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DL-Beta-(3-Bromophenyl)Alanine

    • Product Name DL-Beta-(3-Bromophenyl)Alanine
    • Alias DL-β-(3-Bromophenyl)alanine
    • Einecs 619-483-2
    • 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

    168040

    Product Name DL-Beta-(3-Bromophenyl)Alanine
    Cas Number 238747-41-0
    Molecular Formula C9H10BrNO2
    Molecular Weight 244.09
    Appearance White to off-white crystalline powder
    Solubility Slightly soluble in water
    Purity Typically ≥98%
    Storage Temperature 2-8°C
    Smiles N[C@@H](Cc1cccc(Br)c1)C(=O)O
    Iupac Name 2-Amino-3-(3-bromophenyl)propanoic acid
    Synonyms DL-3-Bromophenylalanine
    Stability Stable under recommended storage conditions

    As an accredited DL-Beta-(3-Bromophenyl)Alanine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Packaged in a sealed 25g amber glass bottle, labeled "DL-Beta-(3-Bromophenyl)Alanine," with safety symbols and batch information.
    Shipping DL-Beta-(3-Bromophenyl)Alanine is shipped in tightly sealed containers, protected from light and moisture, and typically kept at room temperature. Packaging complies with safety regulations for hazardous materials. Appropriate labeling and documentation accompany the shipment to ensure safe handling during transport. Expedited or temperature-controlled shipping may be arranged if required.
    Storage DL-Beta-(3-Bromophenyl)Alanine should be stored in a tightly closed container in a cool, dry, and well-ventilated area. Protect it from moisture, direct sunlight, and incompatible materials such as strong oxidizing agents. Keep it at room temperature unless otherwise specified by the supplier, and ensure proper labeling. Store away from sources of ignition and follow standard chemical storage safety protocols.
    Application of DL-Beta-(3-Bromophenyl)Alanine

    Applications of DL-Beta-(3-Bromophenyl)Alanine in Industrial Manufacturing

    DL-Beta-(3-Bromophenyl)Alanine is a specialty amino acid derivative that finds well-documented application in advanced pharmaceutical synthesis, peptide drug manufacturing, customized biochemical intermediates, agricultural research actives, and analytical reference compound production. As a direct producer with multi-step synthesis capabilities, we supply this intermediate into the following authentic industrial domains, meeting demanding quality and regulatory requirements at each stage.

    1. Peptide-Based Drug Synthesis

    Pharmaceutical manufacturers use this amino acid derivative for the production of peptide and peptidomimetic active pharmaceutical ingredients (APIs) targeting central nervous system and oncological therapies. The material’s brominated aromatic side chain enables critical structure-activity modifications that cannot be substituted by generic amino acids. You will find it specifically formulated during solid-phase or solution-phase peptide chain elongation, where precise stereochemical incorporation is required to develop molecules with desired pharmacokinetics and target affinity.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • European Pharmacopoeia (Ph. Eur.) monograph requirements for related peptide APIs
    • US FDA 21 CFR Part 211 for finished pharmaceuticals
    • ISO 9001:2015 Quality Management Systems

    Typical usage ratio

    • 0.5%–2% by total amino acid input, with exact percentage set by the sequence position and dosage form requirements; further adjusted for enantiomeric purity and peptide chain length.

    Downstream process integration

    • Material enters after initial resin loading (if solid-phase), introduced as a protected amino acid ester during coupling cycles, followed by deprotection and cleavage steps; used in combination with HATU/HBTU or carbodiimide coupling reagents under inert conditions.

    Final product types

    • Research-grade peptides for structure-activity relationship (SAR) studies
    • Preclinical and clinical peptide API candidates
    • Diagnostic imaging peptide agents
    • Pharmaceutical peptide intermediates for further derivatization

    2. Pharmaceutical Intermediate for Heterocyclic Drug Synthesis

    The compound serves as a valuable building block in the multi-step synthesis of heterocyclic drugs, especially for generating brominated benzene derivatives that act as precursors for non-peptidic APIs in CNS and metabolic disorder treatment pipelines. The installed bromo group is directly deployed in Suzuki-Miyaura or Buchwald-Hartwig cross-coupling reactions to access highly substituted aromatic pharmaceutical scaffolds that require strict trace impurity control and reproducible reactivity in GMP batch production.

    Industry compliance standards

    • ICH Q11 Development and Manufacture of Drug Substances
    • EU Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH)
    • Chinese Pharmacopoeia (ChP) intermediate standards (when applicable)
    • GMP facility qualification with batch record traceability

    Typical usage ratio

    • 10–30 mol% relative to the brominated precursor step, depending on the targeted carbon–carbon or carbon–nitrogen coupling transformation; optimized during scale-up to manage conversion rate versus residual base sensitivity.

