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Pyridine Hydrobromide

    • Product Name Pyridine Hydrobromide
    • Alias Pyridinium bromide
    • Einecs 214-328-4
    • 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

    100599

    Product Name Pyridine Hydrobromide
    Chemical Formula C5H6N·HBr
    Molecular Weight 160.03 g/mol
    Cas Number 18820-71-4
    Appearance White to off-white crystalline powder
    Solubility In Water Freely soluble
    Melting Point 205-208 °C
    Boiling Point Decomposes before boiling
    Ph Of Aqueous Solution 3.0-4.0 (1% solution)
    Storage Temperature Store at room temperature, tightly closed

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

    Packing & Storage
    Packing Pyridine Hydrobromide is supplied in a 100g amber glass bottle with a screw cap, labeled with hazard information and storage instructions.
    Shipping Pyridine Hydrobromide is shipped in tightly sealed, chemical-resistant containers to prevent moisture absorption and degradation. Packaging complies with UN hazardous material regulations. Containers are clearly labeled, cushioned to prevent breakage, and shipped in accordance with local, national, and international transport guidelines for hazardous chemicals. Handle with appropriate protective equipment.
    Storage Pyridine Hydrobromide should be stored in a cool, dry, and well-ventilated area, away from sources of ignition, heat, and incompatible substances like strong oxidizers and bases. Keep the container tightly closed and properly labeled. Protect from moisture and direct sunlight. Use appropriate corrosion-resistant containers, and ensure storage conditions prevent the substance from absorbing atmospheric moisture or decomposing.
    Application of Pyridine Hydrobromide

    Applications of Pyridine Hydrobromide in Industrial Manufacturing

    Pyridine hydrobromide serves as a critical intermediate and process reagent across multiple specialized chemical manufacturing sectors. Its controlled reactivity as a brominating, reducing, or catalyst agent enables industrial-scale syntheses with precise batch-to-batch reproducibility. Our high-purity manufacturing ensures compliance with international supply chain standards and predictable integration for demanding downstream operations.

    1. Pharmaceutical Alkaloid Synthesis

    Pharmaceutical manufacturers rely on pyridine hydrobromide in the synthesis of various api-related alkaloids, including the quaternization steps required for cephalosporin and other beta-lactam antibiotics. The compound’s brominating function permits regio- and chemoselective modifications under GMP-controlled environments. Accurate dosing, low trace impurities, and reaction kinetics suited to pilot and commercial scales support regulatory submission batches for global drug approvals.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP/NF specifications for pharmaceutical intermediates
    • EU EudraLex Volume 4 GMP for API manufacturing
    • FDA 21 CFR Part 211 for Pharmaceuticals

    Typical usage ratio

    • 0.8–1.2 molar equivalents per targeted substrate, adjusted based on substrate reactivity and desired end conversion. Reaction monitoring by HPLC determines endpoint.

    Downstream process integration

    • Added during alkaloid backbone synthesis or side-chain quaternization
    • Employed in closed reactor systems with inline pH and temperature control
    • Requires aqueous or mixed solvent media for efficient phase transfer
    • Purification via recrystallization or solvent extraction prior to downstream API crystallization

    Final product types

    • Cephalosporin API precursor compounds
    • Active quaternary alkaloids
    • Beta-lactam intermediates
    • Pharmaceutical-grade salts and injectable bulk actives

    2. Agrochemical Fumigants and Pesticide Formulations

    Leading agrochemical producers incorporate pyridine hydrobromide to generate specific brominated pyridines and related intermediates necessary for crop protection formulations. Its consistent dissolution and controlled exotherm in large scale reactors enable uninterrupted continuous processing. Strict adherence to agricultural chemical regulations ensures product traceability and compliance for export-oriented pesticide manufacturing plants.

