Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
Follow us:

3-Bromo-2-Nitrotoluene

    • Product Name 3-Bromo-2-Nitrotoluene
    • Alias 3-Bromo-o-nitrotoluene
    • Einecs 256-981-6
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    239129

    Chemicalname 3-Bromo-2-Nitrotoluene
    Casnumber 4156-28-7
    Molecularformula C7H6BrNO2
    Molecularweight 216.03
    Appearance Pale yellow to yellow crystalline solid
    Meltingpoint 49-53°C
    Boilingpoint 264-266°C
    Density 1.65 g/cm3
    Solubility Slightly soluble in water; soluble in organic solvents
    Purity Typically >=98%
    Flashpoint 133°C
    Smiles CC1=CC(=C(C=C1)Br)[N+](=O)[O-]

    As an accredited 3-Bromo-2-Nitrotoluene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle, 100 grams; sealed cap with tamper-evident ring, white printed hazard labels: flammable, toxic, and irritant precautions.
    Shipping **Shipping Description for 3-Bromo-2-Nitrotoluene:** 3-Bromo-2-Nitrotoluene is shipped in sealed, chemical-resistant containers to prevent leaks and contamination. Handle and transport it as a hazardous material in accordance with local, national, and international regulations. Store upright in a cool, well-ventilated area, and clearly label all packages with appropriate hazard symbols and safety information.
    Storage 3-Bromo-2-nitrotoluene should be stored in a tightly sealed container, in a cool, dry, well-ventilated area away from direct sunlight and incompatible substances such as strong oxidizers and acids. Keep it away from ignition sources, heat, and moisture. Ensure proper labeling and secondary containment, and store at room temperature. Follow standard chemical storage protocols and local regulations.
    Application of 3-Bromo-2-Nitrotoluene

    Applications of 3-Bromo-2-Nitrotoluene in Industrial Manufacturing

    3-Bromo-2-nitrotoluene serves as a critical intermediate in multiple high-value chemical manufacturing sectors. Downstream industries select this compound for its efficacy in precise syntheses, purity profiles, and reliable integration into regulated production environments. Below, explore key end-use fields where this raw material drives commercial outcomes.

    1. Pharmaceutical Intermediate Synthesis

    Pharmaceutical manufacturers utilize 3-bromo-2-nitrotoluene in the preparation of advanced intermediates essential for the synthesis of APIs, especially within anti-infective, antihypertensive, and CNS drug platforms. The aromatic bromine and nitro groups participate in stepwise nucleophilic substitution, reduction, and condensation reactions during multi-stage manufacturing. Batch records strictly document its incorporation within validated routes such as nitration, halogen exchange, and catalytic hydrogenation, frequently under cGMP systems.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice Guide
    • US FDA 21 CFR Part 210 & 211 (for intermediates used in API manufacture)
    • EU GMP Part II (ICH Q7A)
    • Local pharmacopeial references for intermediates (e.g., USP-NF, Ph. Eur.)

    Typical usage ratio

    • 5–25% w/w in step-specific reaction mixtures, adjusted based on target molecule and process scale; typically calculated for complete conversion to avoid excess unreacted residue

    Downstream process integration

    • Introduced after aromatic ring activation for downstream nucleophilic aromatic substitution
    • Feeds directly into oxidation, reduction, or coupling stages for advanced API intermediate assembly
    • Handled with full traceability via ERP-integrated batch management
    • Classified as a controlled intermediate for GMP validation and cleaning verification

    Final product types

    • Anti-infective agents (e.g., fluoroquinolone classes)
    • Psychotropic and CNS drug intermediates
    • Cardiovascular agents and antihypertensives
    • Specialty active pharmaceutical ingredients built on substituted toluene cores

    2. Agrochemical Compound Manufacturing

    Producers of active ingredients for crop protection integrate this aromatic raw material within the synthesis pathways of modern herbicides and fungicides. The compound’s functionalization supports halogen exchange and nitro group transformation, enabling tailored binding affinity in target pesticides. Documentation of synthesis steps aligns with the specifications required for downstream environmental and toxicological assessments.