    Downstream process integration

    • Feeds into halogen-metal exchange or palladium-catalyzed coupling reactors after initial protection/deprotection loops; downstream processing includes purification via crystallization or chromatography to pharmaceutical grade.

    Final product types

    • Key intermediates for psychiatric and anticonvulsant drug APIs
    • Brominated heterocycle reference standards
    • Specialty fine chemicals for regulatory drug master file (DMF) submissions
    • Small-molecule lead compound intermediates

    3. Biochemical Research and Custom Peptide Library Synthesis

    Contract research organizations and institutional laboratories employ DL-Beta-(3-Bromophenyl)Alanine in combinatorial chemistry projects focused on binding studies, selectivity mapping, and enzymatic probe characterization. Its unique electronic and steric profile makes it essential for constructing peptide libraries in high-throughput screening formats, enabling the exploration of modified binding motifs in receptor-ligand and protein–protein interaction research.

    Industry compliance standards

    • ISO 13485:2016 for laboratory reagents when used in diagnostic kit components
    • OECD Principles of Good Laboratory Practice (GLP)
    • ACS Reagent Grade Specifications where applicable
    • Institutional Research Ethics oversight

    Typical usage ratio

    • 1–5 amino acids per 10–100 sequences within a peptide mixture, adjusted for target specificity and intended library complexity; dosing depends on plate or array scale.

    Downstream process integration

    • Incorporated during parallel peptide synthesis system cycles; often added as a pre-weighed protected amino acid for direct robotic dispensing, followed by library pooling and purification via UPLC or HPLC fractionation.

    Final product types

    • High-diversity peptide libraries for drug discovery
    • Protein–protein interaction mapping probes
    • Affinity-tagged peptide standards
    • Synthetic enzyme substrates for laboratory assays

    4. Analytical Reference Material Production

    Specialty chemical manufacturers and analytical standards suppliers use this compound to prepare certified reference materials (CRMs) and analytical standards necessary for development, validation, and calibration of quantitative methods in pharmaceutical quality control. Its precise molecular fingerprint allows traceable identification and quantification in impurity profiling and stability testing workflows, especially for brominated aromatic residues in regulated drug substances.

    Industry compliance standards

    • ISO 17034:2016 Requirements for the Competence of Reference Material Producers
    • ISO/IEC 17025:2017 General Requirements for Testing and Calibration Laboratories
    • USP General Chapter <1040> Analytical Instrument Qualification
    • US FDA Guidance for Industry: Analytical Procedures and Methods Validation

    Typical usage ratio

    • 0.1–1 mg per analytical test, issued as highly pure standard (≥99%) in single-use ampoules; quantity determined by method sensitivity, matrix, and required calibration range.

    Downstream process integration

    • Enters post-synthesis isolation via repeated recrystallization or preparative HPLC; followed by unit-dose ampoule or vial filling under inert gas, then validated using primary standard comparison and mass balance documentation.

    Final product types

    • Certified analytical standards for LC-MS, GC-MS, and HPLC calibration
    • Pharmacopoeial impurity reference materials
    • System suitability standards for regulatory analytical methods
    • Reference vials for pharmaceutical QA/QC laboratories
    Free Quote

    Competitive DL-Beta-(3-Bromophenyl)Alanine prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    DL-Beta-(3-Bromophenyl)Alanine: Crafted for Reliable Innovation

    The Manufacturer’s Perspective

    In our work, every batch of DL-Beta-(3-Bromophenyl)Alanine begins long before any flask finds its place in the lab. As a team at the manufacturing site, we understand this compound’s critical role for research chemists, pharmaceutical developers, and process engineers. This amino acid derivative often serves as an intermediate for exploring new peptides, small molecule drugs, and fine-tuned catalyst systems that demand precision at the molecular level. We wake up to these challenges every day, committed to consistent, clean output.

    Model, Purity, and Physical Details

    Our standard product carries the designation DL-Beta-(3-Bromophenyl)Alanine, without fancy trade names or opaque terms. The “DL” label states what’s inside the drum clearly: a racemic mixture containing both D and L isomers. As synthetic chemists ourselves, we pay constant attention to racemate purity—starting often from chiral sources and validating with each chromatogram. The typical batch appears as a crystalline powder with a white to faintly beige tint. Melting point and solubility measures stay well-documented, and purity by HPLC generally reaches above 98%, a result that takes daily effort in every reactor run and post-processing cycle. Moisture content stays controlled by working in a dry environment, and impurities—brominated or otherwise—get chased down well before bulk filling.

