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2-Nitro-5-Bromobenzonitrile

    • Product Name 2-Nitro-5-Bromobenzonitrile
    • Alias 2-Bromo-4-cyanonitrobenzene
    • Einecs 629-004-3
    • 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
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    Specifications

    HS Code

    768688

    Product Name 2-Nitro-5-Bromobenzonitrile
    Cas Number 21739-91-7
    Molecular Formula C7H3BrN2O2
    Molecular Weight 227.02 g/mol
    Appearance Light yellow to yellow solid
    Melting Point 129-132°C
    Purity Typically ≥98%
    Solubility Slightly soluble in water, soluble in organic solvents
    Smiles C1=CC(=C(C=C1Br)[N+](=O)[O-])C#N
    Inchi InChI=1S/C7H3BrN2O2/c8-6-1-2-7(10(11)12)5(3-6)4-9
    Synonyms 5-Bromo-2-nitrobenzonitrile
    Storage Store in a cool, dry place, tightly closed

    As an accredited 2-Nitro-5-Bromobenzonitrile factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

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    Application of 2-Nitro-5-Bromobenzonitrile

    Applications of 2-Nitro-5-Bromobenzonitrile in Industrial Manufacturing

    2-Nitro-5-Bromobenzonitrile plays a key role across several specialized chemical synthesis fields, where its molecular features support highly selective transformations. Our clients in pharmaceuticals, agrochemicals, and material science consistently integrate this intermediate for its reactivity and process reliability. We maintain active collaborations with major downstream manufacturers to ensure our production aligns with the latest regulatory, formulation, and process standards.

    1. Pharmaceutical Intermediate Synthesis

    Research-driven pharmaceutical companies use this compound as a building block in API development, harnessing its nitrile and halogen functionalities to complete complex heterocyclic ring systems. Chemists rely on its precise substitution pattern for efficient C–N and C–C bond formation in advanced synthetic routes for kinase inhibitors, antivirals, and specialty small molecules.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • USP/NF monograph requirements for impurities and solvent residues
    • EDQM CEP certification processes
    • FDA 21 CFR Part 211 process control for pharmaceutical intermediates

    Typical usage ratio

    • 0.8% – 2.5% by weight in batch or continuous-flow synthesis, adjusted to molecular stoichiometry of the target intermediate

    Downstream process integration

    • Introduced during the nucleophilic aromatic substitution or palladium-catalyzed coupling step
    • Further functionalized in hydrogenation, hydrolysis, or cyclization stages
    • Quality control includes HPLC and NMR to monitor conversion and trace impurities

    Final product types

    • Kinase inhibitor intermediates
    • Pyridine and pyrimidine-based APIs
    • Nitroaromatic derivatives for CNS drugs
    • Reference standard materials for pharmaceutical QC

    2. Agrochemical Synthesis (Herbicides & Fungicides)

    Major agrochemical producers incorporate this intermediate to develop selective herbicides and fungicides, leveraging the nitro and nitrile groups for downstream chlorination, reduction, and amide coupling. Its high purity profile supports scalable synthesis with reduced by-product contamination, which is critical for toxicity compliance and environmental risk assessment.

    Industry compliance standards

    • FAO/WHO International Code of Conduct on Pesticide Management
    • ISO 9001:2015 management system adherence for traceability
    • REACH Annex XVII for agricultural intermediates
    • GLP (Good Laboratory Practice) requirements for environmental fate studies

    Typical usage ratio

    • 1.2% – 3.5% depending on the target active ingredient and process efficiency; higher ratios for multi-step syntheses

    Downstream process integration

    • Entry point is the aromatic nitrile stage, followed by reduction or coupling with thioether/amine partners
    • Thermal or catalytic scale-up supported by continuous stirred-tank reactors
    • Final isolation through solvent extraction and recrystallization

    Final product types

    • Triazine and pyridine-based herbicide intermediates
    • Broad-spectrum fungicide scaffolds
    • Precursor compounds for environmental fate studies
    • Field test samples for regulatory submissions

    3. OLED and Organic Semiconductor Material Manufacturing

    Leading electronics materials manufacturers employ this intermediate in the design of functional small molecules for OLED emitters, hole transport layers, and semiconductor precursors. Its electron-withdrawing substituents facilitate strong molecular interactions and customizable optoelectronic properties, essential for device efficiency and operational lifetimes.

