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6-Azauridine

    • Product Name 6-Azauridine
    • Alias 6-Azauridine hydrochloride
    • Einecs 204-105-9
    • 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
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    Specifications

    HS Code

    704175

    Chemical Name 6-Azauridine
    Cas Number 59-14-3
    Molecular Formula C9H12N4O5
    Molecular Weight 256.22
    Synonyms 6-Aza-uridine; Azauridine; NSC 368390; NSC 4971
    Appearance White to off-white crystalline powder
    Solubility Soluble in water
    Purity Typically ≥98% (HPLC)
    Storage Temperature 2-8°C (Refrigerated)
    Usage Antiviral and antineoplastic research agent

    As an accredited 6-Azauridine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The 6-Azauridine is supplied in a sealed amber glass vial, containing 1 gram of white crystalline powder, labeled for laboratory use.
    Shipping 6-Azauridine is shipped in tightly sealed containers, protected from light and moisture, to ensure stability and safety. Packaging complies with chemical transport regulations, including labeling for hazardous materials. Shipment is handled by certified carriers with documentation, and precautions are taken to prevent extreme temperatures or physical damage during transit.
    Storage 6-Azauridine should be stored in a tightly closed container, protected from light and moisture. Store at 2-8°C (refrigerated conditions). Keep away from incompatible substances such as strong oxidizing agents. Ensure adequate ventilation in the storage area and avoid prolonged exposure to air. Proper labeling and secure placement are essential to prevent accidental misuse or contamination.
    Application of 6-Azauridine

    Applications of 6-Azauridine in Industrial Manufacturing

    6-Azauridine is a specialty chemical intermediate used in several B2B industrial segments, primarily in pharmaceutical manufacturing, nucleoside analog synthesis, and research reagent production. As a direct manufacturer, we provide consistent quality control and technical documentation to support compliance in regulated sectors. Below is a detailed breakdown of its principal applications, with specific integration into customer processes, compliance frameworks, formulation ratios, and the range of certified end products.

    1. Antiviral API Intermediate Synthesis

    Pharmaceutical manufacturers use 6-Azauridine as a nucleoside analog precursor in the creation of active pharmaceutical ingredients (APIs) for antiviral medications. The material enters at the nucleoside modification stage, facilitating the selective inhibition of viral RNA synthesis. Downstream process engineers incorporate it directly into site-specific glycosylation reactions, following strict GMP protocols. Adjustments in the molar ratio account for batch scale and desired yield, validated through in-process HPLC and end-point QC. Facility engineers integrate 6-Azauridine with solvent systems tailored for cleanroom synthesis and API isolation, resulting in high-purity intermediates for finished antiviral drugs.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice (GMP) for Active Pharmaceutical Ingredients
    • US Pharmacopeia (USP) and European Pharmacopeia (EP) for starting materials
    • FDA 21 CFR Part 211 for finished pharmaceuticals
    • ISO 9001:2015 Quality Management for supply chain control

    Typical usage ratio

    • 0.15 – 0.45 molar equivalents per final API batch, adjusted by target conversion rate and process route

    Downstream process integration

    • Charged during nucleoside coupling or glycosylation stage
    • Followed by hydrogenation and protected group removal
    • Undergoes purification via crystallization or preparative chromatography
    • Tested by MS and NMR for structural confirmation before API combination

    Final product types

    • Finished antiviral drugs (e.g., investigational therapies targeting Flaviviridae or other RNA viruses)
    • Bulk pharmaceutical intermediates for contract manufacturing organizations (CMOs)
    • Formulated tablet and injectable dosage forms
    • Export APIs for regulated foreign markets

    2. Oncology Research Chemical Development

    6-Azauridine serves as a core substrate in the synthetic routes for investigational antimetabolites used in preclinical oncology studies. Industrial R&D labs employ it during the synthesis phase for candidate selection against uridine metabolism pathways implicated in tumor proliferation. Researchers dose the compound into reaction streams under controlled atmospheres, with process chemists monitoring byproduct formation and intermediates by HPLC and LC-MS. The ratio of 6-Azauridine depends on structure-activity relationship (SAR) studies and the required throughput for each candidate series. Manufacturers supply analytical-grade materials with full batch traceability, supporting downstream conversion and purification toward preclinical-grade chemicals.

