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4-Bromo-6-Chloroquinoline

    • Product Name 4-Bromo-6-Chloroquinoline
    • Alias 4-Bromo-6-chloroquinoline
    • Einecs 629-665-7
    • 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

    122862

    Productname 4-Bromo-6-Chloroquinoline
    Casnumber 119722-16-6
    Molecularformula C9H4BrClN
    Molecularweight 242.49 g/mol
    Appearance Pale yellow to white crystalline powder
    Meltingpoint 88-91°C
    Purity Typically >98%
    Solubility Slightly soluble in DMSO and DMF
    Smiles Brc1cc2ccnc(Cl)cc2cc1
    Inchi InChI=1S/C9H4BrClN/c10-6-2-3-8-7(4-6)1-5-12-9(8)11/h1-5H
    Storage Store in a cool, dry place, tightly closed

    As an accredited 4-Bromo-6-Chloroquinoline 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-6-Chloroquinoline

    Applications of 4-Bromo-6-Chloroquinoline in Industrial Manufacturing

    4-Bromo-6-Chloroquinoline is a specialty heterocyclic compound produced under tightly controlled reaction conditions, finding critical use in several downstream industrial sectors. This section details current, real-world application scenarios with a focus on compliance, dosage, processing details, and finished goods for B2B users in chemical and pharmaceutical manufacturing.

    1. Active Pharmaceutical Ingredient (API) Intermediate Synthesis

    This compound is an essential building block in the synthesis of various quinoline-derivative APIs, especially for antimalarial and antibacterial projects. Its halogenated structure allows for selective substitution during late-stage pharmaceutical intermediate production. Pharmaceutical manufacturers integrate it in the early stages of multi-step syntheses, typically downstream of nitroquinoline formation and preceding cyclization or further halogenation steps for final API assembly.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • EU GMP Volume 4 Part II
    • US FDA 21 CFR Part 211
    • Ph. Eur. 11th Edition Monograph Reference

    Typical usage ratio

    • API intermediate batches use 4-12% molar equivalents, adjusted by target intermediate quantity, purity requirements, and process yield specifications

    Downstream process integration

    • Introduced post-nitration, pre-condensation or alkylation stage
    • Reacted under controlled temperature (80-120°C) in aprotic solvents
    • Purification via crystallization or column chromatography before next coupling reaction

    Final product types

    • Antimalarial drug APIs such as amodiaquine analogues
    • Antibacterial agents derived from quinoline scaffolds
    • Research intermediates for kinase inhibitors

    2. Agrochemical Intermediate for Fungicide Synthesis

    Industrial-scale agroscience manufacturers utilize this material for devising complex quinoline-derived fungicides. Its halogen atoms facilitate precision functional group transformations. The compound enters downstream processes post-coupling, particularly in nucleophilic aromatic substitution to introduce diverse side chains necessary for efficacy and environmental resistance profiles, essential in regulated agricultural chemical production.

    Industry compliance standards

    • FAO/WHO Codex Alimentarius for Pesticide Residues
    • ISO 9001:2015 Quality Management for Agrochemical Production
    • European Regulation (EC) No 1107/2009
    • China GB 2763-2023 Maximum Residue Limits for Pesticides

    Typical usage ratio

    • Concentration in reaction mass: 5-8% weight/weight basis, dependent on the target fungicide molecule and desired product throughput

    Downstream process integration

    • Added post-principal quinoline ring assembly
    • Employed in nucleophilic substitution to incorporate aliphatic or aromatic residues
    • Followed by controlled hydrolysis and crystallization

    Final product types

    • Quinoline-based systemic fungicides for cereal crops
    • Protective agents in seed treatment formulations
    • Precursor chemicals used in eco-toxicology trials

    3. Specialty Dye and Pigment Intermediate

    Manufacturers in the dye and pigment sector deploy this compound as a key intermediate during heterocycle modification steps, especially in the creation of high-performance, lightfast pigments. Its dual-halogen substitution enables chemoselective cross-coupling essential for tuning dye solubility and UV absorption properties. The material is introduced after the core quinoline skeleton formation and prior to azo-coupling or metallization steps.

