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L-Homocitrulline

    • Product Name L-Homocitrulline
    • Alias l-2-aminoadipic acid semicarbazide
    • Einecs 211-519-9
    • 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

    186494

    Product Name L-Homocitrulline
    Cas Number 1190-90-4
    Molecular Formula C7H14N2O3
    Molecular Weight 174.2 g/mol
    Appearance White to off-white crystalline powder
    Solubility Soluble in water
    Melting Point 215-220°C (dec.)
    Purity Typically ≥98%
    Ph 1 Solution 5.5-7.0
    Storage Temperature 2-8°C
    Iupac Name (S)-2-Amino-5-(carbamoylamino)pentanoic acid
    Synonyms Homo-citrulline, Nδ-Carbamoyl-L-ornithine
    Optical Rotation [α]D20 +13° to +15° (c=1, H2O)
    Shelf Life 2 years under proper storage

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

    Packing & Storage
    Packing L-Homocitrulline is supplied in a sealed amber glass vial containing 1 gram, labeled with product details and safety information.
    Shipping L-Homocitrulline is shipped in a tightly sealed container to protect it from moisture and contamination. It is typically transported at room temperature, unless otherwise specified, and is accompanied by a Material Safety Data Sheet (MSDS) for safe handling. Proper labeling and compliance with chemical shipping regulations are ensured.
    Storage L-Homocitrulline should be stored in a tightly sealed container, protected from light and moisture. Keep it at a temperature between 2-8°C (refrigerated). Ensure the storage area is well-ventilated and away from incompatible substances. Properly label the storage vessel, and handle the compound using appropriate personal protective equipment to avoid contamination or degradation.
    Application of L-Homocitrulline

    Applications of L-Homocitrulline in Industrial Manufacturing

    L-Homocitrulline is a specialty amino acid with precise structural and chemical characteristics, enabling its targeted use in advanced pharmaceutical synthesis, peptide engineering, biochemical assay development, and specific nutraceutical formulations. Our production process ensures consistent quality and compliance for critical industrial applications, meeting rigorous downstream requirements for purity, traceability, and batch reproducibility.

    1. Advanced Peptide Synthesis for Pharmaceutical Research

    Peptide manufacturers frequently incorporate L-Homocitrulline for site-specific substitution during solid-phase synthesis of research-grade peptides and peptidomimetics. Its side-chain modification properties allow for the modeling of post-translational modifications, enabling studies of protein–protein interactions and immune response mechanisms. Use necessitates attention to synthesis step integration, purity controls, and documentation of amino acid origin for clinical research use.

    Industry compliance standards

    • ICH Q7: Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • Ph. Eur. (European Pharmacopoeia) monograph requirements
    • USP General Chapter <1045> for Biologics
    • ISO 9001:2015 Quality Management Systems

    Typical usage ratio

    • Site-specific substitution: 1–5% molar equivalence of total amino acids, depending on peptide sequence and desired pharmacological properties. Researchers adjust the proportion based on mimetic modification needs.

    Downstream process integration

    • Direct introduction into the Fmoc-based or Boc-based solid-phase peptide synthesis (SPPS) cycle after chain elongation, followed by coupling and deprotection, with in-process HPLC monitoring for sequence verification.

    Final product types

    • Synthetic linear or cyclic peptides for bioscience research
    • Antigenic peptide libraries for immunology assays
    • Modified peptide standards for LC-MS calibration
    • Lead compounds for early-stage drug discovery

    2. Biomedical Raw Material for Enzyme Substrate Kits

    Diagnostic kit producers use L-Homocitrulline to prepare analytical substrates that measure specific enzyme activities, such as ornithine transcarbamylase or carbamoyl phosphate synthase. Its chemical reactivity allows for consistent, quantifiable colorimetric or fluorometric assay outputs, making it indispensable in clinical and bioanalytical laboratories relying on standardized procedures and reagent traceability.