    Industry compliance standards

    • FAO/WHO Recommended Specifications for Plant Protection Products
    • EPA (USA) 40 CFR Part 158—Data Requirements for Registration
    • REACH (EU) Regulation (EC) No 1907/2006 for intermediates
    • ISO 9001:2015 (Quality Management for chemical production)

    Typical usage ratio

    • 10–22% w/w per multi-step reaction, with dosage determined by targeted molecule yield and conversion rates; tightly controlled for downstream ecological impact analysis

    Downstream process integration

    • Fed directly into heterocyclic building block synthesis following aromatic halogenation
    • Participates in Grignard and reductive amination sequences in dedicated agrochemical kilns
    • Actively monitored for purity and conversion during pilot-to-commercial process optimization
    • Documented as a non-isolated intermediate in multi-product DCS systems

    Final product types

    • Pre-emergent herbicide actives (e.g., substituted anilines and triazines)
    • Broad-spectrum fungicide intermediates
    • Insecticide precursors for custom synthesis contracts
    • Co-formulant aromatic derivatives for enhanced field efficacy

    3. Dyes and Pigment Intermediate Production

    The dye and pigment sector deploys this compound as a core synthon in the manufacture of specialty azo and nitro-based colorants for plastics, textiles, and coatings. Control of ortho–para-substitution on the toluene ring allows tailored chromophore creation. The conversion process leverages controlled nitration, condensation, and coupling protocols to meet high-purity standards required by modern applications, especially for low-migration and regulated environments.

    Industry compliance standards

    • EN 71-3:2019 (Safety of toys—migration of certain elements)
    • Oeko-Tex Standard 100 (Textile chemicals restrictions)
    • EU REACH Annex XVII—Azo dyes and corresponding aromatic amines
    • ISO 9001 production quality systems

    Typical usage ratio

    • 8–15% w/w of total dye or pigment batch; optimized per shade, toxicity limit, and substrate compatibility

    Downstream process integration

    • Used as a starting material in initial condensation and azo coupling reactions for azo dye synthesis
    • Blended with sulfonation or reduction substrates in pigment formation steps
    • Purity and particle size monitored inline for consistency in large-scale dispersions
    • Incorporated into automated color-matching and pigment blending lines

    Final product types

    • Azo dyes for cotton, wool, and synthetic fibers
    • High-performance pigments for plastics and masterbatches
    • Specialized printing inks for packaging and security
    • Low-migration colorants for food-contact materials

    4. Specialty Fine Chemicals Synthesis

    Manufacturers specializing in fine and specialty chemicals utilize this material as a precursor in custom syntheses, especially for electronics, photoinitiators, and advanced polymer additives. Its selective functional groups make it suitable for targeted Friedel–Crafts reactions and nucleophilic aromatic substitutions, forming complex structures required by end-users in demanding sectors such as optoelectronics and high-performance coatings. The integration process leverages microreactor technology and precise temperature control for maximum reproducibility.

    Industry compliance standards

    • ISO 14001:2015 (Environmental management systems for chemical industry)
    • Responsible Care® Management System
    • Chemical Control Law (Japan) for high-performance chemicals
    • REACH (EU) notification for production and import volumes above 1 TPA

    Typical usage ratio

    • 3–12% w/w, adjusted based on desired end-structure and customer specification for purity or reactivity profile

    Downstream process integration

    • Precisely dispensed at the initial stage of aromatic functionalization via microreactors
    • Feeds into cascade synthesis for molecular scaffolds of photoinitiators and specialty monomers
    • Process monitored by inline GC and HPLC for quality tracking
    • Byproduct streams recycled or further processed for environmental compliance

    Final product types

    • Photoinitiator intermediates for UV-cured coatings and inks
    • Electronic-grade chemicals for semiconductors
    • Polymer stabilization additives in engineering plastics
    • Precursors for non-linear optical materials and specialty resins
    Free Quote

    Competitive 3-Bromo-2-Nitrotoluene prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.

    We will respond to you as soon as possible.

    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

    Get Free Quote of Sinochem Nanjing Corporation

    Flexible payment, competitive price, premium service - Inquire now!

    Certification & Compliance
    More Introduction

    Experience and Reliability in Producing 3-Bromo-2-Nitrotoluene

    Few things sharpen a synthetic chemist’s eye quite as much as the search for a reliable, pure, and consistent supply of critical intermediates. 3-Bromo-2-Nitrotoluene has grown into one of those simple molecules that quietly underpin the work of larger, more visible industries: specialty dye synthesis, advanced pharmaceutical building blocks, and even emerging materials research all lean on the right grade of this compound for their progress. Speaking from years of bench chemistry and scaled production, I can say a lot depends on how we produce, test, store, and handle this substance, well before it ever leaves our doors.

    Understanding 3-Bromo-2-Nitrotoluene

    Over the production runs we've handled, 3-Bromo-2-Nitrotoluene’s real identity comes forward through practical experience. Chemically, it brings together a bromine atom at the 3-position and a nitro group at the 2-position on a methylated benzene ring. Anyone dealing with aromatic substitution quickly recognizes that these groups don’t just sit where they like — directing effects and byproducts come swiftly if process conditions stray even a bit. Producing a batch with high positional purity isn’t a theory exercise; it’s the result of refined process control, regular in-process analytics, and a team that cares about every step.