    Industry compliance standards

    • OEKO-TEX® Standard 100 (textile chemicals safety)
    • REACH Annex XVII and SVHC Restrictions (EU)
    • ISO 9001:2015 Quality Management for Dyes
    • ASTM D4287 for Pigment Quality Control

    Typical usage ratio

    • Intermediate loadings typically between 7-11% on a weight/weight basis, dependant on pigment molecular design and dyeing batch size

    Downstream process integration

    • Engaged after initial quinoline condensation
    • Coupled with diazonium or sulfonation reagents in controlled reactors
    • Subjected to high-temperature calcination or subsequent salt formation

    Final product types

    • High-fastness textile dyes for synthetic and natural fibers
    • Organic pigments for automotive coatings
    • Inkjet pigment dispersions

    4. Electronic Chemicals—OLED Material Synthesis

    Advanced electronics companies employ this compound in the multi-step assembly of quinoline derivatives used as electron-transport or emissive layers in OLED devices. Its bromine and chlorine substitutions provide anchor points for Suzuki or Stille couplings required for large π-conjugated systems. The material is typically introduced at the final coupling stages to ensure high-purity and photo-stability of resulting electroluminescent layers.

    Industry compliance standards

    • IEC 61249 for Electronic Materials Safety
    • JPCA-ES-01 (Japan Printed Circuit Association Standards)
    • ISO 14001:2015 Environmental Management in Electronic Manufacturing
    • RoHS Directive 2011/65/EU, ensuring restricted substances compliance

    Typical usage ratio

    • Reactant molar ratio 3-9%, adjusted by luminescent compound complexity and targeted quantum efficiency

    Downstream process integration

    • Engaged in terminal Suzuki or Stille cross-couplings
    • Reaction in anhydrous, inert atmosphere with palladium catalysis
    • Followed by rigorous purification and thin-film vacuum deposition procedures

    Final product types

    • Electron-transport materials for OLED displays
    • Blue or green emissive materials in flat-panel screens
    • Organic semiconductors for flexible electronics

    5. Research Chemical Synthesis—Heterocyclic Compound Libraries

    Specialty research organizations and contract synthesis labs procure this material to construct diverse heterocyclic libraries used in medicinal chemistry, catalysis studies, and academic projects. The dual-halogen sites support combinatorial synthesis techniques, enabling rapid generation of analogues via site-selective reactions. This compound is introduced as a core backbone reagent, often under mild conditions to preserve functional group integrity during high-throughput reactions.

    Industry compliance standards

    • ISO 17025 Accreditation for Chemical Laboratories
    • OECD Principles of Good Laboratory Practice (GLP)
    • US NIH Guidelines for Research Chemicals
    • Material Safety Data compliance per GHS regulation

    Typical usage ratio

    • Employed at 1-6% molar equivalents per library batch, adjusted according to diversity scheme and reaction scale

    Downstream process integration

    • Incorporated during core ring diversification step using Pd-catalyzed couplings
    • Reaction execution in microwave-assisted or parallel batch reactors
    • Pooled and purified by automated flash chromatography

    Final product types

    • Lead-like quinoline analog libraries for drug screening
    • Reference standards for analytical method development
    • Building blocks for organic functional material studies

    6. Fine Chemical Precursor for Photochemical Applications

    Photoactive material manufacturers utilize this compound as a precursor during the construction of specialized quinoline derivatives for photoinitiator and fluorescent tracer production. Its bromine and chlorine are critical for controlled substitution, tailoring the absorption spectra and reactivity of downstream chromophores. It enters the synthetic workflow post-ring assembly, followed by sequential halogen exchange and photo-crosslinking reactions in UV-reactor environments.

    Industry compliance standards

    • ISO 9001:2015 for Fine Chemical Production
    • REACH Registration for Photochemical Substances
    • ASTM E595 Volatile Content Standards (for photoinitiators)
    • GHS Labeling for Hazardous Compounds

    Typical usage ratio

    • Weight/weight basis at 4-10%, adjusted to target chromophore molecular mass and spectral properties

    Downstream process integration

    • Post-condensation halogen-exchange reactions
    • Catalyzed substitution with photo-reactive groups under UV irradiation
    • Precision chromatographic purification for high-purity output

    Final product types

    • Photoinitiators used in UV-cure adhesives and coatings
    • Fluorescent tracers for environmental and process monitoring
    • Sensitizing agents in specialty printing inks
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    More Introduction

    4-Bromo-6-Chloroquinoline: Advancing Chemical Research and Industrial Synthesis

    Unearthing the Power of 4-Bromo-6-Chloroquinoline

    Chemistry never stands still. Every laboratory I’ve spent time in carried a unique smell, half memory, half promise, all punctuated by bottles of compounds waiting to make tomorrow's breakthroughs real. Among countless bottles, quinoline derivatives occupied a unique spot on the back counter. The list was long, but 4-Bromo-6-Chloroquinoline raised eyebrows because it means business. This compound, with its specific bromo and chloro substitutions, stands out among the usual suspects. Forget routine lab supplies—this stuff speaks to anyone aiming for challenging synthetic undertakings or those with a stake in pharmaceutical or agrochemical innovation.

