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4-Bromo-2,6-Diaminopyridine

    • Product Name 4-Bromo-2,6-Diaminopyridine
    • Alias 4-Bromo-2,6-pyridinediamine
    • Einecs 242-159-6
    • 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
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    Specifications

    HS Code

    155543

    Chemical Name 4-Bromo-2,6-Diaminopyridine
    Cas Number 41821-26-7
    Molecular Formula C5H6BrN3
    Molecular Weight 188.03 g/mol
    Appearance Off-white to light brown powder
    Melting Point 260-264°C
    Purity Typically >98%
    Solubility In Water Slightly soluble
    Smiles C1=CC(=NC(=C1N)N)Br
    Inchi InChI=1S/C5H6BrN3/c6-2-1-3(7)9-5(8)4(2)10/h1H,7-8H2
    Storage Conditions Store at 2-8°C, protected from light
    Synonyms 4-Bromo-2,6-pyridinediamine

    As an accredited 4-Bromo-2,6-Diaminopyridine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

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    Application of 4-Bromo-2,6-Diaminopyridine

    Applications of 4-Bromo-2,6-Diaminopyridine in Industrial Manufacturing

    As an integrated producer, we supply 4-Bromo-2,6-Diaminopyridine for specialized downstream sectors with established manufacturing value chains. Our product is benchmarked to precise formulation roles and compliance requirements for each applied scenario. Below, we detail the recognized uses aligned with current industry demands.

    1. Pharmaceutical API Synthesis: Dyes and Intermediates for Cephalosporin Production

    Pharmaceutical manufacturers rely on 4-Bromo-2,6-Diaminopyridine as a key intermediate for advanced cephalosporin-side chain development. It enters early-stage process routes, primarily via nucleophilic substitution and cyclization steps, forming ring-structured intermediates critical to third-generation cephalosporin antibiotics. Quality managers closely monitor its purity and reactivity profile during batch records, ensuring conformance for regulated product launches.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • Ph. Eur., USP–NF monographs (as applicable for downstream APIs)
    • 21 CFR Part 211 (U.S. FDA Current Good Manufacturing Practice)
    • EDQM CEP dossier sections for intermediates

    Typical usage ratio

    • 0.8–2.5 molar equivalents depending on the cephalosporin side chain route; stoichiometry adjusted per process yield optimization

    Downstream process integration

    • Loaded directly into pre-condensation or nucleophilic displacement steps as a pyridine source during intermediate coupling
    • Monitored for residual bromine and pyridine impurities during stage-gate quality control

    Final product types

    • Third-generation cephalosporin APIs (e.g., cefixime, cefdinir intermediates)
    • Pyridinamine-based pharmaceutical intermediates

    2. Hair Dye Formulation: Oxidative Hair Colorant Synthesis

    Hair colorant formulators use this compound as a primary intermediate in the creation of oxidative dyes, driving controlled color uptake and durability. The compound participates in in situ oxidation reactions with hydrogen peroxide and coupler agents under alkaline conditions, yielding specific shades for permanent hair color solutions. Stability and purity critically impact finished dye shade uniformity and allergenic impurity levels, requiring careful raw material control.

    Industry compliance standards

    • EU Cosmetic Regulation (EC No 1223/2009) Annex III—Permitted Hair Dye Substances
    • US FDA 21 CFR 73.2190 (Hair dye ingredient reporting)
    • Japan’s Ministry of Health, Labour and Welfare: Positive list for hair dye ingredients
    • ISO 22716 (Cosmetic GMP for manufacturing sites)

    Typical usage ratio

    • 1–2% w/w of total dye intermediates for permanent color creams
    • Adjusted based on shade intensity and compatibility with other color bases

    Downstream process integration

    • Dissolved in dyestuff blend with other aromatic amines prior to cream base emulsification
    • Oxidized in presence of hydrogen peroxide during final application or pre-oxidation blending

    Final product types

    • Permanent oxidative hair colorants
    • Professional salon and retail hair dye kits

    3. Agrochemical Active Ingredient Synthesis: Pyridine Herbicide Intermediates

    In agrochemical manufacturing, the compound functions as a synthon for preparing pyridinyl-based herbicide intermediates. It gets incorporated in multi-step syntheses through halogen-exchange, coupling, and condensation mechanisms, leading to advanced structures such as heterocyclic herbicide cores. Strict specifications around residual amines and halides are critical to ensure downstream crop-protection product safety and performance.

