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L-Glutamic Acid 5-Methyl Ester

    • Product Name L-Glutamic Acid 5-Methyl Ester
    • Alias glutamic-acid-5-methyl-ester
    • Einecs 2536-24-1
    • 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

    806650

    Chemical Name L-Glutamic Acid 5-Methyl Ester
    Molecular Formula C6H11NO4
    Molar Mass 161.16 g/mol
    Cas Number 5923-98-4
    Appearance White to off-white solid
    Solubility In Water Soluble
    Melting Point 125-130°C
    Purity >98%
    Storage Temperature 2-8°C
    Inchi Key XQQDNVXRWIIBHP-BYPYZUCNSA-N

    As an accredited L-Glutamic Acid 5-Methyl Ester factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White, sealed HDPE bottle containing 100 grams of L-Glutamic Acid 5-Methyl Ester; clearly labeled with hazard, batch, and expiry information.
    Shipping L-Glutamic Acid 5-Methyl Ester is shipped in tightly sealed containers, protected from moisture, heat, and direct sunlight. Packaging complies with chemical safety regulations, ensuring stability during transit. Proper labeling and documentation accompany the shipment, and transport is conducted under standard chemical shipping practices, typically within a temperature-controlled environment if required.
    Storage L-Glutamic Acid 5-Methyl Ester should be stored in a tightly closed container, in a cool, dry, and well-ventilated area. Protect from moisture, heat, and direct sunlight. Keep the chemical away from incompatible substances such as strong oxidizers and acids. Ideally, store at room temperature (20–25°C) and ensure proper chemical labeling and safety measures are in place.
    Application of L-Glutamic Acid 5-Methyl Ester

    Applications of L-Glutamic Acid 5-Methyl Ester in Industrial Manufacturing

    L-Glutamic Acid 5-Methyl Ester functions as a niche raw material across several specialized chemical synthesis sectors. As an experienced manufacturer, we outline its recognized downstream applications in high-value processes requiring strict compliance, careful dosing, and robust process control. Below, we detail focused industrial scenarios where production teams rely on this ester intermediate as a critical constituent.

    1. Pharmaceutical Synthesis: Chiral Building Block for Active Pharmaceutical Ingredients (APIs)

    Within the pharmaceutical sector, formulators use L-Glutamic Acid 5-Methyl Ester to construct peptide-based APIs and chiral drugs where stereochemical fidelity is essential. Its amino acid backbone with methyl esterification streamlines enantioselective syntheses by providing a reliable, protected glutamate unit. Integration typically involves solid-phase peptide synthesis or selective chemical modification, allowing downstream chemists to customize side-chain protection and sequential coupling. Due to regulatory stringency, manufacturers must validate traceability and impurity thresholds throughout the process. Final APIs derived may include CNS agents and antiviral compounds.

    Industry compliance standards

    • USP and Ph. Eur. monographs for amino acid derivatives (where referenced)
    • ICH Q7A GMP for Active Pharmaceutical Ingredients
    • FDA 21 CFR Parts 210/211: Drug Manufacturing Controls
    • Qualified Person (QP) oversight for API traceability (EU)

    Typical usage ratio

    • Ranges from 5–25% of total amino acid/reactant mix by molarity, adjusted based on target peptide length and protection scheme.

    Downstream process integration

    • Charged into the reactor for peptide chain elongation (solution phase or SPPS)
    • Deprotection reactions post-ester use
    • Purification through preparative HPLC before API isolation

    Final product types

    • Enantiomerically pure peptides
    • Chiral amine intermediates
    • Branched-chain API precursors for CNS therapies
    • Antiviral drug candidates requiring protected glutamate units

    2. Specialty Polymer Synthesis: Biodegradable Polyesters

    Producers of advanced biopolymers use L-Glutamic Acid 5-Methyl Ester as a multifunctional monomer, leveraging its reactivity of both carboxylic and amino groups. The methyl ester group stabilizes the glutamic acid during ring-opening polymerization, enabling formation of biodegradable polyesters and polyamides for medical or packaging applications. Its precise input ratio controls molecular weight and hydrophilicity, which affects mechanical strength, degradation profile, and biocompatibility of the end product. These downstream operations require consistent raw material purity and validated batch records under ISO and food contact regulations.