    Industry compliance standards

    • OECD Good Laboratory Practice (GLP) for research substances
    • ISO 17025 for analytical lab calibration
    • Material supplied to organizations registered under local chemical safety management regulations (e.g., REACH, TSCA)
    • Internal QA/QC procedures validated by customer audit

    Typical usage ratio

    • 10–25% w/w relative to other nucleoside substrates per research batch, adjusted for synthetic strategy and conversion efficiency metrics

    Downstream process integration

    • Used in the initial nucleoside modification or as a core for azapyrimidine ring functionalization
    • Integrated into SAR optimization cycles by division chemists
    • Undergoes parallel library synthesis and intermediate pooling
    • Processed for column purification before efficacy screening

    Final product types

    • Antineoplastic lead compounds for cytotoxicity screening
    • Advanced intermediates for oncology small molecule libraries
    • Chemical tool compounds for in vitro and in vivo cancer model studies
    • Outlicensed preclinical candidates for pharmaceutical research sponsors

    3. Diagnostic Reagent and Nucleoside Analog Kit Production

    In the in vitro diagnostics (IVD) sector, manufacturers incorporate 6-Azauridine into reagent components for RNA virus detection assays and as a spike-in standard for nucleoside-metabolism-based test kits. Production chemists prepare stock solutions in certified facilities, monitoring solubility and stability for extended shelf life under controlled humidity. Technicians fine-tune concentrations to minimize false positives in panel-based diagnostics, using validated blend ratios in accordance with quality system metrics. The compound passes through sterile filtration before bottling into diagnostic kit vials or lyophilization for long-term storage.

    Industry compliance standards

    • ISO 13485:2016 Quality Management for medical devices including IVDs
    • US FDA 21 CFR 866 for immunological test systems
    • IVDD/IVDR for CE-marked in vitro diagnostic reagents in the EU
    • Applicable CLIA and CAP inspection checklist for US labs

    Typical usage ratio

    • 0.01–0.08 mg/mL in diagnostic reagent mixture, adjusted based on assay linearity and sample matrix compatibility

    Downstream process integration

    • Blended into master reagent solution prior to sterile filtration
    • Aliquoted by automated lines into IVD kit vials or reagent wells
    • Subject to QC release tests for lot-to-lot uniformity and shelf life
    • Packaged with usage instructions for laboratory end-users

    Final product types

    • Commercial viral RNA detection assay kits
    • Reference standards for nucleoside-based diagnostics
    • Custom research reagent kits for CRO and academic use
    • OEM bulk quantities for diagnostic product assembly

    4. Nucleic Acid Synthesis Reference Material Production

    Specialty reference material suppliers use 6-Azauridine as a calibration standard or process spike in nucleic acid manufacturing workflows. These standards validate instrument performance for HPLC, LC-MS, and NMR analyses in quality control laboratories of nucleoside and oligonucleotide synthesis operations. Process engineers prepare working solutions directly from certified lots, determining concentration by gravimetry and titration to meet SOP traceability. The adjustment of spike levels accounts for matrix effects and sensitivity of analytical platforms, ensuring reproducibility of performance testing across sites and over multiple campaigns.

    Industry compliance standards

    • ISO 17034 for reference material producers
    • ISO/IEC 17025 for analytical test methods in downstream QC labs
    • Adherence to compendial specifications for nucleic acid chemistry (e.g., USP General Chapters <621>, <1225>)
    • GLP documentation for batch certificate and method validation

    Typical usage ratio

    • 0.05–0.20 mg/mL in calibration standard solution, refined to instrument detection limits and matrix signal-to-noise requirements

    Downstream process integration

    • Dissolved in analytical-grade solvents immediately before equipment calibration
    • Used to verify accuracy and precision of HPLC, MS, and CE instruments
    • Blends prepared fresh for each QC batch verification procedure
    • Subject to cross-check with primary reference standards