    Industry compliance standards

    • ISO 13485:2016 Medical Devices – Quality Management Systems
    • FDA 21 CFR Part 820 (Quality System Regulation for Medical Devices)
    • EU IVDR (In Vitro Diagnostic Medical Devices Regulation) 2017/746
    • CLSI (Clinical and Laboratory Standards Institute) guidelines for assay validation

    Typical usage ratio

    • Buffer reagent preparation: 0.05–0.5 mM final concentration in diagnostic substrate solution, optimized by enzymatic assay performance and sensitivity requirements.

    Downstream process integration

    • Dispensing into pre-measured single-use assay vials after buffer preparation and pH adjustment stage, with subsequent lyophilization or stabilization in kit components.

    Final product types

    • In vitro diagnostic testing kits for metabolic disorders
    • Enzyme activity assay panels in clinical chemistry
    • Reference reagents for academic research laboratories
    • Routine quality control standards for hospital laboratories

    3. Functional Ingredient in Specialized Human Nutrition and Medical Foods

    Formulation experts in the clinical nutrition sector select L-Homocitrulline for enteral or oral medical food products aimed at supporting rare metabolic disorders and tailored nutritional therapies. Its role as a non-proteinogenic amino acid provides metabolic precursors without adding to nitrogen burden, and accurate control of additive levels ensures patient safety and compliance with dietary guidelines set for medical nutrition products.

    Industry compliance standards

    • Codex Alimentarius – Guidelines on Foods for Special Medical Purposes (CODEX STAN 180-1991)
    • EU Regulation (EU) No 609/2013 – Food Intended for Infants and Special Medical Purposes
    • US FDA – 21 CFR Part 104 (Nutritional Quality Guidelines for Foods)
    • GMP (Good Manufacturing Practice) for food manufacturing (FSSC 22000 or ISO 22000:2018)

    Typical usage ratio

    • Formulation range: 50–500 mg per serving (0.005–0.05% w/w) depending on targeted disease state and consultation with clinical nutritionists for patient-specific dosing protocols.

    Downstream process integration

    • Dissolution into liquid base or blending with powdered matrices during the premixing stage; followed by homogenization and sterile packaging under nitrogen to maintain chemical stability.

    Final product types

    • Oral and enteral supplements for metabolic disorders
    • Medical nutrition drinks for urea cycle disorders
    • Specialized medical foods for clinical use
    • Amino acid-modified dietary powders

    4. Analytical Calibration Standard in Bioanalytical Chemistry

    Bioanalytical laboratories procure L-Homocitrulline as a calibrant and internal standard for quantitative LC-MS/MS and HPLC assays targeting amino acid profiling or metabolic flux analysis. Its defined chromatographic properties and absence from most endogenous human matrices allow for precise internal controls and method validation under regulatory frameworks governing laboratory-developed tests.

    Industry compliance standards

    • ISO/IEC 17025:2017 General requirements for testing and calibration laboratories
    • FDA Guidance for Bioanalytical Method Validation (2018)
    • OECD Principles of Good Laboratory Practice (GLP)
    • USP Chapter <621> Chromatography

    Typical usage ratio

    • Standard curve preparation: 1–10 μM final concentration in assay buffer; internal standard: 10–100 μM spiking concentration, determined by method sensitivity and instrument detection limits.

    Downstream process integration

    • Addition into sample matrices or calibration standards following sample extraction and protein precipitation; routine use in method setup and cross-laboratory proficiency testing.

    Final product types

    • Amino acid profiling test kits
    • Certified reference materials for clinical and research labs
    • Ready-to-use internal standards for LC-MS/MS quantification
    • Proficiency testing panels for lab accreditation programs

    5. Biochemical Research Reagent for Protein Structure and Function Studies

    Academic and corporate R&D groups utilize L-Homocitrulline when engineering recombinant proteins or synthetic analogues where side-chain modification or charge alteration is required to investigate structure-function relationships, enzyme specificity, or antibody epitope mapping. This application demands stringent raw material documentation, ultra-low bioburden, and trace element analysis to maintain experiment validity.