    Industry compliance standards

    • ISO 13485 for medical-grade polymer manufacturing
    • EU Food Contact Materials Regulation (EC) No 1935/2004 for packaging resins
    • USP Class VI Biological Reactivity Tests (where applicable)
    • REACH registration for polymer intermediates

    Typical usage ratio

    • 10–30 mol% relative to total monomeric feed, adjusted to target glass transition temperature and tensile modulus.

    Downstream process integration

    • Direct feed into ring-opening or step-growth polymerization reactors
    • Chain extension with diols or diamines
    • Vacuum devolatilization and pelletization before extrusion or molding

    Final product types

    • Bioresorbable surgical sutures
    • Biodegradable packaging films and trays
    • Implantable polymer devices
    • Medical mesh scaffolds

    3. Fine Chemical Synthesis: Intermediate for Agrochemical Actives

    In agrochemical development, formulators employ this methyl ester as an intermediate for the targeted modification of glutamic acid analogs, particularly in the synthesis of herbicide safeners, plant growth regulators, and selective pesticides. The methyl protection permits step-selective transformations (e.g., amidation, reduction, or alkylation) before final hydrolysis, streamlining the overall route and maximizing yield fidelity. Strict QA is applied to monitor for residual esters and process by-products, ensuring full compliance with regional agrochemical active ingredient registration.

    Industry compliance standards

    • OECD Good Laboratory Practice (GLP) for active synthesis
    • ISO 9001:2015 for quality management
    • EPA 40 CFR Part 158 for pesticide ingredient registration (USA)
    • EU Regulation (EC) No 1107/2009 for plant protection product approval

    Typical usage ratio

    • 5–20% weight ratio versus other core reactants, tailored to crop-specific synthesis targets and downstream scale-up requirements.

    Downstream process integration

    • Initial step as a masked amino acid for chain modification
    • Selective ester hydrolysis before crystallization and formulation
    • Subsequent blending or microencapsulation before delivery to formulators

    Final product types

    • Herbicide safener intermediates
    • Plant growth modulator startups
    • Novel pesticide delivery agents
    • Crop protection adjuvants

    4. Peptide Research Reagents: Solid-Phase Synthesis Linkers and Building Blocks

    Research laboratories and custom peptide synthesis operations depend on this methyl ester as a linker and segment for complex peptide assembly using solid-phase synthetic platforms. The protected carboxyl group prevents premature reactions, supporting stepwise elongation without unwanted side reactions. Technicians optimize conditions (resin selection, cleavage chemistry) based on the desired peptide motif, and routinely verify integrity through LC-MS or NMR. Every batch must document chain of custody and comply with laboratory reagent safety and purity protocols.

    Industry compliance standards

    • ISO/IEC 17025 for analytical verification
    • GLP compliance for reagent traceability
    • ACS Reagent Grade Specifications
    • Controlled documentation under laboratory quality management systems

    Typical usage ratio

    • Varies from 2–15 equivalents per chain elongation cycle, determined by sequence complexity and platform (microwave-assisted or conventional SPPS).

    Downstream process integration

    • Loaded as protected amino acid onto resin-bound initiators
    • Cycle-specific deprotection and coupling steps
    • Final global deprotection prior to peptide cleavage

    Final product types

    • Custom synthetic peptides (for research/diagnostics)
    • Cyclic peptide probes
    • Bioactive peptide libraries for screening
    • Affinity purification reagents

    5. Nutrient Derivative Synthesis: Precursors for Food and Feed Additives

    Producers of specialty food and feed additives use this ester as a precursor in non-standard amino acid enrichment processes, such as the formulation of flavor enhancers and bioavailable nutrient complexes. Its methylated form provides easier integration in controlled hydrolysis or transamination to yield target free acids or specific derivatives. Processing adheres to food-grade safety and allergen monitoring as ingredient conversion approaches finalized dietary use in either human or animal nutrition.