    Industry compliance standards

    • RoHS (Restriction of Hazardous Substances) Directive compliance
    • ISO 14001 Environmental Management System
    • IEC 61249-2-21 for halogen-free requirements in electronic substrates
    • GB/T 328.17-2019 Technical requirements for organic light-emitting displays

    Typical usage ratio

    • 0.5% – 1.4% in solution-phase synthesis, tailored to molecular loading for specific device architectures

    Downstream process integration

    • Introduced during Grignard or Suzuki–Miyaura coupling to build extended aromatic cores
    • Purified via preparative HPLC or column chromatography to ensure device-grade quality
    • Screened for color purity and thermal stability prior to vacuum deposition

    Final product types

    • Organic light-emitting diode (OLED) emissive layers
    • Hole/electron transport materials for displays
    • Thin-film organic transistor materials
    • OLED panel prototypes and functional device samples

    4. Specialty Dye and Pigment Intermediate

    Producers in the fine dye and pigment sector select this intermediate to synthesize azo and anthraquinone dye backbones, seeking molecular precision to control chromatic strength and solubility for high-end textile and inkjet ink applications. Its halogen and nitro groups ensure strong coupling efficiency in diazotization and reduction pathways without excessive by-product formation.

    Industry compliance standards

    • OEKO-TEX® Standard 100 for restricted substances
    • EN 71-3 Safety of Toys (migration of certain elements) for colorants
    • ZDHC Manufacturing Restricted Substances List (MRSL)
    • ISO 18314 for analytical colorimetry in dyes

    Typical usage ratio

    • 1.0% – 2.8% in dye coupling stages; ratio determined by molecular target and batch yield optimization

    Downstream process integration

    • Enters production during the aromatic amination or reduction to aniline derivatives
    • Diazotization followed by coupling with activated aromatic partners
    • Batch crystallization and colorimetric QC for shade matching

    Final product types

    • High-purity azo dyes for synthetic textiles
    • Anionic and cationic pigments for inkjet and offset printing
    • Specialty colorants for plastics masterbatch
    • Custom dye formulations for laboratory reference

    5. Advanced Chemical Research & Custom Synthesis

    Contract research organizations and chemical R&D labs source this intermediate for pathway optimization and library synthesis, where selectivity, purity, and high substrate reactivity are required for rapid analog development. Its unique substitution pattern enables exploratory chemistry targeting new therapeutic, agrochemical, and materials science candidates.

    Industry compliance standards

    • ISO 17025:2017 Laboratory Accreditation for chemical testing
    • OECD GLP Principles for research traceability
    • USP General Chapter <823> for analytical calibration and impurity profiling
    • Responsible Care® commitment for laboratory safety and chemical stewardship

    Typical usage ratio

    • 0.2% – 2.0%, variable per synthetic route and target compound complexity; small-scale trials adjust ratio based on conversion analysis

    Downstream process integration

    • Common entry in early-stage scaffold or intermediate formation for SAR (structure–activity relationship) projects
    • Description of functional group manipulations (nitrile reduction, aromatic substitution, cross-coupling)
    • Emphasis on micro-scale HPLC/GC-MS QC and preparative purification

    Final product types

    • Small-molecule candidate libraries
    • Reference and analytical standards
    • SAR substrate pools for drug or agrochemical screening
    • Materials science building blocks for exploratory research
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    More Introduction

    Introducing 2-Nitro-5-Bromobenzonitrile: A Practical Perspective

    What Sets 2-Nitro-5-Bromobenzonitrile Apart

    2-Nitro-5-Bromobenzonitrile doesn’t get much attention outside of specialized discussions, but those who handle fine chemicals and intermediates know its value. This aromatic compound, built on a benzene ring with nitro, bromo, and nitrile substituents, brings a lot to the table for chemists working across agrochemicals, pharmaceuticals, and advanced material research. Sitting at the intersection of utility and reactivity, 2-Nitro-5-Bromobenzonitrile stands out because of its carefully chosen functional groups—a combination that isn't just about ticking boxes on a substrate map, but about unlocking synthesis options that stay relevant as research moves forward.

    Breaking Down the Chemistry

    Picture its chemical formula, C7H3BrN2O2. The presence of both a strongly electron-withdrawing nitro group and a reactive aromatic bromine sets up the molecule for a range of substitutions and couplings. The nitrile group tacked onto the ring offers even more, acting as a handle for further modifications. Working in a lab myself, I've watched how a nitrile can serve as gateway for many different heterocycle syntheses, which keeps this material in demand. Compared to compounds with only single or less-reactive substitutions, 2-Nitro-5-Bromobenzonitrile belongs in the toolkit of anyone who expects unexpected synthesis challenges down the line.

