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4-Bromo-3-Methylpyridine

    • Product Name 4-Bromo-3-Methylpyridine
    • Alias 4-Bromo-3-picoline
    • Einecs 870-95-5
    • 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

    676556

    Cas Number 3430-18-0
    Molecular Formula C6H6BrN
    Molecular Weight 172.02
    Iupac Name 4-Bromo-3-methylpyridine
    Appearance Colorless to pale yellow liquid
    Boiling Point 204-206°C
    Melting Point -31°C
    Density 1.498 g/cm³
    Refractive Index 1.569
    Purity ≥98%
    Solubility In Water Slightly soluble
    Smiles CC1=C(C=CN=C1)Br
    Canonical Smiles CC1=C(C=CN=C1)Br
    Inchi InChI=1S/C6H6BrN/c1-5-4-8-3-2-6(5)7/h2-4H,1H3
    Synonyms 3-Methyl-4-bromopyridine

    As an accredited 4-Bromo-3-Methylpyridine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 4-Bromo-3-Methylpyridine, 25g, supplied in an amber glass bottle with a tightly sealed cap, labeled with safety and hazard information.
    Shipping 4-Bromo-3-Methylpyridine is shipped in tightly sealed containers, protected from moisture and incompatible materials. The package is labeled according to chemical safety regulations, and typically transported as a non-hazardous material. Shipments comply with international shipping standards, ensuring safe handling. Temperature and ventilation controls may be applied as required by safety data sheet recommendations.
    Storage 4-Bromo-3-Methylpyridine should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from sources of ignition, heat, and direct sunlight. Keep away from strong oxidizing agents and incompatible materials. Store under inert atmosphere if possible. Ensure proper labeling and secure storage to prevent leaks or spills. Handle with appropriate personal protective equipment.
    Application of 4-Bromo-3-Methylpyridine

    Applications of 4-Bromo-3-Methylpyridine in Industrial Manufacturing

    As a direct manufacturer, we supply 4-Bromo-3-Methylpyridine for integration into advanced chemical synthesis workflows. This pyridine derivative performs critical intermediate functions across pharmaceutical, agrochemical, and materials production processes. Below are the major industrial application scenarios where technology leaders utilize this compound for precise downstream processes.

    1. Pharmaceutical Active Ingredient Synthesis

    Within API manufacturing, 4-Bromo-3-Methylpyridine serves as a key building block in the introduction of methylated pyridine rings during the multistep synthesis of kinase inhibitors and other small molecule drugs. Custom pharmaceutical routes employ it for Suzuki and Buchwald coupling steps, especially for the assembly of scaffolds used in oncology and CNS drug pipelines. High-purity grades are required to meet process validation and regulatory audit demands, with custom batch sizes supporting both pilot and commercial production lots.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • 21 CFR Parts 210/211 (US FDA)
    • Ph. Eur. Monograph Compliance for intermediates
    • ISO 9001:2015 Quality Management System

    Typical usage ratio

    • 0.2 – 0.6 molar equivalents per synthetic sequence; precise stoichiometry adjusted based on targeted molecular structure and impurity profile requirements

    Downstream process integration

    • Employed in palladium-catalyzed cross-coupling or nucleophilic substitution reactors during mid-stage stepwise synthesis

    Final product types

    • Anticancer agents (e.g., PI3K inhibitors, BTK inhibitors)
    • CNS medications & cognitive disorder drugs
    • Clinical trial seed compounds and advanced pharmaceutical intermediates
    • Regulatory submission APIs requiring pyridine substructures

    2. Agrochemical Pyridine Derivative Production

    The molecule acts as a critical intermediate for pyridine-based herbicide and fungicide synthesis, enabling chlorination and amination transformations that yield functionalized active substances. Agrochemical producers benefit from its reliable reactivity and consistent lot quality during scale-up and campaign manufacturing, supporting efficient protection or growth enhancement compound blends for commercial agriculture.