    Industry compliance standards

    • GLP (Good Laboratory Practice) as per OECD regulations
    • ISO 9001:2015 Quality Management System (research reagent grade)
    • NIH recombinant DNA guidelines for laboratory use
    • Lot-specific Certificate of Analysis and Material Traceability

    Typical usage ratio

    • Site-incorporation: generally 0.1–2% of total amino acid pool for in vitro translation or refolding studies; concentration tailored to experimental design and detection limits.

    Downstream process integration

    • Direct solution blending for site-directed protein modification, or coupling at the resin-binding step during chemical protein synthesis; followed by purification using dialysis or chromatography.

    Final product types

    • Model proteins for structure determination (NMR, crystallography)
    • Synthetic antigens for immunochemical screening
    • Reference proteins for post-translational modification analysis
    • Academic research reagents distributed via institutional core facilities
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    Competitive L-Homocitrulline prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    L-Homocitrulline: A Manufacturer’s Perspective on Reliability and Quality

    Unlocking the Potential of L-Homocitrulline in Modern Research and Industry

    Twenty years in the chemical manufacturing sector teaches a company the weight of every batch, the impact of a single impurity, and the difference between satisfaction and disappointment on the customer’s end. We have watched the role of amino acids shift from purely academic research to critical components in evolving therapeutics and diagnostics. Among these, L-Homocitrulline stands out for its unique profile and growing demand across various fields. From fermentation tanks to chromatographic purification lines, each gram reflects countless hours of attention and refinement. We know that users depend on every molecule meeting the standards that make research and production repeatable—there are no shortcuts, and trust is built in the details.

    What Sets L-Homocitrulline Apart

    L-Homocitrulline belongs to the family of non-proteinogenic amino acids. Its structural similarity to L-citrulline and L-ornithine offers researchers a bridge to investigate the urea cycle and the biochemical pathways connected to nitrogen metabolism. A single extra methylene group sets L-Homocitrulline apart from L-citrulline, yet this subtle change influences both biological activity and analytical characteristics. This is not simply a variant for curiosity’s sake; laboratories tracking metabolic markers, or investigating autoimmune phenomena like rheumatoid arthritis, need the reliability of well-characterized material.

    Several years ago, investigators examining the role of homocitrulline in carbamylation and post-translational modification had to depend on variants of inconsistent purity or uncertain provenance. That uncertainty slows down progress. The quality of homocitrulline changed as soon as manufacturing entered the conversation — when the producer pays attention to crystal form, moisture content, trace ions, and more, consistent output becomes attainable. Unlike commercial reagents sourced through middlemen, a manufacturer’s product must survive the scrutiny of both quality auditors and the customer’s most demanding protocols. Transparency in supply fosters scientific progress and commerce alike.

    Manufacturing with Uncompromised Transparency and Quality

    We have invested in high-performance liquid chromatography (HPLC) and mass spectrometry at the heart of our quality control protocols to ensure that our L-Homocitrulline exceeds 99% purity on a lot-to-lot basis. Each batch runs through a tailored isolation process, using synthetic routes designed to minimize racemization and deliver an uncompromising level of stereochemical fidelity. During synthesis, byproduct profiles are monitored in real time; this vigilance eliminates difficult-to-remove impurities and keeps contamination below quantifiable limits. We learned the hard way that unchecked batches risk the accumulation of byproducts—often only apparent after sensitive research applications showed unexpected results.

    Every scientist using our amino acids expects transparency, not just a technical document or a vague certificate of analysis. We provide spectral data down to trivial side peaks, so the end user decides what meets their stringent criteria. Trace metals, residual solvents, moisture content—each parameter arises from thorough testing rather than a checklist mentality. Our team finds it far more valuable to address a tough question directly from a pharmaceutical researcher and understand what keeps research directors awake at night. Share your concerns and we explain, not deflect.

    Through our vertical integration, we maintain security of supply, retesting retained samples after years on the shelf to ensure nothing has shifted. Our facility tracks raw materials back to their origin and regularly updates processes as standards evolve. There are no stories of lost lots, gray-market sourcing, or rebranding under different names. This is our chemistry and our name—held to our standards, not diluted by abstraction.