    Industry compliance standards

    • FAO/WHO food and agriculture specification guidelines
    • EPA 40 CFR Part 158 pesticide tolerance limits (USA)
    • GB 2763–2021 (China) Food Safety National Standards for pesticide residues
    • REACH Annex XVII restrictions for pesticide ingredients (EU)

    Typical usage ratio

    • 1.1–1.5 molar equivalents relative to the pyridyl substrate, with optimization based on batch size, target impurities, and desired bromide content.

    Downstream process integration

    • Metered addition following base pyridine activation step
    • Blended in stirred tank reactors with temperature management for large-volume scale
    • Pyridine hydrobromide introduced before sulfurization or nitration (if required)
    • Post-reaction workup by vacuum distillation or extraction for high-yield intermediate recovery

    Final product types

    • Brominated herbicide intermediates
    • Pyridine-based fumigants
    • Selective insecticide active ingredients
    • Registered pesticide technical concentrates

    3. Dye and Pigment Intermediate Manufacturing

    Dye producers utilize pyridine hydrobromide for bromination steps in the synthesis of specialty azo and anthraquinone derivatives. The consistency of this reagent supports commercial-scale operations with stringent color reproducibility and minimal side product formation. Automated dosing and in-process sampling are used to maintain batch quality and meet product registration requirements for downstream textile and pigment applications.

    Industry compliance standards

    • OEKO-TEX® Standard 100 for harmful substance limit
    • REACH Regulation (EC) No 1907/2006 requirements for dyes and pigments
    • ISO 9001:2015 Quality Management Systems
    • ZDHC MRSL for textile input chemicals

    Typical usage ratio

    • 0.9–1.3 moles per mole of dye precursor, with active monitoring to prevent over-bromination and maintain desired color profile

    Downstream process integration

    • Added during initial dye intermediate synthesis following diazotization or condensation
    • Allows for in-situ bromination for targeted dye shade production
    • Integrated into closed-loop stirring vessels with strict emission controls
    • Precipitated dye intermediates filtered and rinsed prior to transfer to finishing lines

    Final product types

    • Brominated azo dye intermediates
    • Anthraquinone pigment precursors
    • High-purity colorants for fibers, plastics, and coatings
    • Textile-grade dye formulations

    4. Laboratory and Analytical Reagent Production

    Specialty reagent companies use pyridine hydrobromide to manufacture qualitative and quantitative reagents essential for laboratory assays, titrations, and chemical analysis kits. Its purity profile and reliable reactivity under laboratory conditions allow certified reference material production and supply to research organizations and regulatory laboratories. Scientific workflows benefit from batch traceability, validated impurity limits, and full quality control documentation for global distribution.

    Industry compliance standards

    • ISO 17025 accreditation for testing and calibration laboratories
    • ASTM E200–19 for laboratory reagent chemicals
    • CFR 21 Part 58 Good Laboratory Practice (GLP) for nonclinical labs
    • DIN EN ISO 8655 for piston-operated volumetric apparatus reagent compatibility

    Typical usage ratio

    • Formulations range from 0.5 g/L up to 10 g/L, depending on the analytical method or titration endpoint sensitivity; lab scale optimized for accuracy and repeatability

    Downstream process integration

    • Weighed and dissolved under laminar flow benches for reagent kit assembly
    • Concentrations adjusted to calibration standard requirements or assay-specific instructions
    • Fully documented lot traceability during packing into bottles or ampoules
    • QC tested for each batch against certified analyte standards

    Final product types

    • Chemical titration reagents for environmental and food testing
    • Analytical detection kits for pharmaceutical impurities
    • Standardized bromination reagents for research and QC labs
    • Certified reference material solutions
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    Competitive Pyridine Hydrobromide prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Pyridine Hydrobromide: Practical Insights from the Manufacturer’s Bench

    Understanding Pyridine Hydrobromide Beyond the Label

    After years working with the nuances of specialty nitrogen compounds, certain niche molecules demand both a careful respect and honest reflection about what they mean for real-world chemistry. Pyridine Hydrobromide isn’t just another line item in the catalog; it’s a bench workhorse for those processes where a robust hydrobromide source tied to a heterocycle makes all the difference. Beneath the chemical formula sits a simple but essential reality: this is a material built for serious, precise work, and those using it usually know right away if it delivers.