    Getting Specific: Features That Count

    A chemical’s personality comes through not just in its structure, but in its behavior inside a flask or reactor. For 4-Bromo-6-Chloroquinoline, the formula C9H4BrClN sums up the balance of elements that gives it punch in diverse reactions. A modest yellowish powder, it holds up well in the ambient air, and most labs find it straightforward to store thanks to its stable solid form. Researchers care about melting points, so it’s worth noting this one withstands decent heat before shifting phases; you rarely catch it reacting unexpectedly under normal bench conditions.

    Purity always matters. High-grade samples keep procedures tight, side reactions to a minimum, and results reproducible—a concern every chemist remembers after cleaning up a failed chromatography column. In markets where stringent standards rule, most suppliers deliver assay levels north of 98%. That translates into trust: no guessing games, no double-checking the structure mid-stream.

    Real-World Applications: Where the Compound Excels

    Every chemical needs a reason to earn its shelf space. 4-Bromo-6-Chloroquinoline shows its value in modern organic synthesis, especially for those building heterocyclic scaffolds in pharmaceutical research. Medicinal chemists use these frameworks for one reason—they anchor molecules found in antimalarials, antitumor drugs, and treatments that fight inflammation. Swap a bromine for an amine or swap the chlorine for a Grignard, and suddenly that plain bottle gives birth to whole families of useful compounds.

    Drug discovery always presses forward. My own experience in a university lab underlined how a single new derivative could light up cell assays or hit a breakthrough in selectivity. Compounds like this one offer a sort of versatility—if you want to start with a reliable, richly functionalized quinoline, few choices fit the bill better for palladium-catalyzed cross-couplings or late-stage functionalization.

    It’s not only pharma. Crop science finds quinoline derivatives pulling weight in pesticides and herbicides, and the selectivity these halogenated variants offer can mean the difference between a safe harvest and a failed season. Downtime isn’t an option in field tests—reliable supply of high-quality input chemicals supports ongoing development, season after season.

    Differences from the Ordinary: Standing Apart

    Anyone who’s spent a decade flipping through chemical catalogs will notice: there are plenty of halogenated quinolines. Some companies pour their effort into 6-chloroquinoline itself, or lean on fluoride analogs. 4-Bromo-6-Chloroquinoline stands apart for its dual halogen profile—one bromine, one chlorine, precisely positioned. These two handle reactivity differently. The bromine, less tightly bonded, jumps into substitution reactions more readily. It works as a handle for Suzuki or Sonogashira couplings, opening more pathways than, say, the equivalent iodo derivative, which often gives higher cost with lower thermal stability.

    On the chlorine side, you get selective reactivity. Chlorine isn't a drama queen like its heavier halogen cousins; it stays put until you ask it to move. That combo enables careful stepwise modifications—a feature medicinal chemists appreciate when building complexity without losing control. In practice, this saves time and cost, as you don’t have to shield or block one group just to work on another.

    Compare this compound with mono-halogenated quinolines, and the options for selective cross-coupling or further derivatization leap forward. The backbone’s electronic characteristics tilt toward regioselective activation under standard catalysts, something I’ve seen repeatedly in late-stage synthesis projects. These small advantages, replicated across dozens of syntheses, mean less waste, smoother purification, and cleaner yields.

    Supporting Expertise: Fitting into Modern Chemical Practice

    Real progress in synthetic chemistry never arrives through shortcuts. Careful planning demands reliable inputs. I recall nights prepping reactions where an off-brand intermediate ruined days of work, leading to dead ends and overtime. When a compound like 4-Bromo-6-Chloroquinoline joins a project, teams see doors open for multiple routes to new analogs. Published case studies and peer-reviewed patents point to its effectiveness in supporting the creation of kinase inhibitors, anti-infectives, and small molecule probes crucial for unraveling new biology.

    Experience shapes trust. The chemists I respect expect transparent batch records and spectra—no questions asked. At the quality levels typically available, this compound holds up to scrutiny. Labs working under Good Manufacturing Practice (GMP) or academic purity standards use it to prep libraries where every atom's position matters for downstream analytics.