    Easy Lab Integration and Handling: The Difference of Direct Manufacturing

    Direct involvement in synthesis allows us to optimize product form for the bench: a uniform crystalline powder, free of problematic clumps or inconsistent sizing. For L-Homocitrulline, solubility is crucial—especially for high-concentration solutions. Customers often note our amino acid dissolves quickly, giving clear solutions with minimal agitation, which removes a regular headache from cell culture preparation and analytical workflows. That refinement results from direct feedback—researchers told us about challenges with sluggish solubilization and micro-particulates, so we adjusted our drying protocol and milling parameters.

    Odor, flow, and hygroscopicity often distinguish our offering from others. Off-odors signal residual precursors or degradation that crept in during inadequate handling. We built routines that narrow the window from synthesis to sealed packaging. Every vessel, filter, and handle that contacts the product gets tracked and cleaned. Once the product is packaged, rapid sealing in multi-layer containment guards against ambient humidity, which could trigger slow degradation or caking. Users opening a fresh bottle notice the difference right away—no mustiness, no inconvenience, just reliable chemistry. This is the work only a manufacturer truly controls, not passed off down the supply chain.

    Applications Underpinned by Reliability

    Work in medical diagnostics, especially biomarker research for conditions like chronic kidney disease and autoimmune disorders, relies on L-Homocitrulline. Each clinical study has zero tolerance for unexplained variance between lots. Many contract research organizations and pharmaceutical firms specify only manufacturer-direct amino acids for method development because the origin and batch history become essential for regulatory documentation. If you supply only a generic “meets spec” material, delays and questions compound on clinical timelines.

    Peptide synthesis is another area demanding exacting standards. Even a trace of D-isomer or a handful of unidentified impurities can derail synthesis yields and lead to expensive purification bottlenecks. We sharpened our own peptide workflow internally to catch problems ahead of distribution—running test couplings, confirming optical rotation, and validating that each lot behaves similarly in automated synthesizers. This level of scrutiny distinguishes a manufacturer’s approach to service from a mere bottler.

    Outside medical research, food and nutritional companies study L-Homocitrulline as a potential supplement when exploring new metabolic pathologies. The strictest food regulations require meticulous documentation and batch retention for recall protocols. We archive comprehensive data because nutrition scientists, regulatory officials, and laboratory auditors expect the same granularity in a specialty amino acid as with legacy ingredients. Direct engagement with our customers showed us food sector demands have little tolerance for vague documentation, so we shaped our record-keeping accordingly.

    Comparisons to Standard Amino Acids and Alternative Sources

    A scientist choosing between L-citrulline, L-ornithine, and L-Homocitrulline sees more than a small structural difference—the applications and analytical requirements can diverge sharply. L-citrulline, a well-known compound in sports supplementation and urea cycle research, rarely presents supply chain uncertainty. Mass production through fermentation has made L-citrulline one of the most available nonessential amino acids worldwide. However, its closely related cousin, L-Homocitrulline, often trails in both awareness and available information. Some suppliers treat it as a specialty product, shipping through intermediaries or bottlers lacking accountability for quality issues. Unlike generic or “commodity” amino acids, every extra handling step increases the risk of contamination or mislabeling.

    With L-Homocitrulline, manufacturing roots matter. Intermediaries sometimes blend off-spec stock, or simply relabel products sourced from secondary or tertiary origins, muddying the science. The gap between direct-from-manufacturer batches and commodity offerings widens, especially where regulatory filings or method development call for full supply chain transparency. Customers facing strict regulatory scrutiny resist vague certificates or incomplete spectra, so we prioritize the clearest, traceable documentation available. Knowledge from years of handling structural analogues of arginine, ornithine, and citrulline put us in the unique position to flag subtle impurities or cross-contamination before they reach the customer.

    Meeting Future Demands: Sustainability, Compliance, and Service

    Sustainability dominates conversations both inside the boardroom and out on the plant floor. As manufacturers, we answer not only to immediate regulatory requirements but also to the changing expectations for green chemistry and responsible stewardship. Sourcing every reagent from trusted, fully audited suppliers forms the backbone of our work. We scrutinize the waste profiles of every synthesis step, weed out solvent systems that burden downstream processing, and regularly review our supply inputs for their own sustainability footprints.