    Industry compliance standards

    • FAO Specification for Pesticide Intermediates
    • REACH Regulation (EU) 1907/2006
    • ISO 9001:2015 (Production quality management)
    • Agrochemical manufacturer-specific product stewardship protocols

    Typical usage ratio

    • 0.5–1.5 molar ratio as a building block relative to total active ingredient designed target mass

    Downstream process integration

    • Introduced during cyclization or nucleophilic coupling to construct selective pyridine herbicide skeletons
    • Purified through crystallization and further derivatization into herbicidal actives

    Final product types

    • Pyridinyl-based herbicides (e.g., fluridone, picloram intermediates)
    • Precursor compounds for broadleaf and grassy weed control formulations

    4. Specialty Dye and Pigment Manufacturing: Electronic and Technical Applications

    Specialty chemical producers utilize our material for synthesizing select pyridine-derived pigments and high-purity dyes, particularly for use in technical textiles and electronic components. It serves as an anchor point in the molecular framework during multi-step condensation steps, producing colorants with defined electronic properties. The control of trace metal and bromide impurities remains essential for compatibility in electronic-grade pigment dispersions.

    Industry compliance standards

    • OEKO-TEX® Standard 100 (Textile safety and restricted substances)
    • EN 62476 (Electronic component pigment standards)
    • RoHS Directive (EU) 2011/65/EU (Restriction of hazardous substances in electronics)
    • ISO 9001/14001 (Process and environmental management)

    Typical usage ratio

    • 0.3–1.2 molar ratio relative to chromophore-forming agents in pigment syntheses

    Downstream process integration

    • Converted through diazotization or ring extension to build extended conjugated dye molecules
    • Combined with metallic ions or quaternizing agents to finalize pigment’s electrical/optical properties

    Final product types

    • Conductive dyes for electric circuits
    • Technical fabric dyes for high-visibility workwear
    • Specialty pigments for printer and security inks
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    Certification & Compliance
    More Introduction

    Introducing 4-Bromo-2,6-Diaminopyridine: A Closer Look at a Key Building Block in Chemical Synthesis

    Every chemist and industry professional eventually encounters a handful of specialty compounds that quietly carry the weight of complex projects. 4-Bromo-2,6-Diaminopyridine stands out as one of those unsung heroes, often bridging the gap between raw materials and advanced end products. This compound, with the formula C5H6BrN3, stands as an essential intermediate for the creation of pharmaceuticals, agrochemicals, and dyes. Having handled and worked around specialty chemicals for years, I see more urgency now than ever for solutions grounded in reliability and safety. Looking closely at what sets this pyridine derivative apart from the crowded field reveals much about how modern industries keep moving forward.

    A Unique Structure with Practical Implications

    At first glance, the structure of 4-Bromo-2,6-Diaminopyridine appears simple—a pyridine ring with two adjacent amine groups and a bromine atom at the four position. Yet, this pattern opens up opportunities that similar molecules don’t offer. The model shows remarkable reactivity: the two amine groups at positions 2 and 6 create a canvas for chemical manipulation, and bromination at the 4-position kicks off cross-coupling reactions or nucleophilic substitutions with efficiency. In lab work, this translates to fewer side reactions and cleaner routes to more advanced molecules.

    Many other pyridine derivatives float around in the market, with alternating substitutions or halogens in other positions. With 4-Bromo-2,6-Diaminopyridine, the placement of functional groups gives it an edge for downstream modifications. Both academic and industrial settings value this architecture, since it offers more control during synthetic sequences. Where some analogs stall or demand extra protection and deprotection steps, this compound can shine, accelerating timelines and reducing waste.

    The Real-World Need: Why 4-Bromo-2,6-Diaminopyridine Matters

    Talk to professionals in pharmaceutical research and the conversation inevitably turns to synthesis. Designing, optimizing, and scaling up routes to complex drugs rarely follows a straight path. Aromatic amines routinely serve as the backbone in building pharmacophores. The dual amine functionality allows researchers to experiment with a rich set of transformations, whether that means introducing bulky protecting groups, coupling new fragments, or developing new ligands for catalysts. Bromine, as a leaving group, functions as a launchpad for Suzuki, Heck, or Buchwald-Hartwig reactions, key pillars in modern organic chemistry.

    I remember a project that hinged entirely on the successful functionalization of a pyridine ring. Standard diaminopyridine offered too few options for fast modification. Swapping in 4-Bromo-2,6-Diaminopyridine unlocked routes that were previously off the table. Suddenly, complex scaffolds appeared reachable with less fuss over yield and purity. The work got done faster and at a lower cost, which made a real difference to both lab morale and the project’s bottom line.