    Final product types

    • Nucleoside reference standard solutions for analytical laboratories
    • Instrument calibration kits for pharmaceutical QC
    • Secondary reference lots for nucleic acid contract manufacturers
    • Performance evaluation materials for accredited third-party labs
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    Certification & Compliance
    More Introduction

    6-Azauridine: Quality, Consistency, and Real-World Experience from a Dedicated Manufacturer

    Understanding 6-Azauridine: Our Experience in Bringing Science into Practice

    All of us who have spent years in chemical manufacturing know that some products matter more than others. 6-Azauridine stands out in our portfolio as more than just another fine chemical; this compound reflects decades of steady improvements, real investment in technical expertise, and countless hours refining post-synthesis processing. In the field, researchers and manufacturers work with limited budgets and specific requirements, and we consistently hear from partners about the need for a supplier who understands the difference between “good enough” and genuinely reliable material. Through our own production and handling, we’ve seen how seemingly small details in the crystallization process, drying, and packaging can shape the usability and stability of 6-Azauridine.

    We produce 6-Azauridine in several grades, focusing predominantly on research and pharmaceutical development applications. The commonly used model, often referenced by structural chemists, features a high purity level, typically at or above 98% HPLC. Batch-to-batch reproducibility always comes up in customer certifications and regulatory filings, so our in-house analytics group routinely profiles impurities, residual solvents, and water content, looking for trends that might not be visible on a certificate of analysis. The raw numbers mean less without context. By sharing production histories and supporting customer audits, we’ve watched researchers gain the confidence they need to move their projects from bench-scale to preclinical or industrial stages.

    Value Delivered Beyond a Specification Sheet

    6-Azauridine, with its molecular formula C9H12N4O5 and CAS number 54-18-8, carries specific weight in pharmaceutical R&D, especially across antiviral and antitumor studies. The challenge often lies in translating catalog data into actual, real-world lab performance. As a direct manufacturer, we don’t just promise purity; we talk openly about side product removal and process controls that keep the degradation of 6-Azauridine to a minimum during shipping and storage. It’s common for bulk labs to request smaller lot packaging, as 6-Azauridine can break down in humid conditions. We invested in moisture barrier packaging and rapid delivery strategies as a direct response to these recurring issues raised by researchers who experienced shelf-life reduction from other sources.

    Our day-to-day experience brings up conversations about filtration steps, lyophilization parameters, and even the nuisance of static charge during transfer. These may sound like process minutiae, but they tell the story of a manufacturer dedicated to empowering scientists, not just moving barrels. Some of the largest inconsistencies we’ve witnessed in the market come from rushed crystal isolation or temperature swings during the final drying stage, leading to product discoloration or lower yields for process chemists. We learned long ago that keeping a tight grip on each step–especially solvent switching and washing–pays dividends in the final vials leaving our facility.

    Difference from distributor-supplied material appears during routine quality audits. Customers have brought other vendors’ lots into our lab, asking why melting points differ or why thin-layer chromatography spots change color after a week. Much of this tracks back to the trace aldehyde contaminants and minor isomers that build up during non-optimized synthesis. Our team constantly gathers feedback from those handling 6-Azauridine under lab stress–coolers breaking, benchtop humidity rising, unplanned delays before use. Hard-earned experience proves that investing in upstream intermediate quality and downstream packaging delivers real value to chemists working against tight deadlines.

    Supporting Research Applications Through Hands-On Service

    Medical advancement depends on a reliable supply of specialty chemicals, and 6-Azauridine remains in demand due to its broad role across nucleoside analog development. We have watched its application stretch from a simple building block in nucleic acid chemistry into diverse territory, including cytotoxicity screening, enzyme inhibition, and antiviral screening projects. It interests both established institutions and emerging R&D labs running proof-of-concept studies for grant applications. For direct users, cost per experiment matters, but the risk of batch failure or variable impurity profiles matters more in the long run. Our feedback channels remain open, and our technical team shares process know-how directly with customer labs, skipping third-party uncertainty.

