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5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt

    • Product Name 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt
    • Alias X-Gluc
    • Einecs 259-718-6
    • 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

    398826

    Productname 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt
    Casnumber 113798-20-0
    Molecularformula C14H12BrClNNaO7
    Molecularweight 444.6 g/mol
    Appearance Off-white to pale yellow powder
    Solubility Soluble in water
    Storagetemperature -20°C
    Purity Typically >98%
    Application Chromogenic substrate for β-glucuronidase
    Synonyms X-Gluc
    Absorbancemax 595 nm (after enzymatic reaction)
    Shelflife 2 years (when stored properly)

    As an accredited 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt, 1 gram, is supplied in a tightly sealed amber glass vial with labeling.
    Shipping 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt is typically shipped at ambient temperature and packaged in sealed containers to protect it from moisture and light. Ensure compliance with local regulations for handling chemicals, and avoid extreme temperatures during transit. Refer to the Safety Data Sheet (SDS) for specific transport and storage requirements.
    Storage 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt should be stored tightly sealed in a cool, dry place, protected from light and moisture. Recommended storage temperature is -20°C. Avoid exposure to air and oxidizing agents. Proper storage ensures chemical stability and prevents degradation. Always follow local regulations and material safety data sheet (MSDS) guidelines when handling and storing this reagent.
    Application of 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt

    Applications of 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt in Industrial Manufacturing

    As an established manufacturer of 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt (commonly known as X-Gluc), we support leading biotechnology, diagnostics, water quality, and clinical laboratory sectors with proven, high-purity intermediates for precision applications. Below, we outline major industrial use cases supported by specific compliance, technical requirements, and downstream product examples, reflecting real-world integration practices in global manufacturing environments.

    1. Chromogenic Substrate for Microbial Identification in In-Vitro Diagnostics

    Within clinical laboratory diagnostics, this compound serves as a chromogenic substrate for β-glucuronidase activity detection, enabling clear differentiation of Escherichia coli and other GUD-positive bacteria on culture media. The compound’s inclusion in ready-prepared agar base formulations allows for distinct blue coloration in microbial colonies, ensuring rapid and accurate visual assessment in regulated pathology settings.

    Industry compliance standards

    • ISO 15189 (Medical laboratories — Quality and competence)
    • Clinical and Laboratory Standards Institute (CLSI) M22 guidelines
    • European Pharmacopoeia (Ph. Eur.) monographs for culture media
    • Good Manufacturing Practice (GMP) in in-vitro diagnostic reagents

    Typical usage ratio

    • 0.05–0.1 g/L in finished agar or broth medium, adjusted based on matrix type and expected microbial load

    Downstream process integration

    • The substrate is added at the final stages of culture media mixing, after sterilization and cooling, to prevent thermal degradation and maintain chromogenic specificity

    Final product types

    • Ready-to-use chromogenic agar plates for E. coli detection
    • Dried culture media for food and water microbiology labs
    • Quality control reference media used in clinical and public health laboratories

    2. Environmental Water Testing for Coliforms

    Regulated water testing labs use this substrate to reveal the presence of E. coli in water samples by exploiting β-glucuronidase activity. When incorporated into single-use or bulk-formulated water testing kits, it provides field inspectors with a clear blue endpoint validation, allowing high-throughput analysis of potable and surface water samples in compliance-sensitive procedures.

    Industry compliance standards

    • U.S. EPA Standard Methods for Examination of Water and Wastewater (SM 9222, SM 9223)
    • ISO 9308-1 (Water quality — Enumeration of Escherichia coli and coliforms)
    • EN ISO 16266 (Detection and enumeration of Pseudomonas aeruginosa)
    • AOAC Official Methods of Analysis water testing guidelines

    Typical usage ratio

    • 0.08–0.2 g/L, optimized per kit manufacturer's validated protocols and expected water matrix interference

    Downstream process integration

    • Formulators introduce the substrate during premixing for single-use sachets or lyophilized tablet kits, always controlling for light and moisture before closure, and rehydrate it during field or lab testing procedures

    Final product types

    • Powder sachets for portable water testing
    • Lyophilized detection tablets for public health surveillance
    • Multi-target water analysis reagent packs

    3. Quality Control Media Production for Food Safety Testing

    Food quality labs deploy the substrate in chromogenic agar or broth to ensure compliance with local and international food safety standards by confirming the absence or count of pathogenic E. coli. Manufacturers supporting this sector must provide high-consistency raw material suitable for batch-controlled, QC-released media products that withstand scrutiny from auditors and regulatory food agencies.