    Real-World Uses

    Every product in fine chemical supply claims some broad utility, but synthetic chemists look for workflow compatibility and actual problem solving. 2-Nitro-5-Bromobenzonitrile fits into Suzuki couplings or nucleophilic aromatic substitutions, letting chemists quickly build complexity onto simpler scaffolds. In situations where a pharmaceutically active compound needs a strategic bromination or a nitro group to tweak electronic properties, it becomes obvious why this molecule matters. I've seen teams turn to it when standard benzonitriles stall; the extra nitro group can make or break a molecule’s usefulness as an intermediate. This isn't about covering every base—it's about what actually moves a project forward.

    Standard Specification—But With Purpose

    The standard purity—usually benchmarked at ninety-eight percent or higher—matters less as a bragging point and more because it means researchers don’t spend hours troubleshooting reactions that should have worked the first time. A tight melting point range means fewer purification headaches and less wasted time on rework. Grams or kilos, both academic and industrial users expect batch-to-batch consistency, and suppliers of this product know word gets around quickly if a source can't maintain tight specs. For me, running quality checks on shipment after shipment, it’s never just paperwork—it’s the difference between a productive day and another lost to redoing the same experiment.

    Comparing with Related Intermediates

    A common question: why not just use a simpler benzonitrile or maybe a para-bromonitro analogue? The answer comes down to selectivity. Placement of functional groups in the 2,5-positions eliminates certain side reactions and opens others, shaping the downstream products in ways a 4-substituted molecule doesn’t. Take nucleophilic aromatic substitution: the ortho effect of that adjacent nitro group speeds up reactions, something that's been demonstrated again and again in kinetic studies. The difference shows up where it matters—in higher yields, cleaner purifications, and sometimes in the successful completion of syntheses that looked doomed with other intermediates. There’s nothing outlandish here—the advantage is incremental but crucial when a project deadline is close or an intermediate blocks scale-up.

    Challenges Seen in Routine Use

    A material like this isn’t all smooth sailing. Its strong electron-withdrawing groups demand care in handling and storage. Moisture and ambient light can push unwanted transformations, so proper containment makes a real difference in shelf life. In group meetings, we’ve swapped stories of product degradation—learning that the right desiccant or amber glass container isn’t just a recommendation, it’s a safeguard. Also, its bromine content means waste channels require attention to avoid environmental headaches. Teams get frustrated with extra steps in disposal or recycling, but these routines keep the work compliant and responsible.

    Health and Safety Concerns

    Most bench chemists have inhaled a little more than they planned over the years, so reviewing a new chemical’s safety data never feels like a formality. The nitro and nitrile groups demand gloves, eye protection, and good ventilation. Lab protocols usually call for immediate cleanup of spills and careful management of dust since prolonged exposure can sensitize skin or irritate airways. Trusting a supplier doesn't mean skipping your own safety checks—in fact, experienced labs often run their own small-scale toxicity screens, just to be sure nothing catches them off guard. Simple respect for the material saves trouble down the line.

    How Labs Fit 2-Nitro-5-Bromobenzonitrile Into Their Process

    The adoption curve for any chemical gets shaped by local practice and real-world demands. Some research groups treat 2-Nitro-5-Bromobenzonitrile as a routine building block, running parallel reactions or automated processes that rely on its predictable behavior. Small startups and academic groups might use it for targeted modifications—testing new biological activities or patentable analogues. Its solubility in common organic solvents saves time prepping solutions, and its stability under inert atmosphere lets chemists run long reactions without worrying about losing product to side reactions. I’ve seen projects pivot mid-stream to leverage its dual functionality, reworking synthetic routes to simplify protection-deprotection steps. This flexibility isn’t just a bonus; it's a deciding factor in keeping timelines on track when experiments go sideways.

    Supply and Sourcing—Lessons Learned

    Lab teams know to watch the market. Years back, a spike in demand for brominated intermediates rattled schedules across both pharmaceutical and crop protection labs. Reliable sourcing of 2-Nitro-5-Bromobenzonitrile kept critical projects from stalling. A few trusted vendors earned their place by shipping consistently high-purity batches on short notice. Groups placing orders with newcomers sometimes faced mysterious side products or unacceptable delays. In the end, most groups establish direct lines of communication with suppliers willing to provide traceability, purity certificates, and quick turnaround on technical questions. This transparency builds trust, and trust keeps projects moving.