    Some research requires custom particle sizes, tight pH control in solution, or alternate hydration forms. Our production line has evolved to allow flexible isolation and drying steps, enabling us to work in partnership with scientists for pilot-scale or small-batch requests. Large chemical traders rarely have the setup to switch between anhydrous and trihydrate forms without risking cross-contamination. From raw material procurement down to final lot analytics, each step is guided by past incidents, continuous learning, and a steady commitment to transparency.

    Where Product Quality Tells Its Own Story

    Over decades, we have traced the most common questions about nucleoside analogs to a few core issues: impurity management, compatibility in downstream synthetic steps, and storage reliability. In use, 6-Azauridine’s performance varies not just from the synthetic route taken but also from the micro-choices during isolation and purification. Early on, we saw that using untreated solvents or unreliable filtration can introduce trace metals or endotoxins that risk whole batches in sensitive biological applications. Our approach prioritizes pharmaceutical-grade handling, validated through both in-lab bioassays and external certifications.

    We invite peer review of our analytical data and have learned to expect scrutiny from regulatory affairs and independent auditors. This kind of open-door policy has sharpened our own understanding of how 6-Azauridine interacts under harsh conditions: repeated freeze-thaw cycles, extended light exposure, and mechanical agitation. Through continuous collaboration with researchers, we identify subtle differences that might not seem obvious–how minor particle size shifts affect dissolution rates or how surface irregularities impact downstream coupling reactions.

    Teachers and new researchers often ask what sets 6-Azauridine from our plant apart from off-the-shelf material purchased through catalog suppliers. Clear differences show up during high-stakes experiments, especially under tightly controlled synthetic pathways. Minor shifts in impurity levels or trace byproducts translate into variable reaction yields, sometimes derailing entire syntheses. Our batch documentation traces production back to each precursor lot, offering a transparent trail should any doubt or troubleshooting request arise. Unlike traders who buy and repackage stock, our depth sits in the upstream knowledge–knowing the impacts raw input quality and cleanroom best practices bring to the end molecule.

    What Practical Experience Teaches about Handling and Use

    Direct feedback drives change. Researchers using 6-Azauridine in their studies have presented us with scenarios we could not have anticipated. A cell culture laboratory reported that trace acetic acid, carried over from a competitor’s product, dropped their window for successful pulsing by almost three hours. Small changes in residual solvent content seem trivial on a spec sheet, yet their effect compounds over multiple synthetic steps, or worse, shows up as biological noise. For us, these stories shape internal protocols, even altering our cleaning and storage regimens.

    Over time, we learned to package the material in nitrogen-purged containers, minimizing product oxidation and unwanted moisture uptake. Simple lessons–tight sealing, desiccated transport, rapid order fulfillment on temperature-sensitive lots–come directly from repeated interactions with users who faced avoidable spoilage or unexpected batch loss. Sharing these fixes builds credibility and demonstrates that reliability grows through earned trust, not salesmanship.

    Some users told us that switching to our material cut their HPLC troubleshooting time by entire days. Others noted lower foaming during dissolution steps or more dependable chromatographic profiles even weeks after opening. These are not qualities found on data sheets; they show up when products are handled under real-world calendar and storage pressures. Rather than treating each issue as a one-off event, we set up periodic customer site visits and analyst feedback sessions, acting on every suggestion with direct production changes.

    Difference in Approach: Why Manufacturer-Direct Matters

    In the crowded specialty chemicals market, appearances can be misleading. Nearly all catalogs show similar numbers for purity, water content, and other metrics, but repeat buyers realize there’s a sharp gap between manufacturing control and trading. Since we control our own synthesis, wash protocols, and packaging, we avoid the most common pitfalls that come from relabeling or long transit storage. Cold-chain breaks, extended cross-docking, and unknown warehouse conditions generate the risks that end users notice as soon as material touches their lab glassware.

    Direct conversation between chemists leads to real-time problem-solving. If a customer observes a fine deposition in solution or a surprise melting point shift, we investigate the incident with production managers and R&D personnel at once. Every issue, large or small, translates into an evolving checklist for our plant team. This feedback loop gives us the edge for both standard 6-Azauridine grades and custom engineered forms.