    What Sets Our Product Apart

    The technical community often asks what sets our Pyridine Hydrobromide apart from the sea of options—models, lots, and the endless churn of similar-sounding stock. The short answer draws from our direct experience: we control every part of production, from the purity of the pyridine base material to the final crystallization and testing. Each lot leaves the factory after repeated checks for moisture, particle size, and absence of organic impurities. Generic alternatives sometimes cut corners on these basics, which leads to batch-to-batch quirks, unpredictable reactions, and ruined runs. Within the lab or plant, such variation increases costs far beyond what a cheap purchase price suggests.

    Purity matters in pyridinium salts. Our standard grade usually exceeds 99% assay by dry weight, barring occasional variances that arise in bulk synthesis. We target low residual solvent, minimal color contamination, and stable physical characteristics—mainly white to off-white crystalline powder, free-flowing, and with a melting point that stands up in repeated trials. Some competitors market a brownish, clumpy material that discolors solutions or throws off spectroscopic readings. Such details don’t seem critical until an unplanned reaction occurs, a process is scaled up, or analytic work must meet regulatory review.

    Applications Shaped By Real-World Chemistry

    From our vantage as chemical manufacturers, most of the demand for Pyridine Hydrobromide comes from customers aiming for exacting organic synthesis—workers making use of its role as a ligand, a bromide source, or as a charge-transfer reagent. The most common stories we hear trace back to the smooth introduction of bromide into reaction mixtures, especially where the mildness or coordination ability of pyridine is essential. In bromination reactions, for example, our product replaces less stable or more hazardous alternatives. We have seen it win out against free hydrobromic acid in cases where corrosion or harsh acidity interferes with delicate starting materials or plant hardware.

    Pharmaceutical companies are frequent users, often for the controlled introduction of bromide into advanced intermediates. Their feedback usually points not just to performance, but to regulatory traceability. We have found that downstream cGMP documentation demands a full audit trail on the raw material. By manufacturing in-house, we provide thorough batch records—not a luxury but a requirement in today’s regulatory landscape. Episodic shortages or quality swings, which sometimes plague the generic market, are less common when a manufacturer keeps close tabs on their own process.

    Academia often asks for the product in smaller pack sizes or requests custom hydration levels. In these situations, we can draw on flexible drying and milling infrastructure. Most requests stem from work on N-alkylation protocols, dendrimer synthesis, or applications in alkaloid chemistry. Our technical support team has heard more than once about the frustration of explaining away “mystery” peaks in NMR spectra, only to trace it back to an off-brand hydrobromide purchased on price alone.

    What We’ve Learned About Storage, Handling, and Safety

    We maintain a strict climate-controlled storage protocol, because the hydrobromide salt’s hygroscopic nature can erode both purity and handling characteristics. Even brief exposure to humid air changes caking tendency and, eventually, influences assay results. Customers who ignore the label’s warning sometimes call us months later, asking why the powder is clumping or why residual water is failing next-gen analytics. From long experience, we recommend tight-seal containers, desiccant packs inside larger storage drums, and quick transfer procedures. Our own packing crew follows this religiously; the gap between boring, routine handling and a ruined lot can be just minutes on a muggy day.

    In terms of occupational safety, Pyridine Hydrobromide fits squarely in the class of irritant organic salts. From repeated use, workers quickly learn its taste and smell—a sharp, bitter note with a telltale acidic overtone. The main hazard comes from dust—causing mild respiratory or skin irritation—and occasional traces of free pyridine, which has its own occupational health limit. The right approach involves physical containment, dust extraction, and straightforward personal protective equipment. Larger installations integrate closed transfer lines or glovebox setups on kilo scales. This kind of culture minimizes chronic exposure, builds long-term worker confidence, and protects process integrity.

