisions
    • REACH Regulation EC 1907/2006 (for registration requirements in Europe)

    Typical usage ratio

    • 3–7% w/w basis in chiral additive concentrate; actual level determined by final formulation matrix and compatibility screening with actives and carriers.

    Downstream process integration

    • Dosed after base ingredient melting and prior to final homogenization, commonly introduced into reaction vessels already containing carboxylic actives or surfactant carriers.

    Final product types

    • Chiral pesticide adjuvants, selective herbicide synergists, formulation boosters for seed treatment liquids.

    4. Advanced Material Monomer for Bio-Inspired Polymer Development

    Innovative polymer producers incorporate 3-Methylphenyl-D-Alanine as a chiral monomer to impart rigid, functional features into bio-inspired polymers and specialty hydrogels, supporting advanced applications in medical coatings and high-performance films. Synthesis protocols require strict control over monomer-monomer feed ratios to tune thermal and optical properties. Entry point involves copolymerization via amide linkage formation in polycondensation or ring-opening routes, with use-level tailored to achieve the desired mechanical and chiroptical outcomes confirmed by QC spectroscopy.

    Industry compliance standards

    • ISO 10993-5 Biological Evaluation of Medical Devices (for biostability and cytotoxicity in soft contact materials)
    • ASTM D7029 Standard for Polymer Synthesis
    • ISO 14001: Environmental Management for process waste minimization
    • USP <88> Biological Reactivity Tests (where appropriate for downstream healthcare films)

    Typical usage ratio

    • 5–20 mol% of total monomer feed; higher percentages applied for maximum chiral feature transmission or targeted mechanical property adjustment in research and pilot trial settings.

    Downstream process integration

    • Fed into initial monomer blend, activated with standard condensing agents, followed by polymer chain growth under inert atmosphere to limit racemization and byproduct formation.

    Final product types

    • Chiral polyamide films for medical device coatings, peptide-mimetic hydrogels for tissue scaffolds, and research-grade enantiomeric polymer materials.
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    Certification & Compliance
    More Introduction

    3-Methylphenyl-D-Alanine: Bringing Precision to Advanced Synthesis

    Introduction to the Value of 3-Methylphenyl-D-Alanine

    Producing specialty amino acids brings many technical challenges, especially for those of us who handle high-purity chiral compounds. Over the years, our lab teams have worked closely with chemists in pharmaceuticals, peptide research, and specialty synthesis to address nuanced requirements. Among these compounds, 3-Methylphenyl-D-Alanine stands out for its reliable performance and reproducible results across demanding reactions.

    Every batch of 3-Methylphenyl-D-Alanine we manufacture follows a rigorously controlled process, which ensures a stable and well-defined chiral center. This amino acid features a methyl group attached to the meta-position of the phenyl ring, offering structural distinction from common analogues like regular D-phenylalanine or para-methylphenylalanine. Chemists using our product will recognize the reduced chance of side-product formation—often a direct result of precise stereochemistry and minimized trace contaminants. In practical terms, this translates to higher yields and fewer purification steps, a clear benefit for anyone focused on time-sensitive synthetic routes.

    Key Characteristics and Specifications

    Our focus always begins with chemical purity and control over isomer content. Every kilogram of 3-Methylphenyl-D-Alanine undergoes full chiral HPLC analysis. Results consistently surpass 99% chiral and chemical purity, with mass balance confirmed by NMR and other spectroscopic techniques. Melting point and solubility tests match reliable standards so that integrators in peptide or drug synthesis can scale their work with confidence.

    The product arrives as a white to off-white crystalline powder, with a well-defined melting point that signals absence of unwanted residues. We pay special attention to moisture and volatile content, since even traces of water or solvent can trigger side reactions in coupled peptide synthesis or asymmetric transformations. For those working with automated synthesizers, this dry and stable product moves through dosing systems cleanly, without adhesion or clogging commonly reported with less refined analogues.

    Functional Applications and Real-World Performance

    Experienced peptide chemists look for compounds that perform consistently across scales, and 3-Methylphenyl-D-Alanine delivers this reliability. Its unique aromatic functionality, compared to unsubstituted D-phenylalanine, opens pathways for building specialized bioactive motifs and fine-tuning hydrophobic interactions in peptides or peptidomimetics. We have seen formulators in neuroscience, oncology, and antimicrobial research integrate this amino acid into novel therapeutic candidates to achieve more selective target binding or enhance pharmacokinetic properties.