    Environmental Responsibility—More Important Than Ever

    Handling halogenated compounds brings environmental considerations to the table. Waste collection protocols must address bromine content, ensuring disposal meets regulatory standards and doesn't harm local systems. As an example, several university labs rolled out internal recycling and neutralization programs after tracking persistent halogen residues in local waste streams. These protocols often go beyond regulatory minimums; they reflect the lab’s own commitment to stewardship. Even outside academia, commercial operations look to minimize environmental impact, investing in new containment and recycling gear that balances safety with operational efficiency. Anyone who’s visited a poorly managed facility knows this isn’t about optics—good practices prevent costly cleanup and improve community relations.

    Research Innovations Built on 2-Nitro-5-Bromobenzonitrile

    Chemists and material scientists have leveraged this compound in building heterocyclic frameworks, dye molecules, and advanced sensor substrates. The nitro group serves as a crucial transformation handle in catalytic hydrogenations, yielding amino derivatives that go on to assembly in more complex systems. In pharmaceutical research, structure-activity relationship studies have used its selective reactivity as a starting point to tweak lead candidates. Crop protection work, too, has drawn from its potent aromatic scaffold as a template for next-generation fungicides and herbicides. Time and again, I’ve seen post-docs excited to report unexpected reactivity—proof that a well-tuned intermediate really does open new doors in synthesis.

    Improving Access and Handling in the Lab

    Experience shows that access to high-quality intermediates often shapes the tempo and ambition of research programs. Some groups coordinate bulk purchases and distribute smaller portions internally, streamlining access and reducing costs over time. Shared databases now track storage conditions and batch performance, letting members flag concerns as soon as issues arise. Digital protocols guide new users through safe handling and correct waste segregation, making knowledge transfer smoother and preventing avoidable incidents. Labs that prioritize inclusive onboarding end up boosting their collective safety record and technical success.

    Educating the Next Generation

    Younger researchers entering the lab environment need more than a safety lecture. Full engagement with high-value intermediates comes from hands-on exposure and direct mentorship. Senior chemists demonstrate how the nuanced reactivity of 2-Nitro-5-Bromobenzonitrile informs choice of solvents, reaction conditions, and purification methods. These lessons take root when new team members see the practical difference—a yield jump of five percent, a cleaner isolate, or a shortcut around an otherwise challenging synthetic bottleneck. Attention to detail, combined with this kind of mentorship, ensures consistency and drives innovation at the bench.

    Market Perspective and Future Trends

    Across global markets, demand for specialized benzonitriles has grown with expansion in both pharmaceutical and specialty chemical sectors. As areas like targeted drug development and custom agricultural chemistry accelerate, the need for multifunctional intermediates like 2-Nitro-5-Bromobenzonitrile increases. Suppliers monitor quality, but also diversify packaging, supply-chain strategies, and technical support, knowing that reliability draws repeat business. Products that deliver not just on paper but in actual bench results become staples, surviving the churn of new chemical offerings. Ongoing research into greener production methods could further raise the bar, making synthesis of this and similar compounds less resource-intensive and more sustainable—something forward-thinking labs increasingly prioritize in procurement discussions.

    Improving Yield and Reducing Waste

    Chemical operations rarely run perfectly from the start. Teams iterate on reaction parameters, looking for higher yields with less solvent or fewer purification steps. 2-Nitro-5-Bromobenzonitrile shines when protocols build on its ready reactivity at both the nitro and bromo positions, letting chemists design convergent syntheses that avoid byproducts. Streamlining work-ups and reusing solvents, operations both small and large squeeze more product out of each batch and lessen downstream environmental costs. In-house recycling of spent materials and better process mapping, supported by up-to-date equipment and training, push yield further and minimize footprint. Over years of lab experience, it’s become clear that those who treat optimization as an ongoing effort end up gaining consistency and credibility.

    Conclusion—Living Up to Its Reputation

    2-Nitro-5-Bromobenzonitrile may look like another entry on a long list of intermediates, but the feedback from chemists who regularly rely on it tells a different story. Its precise reactivity, batch stability, and adaptability keep it in demand across sectors eager for reliability and flexibility. While regulatory, environmental, and safety concerns add steps to protocol, the benefit shows up in successful syntheses and smooth project timelines. The chemical world keeps moving forward with a hunger for new possibilities, and trusted intermediates like this one help bridge today’s needs with tomorrow’s innovations for anyone who works at the crossroads of research and applied science.