|
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 | 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. |
Applications of 3-Bromo-2-Nitrotoluene in Industrial Manufacturing3-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 SynthesisPharmaceutical 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
Typical usage ratio
Downstream process integration
Final product types
2. Agrochemical Compound ManufacturingProducers 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
Typical usage ratio
Downstream process integration
Final product types
3. Dyes and Pigment Intermediate ProductionThe 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
Typical usage ratio
Downstream process integration
Final product types
4. Specialty Fine Chemicals SynthesisManufacturers 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
Typical usage ratio
Downstream process integration
Final product types
|
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
Flexible payment, competitive price, premium service - Inquire now!
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.