    Industry compliance standards

    • ISO 11133 (Preparation, production, storage, and performance testing of culture media)
    • FDA Bacteriological Analytical Manual (BAM) protocols
    • European Food Safety Authority (EFSA) guidelines
    • HACCP-compliant traceability requirements

    Typical usage ratio

    • 0.06–0.12 g/L in rehydrated, finished food pathogen detection media; ratio fine-tuned per specific food matrix and validation trial performance

    Downstream process integration

    • Integrated in the final media mixture post-autoclaving, with close monitoring of pH and nutritional components to avoid substrate interference and ensure color accuracy in colony differentiation

    Final product types

    • Chromogenic dry media bases for food testing labs
    • Preservative-free, ready-to-use agar plates for high-throughput screening
    • Validation sample kits for food industry quality teams

    4. Academic and Industrial Enzyme Activity Assay Kits

    Researchers and biotech companies use this substrate in highly specific enzyme activity assays. Its sensitive chromogenic properties enable real-time monitoring of β-glucuronidase in innovative research, screening, and high-throughput enzymology settings. Stringent purity and consistency enable robust, reproducible results in published or regulated research contexts and commercial kit assembly.

    Industry compliance standards

    • Good Laboratory Practice (GLP) for reagent preparation and traceability
    • ISO 13485 (Quality management systems for medical devices — applicable to research kit manufacturers)
    • OECD Guidelines for the Testing of Chemicals (bioassay requirements)
    • Standard operating procedures validated by institutional review boards or laboratory accreditation programs

    Typical usage ratio

    • 0.01–0.05 g/L in custom assay buffers; precise levels determined by substrate turnover rate, enzyme source activity, and detection sensitivity requirements

    Downstream process integration

    • Added to buffered master mixes at the QC-controlled kit assembly step, backed by detailed batch certificate review and functional validation before release to end users

    Final product types

    • Chromogenic β-glucuronidase assay kits for academic labs
    • High-throughput screening plates for industrial enzyme R&D teams
    • Standardized substrate vials for contract research organizations
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    Competitive 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Turning Science into Solutions: A Practical Look at 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt

    Production Rooted in Trust and Consistency

    Developing 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt calls for close attention at every stage — from sourcing high-grade raw materials to precision-controlled syntheses on our own factory floor. We prioritize reliable batch consistency over shortcuts. Seasoned chemists on our line know each subtle indicator of reaction progress, from color hue to solubility profile, because we have handled this indoxyl glucuronide substrate for over a decade. Regular checks by experienced eyes and hands matter as much as the latest analytical instruments.

    Customers turning to this substrate want pure, reproducible performance, not speculation or luck. That forces us to commit to supplies of even the tougher-to-obtain starting materials, so supply disruptions rarely hit our warehouse. By running our own large reactors and managing all process variables internally, we’re not at the mercy of market fluctuations. Each lot of our X-Glucuronide Sodium Salt carries a strong record of traceability and material accountability—qualities that have built up long-term trust between our production floor and R&D teams around the world.

    Clarity and Sensitivity at the Bench: The Real Value

    Anyone who has run a β-glucuronidase assay or blue-white screening knows exactly what makes or breaks their results. Blue color development: clean, intense, and unmistakable. Our 5-Bromo-4-Chloro-3-Indolyl-β-D-Glucuronide Sodium Salt (model BCIG-Na) produces a distinctive blue precipitate in the presence of β-glucuronidase, enabling clear visual discrimination even at low enzyme levels. No more squinting at ambiguous color morphing or hunting for faint shades on your filter paper — or worse, worrying whether background hydrolysis will eat up your signal before you detect anything.

    The main reason for this clarity comes down to two factors: purity and particle size control. Our facility produces substrate lots with minimal dust and byproduct contamination; this means lower background and fewer false positives. Tight particle size distribution helps our solution dissolve efficiently during media preparation, minimizing clumping or settling that can obscure true colony color. Each batch is checked not just for identity and moisture level, but for specific response to enzyme — if our in-house micro team doesn't see a sharp blue endpoint, that lot stays in-house for reprocessing, not export.

    Applications That Drive Discovery

    X-Glucuronide Sodium Salt has built its reputation in molecular biology and diagnostics. Many researchers rely on it for β-glucuronidase reporter gene detection in E. coli and plant transformation screening. In histochemistry, pathologists count on the sharp blue color to pinpoint GUS enzyme expression within tissue slices. Clinical diagnostic labs increasingly use this substrate as part of routine kits testing for traces of E. coli contamination or personalized enzyme activity profiling in human specimens.

