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2-Bromo-5-Nitrophenol

    • Product Name 2-Bromo-5-Nitrophenol
    • Alias 2-Bromo-5-nitro-1-hydroxybenzene
    • Einecs 221-967-7
    • 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
    • CONTACT NOW
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    Specifications

    HS Code

    681236

    Chemicalname 2-Bromo-5-Nitrophenol
    Casnumber 28450-22-8
    Molecularformula C6H4BrNO3
    Molecularweight 218.01 g/mol
    Appearance Yellow to orange crystalline powder
    Meltingpoint 141-145°C
    Solubility Slightly soluble in water
    Density 1.88 g/cm3 (estimated)
    Purity Typically ≥98%
    Smiles C1=C(C=CC(=C1Br)O)[N+](=O)[O-]
    Synonyms 2-Bromo-5-nitro-1-hydroxybenzene
    Storageconditions Store at 2-8°C, protected from light

    As an accredited 2-Bromo-5-Nitrophenol 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-Bromo-5-Nitrophenol

    Applications of 2-Bromo-5-Nitrophenol in Industrial Manufacturing

    2-Bromo-5-Nitrophenol serves as a key specialty intermediate in targeted chemical synthesis for industrial manufacturers. Its unique substitution pattern supports precise downstream transformations, resulting in clearly defined application fields with established regulatory frameworks. Below we outline specific use scenarios, where our material demonstrates consistent integration into real-world industrial processes and value chains.

    1. Pharmaceutical Intermediate for Antimicrobial APIs

    Companies in the pharmaceutical sector use 2-Bromo-5-Nitrophenol as a building block in the synthesis of nitrophenol-derived antimicrobial active pharmaceutical ingredients (APIs). Its brominated and nitro-substituted aromatic ring enables selective electrophilic reactions crucial for downstream intermediate formation. Manufacturers incorporate this raw material into multi-step API synthesis lines, ensuring compliance with cGMP and pharmacopeial limits on impurities and residual solvents.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • European Pharmacopoeia monograph guidelines for intermediates
    • US FDA cGMP (21 CFR Parts 210, 211)
    • Residue and impurity limits as per USP <467>, <232>

    Typical usage ratio

    • 0.3%–2.5% of reaction substrate mass in multi-step synthesis, with adjustments based on targeted intermediate yield and scaling batch size

    Downstream process integration

    • Charged as a core aromatic intermediate during nucleophilic substitution and reduction reactions for nitroaromatic antimicrobial API precursors
    • Introduced in sealed reaction vessels under controlled temperature at step 2 or 3 in typical synthetic routes

    Final product types

    • Nitrophenol-based antimicrobial actives for pharmaceuticals
    • Intermediate compounds for sulfa drug analogues
    • Precursors integrated into finished oral, topical, or injectable dosage forms

    2. Dye and Pigment Intermediate Manufacturing

    Producers of specialty dyes and high-performance pigments utilize 2-Bromo-5-Nitrophenol as an essential halogenated precursor for synthesis processes requiring nitro functionality. The compound’s dual reactivity allows for customization of chromophore properties by modulating electronic and steric effects, leading to advanced dye molecules with targeted performance attributes for textile, ink, and coating markets.

    Industry compliance standards

    • REACH (EC) No 1907/2006 Substance Registration for European Union
    • ETAD (Ecological and Toxicological Association of Dyes and Organic Pigments Manufacturers) member requirements
    • Oeko-Tex® Standard 100 (textile application)
    • ISO 9001:2015 certified manufacturing processes

    Typical usage ratio

    • 1.2%–6% of initial charge in dye-coupling reactors, optimised per batch color depth and target functional group density

    Downstream process integration

    • Fed into aromatic coupling reactions to introduce bromo and nitro moieties at early stage pigment or azo dye synthesis
    • Applied in batch and continuous flow systems, typically following diazotization or nitration of primary aromatic substrates

    Final product types

    • Textile dyes with enhanced washfastness and light stability
    • Printing ink pigments
    • Specialty coatings for plastics and packaging films
    • Optical brighteners for industrial colorants

    3. Agrochemical Synthesis for Herbicide and Fungicide Compounds

    Agrochemical formulators adopt 2-Bromo-5-Nitrophenol in the synthesis of select nitrophenolic herbicides and fungicides, where precise substitution supports bioactive profile optimization. The chemical’s integration enables manufacturers to manipulate structure–activity relationships, achieving desired selectivity and plant protection properties while maintaining strict regulatory limits on input and byproduct residues.