    Industry compliance standards

    • FAO/WHO Codex Alimentarius for amino acid additives
    • FSSC 22000 and ISO 22000 food safety management
    • EU No 231/2012 for food additive specifications
    • FDA GRAS Notices (Generally Recognized as Safe) where applicable

    Typical usage ratio

    • 1–10% by dry weight in additive precursor batches, optimized through stoichiometry for flavor or fortification goals.

    Downstream process integration

    • Conversion via controlled enzymatic hydrolysis
    • Crystallization for isolation of free glutamic acid analogs
    • Subsequent granulation or blending for tableting or powder formulations

    Final product types

    • Monosodium glutamate alternatives
    • Bioavailable mineral–amino acid complexes for feed applications
    • Customized glutamyl dipeptides for nutritional fortifiers
    • Non-proteinogenic amino acid mixes
    Free Quote

    Competitive L-Glutamic Acid 5-Methyl Ester prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    L-Glutamic Acid 5-Methyl Ester: Reliable Performance from an Experienced Manufacturer

    Introducing Our L-Glutamic Acid 5-Methyl Ester

    Manufacturing L-Glutamic Acid 5-Methyl Ester involves more than following formulas—it draws on years of hands-on process optimization, raw material quality control, and a tight focus on batch reproducibility. Our facilities have spent years refining every aspect of our neutral ester production, so each consignment stands up to the world’s tightest application demands. From our own experience on the factory floor, we know mishandled feedstock or process drift can throw out purity and yield. Each lot is monitored, tracked, and sent through HPLC checks. Our L-Glutamic Acid 5-Methyl Ester finds applications in multiple specialty areas, and the real chemical performance you need comes from careful synthetic route selection, not just marketing claims.

    Process Control, Not Promises

    We often receive inquiries about what sets one supplier apart from another. In truth, the real difference shows in long-term results: stable color, consistent melting point, manageable moisture, and reproducible assay every shipment—not just at product launch, but years down the line when seasons and supplier trends shift. L-Glutamic Acid 5-Methyl Ester production relies heavily on the control of methylation and purification, where any deviation directly affects the chemical’s value and behavior in your application.

    Many third parties offer a product with the right CAS number. From synthesis tank to final packout, though, you’ll find lots with co-eluting impurities, poor filtration, or batch-to-batch inconsistency. As the manufacturer, we tackle these realities—from keeping the methyl source dry and pure to training vessel operators not to rush the distillation step. These points make or break both the product’s downstream reactivity and its commercial utility.

    Specifications That Reflect Real-World Needs

    Through years manufacturing L-Glutamic Acid derivatives, we found that blanket specifications rarely serve customers who actually rely on this compound. We offer physical forms typically in white crystalline powder, with HPLC purity well above 98%. Visual color controls are strict; we reject lots with faint yellowing or other visible contamination. Moisture content remains under the weight loss tested threshold to improve shelf performance and minimize hydrolysis during transport.

    We don’t just send data sheets—our technical staff review new lots for odor, tactile flow, and stability as well. In process laboratories, heavy residual solvents interfere with synthetic steps, so we maintain close solvent content control. Each kilogram can be traced to particular synthesis runs, giving technical teams clarity when investigating process deviations in plant trials or scale-up runs.

    Direct Applications and End-Use Value

    L-Glutamic Acid 5-Methyl Ester is an important building block in both research and industrial contexts. Most commonly, customers request it for peptide coupling reactions, use in modified amino acid synthesis, and as a starting material for further esterifications or amide bond-forming reactions. In medicinal chemistry, it enables specific modifications to the glutamic acid core, adding versatility to drug intermediates and analog synthesis.

    When researchers or pilot lines order this methyl ester from us, they report fast dissolution in standard organic solvents and minimal byproduct formation under standard coupling conditions. Due to the methyl ester’s selective reactivity, it fits into routes where tert-butyl or benzyl esters would slow down deprotection or demand special handling. Our process avoids excess acid residues, so downstream side reactions remain under control—a detail seasoned chemists will appreciate in scale-up or when batch records require meticulous reconciliation.