    Researchers share that most off-brand alternatives yield pale, washed-out, or time-delayed indications, complicating analysis as single colonies may blend in with background noise. Our process prioritizes rapid, uniform color formation, letting users count positives with confidence. Accurate visualization saves hours on colony picking and minimizes false leads, which is why seasoned lab pros come back to our substrates for critical projects.

    Specifications Built Around Experience, Not Guesswork

    Lab professionals don’t have the luxury to gamble on every new supplier. That’s why we’ve designed our BCIG-Na product grade based on cumulative feedback from real users. Our synthesized material has a longstanding threshold for allowable impurities—typically fewer than 0.2 percent combined by HPLC—and water content strictly below 10 percent, because excess moisture accelerates degradation during storage. Particle size checks ensure that no more than a handful of granules reach above 150 microns, and average mean size stays in the optimal 70-100 micron range. You won’t see visible clumps jam the scoops in your dispenser, and the powder dissolves smoothly in standard agar or buffer protocols.

    The blue chromophore’s peak absorption wavelength is measured and confirmed for each new lot, guaranteeing the classic indoxyl-derived color signature that downstream workflows expect. Even storage stability comes heavily informed by firsthand experience: humidity fluctuations can degrade both color and solubility, so our packaging uses double-layered foil with desiccant and continuous batch monitoring. We never rebrand surplus commodity grades, so our customers don't get burned by unexpected variation mid-project.

    Differences from Substitute Products: Lessons from the Field

    We've reviewed dozens of competitor samples over the years. Low-cost sources routinely cut corners on wash steps or starting material quality, and those differences show quickly in both initial purity and long-term shelf stability. Unrefined lots may contain excess indoxyl, unreacted halogenated indoles, or even carry-over insoluble contaminant — all of which risk false positives or muted color development. Our crews have seen GC-MS and UV spectra with trace impurity peaks corresponding to batch shortcuts.

    Generic bromo-chloro-indoxyl substrates coming out of purely contract manufacturing shops often use less stringent purification, trading quality for throughput. Many struggle to supply consistent powder flows — detectable as caking, increased clumpiness, or orange-tinged instability. Those seemingly minor handling glitches turn into major headaches when they throw off sensitive absorbance readings or disrupt colony picking routines in a busy lab. Years of customer feedback have guided us in adapting our process, so we use carefully controlled reaction times, stepwise purification, and extra filtration to capture the low-impurity standards that specialty clinical labs and biotech firms expect.

    Longstanding competitors sometimes offer 5-bromo-4-chloro-3-indolyl derivatives in blended forms or as generic-grade salts. While these sometimes meet basic research requirements, they fall short in regulated settings where batch-to-batch reproducibility and traceability matter. Ingredient authentication, validated quantification assays, and documented manufacturing controls all become unavoidable once labs operate under ISO or GLP quality systems — something our own team has had to adopt as product scale and user expectations rose.

    Tackling Common Problems in Lab Settings

    The most frequent complaints we hear involve false negatives — colonies with true GUS activity failing to turn blue, or only weak blue blooming after extended incubation. Low-activity lots often trace directly back to moisture intrusion either during storage or shipping. Past incidents involving unsealed packages taught us to test packages under simulated tropical transport and high-humidity ambient storage, adjusting our barrier film and desiccant mix each time. Direct-seal aluminum pouches have reduced shelf failure rates dramatically.

    Another common pitfall from alternative sources stems from inter-batch color variability. A quick test in our reading lab involves adding standard amounts of β-glucuronidase to the substrate dissolved in phosphate buffer. If the expected blue color doesn't appear within the right window or shades drift with each new shipment, researchers lose valuable time. Our solution records reference spectra for every batch, storing standardized data for client review. We also support an ongoing QC program to recalibrate instruments and crosscheck colony picking results, minimizing user-to-user discrepancy.

    Handling and storage also play a major role in long-term product performance. Technicians who gently mix substrate solutions, use pre-cooled mortars for grinding, and reseal their containers inside glove boxes report lower loss in colony signal. We continue refining our operator training at the plant — not just for regulatory reasons, but because end-user complaints turn directly into process improvements.

    Real-Life Use Cases and Continuous Product Evolution

    Large research consortia and diagnostic kit manufacturers regularly send back data on field use. One major agricultural institute tracked enzyme screening success on thousands of transgenic plants, noting a conversion from mostly ambiguous, faint-blue calli with a competing product to consistently deep-blue spots using our substrate. In a food safety reference lab, staff compared five name-brand products for detection of E. coli in waterborne samples. The most reliable, repeatable blue signals stemmed from our substrate, with lower background picks and faster color onset.