    This particular derivative serves both as a key intermediate and a structural probe. Organizations focused on drug discovery often turn to 3-Methylphenyl-D-Alanine when studying receptor-ligand interactions that depend on subtle stereochemical differences. It offers predictable reactivity, making it easier to optimize ligation reactions or solid-phase automation. Many contract development and manufacturing organizations (CDMOs) have shared feedback on reduced byproduct generation—particularly during Fmoc-based peptide chain assembly—due to the robust chemical integrity we achieve through our controlled production.

    Beyond therapeutics, several research labs include this building block in molecular recognition studies and small-molecule libraries. The methyl group on the meta-position shifts electron density while maintaining sufficient steric bulk, resulting in altered reaction kinetics in specific cross-coupling or acylation strategies. This seemingly minor variation over other aromatic D-amino acids has helped solve structural challenges in enzyme mimicry and molecular scaffold design.

    How Careful Manufacturing Sets Our Product Apart

    We manufacture 3-Methylphenyl-D-Alanine entirely in-house, overseeing every stage from starting material selection to final packaging. Unlike materials sourced from generic bulk suppliers, our process controls for optical purity at each chiral step. The synthetic route avoids racemization and excessive protection-deprotection cycles, which typically create hard-to-remove impurities. Any deviation in stereochemistry or side chain substitution could result in lower activity in downstream biological studies or cause costly project delays, so we structure our QC methods to address those risks directly.

    Each lot comes from purpose-driven batch sizes, balancing cost efficiency with adaptability. For custom projects, our technical staff adjusts the process based on user application notes—feedback from end-users frequently inspires tweaks to crystallization or purification stages, leading to better solubility and handling properties. Packaging uses anti-static, moisture-proof liners to protect both powdered and granular forms, since static charge or contamination compromises subsequent weighing and blending.

    Comparing 3-Methylphenyl-D-Alanine to Other Common Analogues

    Chemists often compare 3-Methylphenyl-D-Alanine to its ortho- and para-methylated isomers, as well as to plain D-phenylalanine. While para- or ortho substitutions each shift electronic properties, the meta-substitution uniquely positions the methyl group to influence electronic and steric effects without excessive hindrance during peptide coupling steps. Many solid-phase synthesis protocols confirm smoother resin cleavage and lower aggregation when substituting in our 3-methyl variant, compared to bulkier or more electron-rich isomers.

    Standard D-phenylalanine, while widely available, cannot deliver the nuanced binding or adjust hydrophobic contacts in the same way. The research community uses our compound to map structure-activity relationships unavailable through unsubstituted analogues. Laboratories that have switched over report clearer analytical profiles and fewer late-stage scale-up surprises, a direct benefit for regulatory documentation and downstream quality assessments.

    Our technical support frequently facilitates troubleshooting for institutions that previously worked with other sources and encountered batch inconsistency or unexplained byproducts. In-house testing has revealed that off-ratio stereochemistry—common in materials purchased from commodity traders—slows synthesis, clogs reactors, and artificially lowers total yields. By maintaining batch records and traceable starting materials, we provide transparency and reproducibility valued by both academic and commercial partners.

    The Importance of Consistency for Research and Commercialization

    For every kilogram produced, the manufacturing process prioritizes reproducible purity, not just cost. Academic groups involved in method development and structure-activity studies rely on aliquots that match baseline spectra every time. Pharmaceutical companies scaling from milligram to kilogram quantities avoid setbacks related to variable impurity or moisture, which can halt a project or force reruns of expensive preclinical studies.

    Researchers working with positional isomers know how minor changes in starting materials can dramatically influence final product outcomes. In the case of 3-Methylphenyl-D-Alanine, our manufacturing team rigorously verifies specification compliance before shipment. Analytical data accompanies each lot, supporting regulatory documentation and patent filings for those seeking to commercialize peptide drugs or probes.

    Several commercial programs have reported on the value of using a supply partner that responds directly to questions about synthetic route and impurity profile, rather than passing answers through multiple middlemen. By handling technical inquiries ourselves, we prevent miscommunication—especially critical for IP-sensitive or rush projects. We keep technical dossiers up to date and provide them without delay to research and regulatory teams worldwide.