    Many newer scientists feel outnumbered by catalog choices. The market’s flooded, true. Distinguishing features like dual-halogenation and predictable reactivity pipelines put 4-Bromo-6-Chloroquinoline into shortlists not through hype, but because the evidence stacks up over repeat use in challenging synthetic sequences.

    Supporting Innovation: Opening Doors in Drug and Agrochemical Discovery

    Discovery work never feels done. Each generation faces tougher targets in infection control, cancer, or food security. Success depends on the raw tools handed down. Every researcher knows the frustration of running a synthesis only to find that last key molecule unavailable, or its quality unsuitable for demanding uses. Investing in better intermediates speeds the slow, methodical climb toward a finished drug candidate or crop-protecting agent.

    4-Bromo-6-Chloroquinoline gets woven into this story with regularity. Pharma companies lean on its robust performance for scaffold-building. If an early-stage assay fails, it’s rarely the intermediate’s fault; more often, it’s because teams push the limits, seeing what new anti-infective combinations will do against stubborn pathogens or drug-resistant cell lines. For every dead end, new ideas emerge, skipping unnecessary steps due to the dual-substituted backbone.

    Academic collaboration thrives on choices. Instead of fighting over precious milligrams, electric fish-tank green solutions bubble with the knowledge one compound can map several reaction pathways—bromination here, chlorination there, always making room for something new. This keeps grant-funded research moving rather than bogged down by unreliable sources.

    Quality and Consistency: Keys to Reliable Results

    Poor-quality reagents spell disaster. I still recall frantic troubleshooting after discovering a sample bottle labeled 6-chloroquinoline held uneven, low-purity material. Time lost on purification, wasted columns, and grumbling students taught me the value of starting with high-integrity stock. Reagents like 4-Bromo-6-Chloroquinoline, widely available today from established suppliers, arrive with spectral confirmation and certificate of analysis, ensuring transparency.

    Batch reliability puts an end to reruns and keeps focus on results. This plays out in published work—data shows that controlled reactions deliver expected yields over and over when input material starts at >98% purity, free from troublesome byproducts or cleaning residues.

    Consistency also means broader collaboration. When a team in Shanghai reports success with a certain intermediate, and another in Zurich sees parallel efficiency, the underlying variable tends to be reagent quality. Reliable sources build scientific trust across borders, letting new projects grow from the same proven chemical starting point.

    Environmental and Regulatory Considerations

    Safe chemistry matters. Halogenated intermediates like 4-Bromo-6-Chloroquinoline must meet rigorous expectations not just for product quality, but for environmental responsibility. Labs commit to waste minimization and safe handling, practices cemented by tight internal controls and evolving regulations worldwide. Storage in secure, labeled containers, management of halogenated solvent waste, and use of fume hoods keep risks to a minimum.

    More strictly regulated sectors—think pharmaceuticals bound for clinical use or crop protection agents facing registration—rely on traceability and documentation. Documentation trails reinforce the integrity of experimental data. Choosing trusted suppliers narrows the risk of carrying forward undetected impurities, a lesson hammered home in every scale-up.

    Green chemistry gets prioritized, from improved synthetic routes to waste reduction. Researchers work toward milder reaction conditions and fewer hazardous byproducts when using intermediates, and fine-tune workflows to reclaim or repurpose side streams. These efforts combine with regulatory oversight to keep chemical development both productive and environmentally attentive.

    Meeting Challenges and Finding Solutions

    Demand for innovative, reliable building blocks won’t ease soon. Synthesis grows in complexity every year, as target molecules pile on ring systems or tricky substituents. Compounds such as 4-Bromo-6-Chloroquinoline address real logistical and strategic headaches—avoiding unnecessary synthetic steps, enabling functionalization without repeated protection/deprotection cycles, and supporting rapid route scouting.

    Some issues, like market turbulence or price spikes, need smart sourcing and long-term forecasting. Chemical distributors help buffer these shocks, working to keep pipelines flowing in spite of regulatory shifts or global supply hiccups. Experienced labs keep backup suppliers on call, tap into bulk purchase benefits, and join research consortia to negotiate better access.

    Education shapes a faster-moving, more creative workforce. Open sharing of synthetic schemes and outcomes, ranging from the polished pages of journals to informal preprint repositories, spreads knowledge about what works or fails. This supports those entering the field, giving anyone from the undergraduate bench to the postdoc’s hood a fair shot at success using complex quinoline intermediates.