    Differences from Other Glutamic Acid Derivatives

    The market includes several glutamic acid esters, including the ethyl and benzyl forms. Each form gives specific reactivity in the lab—and we see customers sometimes switch between them depending on solubility, protection group requirements, or downstream transformations. Our manufacturing team tested a range of esters using identical peptide coupling protocols, and repeatedly found that the methyl ester delivers clean, predictable reactions under mild conditions, without the need for harsh acids or metals for deprotection.

    Many customers compare our L-Glutamic Acid 5-Methyl Ester with the standard L-glutamic acid or N-protected derivatives. The key distinction arises in coupling efficiency and downstream workups. Control over the methyl ester hydrolysis window allows a smoother transition to free acid forms; technicians report fewer purification cycles and better overall isolation yields. The simple, clean methyl protection scheme minimizes cross-reactivity. While ethyl or other bulkier esters bring increased solubility in apolar solvents, the methyl group provides an easier deprotection step—critical for labs balancing cost, time, and throughput.

    Raw Material Traceability and Process Knowledge

    From a manufacturer’s view, supplying L-Glutamic Acid 5-Methyl Ester means making upstream investments in precursor quality. We audit every source of L-glutamic acid regularly, checking chiral integrity and residual impurity profiles. After years refining our methylation procedures, our process teams learned that minor lot-to-lot variations in caustic content or solvent dryness can have real impacts on end purity. Our plant runs frequent in-process controls, never skipping analytical HPLC checks at bottlenecks, and always calibrating reactors for scale-up.

    Traceability gives research and manufacturing customers greater confidence. In real projects, contamination at the esterification stage ripples through process development, often causing rework. By controlling every step, from sourcing to final crystallization, we help our customers avoid weeks wasted on surprising technical setbacks—like unexplained low assay or excessive hydrolysis during long storage.

    Batch Consistency and the Human Element

    Machines perform repeat synthesis runs, but it takes practiced people to notice real-world shifts or anomalies in manufacturing. In practice, small deviations—whether a sticky batch or a faintly off odor—signal underlying equipment or material issues. Our plant technicians spot and log every fluctuation, flag unusual crystallization times, and intervene early. From tight temperature control in the methylation phase to the careful drying regime before packing, human oversight ensures that each kilogram of L-Glutamic Acid 5-Methyl Ester meets our internal benchmarks.

    Large buyers in pharma and biotech rely on this predictability. Multi-month process campaigns cannot afford setbacks due to fluctuating acid content or physical appearance. Our continuous on-site laboratory support links manufacturing and technical service, ensuring that any customer issues receive experienced evaluation and, where needed, rapid changes to future batch schedule.

    Process Troubleshooting and Application Support

    Real manufacturing doesn’t always go as planned. There’s value in a technical support team that’s handled the same reactions—and encountered the same failures—that customers face. When we receive reports of unexpected side products, blocked filters, or low crystallization yield, both lab and production specialists engage actively. For customers optimizing coupling steps or concerned with loss on drying, we share practical knowledge: solvent choice, pH management, and small changes in workup that prevent costly reruns.

    It’s common practice for our team to collaborate directly with R&D units, troubleshooting not just product specs, but full synthesis routes. We often provide small pre-shipment samples for compatibility tests, and routinely explain real process interactions experienced during pilot-scale manufacturing. Feedback from hundreds of production runs informs our technical bulletins, allowing us to help new users avoid missteps and improve efficiency.

    Adaptation to Research and Production Needs

    Lab users and scale manufacturers expect different things from L-Glutamic Acid 5-Methyl Ester. We see early-stage R&D labs focus on small-quantity flexibility and varying solvent systems, while continuous plant users demand long-term packaging stability, minimal fines, and consistent shipping conditions. Our facilities set up inventory and packaging plans to align with each segment’s priorities. R&D lots undergo frequent retesting, while plant-sized orders leave only after multiple QA and stability checks.