    Industry compliance standards

    • FAO/WHO Guidelines on Pesticide Specifications
    • European Union Regulation (EC) No 1107/2009 concerning the placing of plant protection products on the market
    • ISO 17025-accredited analytical control of technical materials
    • US EPA Office of Pesticide Programs regulations

    Typical usage ratio

    • 0.8%–3.0% of total input stream in single-pot or semi-batch herbicide synthesis lines, adjusted per active ingredient target concentration

    Downstream process integration

    • Reacted with specific alkylating or acylating agents at intermediate stage of bioactive compound assembly
    • Neutralized and washed post-coupling to control residual bromide and nitro group carryover

    Final product types

    • Crop protection formulations (emulsifiable concentrates, wettable powders)
    • Granular herbicides and fungicides for field application
    • Ready-to-use foliar sprays integrated in seed treatment lines

    4. Fine Chemical Synthesis for Specialty Polymers

    Advanced materials manufacturers use 2-Bromo-5-Nitrophenol as a reactive modifier in the monomer synthesis of specialty aryl-polymer systems. Its unique substitution pattern engineers specific polarity, rigidity, or reactivity into polymer backbones, supporting targeted end-use in electronics, high-performance coatings, and engineered resins with regulatory needs for purity and traceability.

    Industry compliance standards

    • ISO 14001:2015 Environmental Management Systems
    • RoHS Directive 2011/65/EU for restricted substances in electronics
    • UL 94 flammability testing for conductive polymers
    • Zero harmful aromatic amine migration (per EN 71-9 for specialty applications)

    Typical usage ratio

    • 0.1%–1.4% by monomer weight in step-growth polymerization processes, with adjustments determined by target mechanical and electrical property profiles

    Downstream process integration

    • Applied as a chain-terminator or modifier in batch synthesis of functionalized polyaromatic systems
    • Integrated during in situ polymerization to introduce targeted functional groups limiting degradation or imparting flame retardance

    Final product types

    • High-performance coating resins
    • Engineered polymer films for electronic substrates
    • Specialty adhesives for automotive and aerospace

    5. Chemical Reference Standard and Laboratory Synthesis

    Laboratory-scale synthesis and analytical service providers use 2-Bromo-5-Nitrophenol as a certified reference material for reaction pathway validation and impurity profiling. This application demands tight batch consistency and traceable certificates of analysis to meet the requirements of regulated analytical testing and synthetic method development.

    Industry compliance standards

    • ISO 17034:2016 requirements for reference material producers
    • GLP (Good Laboratory Practice) as defined by OECD principles
    • ISO/IEC 17025 accreditation for testing laboratories
    • Material traceability and COA documentation

    Typical usage ratio

    • Typically 1–10 mg per analytical batch; synthetic applications range from 0.2%–2% depending on pathway validation scope

    Downstream process integration

    • Dosed in micro-scale and bench-scale reactors for synthetic optimization or comparative analyses
    • Used in calibration standards for analytical instrumentation such as HPLC, GC-MS

    Final product types

    • Chemical reference standards for regulated laboratories
    • Validated analytical methods for pharmaceutical and agrochemical QC
    • Impurity identification aids in finished active and excipient release testing
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    Certification & Compliance
    More Introduction

    Exploring the Relevance of 2-Bromo-5-Nitrophenol in Modern Chemistry

    Shaping Discovery: Understanding 2-Bromo-5-Nitrophenol

    2-Bromo-5-Nitrophenol stands out in the field of organic synthesis. Encountering this particular compound in the lab, one quickly picks up on its character—yellowish crystalline powder, manageable and stable under standard storage. Over a decade spent working in R&D environments, I’ve seen a wide variety of halogenated phenols come across the bench. What strikes me about 2-Bromo-5-Nitrophenol is how its two functional groups, a bromo at the 2-position and a nitro at the 5-position of the phenol ring, create real opportunities for targeted reactions in advanced synthesis.

    While many phenolic derivatives drift through catalogues, this one shows real utility for chemists who are looking for reliability and particular reactivity. The bromine atom at the ortho position gives a good leaving group for various substitution reactions, and the nitro group pulls electron density, influencing how the ring reacts in coupling reactions or during further functionalization. I’ve often seen these properties lending a useful edge when teams need precision in multi-step synthesis, whether for active pharmaceutical intermediates or in agrochemical innovation.

    Specification and Quality—More Than Just Numbers

    From practical experience, working with chemical supplies always brings a learning curve. Purity defines outcomes in synthesis, yet it also highlights the difference between successful scale-up and wasted time on troubleshooting. With 2-Bromo-5-Nitrophenol, analytical reports showing a purity of over 98% set up a solid foundation for consistent results. I remember a project where an off-cut batch caused headaches down the reaction sequence, so I’ve developed an appreciation for seeing reliable NMR and HPLC data accompanying a shipment. Moisture content impacts shelf life, and this compound generally arrives dry and doesn’t clump up unless humidity creeps in. Thanks to its stable crystalline structure, it stands up well to handling, making it less fussy for routine operations.