    Reliability and Traceability: Why They Matter More Than Ever

    Within manufacturing, an unstable supply chain means lost work, unexpected retooling, and budget overruns. Having weathered more than a few periods of raw material scarcity, including crises involving upstream bromine sources or feedstock pyridine-grade solvents, we have built both redundancy and flexibility into the chain. Our policy is to keep more raw materials on hand than strictly necessary, allowing us to fulfill contracts even during acute shortages. This discipline may seem old-school, but it has earned the loyalty of technologists and procurement specialists alike.

    We’ve also registered our Pyridine Hydrobromide with multiple compliance and audit systems, not just for export but for our own internal standards. Typical inquiry cycles involve not only lot analysis and CofA review, but deep-dive audits of our water and waste management records, supplier certifications, and even the audit trails for maintenance events in the dryer or crystallizer units. Experience shows that even the smallest process deviations—the wrong vacuum level, a slightly off feed rate—change the physical and chemical realities of a batch. We don’t regard “traceability” as a buzzword but as a baseline necessity for serious industry partners.

    Differences From Other Hydrobromide Salts and Pyridine Derivatives

    Anyone familiar with hydrobromide chemistry notices quickly that not all hydrobromides—or even all pyridinium hydrobromides—behave the same way. Generic “hydrobromide” implies only that hydrobromic acid has neutralized a base, and the resulting salt might be radically different in terms of reactivity, coordination ability, and byproducts. Compared to alkyl ammonium hydrobromide salts, pyridine’s aromaticity and steric characteristics give it unique solubility properties, reactivity, and lower tendency toward hydrolysis in some solvent systems.

    Among pyridinium derivatives, subtle changes in substituent patterning drastically affect usage. Our Pyridine Hydrobromide is unmodified at each ring position, which means reactive chemists are working from a clean slate. This proves crucial in syntheses that cannot tolerate regioisomeric mixtures or that depend on an unadulterated aromatic system. Some research suppliers offer substituted analogs, which skew results and often confuse less-experienced buyers. We routinely facilitate conversation between our technical teams and buyers, clarifying the practical consequences of using one pyridinium salt over another. Years of troubleshooting with partners—particularly those working up scale from research to production—have taught us to ask questions upfront, especially when customers request “hydrobromide” without further specification.

    Environmental Impact and Sustainability in Production

    Production doesn’t happen in a vacuum. Manufacturing Pyridine Hydrobromide generates wastewater acidic with bromide and trace organic content. Over the years, we have installed a series of scrubbers, phase separators, and recovery columns to reclaim both solvent and bromide byproducts. The industry is moving toward more sustainable bromine derivatization, and our operations track both wastewater reduction and energy utilization per batch. Older manufacturing approaches, used by certain cut-rate providers, tend to vent more halogen, lose more costly solvents to the incinerator, and often skirt environmental monitoring requirements.

    With a shift toward circular economy models, we invest year on year in solvent recovery and final product purification. The same drivers that improve cost competitiveness—higher-yield, less-waste methods—also allow us to comply proactively with tightening regional and national emissions standards. Partners up and down the supply chain notify us when regulations change, enabling prompt adaptation. We engineer each new line not only for throughput, but for reduced waste steams, easier operator monitoring, and safer final packaging.

    Market Trends: Responding to Shifting Demands and Global Contexts

    Market interest in Pyridine Hydrobromide tracks broader trends in the fine chemical and pharmaceutical sectors. Over the past decade, regulatory headwinds and stricter environmental controls have trimmed the number of permitted manufacturers worldwide. Some regions have reduced or banned the use of certain pyridine derivatives, while demand has grown in others, spurred by generic medicine production and expanding custom synthesis for agrochemicals. Our production planning must flex year to year, adapting batch cycles, raw material inventory, and technical personnel to reflect this changing business reality.