    The Value in Practical Details

    Success comes from nuts and bolts, not just dreams. Researchers favor versatile chemicals that offer more than one path forward. The dual nature of 4-Bromo-6-Chloroquinoline creates options: each halogen ready for targeted modification, no elaborate protective groups needed, and downstream products compatible with library synthesis or bulk manufacturing.

    Practical experience drives home the value of solid, manageable reagents. Spill a bottle of volatile iodoquinoline and you’ll learn to appreciate less hazardous analogs. Workplace safety and reduced environmental risk partner well with performance in the flask. This kind of pragmatic advantage wins respect across disciplines, from medicinal chemistry to chemical engineering.

    I’ve watched projects pivot in a week because a well-stocked shelf offered a halogenated quinoline few had planned for originally. Breadth of chemical reactivity wasn’t a theory—it sped up proof-of-concept experiments and moved projects forward, fast.

    Collaborative Potential and Cross-Disciplinary Reach

    Chemical innovation rarely happens solo. Teams of biologists, chemists, and process engineers rally around robust intermediates like 4-Bromo-6-Chloroquinoline. The right building blocks give each specialty room to adapt—one group focuses on new ligands for biological screening, another fattens out the compound’s structure to chase after a promising lead.

    This spirit of open-ended exploration reflects the best in modern science. With access to reliable intermediates, research collaborations spring up between industry and academia. Technology transfer offices and shared core labs see greater usage, speeding up the cycle from initial discovery to tangible outcome. The pace accelerates, not because someone tweaks a protocol, but because the starting material removes roadblocks before they arise.

    Personal experience confirms: shared resources make the difference. Given a flexible, high-performing quinoline, teams can attack parallel problems from distinct perspectives, enriching the field while keeping focus on real-world applications.

    Resilient Supply Chains for Progressive Research

    Good ideas sputter without raw materials arriving on time. Recent years—marked by logistical snags—brought home the necessity of diversified sourcing. 4-Bromo-6-Chloroquinoline, now more widely stocked by both specialty chemical markets and mainstream distributors, enjoys the advantage of scalable availability.

    Long-term relationships with verified suppliers pay off during disruptions. Leveraging these contacts, plus forecasting needs for annual projects, ensures ongoing access to this critical intermediate. Strong documentation on both synthesis and supply gives labs confidence, and backup stocks sidestep costly slowdowns.

    Flexible supply lets researchers follow the science, not the warehouse inventory list. The compound’s modular reactivity and secure channel access turn abstract project plans into practical next steps, letting teams iterate faster and publish ahead of competitors bound to less responsive supply chains.

    Looking Ahead: The Next Wave of Opportunities

    The quinoline core earned its place in the medicinal chemistry arsenal, but growth continues. New computational tools point toward hybrid structures where the dual-halogen motif serves as a launching pad for innovative molecular architectures. Among up-and-coming drug strategies, the combination of traditional organic synthesis with machine learning-driven target selection shines new light on established scaffolds like 4-Bromo-6-Chloroquinoline.

    Crowdsourcing of open-access chemical libraries and joint ventures in agricultural science both benefit from established, high-purity compounds. Data from multiple disciplines converge, and discoveries bubble up where solid, trustworthy intermediates underpin ambitious, even high-risk, exploratory runs.

    The next wave of synthesis—AI-assisted retrosynthesis, engineered enzymes, greener solvents—will not succeed without dependable building blocks. Experienced chemists, younger trainees, and interdisciplinary teams rely on materials whose quality matches their aspirations. 4-Bromo-6-Chloroquinoline, far from just another bottle, often sets a foundation for victories both small and substantial.

    Conclusion: Focus on Progress, Not Obstacles

    The history of synthetic chemistry always tracks real materials over buzzwords. Each decade, new applications for quinoline derivatives highlight how a single molecule opens doors that seemed welded shut before. In my own work and from stories traded at conferences or in the lab, 4-Bromo-6-Chloroquinoline demonstrates that the right molecule, built right and supplied consistently, lets progress keep pace with imagination.

    Challenges will always rise—tighter budgets, stricter regulations, new biological targets that shrug off last year’s best efforts. The answer lies not just in chasing breakthroughs, but in supporting the daily grind with substances that work, researchers trust, and results confirm. Year after year, this quinoline stands out because it delivers on that promise, helping move the field one reaction, one discovery, one published step at a time.