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Sodium Aesculin

    • Product Name Sodium Aesculin
    • Alias esculin-sodium
    • Einecs 257-682-5
    • 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

    701150

    Product Name Sodium Aesculin
    Chemical Formula C15H15NaO9
    Molecular Weight 362.26 g/mol
    Cas Number 524-15-2
    Appearance White to off-white powder
    Solubility Soluble in water
    Storage Temperature 2-8°C
    Purity Typically ≥98%
    Application Microbiological media, detection of Enterococci
    Synonyms Esculin sodium salt
    Melting Point 225-230°C (decomposes)
    Ph Value 5.5-7.0 (1% solution)
    Odor Odorless
    Shelf Life 2-3 years (when stored properly)

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

    Packing & Storage
    Packing Sodium Aesculin, 25g, is supplied in a tightly sealed amber glass bottle with a white screw cap and safety label.
    Shipping Sodium Aesculin should be shipped in tightly sealed containers to prevent moisture absorption and contamination. It must be transported at ambient temperature, protected from light and incompatible materials. Appropriate hazard labeling and documentation are required. Ensure compliance with local, national, and international chemical transport regulations to ensure safe and secure delivery.
    Storage Sodium Aesculin should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers. Protect it from moisture and direct sunlight. Store at room temperature, ideally between 15-25°C. Always follow local safety guidelines, and ensure containers are clearly labeled to avoid accidental misuse or contamination.
    Application of Sodium Aesculin
    Purity 98%: Sodium Aesculin with purity 98% is used in microbiological culture media, where it ensures accurate detection of Enterococcus species by fluorescence under UV light. Molecular weight 340.3 g/mol: Sodium Aesculin of molecular weight 340.3 g/mol is used in biochemical assays, where it supports consistent substrate performance for β-glucosidase activity testing. Melting point 238°C: Sodium Aesculin with melting point 238°C is used in pharmaceutical research, where its thermal stability allows reliable incorporation into heat-processed formulations. Particle size <50 µm: Sodium Aesculin of particle size less than 50 µm is used in diagnostic test strips, where it guarantees rapid dissolution and uniform reagent distribution. Stability temperature ≤40°C: Sodium Aesculin with stability temperature up to 40°C is used in transport-sensitive diagnostic kits, where it maintains chemical integrity during storage and shipping. Water solubility 10 g/L: Sodium Aesculin with water solubility 10 g/L is used in bacteriological testing preparations, where it ensures easy preparation and homogeneous mixtures for culture media. UV absorbance 325 nm: Sodium Aesculin characterized by UV absorbance at 325 nm is used in analytical spectrophotometry, where it enables precise quantification during quality control processes. Assay value ≥99%: Sodium Aesculin with assay value greater than or equal to 99% is used in standardized reference materials, where it improves accuracy and reproducibility of experimental results. Shelf life 36 months: Sodium Aesculin with a shelf life of 36 months is used in long-term laboratory reagent storage, where it ensures extended usability and consistent performance.
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    Certification & Compliance
    More Introduction

    Sodium Aesculin: Our Experience in Production and Application

    Our Commitment to Reliable Sodium Aesculin Production

    Manufacturing sodium aesculin from the ground up requires more than a functional reactor and a clean workspace. The process begins with selecting aesculin of proven origin, ensuring each batch reflects the compositional baseline set through years of monitoring by our QC teams. The cross-section of research and daily production shapes every decision. We rely on real-time UV-Vis readings and precise pH controls to keep output consistent. Our operators have learned from trial and error — even minor shifts in water quality or temperature can change yields and clarity. This experience sits at the core of every kilogram we send out of our facility.

    Model and Consistency in Every Batch

    Our sodium aesculin carries the model code SAQ023, stamped directly on product labels to track every batch. Feedback from laboratory and industrial microbiologists influenced both the granularity and solubility profile for this specification. We uphold strict benchmarks for purity, translucency when dissolved, and minimal particulate load. Daily batch chromatography acts as a guardrail, highlighting any deviation that could compromise our standards. If the spectrum drifts outside optimal absorbance, our team intervenes instead of letting flawed material leave the line. This direct responsibility saves hours of troubleshooting downstream for customers.

    Specifications Crafted for Precision

    We maintain sodium aesculin at a purity not dipping below 98%, verified through regular HPLC assessment. Granule sizing comes from multiple sifting passes, which assures easy dissolution in typical laboratory glassware and reactor setups. Solubility meets a minimum threshold of 10g in 100mL water at 20°C, sparing users the frustration of excess stirring or unexpected settling. Loss on drying sits below 2%, keeping hygroscopicity in check. We learned, especially during humid months, that even tiny variances in residual moisture complicate dosing for those running automated liquid handlers or high-throughput analyzers.