    Over hundreds of batches, we’ve tuned our technique to reduce isomer contamination. Hydrobromic acid strength, reaction time, and temperature have to match the raw material’s quirks. This careful orchestration keeps the main product clean and side-products away, so we rarely see customers frustrated by downstream purification headaches. Strict in-house GC and HPLC checking holds these claims steady.

    Specifications and Process Insight

    Consistent delivery on product quality doesn’t happen by accident. For our outlet, 3-Bromo-2-Nitrotoluene leaves the plant with a clarity and golden-yellow tint distinct to a high-purity grade. Melting point is one of the quickest checks: deviations signal impurity to us. The typical material clocks in around 60-63°C, but I always emphasize that even a small deviation here points to the process needing a closer look. Water content, residual solvent profile, inorganic bromide levels — these all matter.

    Our lot records and sample retains let us trace back any anomaly to its source ingredients or conditions. So, if a client’s NMR or IR picks up something unusual, we work backward and forward — checking among syntheses, solvents, filtration protocols, even shipment climate. Reactivity is what you expect from a true halo-nitrotoluene: it stands ready for nucleophilic substitution or further reduction, but stable enough for safe shipping and storage. There's no guesswork with the physical properties, either; we've documented density and solubility over many solvent systems, which serves as a practical guide for formulation labs and scale-up projects.

    Why Small Differences Change Performance Downstream

    Years of working directly with R&D chemists and process engineers teaches a simple truth: slight variations in this molecule’s isomer ratio, trace metals, or even halogen content have a way of multiplying as you move down the synthesis line. Take a common dye intermediate we service regularly. If stray ortho or para-brominated isomers sneak through, side products crop up in the next step — difficult to remove and almost always sabotaging yield. The same applies to work with pharmaceutical precursors, where regulatory filings demand full traceability of impurities and a near-obsessive attention to batch homogeneity.

    Our production floor runs real-time analytics for each stage, giving actionable data on pH, impurity build-up, and raw input variation. This means that, as a manufacturer, we’re set up to deliver a reproducible intermediate, not just a “compliant” one. A trader or reseller rarely sees what a partial change in brominating agent or nitro replacement can do as you push through several steps; we see these results every day.

    Practical Usage and Handling Wisdom

    3-Bromo-2-Nitrotoluene finds its main buyers in organizations moving past benchtop scale-up. In dye companies, it slots in before coupling or azo formation (especially reds and violets requiring high chroma). The molecule’s selective reactivity opens up elaborate heterocycle syntheses, especially where a protected nitro group forms part of a staged build for pharmaceutical targets.

    Handling experience has taught us a few real points: Its dust and vapor tend to linger if cleanup is ignored, so our operators suit up for transfer to protect both themselves and the bulk product. Storage requires dark, dry conditions, as the nitro group can slowly degrade or react, especially with trace contaminants or excess humidity. Packaging in opaque, sealed steel drums with inert liners provides assurance that material quality sticks from filling to customer shelf.

    We use day-to-day production experiences to inform clients about batch-specific idiosyncrasies. For example, a subtle color shift or faint odor change might tell a downstream engineer exactly whether to adjust solvent ratios, catalyst selection, or temperature holds. Feedback loops with discerning users help us iteratively update SOPs for even tighter control next time.

    Direct Differences from Commonly Available Alternatives

    A crowded market exists for similar aryl halides and substituted nitrotoluenes, but we’ve seen first-hand how real differences show up in practice, not just on a specification sheet. Many brokers list 2-Bromo-4-Nitrotoluene or 4-Bromo-2-Nitrotoluene alongside ours. These close relatives don’t perform the same way — changes in substitution pattern rearrange reactivity, and attempting one in place of the other often leads to unexpected byproducts or expensive workups.

    Industrial users sometimes try to substitute with less pure materials from trading houses in hopes of cost savings. Reality catches up when NMR shows residual byproduct from imperfect nitration or bromination. Trace inorganic impurities originating in cheap precursor supply chains end up catalyzing unwanted side reactions down the line, wasting time and raw materials. We stick to tried and tested starting benzene derivatives, never secondary or recycled feedstocks.

    Over time, customers return because sourcing directly from a producer who controls every step means less variability and fewer headaches as they scale. We calibrate our process to avoid the subtle pitfalls seen in merchant intermediates: inconsistent melting range, batch-to-batch color variation, or solvent residue levels that throw off fine-tuned downstream steps. Resellers can’t adjust a process or retrace to a faulty step — only a manufacturer on the ground floor holds all that data and control.

    Supporting Evolving Uses and Customization

    We see the most interesting requests come in not from bulk buyers, but from research teams charting new territory. The strength of 3-Bromo-2-Nitrotoluene lies in its ability to act as a versatile launchpad for molecular diversity. Grad students developing new photoinitiators, or scientists probing anti-infective scaffolds, often need batches tailored to gram or multi-kilo scale. Unlike large-scale traders tied to fixed batch sizes, our workflow supports flexible adjustments in synthesis size, purification methods, and packaging formats. Whether someone needs a hundred grams of a particularly clean batch for analytical work or a half-metric ton for an advanced intermediate campaign, we can meet that need — always with transparency about the origin and processing details.