    Specifications Drive Confidence

    Users often judge a product by its data sheet. With molecules like this one, experience working hands-on offers a better sense of what specifications matter most. Whether it’s purity, crystal form, solubility, or melting point, these details directly impact workflow. Purity levels greater than 98% mean fewer headaches during purification stages. Analytical labs look for a stable melting point—a range that signals solid quality control during manufacturing. The typical form is a pale or off-white powder, and this subtlety matters more than one might expect. A batch lacking consistency or showing unusual color can throw off trust, not to mention results in sensitive assays.

    From an operational standpoint, ease of handling also sits high on the list. The model’s weight and grain size can influence metering and dissolution, especially when dealing with automated equipment. Large, aggregated lumps waste time and introduce error, while a free-flowing, homogenous powder fits right into reactors or sample tubes. Packaging, too, makes its mark. Factories running multi-stage syntheses often appreciate moisture-resistant containers or easy-access pouches, sparing unnecessary downtime during production runs.

    Comparing with Similar Chemicals

    Sometimes, buyers eye structurally related pyridine derivatives, contemplating whether a cheaper or more widely available option might serve as a sensible substitute. Here experience cautions: swapping in 2,6-Diaminopyridine without bromination often blocks downstream coupling reactions. Using a mono-brominated, single-amino analog trims synthetic versatility, especially for projects that rely on two-point derivatization. Even broader structural analogs like substituted quinolines don’t offer the same balance of reactivity and selectivity.

    Anecdotally, I’ve seen several projects stall out or balloon in complexity when a non-expert opted for a “nearly equivalent” compound. The lost time and extra purification steps rarely justify the short-term savings. Over the years, chemists and procurement specialists settle on 4-Bromo-2,6-Diaminopyridine as a go-to solution for a reason: the trade-offs simply don’t stack up when looked at with the whole process in mind.

    Where the Demand Grows

    Looking across the wider marketplace, several sectors now depend on reliable intermediates. Pharmaceutical companies chase shorter and greener routes to blockbuster drugs or generics. Researchers in agrochemicals hunt for new herbicides or growth regulators, each demanding their own subtle tweaks to aromatic cores. Dyestuff manufacturers, often unsung, still seek fresh hues, fastness improvements, or safer synthetic ingredients.

    From an environmental and safety perspective, fewer process steps and the use of highly reactive intermediates support both compliance and sustainability goals. Regulatory scrutiny wades ever deeper into even “low-risk” chemicals, pushing organizations to double down on substances with a clear pedigree and trusted supply chains. I’ve seen clients ask pointed questions about traceability and lifecycle assessments, unwilling to accept outdated or ambiguous sourcing practices. The right intermediate, sourced responsibly, pays off in both compliance and end-user trust.

    Beyond the Lab: Storage, Safety, and Handling Realities

    A big part of product reliability comes down to daily logistics. 4-Bromo-2,6-Diaminopyridine behaves predictably compared to less stable analogs, but it still calls for respect. Moisture, heat, and incompatible materials can degrade sensitive compounds, undercutting not just yields but safety. Strict storage protocols—cool, dry spaces—aren’t luxury; they prevent decomposition and ensure every gram delivers its intended performance.

    Personal protective equipment makes a difference, and well-labeled packaging goes a long way. Transparency in hazard labeling, batch tracing, and shelf life offers reassurances to teams juggling tight schedules and high throughput. Having spent time as both a bench chemist and a process manager, I know that routine can slip when teams feel rushed. That’s where clear SOPs and smart container design step in, minimizing risk and cleanup headaches. In collaborative projects, these small touches build confidence between teams—everyone trusts the data, the samples, and each other.

    Supply Chain Challenges and Trust

    The past few years have shaken the chemical supply world. Disruptions, shortages, and shifting global routes brought more attention than ever to the question: Who can deliver, on time and to spec? In 4-Bromo-2,6-Diaminopyridine’s market, consistency matters. End-users—from major pharma to university labs—expect more than just a bottle with a label: they need traceable origin, documented quality checks, and real customer support.

    I recall a scramble during a sudden shortage. The scramble to source from second-tier suppliers led to late shipments, material that flunked specification, and at least one failed pilot run. A few months of chaos left scars: procurement teams doubled down on approved vendor lists, tighter audits, and site visits. Often, the best results come from sticking with established, reputable manufacturers, even when a cut-rate deal crops up elsewhere.