    Applications: Beyond Plate Media

    Microbiology labs use sodium aesculin for more than just aesculin hydrolysis tests. Every manager who’s switched from bulk aesculin to our sodium aesculin underscores the benefit: quicker, clearer reactions when screening for Enterococcus, Aerococcus, and occasionally some strains of Listeria. We field regular calls from production managers in beverage and dairy plants. Many share stories about the clarity of results during water and ingredient screening, where ambiguous test colors can stall a whole lot. Our sodium aesculin sharpens colony halo visibility and supports reliable differential readings. It is commonly poured into bile aesculin agar, but in many facilities, technologists have reported improved snap times during colony identification following substitution for generic aesculin sources. In our own test lab, sodium aesculin supported accurate detection within 24 hours for challenging sample matrices like untreated dairy effluent and high-particulate broths.

    Researchers across diagnostic microbiology, pharmaceutical development, and environmental monitoring trust sodium aesculin to produce unambiguous, reproducible hydrolysis. Our in-house application team regularly develops control curves for clinical reference labs, dialing in baseline halo sizes for every new lot — this allows those running QC at scale to fine-tune pass-fail cutoffs without second-guessing reactivity. For teaching labs in universities, sodium aesculin’s reliability translates to fewer repeat practicals and more confident student assessments. We've delivered bulk shipments directly to regional agro-food analysis labs, where quick enterococci checks keep bottling lines moving and out-of-spec incidents to a minimum.

    Differences from Other Sources and Grades

    In the early years, a handful of customers tried importing sodium aesculin from third-party resellers. The main complaints returned to us: drying issues, broad color bands after hydrolysis, and variability in crystal size that led to unpredictable dissolving times. Unlike many suppliers who simply repack bulk aesculin, as the manufacturer we source and synthesize from the raw glucoside, guaranteeing full traceability and the ability to adjust parameters as needed. Cheap substitutions sometimes mask lower yields or bind up free aesculin, weakening results or introducing interfering byproducts. Our QA teams check all incoming lots of the phenolic extract, confirming chemical identity through IR and MS rather than relying on paperwork alone.

    Our sodium aesculin stands apart through smaller and more uniform granules. That brings rapid and complete solubilization, lowering the risk of precipitates. We've heard from several clients using European and South Asian sodium aesculin who struggled with incomplete hydrolysis reactions, sometimes losing whole runs to cloudy backgrounds or residue. Our batches maintain both solubility and clarity at room temperature, without the need for aggressive heating or magnetic stirring, thanks to finely tuned recrystallization and drying cycles. Several QC managers at beverage quality labs found that switchovers to our model led to sharper reaction fronts and reduced rework rates in their water and ingredient validation screens.

    Generic aesculin, either unbuffered or in less stable sodium forms, often risks tailing or stain carry-over, especially at pH extremes. By carefully neutralizing the aesculin through titration and combining with premium-grade sodium carbonate, we create sodium aesculin that resists rapid degradation during both storage and assay preparation. We monitor for both microbial and chemical contamination, as lower-grade products sometimes transport trace alkali, fungal spores, or polymeric binders that can alter colony morphologies or hydrolysis rates in plate media. Our technical support once worked alongside a hospital infectious disease lab to troubleshoot spurious positives in vancomycin-resistant enterococcus surveillance; the root cause traced to an off-brand aesculin source with a visible yellow tinge and extraneous peaks on the HPLC readout.

    Challenges and Solutions in Manufacturing Sodium Aesculin

    Making sodium aesculin is not just about following a chemical recipe. Every handler from our blending stations to final packaging watches for subtle shifts. Water content, temperature profiles, and pH levels all play a part in the final outcome. For example, premature drying or improper pH shifts can entrap impurities or lead to inconsistent product, which shows up in unreliable assay outcomes down the chain.

    Some years ago, shortly after a local power fluctuation, our drying ovens failed mid-cycle. The partially processed batch revealed crystallization faults, which immediately skewed dissolution tests. Rather than rush replacement material out, our team spent two days recalibrating every oven and reassessing every storage bin. This commitment pays off in fewer customer complaints and builds trust in our output.

    Industry-wide, sodium aesculin quality bounces due to raw supply bottlenecks, inconsistent intermediary quality, and sometimes just inattention in bulk synthesis. Direct manufacturing control avoids these pitfalls. We secure raw aesculin supplies months in advance, verify via analytics, and insulate production from seasonal disruptions. On rare occasions where whole-lot deviations surfaced, we ground-shipped replacements and absorbed the loss to keep client labs running on schedule. We stand by every kilogram shipped, not just as a promise but through daily logs of yield, color, and purity.