    Manufacturing Foundation: Reliable Supply and Performance

    Those of us at the production line see clearly that pharmaceutical innovation leans heavily on uninterrupted supply. DL-Beta-(3-Bromophenyl)Alanine often forms the skeleton of larger structures, whether in chiral auxiliaries, peptidomimetics, or as a starting point for halogenated pharmacophores. Scientists count on reliability. Our shop runs multi-step synthesis with in-process controls—not every lab tolerates trace solvent, so we focus on high-vacuum drying, routine GC analysis, and rigorous cleaning between runs. Chemical smell, color, and texture tell us as much as any analytical report. Equipment cleaning logs serve us as a shield against cross-contamination and keep residual bromide and unrelated amino analogues out of the material.

    Manufacturers face the reality that global procurement looks for competitive cost but rarely rewards hidden shortcuts. We buy raw phenylalanine from vetted partners who disclose every upstream solvent and catalyst. Supply chain integrity matters because robust, reproducible synthesis supports product claims in the field and avoids headaches in regulatory filings. On-site, chemists wear more than gloves—they wear responsibility to ensure no byproduct carries through the process. Our internal batch records track time, temperature, and reagent lot numbers for every vessel change.

    Distinguishing Features in Use

    DL-Beta-(3-Bromophenyl)Alanine shows its strengths best as a versatile building block—its beta-positioned bromine opens more options than unsubstituted phenylalanine or ortho/para-substituted analogues. Electrophilic aromatic substitution, Suzuki coupling, and nucleophilic aromatic substitution run more smoothly and provide synthetic flexibility. In many labs, this lets researchers modify peptides post-assembly, add tracers, or experiment on a lead series with safer halogen swaps. We’ve seen the molecule become a platform for radiolabel introduction, or a point of attachment in D-amino-acid chimeric peptides. Having both D and L forms mixed simplifies screening early in discovery.

    Comparing to standard phenylalanine or even para-bromo derivatives, the meta-bromo position changes both reactivity and physical behavior. During custom synthesis projects, chemists prefer this regioisomer due to distinctive steric and electronic effects in peptide backbones. By producing the beta-(3-bromophenyl) variant, we help project teams reduce synthesis steps and gain structure-activity insights that would otherwise take longer to unlock.

    Usage in Applications

    Laboratories and pilot plants handle this material in multi-gram to commercial scales, using it in peptide synthesis, targeted pharmaceuticals, and building block inventories for custom libraries. Researchers exploring brominated tyrosine analogues or halogen-rich drug scaffolds often contact us about batch-to-batch consistency. Our plant has supplied DL-Beta-(3-Bromophenyl)Alanine for both solid-phase and solution-phase peptide assembly. Over the years, we have retooled our process as users have shifted from simple methyl ester intermediates to more complex protecting group strategies—each adjustment guided by user feedback and published data.

    Sometimes, small impurities in a fine chemical don’t impact high-throughput screening—analytical instrumentation picks out minor contaminants without confusion. Drug discovery, peptide sequencing, and radiolabeling research demand more. Sample purity translates to adaptability: one project leader once described how a poorly resolved isomer nearly derailed their lead series investigation. After switching to our material, they avoided unnecessary purification and kept timelines. These stories echo across customer feedback, and, as a manufacturer, we use that real-world experience to fine-tune process parameters.

    Challenges in Manufacture and Distribution

    Neither regulatory tightening nor market shifts stand still in the specialty chemicals world. End-users raise questions about trace metal residues, phthalate contamination, or cross-reactive halogen sources. A few years ago, our team invested in expanded in-process testing, using both automated HPLC and inductively-coupled plasma analysis. This adds hours to our workflow, but also keeps our certification process smooth—especially for partners preparing for FDA or EMA submissions. Frequently, we run side-by-side method validations with formulation scientists, directly comparing our feedstock performance against historical lots.

    Logistics pose their own evidence of a changing landscape. Fluctuating import duties, pressure on cold chain shipment, and documentation for customs compliance each pull our attention daily. Countries treat halogenated amino acids differently under import regulations. We prepare compliance documents for every order, but real-time traceability for every kilo means barkeeping at the drum level—the same vigilance we would want from our own suppliers. Organic traces and stability in long-term storage move us to upgrade container materials, switching from standard PE drums to specialized liners that prevent water ingress and reduce static buildup.

    Environmental Impact and Future Focus

    Environmental scrutiny falls on chlorinated and brominated intermediates more each year. Our manufacturing process produces some waste containing residual bromide and organic solvent, a reality every producer faces. We operate on a closed-loop principle: off-gas scrubbers and liquid-phase neutralization help minimize emissions. Used mother liquors undergo solvent recovery and selective phase separation, not disposal. These adaptations didn’t come from regulation alone—they reflect the values of our technical staff, many of whom started in academic labs that drilled sustainable chemistry long before it became industry standard.