    A good relationship with buyers extends beyond box shipment. We collect user feedback on each application, adjusting drying depth and sieving steps if recurring issues pop up in technical processes. Our willingness to modify certain physical aspects—such as flow or pack density after customer feedback—shows our intent to remain a dependable behind-the-scenes presence in both research and manufacturing ecosystems.

    Packaging, Storage, and Shelf Stability

    Over years supplying L-Glutamic Acid 5-Methyl Ester, we’ve faced nearly every kind of shipping and storage environment—humid tropics, winter chill, or lengthy sea transport. Product handling on site is just as important as plant-side care. We use airtight, moisture-resistant containers, choosing liners and seals only after years of real shipment data. Drums and containers are matched to order sizes; larger customers get palletized bulk, while research users take smaller, resealable units.

    We work with warehousing teams to set storage guidelines based on actual temperature and humidity data from past shipments. Chemical reactivity and physical integrity remain stable, even through months of storage, so long as tight container integrity and clean warehouse conditions hold. We’ve learned that visible caking or powder aggregation sometimes indicates minor moisture penetration; direct customer channels let us act quickly and adjust future shipment protocols when issues arise.

    Regulatory and Analytical Background

    Supplying international customers brings a patchwork of regulatory expectations. We keep updated records of product quality documentation, running analytical validations not just for our internal process, but for third-party certificate requirements. In actual practice, this means every shipment leaves our facility with a batch-specific analysis and, when requested, full chromatograms and stability data. These records support downstream filings, and ensure users remain in compliance with regulatory laws tied to their manufacturing locations.

    Our in-house quality managers audit not just documentation, but also hands-on laboratory protocols, so technical staff understand the underlying chemical profiles and can interpret results past the basics of pass/fail. This commitment reflects our real experience: only deep understanding—not checklists—allows for fast, accurate communication with heads of quality control and regulatory affairs in diverse customer industries.

    Global Logistics and Supply Chain Lessons

    Global supply tracks teach hard lessons—especially after supply disruptions, customs delays, or pandemic-era shutdowns. Through these, we have learned to keep buffer stocks of both raw materials and final product. Our ability to maintain delivery schedules earned trust among multinational buyers. Transparency and advance warning stay core to our operation; if force majeure situations ever threaten a delivery, we provide as much lead time as possible and help customers triage their own internal demand accordingly.

    Flexible logistics networks enable us to route urgent small-lot shipments separately, ensuring R&D projects do not stall even if larger sea freight containers face port delays. Regional warehouses and tight partnerships with forwarders support timely delivery, and careful use of temperature and humidity monitors confirm product quality at delivery.

    Continuous Improvement Based on Real Feedback

    We constantly gather information on L-Glutamic Acid 5-Methyl Ester’s use and performance. Through repeat interactions with process engineers and formulation chemists, we’ve changed minor process variables, adjusted QA sample sizes, and shifted packaging standards to match actual workflow needs. Many of these changes emerge from customer site visits and troubleshooting sessions, where issues—missed by standard protocols—come to light. These lessons directly shape subsequent manufacturing runs.

    Long-term partnerships anchor our approach, and recurring technical reviews across product lines help us remain agile. Every complaint or deviation sparks direct investigation, and input from application chemists—whether on unexpected decomposition, filter clogging, or application incompatibility—drives us to refine both chemistry and logistics.

    The Value Experienced Manufacturing Brings

    Whenever technical buyers compare sources of L-Glutamic Acid 5-Methyl Ester, the true value lies not in generic features, but in tangible, stable performance and responsive problem-solving. Our focus remains on hands-on process understanding, in-house analytical capability, and honest communication with both Fortune 500 manufacturers and university research teams. From esterification know-how to smart logistics, each improvement tells a story of challenges faced and lessons learned on the production line.

    Offering a truly reliable L-Glutamic Acid 5-Methyl Ester takes more than sourcing ingredients or completing paperwork. It comes from a manufacturing process tuned by long experience—the sort of lessons you only gain by owning the results, day in and day out, batch by batch.