    Industry compliance standards

    • FAO/WHO International Code of Conduct on Pesticide Management
    • GB 2763-2021 Maximum Residue Limits for Pesticides in Food (China)
    • REACH Regulation (EC) No. 1907/2006
    • ISO 14001 (environmental management for chemical operations)

    Typical usage ratio

    • 0.1 – 0.5 molar equivalents per formatted technical product blend; determined by downstream target molecular structure and yield requirements

    Downstream process integration

    • Introduced in fixed-bed or continuous stirred-tank reactors for further functionalization via halogenation or amination prior to formulation of technical-grade active ingredients

    Final product types

    • Pre-emergent herbicide actives (e.g., pyridinecarboxylic acid derivatives)
    • Fungicide intermediates for cereals and cotton
    • Technical concentrations for bulk formulation blending

    3. Fine Chemicals: Photoinitiators and Specialty Monomers

    Specialty chemical manufacturers leverage this building block in the creation of pyridine-containing photoinitiators, monomers, and ligands used in UV-cured coatings, adhesives, and optoelectronic applications. The substituted pyridine ring provides site-selectivity for further functionalization, supporting downstream coupling or polymerization reactions under controlled batch or continuous flow conditions required by stringent end-market specifications.

    Industry compliance standards

    • ISO 9001:2015 (Fine Chemical Manufacturing)
    • RoHS Directive (2011/65/EU) for electronics-related chemicals
    • SOCMA (Society of Chemical Manufacturers & Affiliates) ChemStewards Program
    • REACH Regulation (EC) No. 1907/2006 (substance registrations and notifications)

    Typical usage ratio

    • 0.15 – 0.35 molar equivalents as precursor/intermediate based on photoinitiator or monomer end-use design; modified according to polymer backbone requirements

    Downstream process integration

    • Reacted in controlled substitution steps; utilized early in the synthesis of initiator core structure, then introduced into coupling or ring-closure reactions for specialty monomers

    Final product types

    • UV and electron-beam photoinitiators for inks/varnishes
    • Pyridine-functionalized monomers for polymeric coatings
    • Coordination ligands for specialty catalysts

    4. Advanced Material Science: Heterocyclic Scaffold Manufacturing

    In advanced materials research and specialty heterocyclic polymer production, this compound plays a role in the construction of customized scaffold architectures. Research institutes and material innovators use it as a precursor to design conjugated structures for electronic, photonic, or sensor materials, taking advantage of the reactivity of its bromo and methyl substitutions for further functionalization strategies.

    Industry compliance standards

    • ISO 17025 (testing and calibration laboratories for material science)
    • RoHS for electronic material safety
    • REACH substance compliance (pre-registration of specialty intermediates)
    • Laboratory-specific material validation protocols (customized per research project)

    Typical usage ratio

    • 0.05 – 0.2 molar equivalents, adjusted based on target molecular weight of heterocyclic scaffold and degree of polymerization

    Downstream process integration

    • Employed at the initial step of material synthesis as a core heterocycle source, followed by stepwise substitution or coupling for backbone extension, prior to further polymer processing or device fabrication

    Final product types

    • Research-scale conductive polymers
    • Functional sensor materials with pyridine-based scaffolds
    • Prototype optoelectronic films

    5. Veterinary Pharmaceuticals Intermediate Manufacturing

    Animal health formulators incorporate 4-Bromo-3-Methylpyridine as an intermediate in synthetic routes for pyridine-containing veterinary actives. These applications support the production of compounds used in antiparasitic products and feed additive intermediates, where batch-to-batch purity and traceability are critical for compliance with animal drug regulatory agencies. The compound’s substitution pattern ensures efficient downstream transformations during veterinary-focused API synthesis.

    Industry compliance standards

    • VICH GL10 GMP for Active Pharmaceutical Ingredients in Veterinary Medicinal Products
    • 21 CFR Part 514 (US FDA, New Animal Drug Applications)
    • EU Regulation 2019/6 (Veterinary Medicinal Products)
    • ISO 9001:2015 (Veterinary product manufacturing quality systems)

    Typical usage ratio

    • 0.12 – 0.38 molar equivalents per veterinary API synthetic sequence; altered according to desired impurity specification and target animal species

    Downstream process integration

    • Integrated during early or mid-stage chemical synthesis involving bromo-pyridine coupling, forming core active moieties for antiparasitic and supplementary feed actives

    Final product types

    • Pyridine-derived veterinary antiparasitics
    • Growth enhancer and feed additive intermediates
    • Compounds for large- and small-animal oral suspensions
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    Certification & Compliance
    More Introduction