    In research and development reviews, we’ve partnered with academic groups aiming to replace stoichiometric halogenation steps with catalytic or biocatalytic alternatives. Such methods aren’t mature enough for every order, but we see evidence in pilot-scale runs that future synthesis could trim energy and raw input needs. One ongoing project uses electrochemical bromination on a flow basis, a technology that could cut both waste and hazard in the years ahead. While that research continues, we update our batch records to document every deviation and keep external auditors informed—openness with our process advantages and flaws builds lasting trust.

    Differences Compared to Other Products

    In the world of fine chemicals, subtle differences turn into costly mistakes or breakthrough opportunities. Standard phenylalanine analogues—whether ring-unsubstituted, para-brominated, or D/L segregated—show distinct solubility, melting, and reactivity profiles compared to DL-Beta-(3-Bromophenyl)Alanine. We hear from formulation chemists that the meta-bromo group enables better incorporation into secondary structure probes, fluorogenic assays, and halogen bonding screens. The compounded effect of beta-substitution and meta-bromination reveals itself downstream; a change here leads to altered pharmacokinetic and stability profiles in the final compounds.

    Beyond chemical differences, our manufacturing experience separates DL-Beta-(3-Bromophenyl)Alanine from mass-market offerings. Some firms ship product containing variable water content, or skip rigorous chiral purity checks, betting on user-side purification to fix unrefined goods. We run each lot through dual HPLC and NMR, confirming identity and racemate equivalence. As a producer, responsibility does not end after the drum leaves our hands. We engage directly if any customer detects an off-profile batch, and are prepared to run stability or impurity analysis alongside them. This is not just a supply chain—it’s an ongoing technical partnership, forged from the reality that every product quality slip costs users time and trust.

    Sourcing and Quality Control Practices by a Manufacturer

    Our sourcing team depends on face-to-face meetings with material suppliers, whether in raw phenylalanine, protected intermediates, or specialty reagents. Every new lot brings a new analysis file. We never trust a paper certificate alone; in-house verification makes up the bedrock of our incoming QA workflow. Purity, water content, and trace solvent levels often reveal more about a producer than polished catalogs. Once material clears inspection, our production chemists monitor every stage from bromination through chromatographic purification and final packaging.

    Several years ago, an unexpected drop in purity from a solvent vendor nearly forced a major production halt. We responded by tripling supplier audits and installing real-time impurity detection at drum filling. These upgrades cost us a few weeks and a few thousand dollars, but our repeat customers now benefit from fewer “out-of-spec” headaches. To us, manufacturing quality remains not just a regulatory checkbox, but a reflection of our technical values.

    Real-world Feedback and Adjustment

    Listening to the research and production communities, we absorb direct and unfiltered user feedback. Stories matter: like the bioprocess developer who reported a single contaminant spike derailing complex enzyme screens, or the contract research firm that switched suppliers after repeated batch failures from inconsistent material. In most cases, we adjust our cleaning procedures, swap auxiliary reagents, or invest in another level of analytical coverage. Directly engaging with customers, our technical staff understand firsthand the implications for time, data integrity, and ultimately, product development.

    Addressing User Needs: Batch Sizes and Customization

    User demand for flexible scale and packaging grows each year. By keeping in-house blending and filling, we address requests ranging from multi-gram research samples to multi-kilogram production runs. Researchers often start with small exploratory batches, later requesting kilogram lots for scale-up or production. Custom pack sizes and blending protocols mean more hands-on effort in the factory, but our experience shows that responsiveness outweighs the simplicity of a single fixed-size SKU.

    We’ve learned that adjusting particle size, re-granulating for custom reactors, and switching filling containers solves logistical challenges for formulation or robotic sampling. This “on the ground” learning doesn’t get captured in glossy marketing slides—it happens through trial, correction, and collaboration with users in the field.

    Looking Forward: New Directions and Ongoing Commitments

    Each year presents a mix of opportunity and unresolved challenge. The popularity of DL-Beta-(3-Bromophenyl)Alanine in emerging drug pipeline projects, high-throughput peptide synthesis, and new cross-coupling strategies continues to grow. Our commitment as a manufacturer centers on direct technical communication, robust internal controls, and investment in cleaner, smarter synthesis processes. We pledge to keep revisiting our own assumptions as the field evolves. We draw lessons from our peers, from user community experience, and from every batch we process—not just to maintain today's standards, but to set new benchmarks for reliability, sustainability, and transparency in specialty amino acid production.

    As manufacturing chemists, we know the journey from raw aromatic building block to finished pharmaceutical, probe, or material starts with choices made in our own plant. The trust extended to us by scientists, developers, and engineers is sustained through care, attentiveness, and openness about the challenges and trade-offs of modern chemical manufacturing. DL-Beta-(3-Bromophenyl)Alanine represents both the progress and the complexity of this journey. We keep building better products—listening, learning, and adapting with every collaboration and every kilogram delivered.