    Our environmental stewardship focuses on minimizing resource use, reducing emissions, and storing hazardous intermediates responsibly. Every kilogram of L-Homocitrulline leaving our facility is tracked from raw material intake to outbound shipment. Scrutiny from third-party auditors and customer-led quality surveys keeps us honest. Feedback from our partners led to more efficient water recycling, improved waste neutralization, and an updated hazardous materials training curriculum across our workforce.

    The modern amino acid market faces pressure from ever-evolving regulatory demands. Cosmetic, pharmaceutical, and food industries all require robust record-keeping, clear documentation, and access to supply histories that withstand deeper audits. No one benefits when a manufacturer hides information, deflects blame, or avoids customer input. Transparency reduces downstream risk, fosters scientific confidence, and speeds regulatory approval. Decades spent navigating these requirements teach one lesson: close, open relationships between maker and user outperform obscurity every time.

    Tackling Real-World User Challenges

    Partnership goes beyond shipping vials and bulk containers. Our direct engagement with biochemical and medical researchers helps us understand persistent challenges: moisture uptake during extended storage, performance drift between different synthesis batches, or solubility irregularities in scaled workflows. We respond with iterative fixes, not canned emails or hand-off to distant support lines. Customers tell us about their protocols and bottlenecks. In turn, we adjust the product or packing process until they gain the reliability they need for grant-funded studies, large-scale experiments, or GMP manufacturing.

    Batch-specific technical support helps solve urgent issues. If a lab in Japan runs into unexpected insolubility, or a production manager in the US spots discoloration, our chemists investigate with the same urgency as if it occurred in our own facility. Internal stress tests have allowed us to anticipate and resolve potential shipping-induced changes, like caking after intercontinental transit through humid climates. We also support repeat users who require dependable re-ordering, with batch reserve policies and advance notification for any process change. This minimizes supply shocks for ongoing projects and large clinical programs.

    Drawing from experience, we avoid simplifying away persistent issues. Not every complaint has an immediate answer, but ongoing investments in equipment, people, and protocol refinement drive resolution over the long haul. Our investment in cold storage, data logging, and shipment tracking arose from user feedback, not outside compliance mandates. If a challenge emerges, trust is built in the direct response and follow-through.

    Innovation and Process Control—For Today’s and Tomorrow’s Needs

    The pace of change in biomedical and analytical chemistry never slows down. New techniques, tighter regulations, and unforeseen demand surges test every manufacturer. We dedicate ourselves to process control and data stewardship because every update--from filtration upgrades to automation within crystallization—addresses real gaps. Quality runs deeper than an assay result or a purity certificate. Our response as a manufacturer is simple: face every challenge head-on, invest in methodical improvements, and measure outcomes by customer satisfaction as much as regulatory compliance.

    Feedback from innovators at the leading edge—peptide synthesis, diagnostics, novel therapeutic research—guides our upgrades. We sanction pilot batches for custom purification, and regularly schedule internal “stress-test panels” to anticipate both field and lab conditions. Whether a customer needs kilogram-scale runs or milligram lots for first-in-human testing, scrutiny never wavers. That’s our signature in the market: assurance through direct responsibility and openness.

    Concluding Thoughts: L-Homocitrulline from a Manufacturer’s Hands

    Supplying L-Homocitrulline goes beyond meeting minimum specs. It means tracing every raw material, setting higher standards for purity, and earning trust with each order. We have seen the harm inconsistent supply causes—delays, failed syntheses, ambiguous research papers. That’s why we stick to the details, from bottle-sealing procedures to real-time lot traceability that enables confidence for customers worldwide.

    Amino acids like L-Homocitrulline don’t operate in isolation. Synthetic routes, instrumentation limits, and shipment climates all shape whether scientific and manufacturing goals are met. We build long-term partnerships based on shared goals—clear chemistry, dependable logistics, and transparent post-sale support. In the hands of committed scientists, every batch of L-Homocitrulline is more than a commodity. It’s a tested tool—traceable, reliable, and produced with the concrete experience only a hands-on manufacturer can provide.