    Emerging Applications: Future Paths for 4-Bromo-2,6-Diaminopyridine

    With more sectors leaning into fine chemical customization, new uses keep surfacing. Medical research keeps pushing for ever-more-specific molecular tools, testing mechanisms that target diseases with pinpoint accuracy. 4-Bromo-2,6-Diaminopyridine’s structure grants access to novel heterocyclic frameworks, feeding into discoveries across antivirals, neuroactive compounds, and enzyme inhibitors.

    Materials science counts on intermediates like this for designing smarter polymers, novel resins, or colorants that perform under tough conditions. For instance, reactive amine groups can anchor new sidechains or functional ends, while bromine activation invites step-economical coupling with other monomers. The flexibility keeps creative routes open without the penalty of multiple protection and deprotection cycles. Sometimes, innovations start not at the macro level, but at the atomic—picking the right intermediate can set a project down a path toward cleaner, faster, or more cost-effective production.

    Why Details Matter: Avoiding Pitfalls in Application

    Chemical handling comes with hazards both obvious and hidden. While major risks get flagged on documentation, real-world practice uncovers subtler snags. Hygroscopicity, trace metal contamination, or even lot-to-lot color changes create issues in fast-moving R&D or scaled-up synthesis. Confident users double-check with their supplier: is this batch fresh, stored right, and backed by current analysis? The most respected suppliers field these questions fast, with data to back up every claim.

    Disposal and downstream fate matter too, especially with increasing regulation focused on halogenated organics. Sustainable companies keep tabs on routes of elimination, tailor containment protocols, and train staff on best practices for waste collection. Herding these details makes a difference—minimal unreacted product means easier cleanup, less environmental risk, and smoother operation overall.

    Pushing for Better: Solutions and Industry Best Practices

    Not every challenge has a simple fix, but the industry conversation keeps moving. One answer comes through collaborative partnerships. Buyers, researchers, and producers exchange data and feedback, tweaking specs or suggesting innovations. Sometimes, new purification steps cut out trace contaminants; other times, switching up packaging staves off moisture ingress. The best relationships rely on continuous improvement, not complacency or outdated SOPs.

    Training stays vital. Experienced teams teach new hires the quirks of handling specific actives, sharing stories about what to watch for and how to adapt if something seems off. Standardized procedures get updated with field input—no more relying on outdated manuals or generic chemical handling guides. That way, each shipment finds its place with minimal delay, and teams operate with greater trust, speed, and safety.

    Technology lends a hand. Remote inventory monitoring, sample tracking, and digital analytics foster transparency. Supply chain partners who invest in robust digital systems can offer early warnings about backorders or changed lead times, letting labs pivot before projects stall. I’ve seen teams avoid costly mistakes by spotting trends or small shifts in quality control data, long before those became customer complaints.

    The Human Element: Trust, Communication, and Shared Experience

    Every specialty product thrives or fades by the experience of its users. Chemical researchers, production specialists, and procurement teams all tune into stories from their peers. Good suppliers field questions with candor, admit limitations, and work through problems rather than brushing over them. Teams that cultivate open lines of communication—between labs, supply partners, and even regulators—catch small flaws before they become show-stoppers.

    Years in this field taught me the value of institutional memory. Many problems arise from forgetting a lesson already learned: batches kept for too long, assumptions about purity, or the hazards of untested substitutions. A good supplier-customer relationship ticks along not just with paperwork, but with the mutual knowledge of past adversity, quick pivots, and shared success.

    Summary: 4-Bromo-2,6-Diaminopyridine at the Crossroads of Progress

    Through trial, error, and new discovery, products like 4-Bromo-2,6-Diaminopyridine keep playing pivotal roles in modern industry. They don’t just fill catalog pages—they enable faster, cleaner, and more responsible science. If you walk through a facility or crack open a research journal, you’ll find the footprints of reliable intermediates in next-generation medicines, sustainable crops, and smart materials.

    Smart buyers ask about more than just specifications. They want tested performance, honest safety data, and the assurance that each lot meets or exceeds tough standards. That confidence doesn’t appear overnight; it comes from persistence, problem solving, and building trust in both material and partner. Whether you’re running a benchtop reaction or scaling up for a pilot plant, take pride in demanding better. Every step toward reliability and openness pays off in the run, shaping a future where innovation and confidence grow side by side.