    We understand that many resellers and distributors push speed and volume but sidestep specifics on source provenance, air control, or true analytical matching. Over time, end users began approaching us specifically because they had experienced interrupted projects, failed replications, or inconsistent product signatures from unnamed upstream suppliers. With us, there’s no hiding of batch data or reluctance to discuss processing details. Our entire focus remains on knowledge transfer, direct accountability, and outcome-driven adjustments.

    Commitment to Ethical Practices and Responsible Manufacturing

    As a participant in regulated supply chains, we hold environmental and safety standards front and center throughout 6-Azauridine production. The synthesis makes use of multiple steps where hazardous reagents interact with sensitive intermediates; managing waste streams and atmospheric releases requires real investment in equipment and operator training. We invest in containment and solvent recycling because the impacts show up in our own community.

    Documented cleaning procedures and regular health surveillance keep both product purity and staff safety on track. Regulatory inspections and third-party audits have pushed us to raise our baseline practices year after year. We take quality management as much for our own peace of mind as for compliance: solid documentation supports swift response to customer questions or recalls, while robust batch control makes tracing simpler during any future revisions of standards or regulatory expansion.

    Accountability in manufacturing links directly to ethical sourcing. Our raw material partnerships rest on documented transparency, not just paperwork. Over the years, this approach has kept us clear of shortages or contamination cycles that sometimes strike less established suppliers. Without shortcutting safety or environmental compliance, our team produces each lot with locally monitored energy use, onsite effluent control, and routine checks against competing approaches in global manufacturing.

    Trusted Results Gained Through Ongoing Collaboration

    Direct line support matters most for our users. Whether 6-Azauridine moves through early-stage research or scaled-up process development, users want more than one-off answers. Our technical team walks alongside researchers through troubleshooting, confirming results, or adapting production to a new spec. Problems get addressed at their root, not masked by marketing. Regular technical bulletins and open case review sessions help us capture emerging best practices and tailor upcoming lots to what actually makes a difference at the bench.

    Working with academic and industrial partners over years rather than months provides valuable longitudinal insight. We learn which storage approaches extend shelf life for humid climates and which lot volumes fit high-throughput screening projects. This collaboration prevents repeat incidents and saves end users time and material. Our systems adapt so that when demand ramps up or market conditions shift, interruptions don’t leave researchers stranded or experiments under-supplied.

    Ongoing dialogue with regulatory teams helps us anticipate changes in import requirements, labeling needs, or safety classifications, letting us offer pro-active rather than reactive support. Whether helping a small pharma navigate preclinical documentation or a university lab set up first-time storage, we pass on our experience for better science and fewer disruptions.

    Facing Today’s Challenges, Shaping 6-Azauridine’s Future

    External shocks–supply interruptions, global logistics breakdowns, rising regulatory hurdles–hit manufacturers directly and test the real resilience of both product and process. Over the years, we have strengthened in-house reserves of precursor chemicals and diversified our procurement base to protect the reliability of 6-Azauridine output. Robust planning goes beyond spreadsheets; it shows up in the steady hands of operators and the adaptability of our lab managers.

    Logistical investments let us keep lead times short, avoiding the project delays that hamper new discoveries. Where possible, we share insights about storage and handling to help customers extend the life of their inventory, knowing that not all research budgets can flex mid-year. Outreach to young researchers also helps them avoid common pitfalls and develop long-term best practices for nucleoside analog handling.

    Commercial pressure sometimes pushes other suppliers toward easier, lower-cost options. Our commitment keeps us focused on repeatable, user-centered production, even when costs rise. This approach wins loyalty from labs that count on every data point and depend on each batch to perform as expected.

    Conclusion: Why Manufacturing Excellence Matters for 6-Azauridine

    Behind every lot of 6-Azauridine leaving our facility stands a network of specialists–chemists, engineers, QA staff, packagers–whose constant attention and decades of experience set our product apart. Product differences stem not just from numeric purity but from a deep history of real-world testing, responsive adaptation, and a willingness to work side by side with those using our compounds. The result isn’t just a chemical that looks pure in the vial but a building block researchers trust for the highest-stakes steps in both academic and commercial science. Through every process change, product adjustment, and technical discussion, we stay committed to supporting better research outcomes, today and in the future.