    Supporting Evolving Laboratory Needs

    Over decades, diagnostic media have grown more sophisticated, and so has the criticality of test reagents. Sodium aesculin now fulfills roles far beyond canonic hydrolysis tests. Recent years saw the rise of automated and miniaturized testing equipment. Labs that used to manage with large, hand-prepped batches now run dozens or hundreds of microplates in parallel. Small differences in reagent solubility or reactivity now magnify downstream, either helping or complicating high-throughput workflows. Working with automation specialists, we’ve tuned our blend for complete solubility in small volumes and avoidance of foaming under agitation, eliminating unnecessary troubleshooting in pipetting robots.

    Likewise, the growth in veterinary and agro-food testing for waterborne enterococci prompted us to backstop logistics — offering both standard lots and custom packaging to match sample throughput, from 100g laboratory flasks to full 25kg drums for regional reference sites. In consumables, overpacking not only raises cost but adds hassle during daily test prep. Our teams hand-weigh to order, minimizing shelf-time for customers, as stability over months rather than years keeps test outcomes predictable.

    Traceability and Confidence for Critical Testing

    No regulatory or healthcare client trusts a reagent without strong documentation and batch history. Based on direct requests from QA inspectors and third-party auditors, we log complete trace chains for every lot of sodium aesculin, tying each back to incoming raw glucoside, processing conditions, and retained samples. Each bottle gets a unique code, supported by digital and physical batch records stretching back several years.

    Each sample bottle ships with both HPLC spectra and documentation of microbial purity, additions that have solved more than one regulatory hold-up for pharmaceutical R&D and food QA labs during audits. We have stood in auditor conference rooms explaining precisely how each sample matches our in-house fingerprints, showing overlay spectra rather than making customers fight paperwork battles on their own. Labs working under ISO 17025, GLP, or GMP settings value the peace of mind from knowing exactly what went into their routine screens and how it matches certificate claims.

    User Experiences and Frequently Asked Questions

    Many of our larger clients have transitioned from low-purity aesculin or sodium aesculin blends with variable performance, sometimes after simple side-by-side tests with industry reference strains. One regional reference lab shared feedback that switching to our sodium aesculin reduced ambiguous colony readings by over 25%, supporting faster reporting and fewer redraws for patient and environmental samples. Dairy facilities running 24/7 bottling cycles found that tighter precipitation control meant fewer errant test shutdowns, particularly important for maintaining continuous operations and preventing costly downtime.

    Lab operators occasionally ask about visible color changes or granulation shifts from one lot to the next. Rarely does this happen, thanks to standardized extraction and drying, but on the rare occasion we spot a variation, extra QA holds batches before release, keeping customers from encountering problems downstream. Detailed instructions for stock solution preparation are available by request; for most users, direct dissolution into deionized water at room temperature produces clear, stable solutions suitable for pouring plates or automated dispensing.

    Technical advice and method consultation remain a core part of what we provide. We routinely assist labs troubleshooting unexpected results, walking through everything from test plate casting to water source choice. Over the years, our support team has seen nearly every odd artifact in aesculin hydrolysis testing, helping to distinguish between user error, environmental contamination, or, on rare occasions, a product issue. Learning from these challenges, we continue to refine our process, supply better documentation, and keep lines open with those running daily assays at the bench.

    Environmental, Storage, and Regulatory Considerations

    Manufacturing sodium aesculin obliges us to minimize waste and emissions. Our plant recycles washwaters and avoids dump-to-drain synthesis by capturing and reusing all mother liquors. Post-packaging, we work with a downstream partner to repurify all spent containers and handling gloves, closing the loop in our facility. Handling sodium aesculin yields only minimal dust, and routine air sampling confirms we remain below occupational exposure thresholds for fine organic powders.

    Long-term stability comes from controlling both humidity and temperature in storage and freight. We run climate-controlled warehousing and ship material in moisture-proof packaging to avoid lot-to-lot consistency issues. For those who work under stringent regulatory frameworks, every lot comes with full composition disclosure, allergen statements for the food industry, and certificates of origin, managed by our in-house compliance manager. Years of batch testing in ISO-accredited labs give us confidence in product consistency across shipping lanes and climate zones.

    Looking Forward: Supporting Scientific Progress

    Each time we send a shipment, we realize the final outcome sits not just with our team but in the test tubes and plates of our users. As scientific requirements tighten and research asks new questions, our production line evolves. We keep open lines with heads of laboratory science, clinical diagnostics, and food safety, adapting both our process and support to make sure every vial of sodium aesculin goes further. Continuous improvement and direct feedback fuel ongoing upgrades, bringing more clarity and reliability to daily testing across thousands of critical labs worldwide.