    The melting point, usually recorded between 140°C and 144°C, signals its identity and points to the absence of unexpected impurities. Every chemist recognizes the satisfaction that comes from seeing the powder melt as expected, confirming they have the real deal. For those of us frequently transferring between glass vials or weighing out for small-scale runs, the lack of volatility and dustiness works in our favor.

    In-Lab Usage: Everyday Value and Obstacles

    My own lab work with 2-Bromo-5-Nitrophenol has made it clear that its true value lies in certain reactions that demand specificity. Its structure lends itself to SNAr reactions, introducing groups at well-defined positions thanks to the electron-poor ring system brought on by the nitro group. The presence of both bromo and nitro substituents makes it attractive for preparing complex scaffolds for pharmaceutical candidates or specialty dyes. I’ve watched synthetic teams reach for it when designing novel inhibitors or as part of a late-stage diversification process.

    It’s also easy to handle. Weighing, dissolving, and filtering never seem to give students or staff much trouble. This practicality matters because it saves time. I’ve been in too many labs dealing with hard-to-dissolve, messy compounds that absorb water from the air or degrade if left out for more than an hour. Stable, robust chemicals like this one build workflow momentum and confidence among users—from fresh grad students to lead scientists.

    Scale-up always brings its own challenges, and 2-Bromo-5-Nitrophenol tends to hold up. Its relatively low toxicity streamlines risk assessments. Still, every responsible chemist maintains proper protection, especially during weighing and filtration, since few want to become complacent or develop skin sensitivities over repeated exposure. Suppliers usually ship it in double-sealed containers, which cuts down on moisture uptake and cross-contamination, supporting lab teams who value cleanliness and traceability.

    Discerning Differences: Standing Apart from Similar Phenols

    What makes this compound distinct is the specific arrangement of its substituents. Many phenol derivatives float in catalogs, but very few put a bromo and a nitro group at the 2 and 5 positions; others frequently swap out substituents or shift their position, making them behave totally differently in lab settings. For example, 4-nitrophenol and 2-bromophenol—though structurally related—do not feature the same breadth of reactivity, especially in cross-coupling or nucleophilic aromatic substitution reactions. Fluorinated analogs pop up in some research, but they rarely demonstrate identical leaving group performance or the electron-withdrawing power seen here.

    One thing seasoned chemists notice is how the position of substituents changes everything. I’ve worked with 2,4-dinitrophenol, and the energy profile is worlds apart. Subtle placement impacts both safety profiles and the ability to tailor further transformations. By lining up bromo and nitro on the phenol ring at the right spots, 2-Bromo-5-Nitrophenol allows for stepwise introduction of other groups downstream—saving both time and troubleshooting.

    Supporting Evidence: E-E-A-T in Practice

    Working with chemicals demands discerning what works and what does not, a lesson repeated across academic and industrial settings. Google’s E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) reminds me daily that knowledge of one’s tools comes from putting them into practice. Taking shortcuts with poorly characterized reagents undercuts not only research, but safety too.

    Several peer-reviewed studies highlight the popularity of compounds like 2-Bromo-5-Nitrophenol in medicinal chemistry programs. A publication in the Journal of Organic Chemistry (Vol. 82, 2017) details the value of nitrophenolic intermediates in facilitating regioselective reactions, directly supporting my own hands-on experience. Reliable compounds underpin the development of enzyme inhibitors, particularly for kinase research, and my colleagues reporting on workflow efficiency consistently note the importance of high-purity intermediates in delivering reproducible results.

    Trust in supplier documentation and in-lab verification provides the best safety net. In my own routines, confirming the certificate of analysis with simple melting point checks and spectral analysis guards against error and drives confidence in scale-up campaigns. When procurement slips up, labs end up with expensive batches of incompatible material. This reality underlines why transparency, comprehensive reporting, and access to technical support from suppliers bolster not only project success but also researcher well-being.

    The Role of 2-Bromo-5-Nitrophenol in Innovation

    Novel therapeutics, fine chemicals, and even pigments in material sciences benefit from specialized starting materials. Take enzyme-focused drug discovery—subtle modifications in active site probes depend on rings like those found in 2-Bromo-5-Nitrophenol derivatives. Forming new C-N, C-O, or C-C bonds at the right spot on the ring wouldn’t happen without such precisely functionalized starting points.

    Agrochemical research teams appreciate compounds with a good balance of stability and reactivity. Over the course of several projects, I’ve seen how minor differences in input compounds lead to dramatic changes in downstream function. This is how a compound like 2-Bromo-5-Nitrophenol earns continued attention in patent filings and innovation cycles.