    Getting to Know 4-Bromo-3-Methylpyridine: An Editorial Introduction

    Turning the pages of chemical innovation, it’s easy to skip over uncelebrated intermediates that do the quiet heavy lifting. Among these is 4-Bromo-3-Methylpyridine, an organic compound that holds real value for researchers and manufacturers striving to keep up with complex synthesis demands. Having worked with a range of heterocyclic building blocks in university labs and later during contract research projects, I have come to appreciate just what separates everyday chemicals from the ones that genuinely move the needle in pharmaceutical and material science research. 4-Bromo-3-Methylpyridine isn’t the flashiest name on the shelf, but it shows up where precision and reliability matter.

    What Sets Its Chemistry Apart

    It’s tough to overstate how much the methyl group stuck onto the pyridine ring, right by a bromine atom, can change the way a simple molecule behaves. Chemistry textbooks break down the value of selective halogenation and positional isomerism, but in real work I’ve seen how these properties make all the difference in the lab. The 4-bromo spot on the ring sits ideally placed for pathways that need direct functional group exchanges, and the 3-methyl group keeps unwanted byproducts at bay when mapping out reactions headed for tight specifications. This is not just theory—consistently, 4-Bromo-3-Methylpyridine serves as a pivot point for developing advanced intermediates in the creation of medicines and agrochemicals.

    Beyond being just a source of halogenated pyridine, its fine balance of electron density transforms how chemists approach C–C or C–N coupling reactions. The compound enables more robust Suzuki or Buchwald-Hartwig couplings, which routinely feature in pharmaceutical ingredient synthesis. I have had reactions go noticeably smoother, with fewer purification headaches, when the right pyridine variant is involved.

    The Hands-On Specifications That Matter

    Lab work brings you face to face with the practical qualities that decide whether a chemical earns its keep. For 4-Bromo-3-Methylpyridine, its form as a light brownish solid makes it easier to identify visually, and that comes as a relief during busy bench work. Its melting point, which falls in a straightforward range for organic solids, means less guesswork during crystallization and storage. Solubility tends to line up with most standard organic solvents, so you won’t find yourself hunting for exotic additives just to get it into solution.

    It’s a small thing, but the near-consistent quality from batch to batch, especially with well-sourced material, removes an extra layer of troubleshooting out of scale-ups. The distinctive bromine atom, confirmed through NMR and mass-spec every time I’ve validated a sample, signals to the seasoned eye that this molecule is ready to function as an honest-to-goodness synthetic building block. Storage requires no more than a sealed bottle in the chemical cabinet, shielded from moisture and strong oxidizers, making it low maintenance for most workflows.

    Where It Actually Finds Use

    Listing the applications of 4-Bromo-3-Methylpyridine barely scratches the surface without acknowledging its major impacts. My time supporting drug discovery teams opened my eyes to how such building blocks lay the groundwork for anti-infectives, CNS agents, and experimental cancer therapeutics. Medicinal chemists place enormous weight on how the choice of intermediates improves selectivity, metabolic stability, and overall yield. Here, 4-Bromo-3-Methylpyridine shines as much more than a simple halogenated ring: it anchors the “scaffold hopping” strategies that help move promising molecules from computer models to working therapies.

    The agrochemical industry finds new routes to functionalized pyridine structures thanks to this compound’s unique orientation of the bromo and methyl positions. In crop protection screens, subtle tweaks to the aromatic core can mean the difference between an effective herbicide and a failed lead. A surprising number of dyes, ligands, and functional materials also spring from these versatile intermediates; talking with colleagues in pigment and materials development labs confirms how prized reliable halogenated heterocycles remain for tailored electronic and photonic properties.

    Differentiating Features: Not All Pyridines Work Alike

    Pyridine chemistry is crowded with competitors—4-chloropyridines, methylated derivatives, all manner of functionalized aromatic rings. Sometimes, you only see the differences by applying them to real reactions under industrial timelines. In my hands-on work, switching from 3-bromopyridine to 4-bromo-3-methylpyridine often leads to cleaner endpoint chemistry, higher yield, and fewer surprises mid-process. The steric and electronic nudges from the methyl group impact how molecules align during catalysis, which is a daily concern for anyone tasked with time-sensitive syntheses. For those who have spent a weekend tracing reaction failures, these small distinctions quickly become make-or-break details.