    Recent years also saw heightened scrutiny of intellectual property—both process know-how and end-use applications. We field more technical requests from contract research organizations, custom manufacturing clients, and even academic consortia than ever before. Many of these inquiries move beyond stock product sheets, probing questions of stability under unusual conditions or compatibility with new synthetic protocols. Our status as direct manufacturer lets us provide real, bench-tested answers—not marketing promises plucked from generic catalogs. This technical engagement serves as both protection—insulating customers against failed experiments—and an engine of ongoing innovation.

    Custom Solutions: Meeting Specific Needs Beyond the Standard Offerings

    No two customers—or even two batches—are truly alike. Flexibility must be built into the manufacturing backbone of Pyridine Hydrobromide production. We frequently supply alternate pack sizes, ship hydrated or anhydrous forms based on specific downstream needs, and provide pre-blending with other reagents for well-characterized, in-house procedures. One recurring lesson: neither cost-sensitive buyers nor bench chemists tolerate surprise change. Consistency, transparency, and openness regarding minor batch differences turn potential customer frustration into a shared technical partnership. These are qualities not available through bulk commodity brokerage.

    In a large-scale operation, simple changes in milling, drying, and screening dramatically affect the final product. Over the years, a feedback loop between plant floor and technical support led to process tweaks: finer fractions for rapid dissolution, coarser cuts for free-flowing automated feeding, alternate hydration for customized delivery. These choices support both research and scale-up, ensuring translation from pilot plant to production line is smooth. We realize the importance of flexibility in documentation too; providing full analytical dossiers, impurity profiles, and stability data as a matter of routine.

    Lessons From the Field: Common Pitfalls and How We Address Them

    As a manufacturer, we see pitfalls others miss. One recurring failure involves mislabeling or misuse by distributors: batches mixed up at a reseller’s warehouse, outdated certificates, or labels missing country-of-origin data. Direct supply routes, built on longstanding relationships between our technical sales team and end-users, solve these problems. Buyers recognize that remedies for process failures—whether a stuck reaction or dud analytic run—stems from firsthand understanding, not contract escalation through a stack of intermediaries.

    Routine support calls teach us that even experienced chemists occasionally overlook basic storage, incompatibility with certain solvents, or the impact of microtraces of residual base on product purity. The most successful partnerships involve early communication, open channels between technical teams, and a shared commitment to continuous improvement rather than cut-price shortcuts. In this way, the “product” amounts to more than physical material—it covers process science, hazard reduction, and risk mitigation from the supplier’s side as much as the user’s.

    Continuous Improvement and Looking Ahead

    Manufacturing Pyridine Hydrobromide demands not just technical consistency but a willingness to change and upgrade with new knowledge. Each year, we review in-plant analytics, customer satisfaction, returns processes, and even feedback on packaging or label readability. Several improvements—such as improved desiccant use, more robust bulk packaging, and direct feed consultation—trace directly to customer interaction rather than in-house theorizing. As industrial and academic standards advance, so does the need for documentation, impurity control, and real-time technical support.

    One of the most rewarding parts of the job arises from turning setbacks into productive change. We routinely trial incremental process optimizations—one year, focusing on suppressing a minor side impurity; another, reducing process energy footprint through advanced heat exchange. These changes take root quickly because end-users notice tangible differences—less downtime, fewer failed analyses, improved product safety. Our outlook, shaped by years in the trenches, involves steady adaptation. Like the molecule itself, our approach must remain simple, reliable, and ready to face each new demand.

    Final Thoughts from the Manufacturer’s Perspective

    Pyridine Hydrobromide remains a chemical that rewards care at every level—from raw material sourcing and controlled crystallization to intelligent customer engagement. As manufacturer, we have learned that true product value includes reliability, technical transparency, and a demonstrated willingness to stand behind each shipment. Rather than chasing abstract quality standards, we rely on deep, bench-proven experience, supplier honesty, and the real needs of labs and plants alike.
    We remain committed not just to supplying a product, but to providing insight and partnership drawn from hands-on experience—ensuring each user can achieve their scientific and industrial goals with confidence.