    Supporting Sustainable Chemistry

    Efforts towards greener chemistry run through every production step. Our plant reclaims solvents and minimizes energy-intensive crystallizations, cutting waste and cost for everyone downstream. Because specialty D-amino acids often employ chiral auxiliaries or enantioselective catalysts, we look for ways to recover reagents and cut overall waste streams. This commitment extends to packaging: recyclable cartons and solvent-free sealing reduce environmental footprint in line with modern procurement policies.

    The need for sustainable and predictable supply has come up repeatedly during customer visits. Many chemists face pressure to verify life-cycle impacts and carbon emissions for each new raw material. By manufacturing locally with transparent input sources, we cut product miles, provide compliance documentation, and assist with environmental impact assessments for our customers. Supply stability depends not just on production capacity, but also on reliable access to starting benzoic acid derivatives and amino acid chiral catalysts. Our long-term supply contracts with regional partners keep manufacturing both cost-effective and environmentally responsible.

    Responsive Collaboration with the Research Community

    Our approach emphasizes two-way communication with lab managers, senior scientists, and scale-up engineers. Rather than waiting for user complaints, we proactively share updates on process improvements, impurity tracking, and batch performance trends. This practice—developed through years of direct engagement—helps teams anticipate small-scale variability or flag changes in analytical methods early, before these become major project hurdles.

    Feedback cycles have influenced choices in drying methodologies, packaging material choice, and even lot testing protocol. For example, synthesis teams focused on large-volume peptide production have highlighted requirements for specific particle size ranges. An open line to our production chemists allows us to adjust micronization and post-processing schedules, shaving days from lead times and reducing handling losses.

    Customization and Scalability: Meeting Diverse User Needs

    Custom chemical manufacturing does not always mean building bespoke molecules from scratch. In the case of 3-Methylphenyl-D-Alanine, customization means adjusting quantities, packaging, or analytical protocols to support each user’s particular workflow. Academic labs may need a few grams with certificates of analysis for grant reporting, while industrial peptide manufacturers want multi-kilogram batches with traceability reports for auditing. Both get the same quality product, adjusted to fit actual procedures in the lab.

    Scale-up experience has taught us that technical documentation, shipping timelines, and real-time communication are as important as the chemical itself. A missed shipment or delayed customs clearance can derail time-sensitive syntheses. We maintain a stock of finished product in climate-controlled facilities, and rapid-release procedures mean researchers and manufacturers keep projects on track, even when last-minute adjustments are needed.

    Technical Service and On-the-Ground Problem Solving

    Direct links between our technical experts and end-users set our company apart from larger volume, more generic sources. Synthesizing complex peptides or small-molecule ligands often brings unforeseen side reactions or handling issues, especially near scale-up or analytical transfer. Our chemists have stepped in to run side-by-side impurity testing or troubleshoot unexplained spectral artifacts for users working under tight deadlines. Rather than relying on off-the-shelf answers, we map out underlying causes through combined knowledge of the starting material’s behavior and the nuances of each analytical method.

    By supporting problem-solving from the factory and the lab, we help eliminate bottlenecks in method development. Peptide chemists routinely ask about compatibility with unusual protecting group strategies or emerging coupling reagents. We validate our product’s compatibility on small scale and share findings openly, reducing repetition and risk for the end user. For institutions pursuing regulatory approval, we provide documentation that tracks raw materials, process changes, and analytical results over time—a necessity for modern compliance and IP protection.

    Delivering a Product Backed by Experience and Scientific Credibility

    Producing 3-Methylphenyl-D-Alanine is as much about process control, traceability, and application support as it is about the chemical properties themselves. The end users—be they in basic research, drug discovery, or industrial synthesis—demand confidence in every lot purchased. Ongoing investment in advanced analytical equipment means that each batch matches both internal specs and the high standards set by global regulators.

    Scientists choosing our 3-Methylphenyl-D-Alanine get more than an amino acid. They invest in stability, reliability, and direct support from a team that has grown in response to real market needs and user experiences. We have built our operation around producing value at every stage, from initial inquiry to final delivery, so that your project moves ahead smoothly and efficiently. This is the result of decades of experience not just in synthesis, but also in repeated hands-on collaboration with innovators at every scale.