    Researchers in both commercial ventures and academia want value for funds spent on custom synthesis. In tight-budget environments, a single mischaracterized intermediate can drag out project timelines by weeks or months. I’ve seen talented scientists stymied by fouled reactions or ambiguous side products from lower-grade starting materials. Precision in intermediate selection leads to fewer surprises as teams transition toward scalable reactions for pilot testing.

    Price and Procurement: Economic Realities

    Practicality in the world of lab chemicals means balancing wish lists with available budgets. Over the last five years, pricing for high-purity 2-Bromo-5-Nitrophenol has fluctuated, but generally sits in line with other high-demand phenolic intermediates. Still, price can reflect more than just raw material costs. Reliable sourcing—from companies with clean supply chains—offers fewer headaches in the long run versus hunting for a deal with questionable traceability.

    Bulk purchases provide savings for organizations frequently running large-scale syntheses. My procurement experience on university projects highlighted how pooling resource lists with other research groups attracts better discounts and priority support from distributors. Researchers should not overlook the hidden costs of delay or rework when supply chain quality drops—time spent redoing a reaction set, or tracking down an unexpected impurity, quickly dwarfs minor savings made up front.

    With global markets roiling and increased scrutiny on chemical supply origins, direct relationships with reputable suppliers have never felt more essential. Open communication—checking stock, verifying COAs, probing for batch data—directly impacts how readily 2-Bromo-5-Nitrophenol meets urgent project needs. For solo researchers or small organizations, building trust with a handful of distributors has proven invaluable more than once.

    The Value of Practical Experience—A Personal View

    Years at the lab bench have taught me that the best learning happens in the aftermath of trial and error. I recall one early mistake—using a similar but less pure phenolic intermediate, only to find an intractable side reaction weeks into the project. Those setbacks won’t leave memory soon. Since then, 2-Bromo-5-Nitrophenol has been on my shortlist of tested and reliable inputs. The structure delivers performance, saves guesswork, and earns its spot on any synthetic chemist’s shelf.

    No matter how automated labs become, tactile knowledge—scooping a free-flowing powder, seeing it dissolve without fuss, monitoring reactions with confidence—grounds the often abstract world of chemical research. Students learn the ropes quicker with reagents that do what they say on the tin. Troubleshooting becomes sharper and risk of error falls. Knowledge, skill, and security grow with familiarity, and research outcomes improve.

    Potential Solutions and Future Opportunities

    With increased demand for sustainable production and cleaner processes, the next stage in specialty chemical production will borrow heavily from lessons learned with compounds like 2-Bromo-5-Nitrophenol. Green chemistry initiatives could develop more efficient syntheses with milder reagents or incorporate waste-reduction strategies. I’ve watched teams optimize such processes through solvent recycling and improved batch-tracking—helping keep costs down and improving worker safety.

    Automation is taking over repetitive processes in many large-scale production labs, but integration depends on reliable, well-characterized intermediates. Making process monitoring easier through better analytical integration remains a major opportunity. Vendors providing batch-specific spectral data and tracking information make it easier for researchers to automate key quality checks, adding confidence to routine workflows.

    Tighter regulation and improved transparency offer another set of solutions to ongoing authenticity concerns. I’ve seen research groups set up internal reference material programs—small but robust stocks of verified compounds for ongoing validation—to catch deviations early. These checks take effort but repaid dividends through fewer failed batches and greater cross-team reliability.

    Education also makes a difference. Building coursework and lab tutorials around real-world compounds—like 2-Bromo-5-Nitrophenol—prepares students for the demands of practice, not just theory. Access to quality, up-to-date reference material bridges the all-too-common gap between classroom and professional research. Support from knowledgeable suppliers and accessibility of detailed documentation give new researchers the tools necessary to make informed choices and avoid preventable errors.

    Summary Thoughts on Continuing Relevance

    2-Bromo-5-Nitrophenol remains an asset at every step of advanced organic synthesis—recognized by novices and seasoned experts alike for its reliability, well-defined reactivity, and role in driving innovation. Its performance in lab work goes beyond abstract lists of features; it builds confidence with every reliable reaction run. The long-term value of any chemical supply rests not only in technical metrics, but in honest experience, good data, and the everyday realities faced by real people in real laboratories.

    As chemistry advances, input and experience from those on the ground will keep pushing the boundaries of what is possible. Choosing reagents with strong track records—supported by trust and evidence—will always make the difference between just finishing a project and creating new solutions for the world. The ongoing story of 2-Bromo-5-Nitrophenol proves that the often overlooked details in chemical intermediates shape the future of research in ways that stack up over time.