    Differences become even starker during up-scaling. Some chemically similar compounds drag unexpected byproducts or require finicky purification steps under pilot-plant conditions. With 4-Bromo-3-Methylpyridine, the reactivity window lines up with process chemistry methods already trusted across pharma and fine chemical sectors, and this compatibility translates to reliable timelines and less risk—a genuine factor in competitive industrial research.

    Addressing Common Lab and Production Hurdles

    Everyone who spends any time behind a fume hood knows that real chemical use comes with challenges ranging from supply chain snags to handling quirks. In one joint project with a local generics company, we hit a roadblock sourcing a halogenated intermediate when their regular supplier went offline. 4-Bromo-3-Methylpyridine, though, turned out to be one of the chemicals with broader global availability, standing out among niche compounds often subject to tight regional quotas or specialty regulations. Reliable sourcing tracks back to steady demand in pharma and material science supply chains, which keeps it on the market, unlike unproven new reagents.

    Handling issues never fully disappear, but the relative stability of this compound makes it less fussy than some others. There are no hyper-reactive nitro groups or pyrophoric hazards to manage, so routine containment and ventilation guidelines suffice in most settings. As always, personal protective equipment and good training trump any single property in keeping things safe—advice that has served me well through both student projects and scaled-up campaigns.

    Why Chemists Keep Recommending It

    A look at recent literature and patent filings paints a clear picture: researchers and formulation specialists alike continue to lean on 4-Bromo-3-Methylpyridine for one unglamorous reason—it helps deliver targets with fewer roadblocks. Speaking directly with people who regularly design custom synthesis paths, the simple truth comes out: compounds like this reduce the number of synthetic steps, lower costs, and speed up iterative development. Whether designing CNS-active rings, new ligand scaffolds, or functionalized molecules used in solar energy research, the coupling-ready 4-bromo group does its job without introducing excess risk or operability issues.

    During industry conferences and webinars, process chemists often highlight compounds with both a methyl group and a bromine in meta and para positions as especially useful for tuning solubility, metabolic resistance, and reactivity without triggering red flags on toxicity screens. Having personally coached junior chemists who spent hours troubleshooting less robust intermediates, I can vouch for how much time a reliable substrate saves even in well-controlled environments.

    Looking for Solutions: Improving Adoption and Handling

    Though 4-Bromo-3-Methylpyridine offers clear advantages, challenges remain that deserve attention. Price volatility for specialty organic chemicals can frustrate both academic and commercial labs. One practical improvement for broader adoption would be deeper partnerships between chemical manufacturers and research users, aimed at more transparent demand forecasting. This approach has been gaining traction in the pharmaceutical sector, driving proactive inventory strategies and reducing supply disruptions.

    Another area ripe for progress: standardized characterization. Even subtle batch differences in moisture content or purity skew sensitive reactions, especially in medicinal chemistry and electronic materials research. More suppliers are starting to provide richer analytical data—think full spectra, trace impurity reports, and validated shelf life testing—to help labs trust new lots straight out of the box. Having lost hours chasing obscure impurities in the past, I see real payoff in supporting these improvements.

    Sustainability also bubbles up as a topic with every new chemistry cycle. As someone who has watched colleagues weigh “greenness” against established synthetic methods, increasing the spectral purity and lowering energy requirements for 4-Bromo-3-Methylpyridine synthesis matters. Emerging catalytic techniques using renewable feedstocks and milder reaction conditions signal a future for chemical building blocks that balances performance, accessibility, and environmental responsibility. Changing these roots takes industry commitment and regulatory support, but the shift is real and gaining speed as markets prioritize lifecycle impact and circular supply chains.

    Supporting Better Outcomes Across Sectors

    What continues to surprise me is just how many fields rely on well-characterized heterocyclic building blocks like 4-Bromo-3-Methylpyridine. In academic labs, advanced undergraduate and grad students use it as a launching point for everything from metallorganic frameworks to fluorescent probes. Biotech startups test new molecular designs for disease targeting, citing the flexibility of these small synthesized motifs as a critical asset in navigating FDA approval trails and tightening patent landscapes.