    Requests for additional analytical data are routine. We often provide support documentation ranging from full impurity profiling by GC-MS and HRMS to suitability reports for sensitive applications. Users in regulated industries benefit from methods developed under ICH Q7 and ISO guidelines. Having direct internal labs means we deliver not only the compound, but supporting spectral and impurities data tested under real-world storage and usage conditions.

    Troubleshooting, Process Improvements, and Customer Feedback

    Every manufacturer’s story includes unexpected challenges and room for improvement. During humid seasons, trace moisture infiltration became a persistent issue. Our team adapted by overhauling the drying stage, stepping up monitoring, and making adjustments that held water content well below critical levels. That kind of controlled response isn’t possible from a third-party intermediary.

    Close feedback loops with users tell us more than any generic product dashboard could. A pharmaceutical pilot plant in India once flagged an unusually persistent spot on TLC, likely from a minor brominated byproduct. Our work tracing the anomaly led to tighter temperature regulation and revisiting temperature ramp profiles in our reactor system. Our largest dye customer struggled with yield drops traced to off-spec color intensity: retesting multiple lots in our own applications lab uncovered an overlooked filtration pad residue, solved by changing pad suppliers and tightening the final filter protocol.

    Each problem turns into a lesson and a process upgrade. We keep cycle logs of every run, note every off-normal event, and test retain samples from every batch at multiples of the compound’s stated shelf-life. In that constant review lies the reassurance to our customers: the next batch brings no surprises.

    Regulatory and Environmental Considerations

    Regulations on nitroaromatics and halogenated intermediates get tighter every year, especially in Europe and North America. We stick close to current REACH guidance, and every new development — from emissions to effluent treatment — finds its way into our plant process updates. Effluent from bromination and nitration meets local waste codes; waste stream management gets documented for every campaign, with regular outside audits confirming compliance.

    Pressure also comes from clients facing sustainability mandates. The nitro and bromo groups both present classic challenges; wastewater and spent solvent treatment systems at our site go beyond basic chemical neutralization. Where possible, we recover solvents via distillation for reuse in non-critical stages. Ongoing work with green chemistry consultants pushes us to cut down on halogen emissions and to explore catalyst systems that lower temperature and reduce excess reagent use.

    We field increasing requests for “greener” process options or eco-profiled intermediates. Sharing our workflow openly gives clients confidence that their supply chain matches their own corporate sustainability pledges. We also offer post-manufacture recycling and take-back programs for drums and containers, which eliminates much of the cradle-to-grave disposal burden for our users.

    Building Value Beyond Commodity Supply

    As a manufacturer, every lot of 3-Bromo-2-Nitrotoluene sent out the door carries more than the compound — it weighs on our reputation. Experience proves that simple commodity thinking fails when the molecule underpins high-value synthesis. Only direct involvement in every layer, from raw material sourcing to analytical signoff, lets us guarantee the reliability and transparency that high-tech industries demand.

    Our operation has grown not by being cheapest or fastest, but by listening — to mistakes, to questions, to customer commentary both positive and negative. Sharing assay data, taking process criticism seriously, and supporting applications troubleshooting make up a large part of the real work of chemical manufacturing.

    Users who work closely with honest suppliers — not faceless intermediaries or broad-market resellers — secure the long tail of their R&D and production. This supports safe, efficient, and innovative work in everything from colorant development to API research. True progress in the chemical space grows directly from tight, trusting relationships between the plant lab and the operating lab.

    Looking Forward: Continuous Improvement, Real Value

    Our field won’t stand still. With each wave of new regulations and application demands, we challenge ourselves to push for tighter control, clearer documentation, and broader support. We build pilot campaigns alongside established commercial scale runs. We test formulations in side-by-side competitive trials and pass learnings on to our customers. This works only because we control our process and learn directly from the results.

    For future-facing clients — from agrochemical research groups to custom reagents houses — our steady focus on process transparency, real-world support, and continuous improvement in producing 3-Bromo-2-Nitrotoluene gives a partner in problem-solving, rather than just a stop-gap supply fix. The unique combination of selectivity, reactivity, and purity that our production brings makes a difference wherever exact product performance defines success.

    With every new customer need, process change, or regulatory twist, we keep building — not just a molecule, but a legacy of reliability and collaboration between manufacturer and user. Anyone looking to do more with this critical aromatic intermediate can count on an open, technically fluent, and flexible partner on our side. Experience and discovery keep redefining what’s possible, one well-run batch at a time.