    We work directly with these teams, often tailoring packaging types or lot sizes to reduce waste while preserving integrity. New feedback shapes ongoing upgrades to purification steps, which have grown more critical as regulatory requirements tighten. Periodic user roundtables have highlighted the need for ever-lower particulate levels; in response, we’ve installed automated filtration and added a visual inspection station where trained staff spot surface granulation before shipping.

    Some biotech firms in our network have leveraged the robust color signal for high-throughput automated screening. Instrument sensors rely on consistent chromophore peak intensity, with minimal spectral drift from batch-derived changes. On-site visits showed that any variability in starting material purity or crystal handling led to non-linear detection curves, so we doubled down on pre-shipment QC, routinely rejecting off-conforming lots for further processing. This cycle of customer input directly entrenches tighter thresholds on impurity and moisture content, proving essential as downstream applications grow more demanding.

    Commitment to Transparency and Continual Learning

    We believe transparency means more than a certificate of analysis; it means real openness about critical points in our workflow. We regularly invite researchers for on-site audits or conference calls to walk them through how X-Glucuronide Sodium Salt is actually made and tested. Internal staff sign off each step, from first charge to final packaging, with in-line verification and sample archiving, so every package sold can be traced and independently verified against reference standards.

    Plant technical managers keep a close logbook — noting every batch deviation, identifying purge points, and sharing these findings in cross-department review sessions. Our team learns just as much from user complaints as from glowing endorsements. We see ongoing E-E-A-T (experience, expertise, authority, and trust) as a two-way street: no process improvement can take hold without open exchange with the people relying on these products every day.

    With QC officer rotation between the analytical lab and the plant floor, problems get seen from every angle — helping prevent groupthink and maintain objectivity. Open-door policy with inspectors, and regular sharing of real-world stability test data, keep us learning and adapting.

    Standing Apart by Listening, Not Just Manufacturing

    It’s tempting to rely only on raw test data or trending compliance checklists to guide manufacturing. Yet, unless we listen to frontline technicians and scientists, we risk missing the most critical edge cases. Feedback channels run both ways — user requests for particular bottle sizes, dust-minimized granules, or bulk delivery to feeder lines have all led to real product changes over the years.

    We make it a point to respond quickly to any reports of packaging damage, partial caking, or product underperformance. Every user story of a failed colony pick or inconsistent blue endpoint doesn't just go into a file; it starts a team-wide review aimed at root cause analysis and corrective action. Whenever possible, we run head-to-head demo lots with users’ existing supplies, collecting side-by-side outcome data to drive continued refinement.

    Full traceability means openness about our supply chain and production history. Any time we log a deviation — unexpected pre-filtration color, out-of-spec moisture — our internal response includes direct outreach to affected users, clear documentation, and, where needed, replacement or process review.

    Future Directions and Evolving User Demands

    Diagnostic protocols and bioengineering techniques grow more sophisticated every year. Demand for higher-sensitivity screening tools means every impurity, every handling anomaly, and every packaging imperfection gains outsized impact. We run beta-scale test batches, validating new lot preparation procedures under simulated field conditions. The constant: reliability in enzyme response and color intensity for every researcher, regulatory lab, or diagnostic company relying on this substrate.

    We see long-term success stemming less from bold marketing and more from the technician who reliably identifies a true positive, the scientist who trusts the same sharp blue that worked last quarter, and the manufacturing crew willing to overhaul steps without a moment’s hesitation if downstream feedback indicates a gap. Investment in better sensors, training, and equipment pays off in reputation and repeat business more than any shortcut ever could. As applications expand — from pathogen screening to metabolic tracing in advanced clinical research — our challenge stays the same: supply product that solves problems, not introduces them.

    Final Thoughts: Why X-Glucuronide Sodium Salt Remains Indispensable

    Every lot of 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt passing our gates represents hours of attention — to sourcing, temperature control, washing, drying, particle assessment, color rendering, and direct user interaction. We don’t claim to have solved every handling challenge, but improvements keep stacking up, rooted in experience gained on the job and feedback from thousands of users worldwide.

    For labs searching for certainty in their GUS screening or colorimetric enzyme detection, the right substrate pays for itself in clean, immediate, and unmistakable results. We commit to quality because we see, daily, its direct benefit to research clarity, technician safety, and long-term project reliability. The difference between a faint hint of blue and an unmistakable signal can tip the scales on major decisions in plant breeding, clinical diagnostics, or biotech innovation.

    In the end, our advantage comes from holding each stage in our own hands, centering production around what works for working scientists: practical color formation, tight quality specifications, and support informed by actual in-lab realities. That’s the foundation upon which our 5-Bromo-4-Chloro-3-Indolyl-Beta-D-Glucuronide Sodium Salt continues to earn its reputation as a difference-maker, batch after batch, project after project.