    Materials science teams create advanced polymers, coatings, and optoelectronic layers through substitutions or further elaborations starting from this compound. As someone who has followed innovation contests and startup accelerators, I can say that the pipeline for next-generation flexible electronics or specialized adhesives still depends on cost-effective, modular intermediates. Consistent quality gives developers the freedom to pursue more risk in applications, not chemistry basics.

    Even quality control and analytical teams find value in a well-understood compound like this. NMR and HPLC standards using 4-Bromo-3-Methylpyridine help calibration engineers dial in instrument setups, which supports everything from basic batch checks to high-throughput screening platforms. Here, the chemical does double duty—present as both a crucial building block and a quietly reliable reference material.

    Embracing the “Small Stuff”: Why Details Count

    Month after month, the success or failure of research projects frequently comes down to whether the right foundational materials show up on time and in spec. Learning this the slow way, through setbacks and troubleshooting, taught me to respect the details that go into careful chemical choice. 4-Bromo-3-Methylpyridine, packed into its unremarkable bottle, has earned a place on many shortlists because its tangible benefits add up in the real world, not just in catalogs or sales pitches.

    As chemical supply chain resilience becomes critical for international research, compounds like this gain even more strategic significance. Supply interruptions have highlighted why redundancy and versatility in building block selection matter. The importance of “small” choices grows when project timelines run tight or budgets get squeezed—from grant-funded research teams to global pharmaceutical majors.

    Building on Trust: The Human Side of Chemistry

    Scrolling through publications and patents reveals another part to this story—the sense of community that forms around trusted chemical intermediates. Chemists old and new drop quick notes on forums or in publications about which lots run best, or when to expect short-term shortages. There’s a kind of informal stewardship that develops, a passing-down of experience and cautionary tales about working smartly with each new batch. I have benefited from this wisdom, shared freely from mentors and collaborators who know the ropes.

    Commitment to sharing not only the “what” but also the “how” and “why” behind chemical choices helps the whole field raise its game. Colleagues recommend vendors based on ease of verification, response times, and consistent support in managing questions or scale-up requests. This echoes the larger goals behind E-E-A-T principles—giving future users not just data, but practical, experience-backed guidance that cuts through market hype. Sitting in countless peer review meetings and “troubleshooting sessions,” I’ve found that honest assessments about intermediates like 4-Bromo-3-Methylpyridine set apart real contributors from the armchair theorists.

    Potential Next Steps: Moving the Field Forward

    As more teams embrace data-driven approaches in chemical R&D, the case for improved traceability and digital integration grows. For a compound like 4-Bromo-3-Methylpyridine, blockchain tracking or embedded QR-coded certificates could soon become the norm—minimizing mislabeling risk and ensuring a pedigree of purity. My experience digitizing inventory systems points to how immediate access to analytical reports and sourcing histories trims waste and raises user confidence. These digital threads add an extra layer of trust critical for quality-driven research, especially as intellectual property and regulatory pressures mount.

    In the classroom, clear case studies showing the journey from small building blocks to lifesaving drugs or innovative coatings inspire the next generation of chemists to take molecular choices seriously. Highlighting the journey and problem-solving around 4-Bromo-3-Methylpyridine connects the dots between foundational organic synthesis and the advanced technologies shaping our daily lives—from safer medicines and greener crops to more durable materials powering clean energy advances.

    Final Thoughts on Its Ongoing Role

    Having watched trends ebb and flow in both academic and commercial chemistry, I can say that 4-Bromo-3-Methylpyridine holds onto its spot not because of bold claims, but due to years of reliable performance and quietly expanding impact. It demonstrates how much thoughtful chemistry depends not only on breakthroughs, but on thousands of informed decisions about which ingredients deliver trustworthy, scalable workflows without slowing progress down.

    Standing with peers who share a respect for the craft, I’ve come to see these accessible, well-tested building blocks as the backbone of real laboratory progress—not just background noise. The ongoing search for better, safer, and more versatile chemical syntheses ultimately circles back to compounds like 4-Bromo-3-Methylpyridine, whose dependable chemistry and widespread availability support innovation at every stage. For anyone eager to build real value—whether in life science research, material applications, or simply keeping the workhorse chemistry running day after day—this compound remains firmly in the spotlight, not for show, but for solid, proven service.