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4-Bromomethyl-3-Nitrobenzoic Acid

    • Product Name 4-Bromomethyl-3-Nitrobenzoic Acid
    • Alias 4-Bromo-3-nitrobenzylcarboxylic acid
    • Einecs EINECS 419-090-2
    • 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

    816392

    Product Name 4-Bromomethyl-3-Nitrobenzoic Acid
    Chemical Formula C8H6BrNO4
    Molecular Weight 260.04 g/mol
    Cas Number 7491-02-3
    Appearance Light yellow powder
    Melting Point 188-192 °C
    Solubility Slightly soluble in water
    Purity Typically ≥98%
    Density 1.81 g/cm³
    Structure A benzene ring with carboxylic acid, bromomethyl, and nitro substituents
    Iupac Name 4-(Bromomethyl)-3-nitrobenzoic acid

    As an accredited 4-Bromomethyl-3-Nitrobenzoic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A 25-gram amber glass bottle with a secure screw cap, labeled "4-Bromomethyl-3-Nitrobenzoic Acid, CAS 113305-89-8, 98% pure."
    Shipping 4-Bromomethyl-3-Nitrobenzoic Acid is securely packaged in sealed containers suitable for chemical transport. The shipment complies with all relevant regulations for hazardous materials, including proper labeling, documentation, and protective packaging to prevent leaks or contamination. Standard or express shipping options are available, with tracking and delivery confirmation provided.
    Storage **4-Bromomethyl-3-nitrobenzoic acid** should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from sources of ignition, strong acids, and bases. It should be protected from light and moisture. Ensure the storage area is secure, labeled, and accessible only to trained personnel wearing suitable protective equipment. Store separately from incompatible chemicals.
    Application of 4-Bromomethyl-3-Nitrobenzoic Acid

    Applications of 4-Bromomethyl-3-Nitrobenzoic Acid in Industrial Manufacturing

    As a specialized manufacturer, we supply 4-Bromomethyl-3-Nitrobenzoic Acid (BMNBA) for advanced intermediate synthesis across several chemical sectors. Below, we detail authentic, field-proven application scenarios with full transparency on operational requirements, compliance, formulation, and typical downstream outputs.

    1. Pharmaceutical Intermediate for Angiotensin II Receptor Antagonist APIs

    Pharmaceutical companies utilize BMNBA in the targeted functionalization and elaboration steps for the synthesis of key antihypertensive drug intermediates, including the telmisartan and valsartan series. Introduced at the benzylation stage, BMNBA enables site-specific substitution essential for subsequent cyclization and nitro-reduction. Its chemical structure supports selective building block expansion without undesired side reactions, facilitating high-yield product lines aligned with regulatory health codes.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • US FDA 21 CFR Part 211: CGMP for Finished Pharmaceuticals
    • European Pharmacopoeia (Ph. Eur.) monographs for intermediates
    • China GMP (2010 Edition, revised) for chemical APIs

    Typical usage ratio

    • 0.9–1.15 molar equivalents per batch, depending on route specificity; adjusted to stoichiometric requirements per batch process design

    Downstream process integration

    • Inline addition post-nitrobenzoic acid activation, utilized during controlled alkylation reactions in API intermediate train

    Final product types

    • Angiotensin II receptor antagonist bulk APIs (e.g., telmisartan, valsartan intermediates)
    • Fine chemical intermediates for block structure synthesis

    2. Advanced Dye and Pigment Synthesis

    Manufacturers in the specialty dyes sector employ BMNBA in the design of nitro-based azo pigments and high-performance dyes for electronic and plastic coloration. The compound provides a functional handle for para-substituted azo coupling, enhancing color strength and thermal stability in final pigment systems. Usage occurs during the stepwise assembly of dye intermediates, where precise substitution at the bromomethyl site determines final chromophore properties.

    Industry compliance standards

    • EN 71-3:2013 + A3 (Toy Safety—Migration of certain elements)
    • OEKO-TEX® Standard 100 (For textiles and pigments)
    • EU REACH Regulation (EC) No. 1907/2006 for pigment chemicals
    • ISO 9001:2015 for pigment manufacturing quality systems

    Typical usage ratio

    • 5–12% w/w in pigment precursor synthesis; adjusted per reaction scale and product specification

    Downstream process integration

    • Stepwise functionalization and substitution on aromatic systems, typically entering the synthetic workflow after initial nitrobenzoic acid activation

    Final product types

    • High-stability azo pigments for plastics
    • Heat-resistant dyes for electronic component casing and coatings

    3. Agrochemical Building Blocks for Herbicide and Fungicide Synthesis

    Agrochemical formulators select BMNBA for integrating nitroaromatic moieties into pre-emergent herbicide and fungicide actives, specifically in the triazole and benzamide series. The material's reactivity ensures effective formation of targeted aryl-alkyl substituents, supporting formulation efficacy and environmental safety. Known conversion routes incorporate BMNBA for the stepwise creation of agrichemical actives with optimized field stability and application profiles.

    Industry compliance standards

    • FAO/WHO Specifications for Pesticides
    • EU Regulation (EC) No. 1107/2009 (Plant Protection Products)
    • US EPA 40 CFR Part 180 (Tolerance requirements for residues of pesticides)
    • ISO 9001:2015 for agrochemical manufacturing

    Typical usage ratio

    • 1.0–1.3 molar equivalents per active ingredient batch; tailored to reaction yield and impurity control requirements

    Downstream process integration

    • Introduced following initial aromatic nitration during active intermediate coupling or amidation stages

    Final product types

    • Systemic fungicide intermediates
    • Herbicide precursor concentrates for further formulation

    4. Specialty Polymer Modifiers

    Polymer research and development teams use BMNBA to create custom aromatic monomers for high-performance engineering plastics and elastomers, particularly in applications demanding enhanced resistance to thermal decomposition and chemical attack. Incorporated during the resin modifier synthesis step, this compound enables aromatic site-selective functionalization that impacts chain rigidity and polymer cross-linking efficiency.

    Industry compliance standards

    • UL 94 Plastic Flammability Standard
    • RoHS Directive 2011/65/EU (Hazardous substances restriction)
    • ISO 14001:2015—Environmental management in chemical processing
    • ANSI/ASQ Z1.4 Sampling procedures for inspection

    Typical usage ratio

    • 0.5–3.5% by weight of total monomer feed; modulation based on targeted polymer property

    Downstream process integration

    • Added during solution or melt-phase copolymerization, following monomer blend preparation and prior to initiator introduction

    Final product types

    • Thermally stable engineering resins
    • Cross-linked elastomeric copolymers for specialty seals and insulation
    • Custom aromatic-modified polyethylene blends
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    Certification & Compliance
    More Introduction

    4-Bromomethyl-3-Nitrobenzoic Acid: Precision and Reliability in Benzene Ring Functionalization

    Understanding the Nature and Role of 4-Bromomethyl-3-Nitrobenzoic Acid

    As a chemical manufacturer, every step from starting material selection to packaging influences the consistency our customers count on. Among specialty benzoic acid derivatives, 4-Bromomethyl-3-Nitrobenzoic Acid stands out for both its structure and reactivity. The model number we produce, 98%+ purity, powder form, reflects significant investment in crystallization, purification, and constant analytical checks, not just standard batch process. This molecule features a benzene ring core with a nitro group at the third position and a bromomethyl group at the fourth. That specific layout sets the foundation for its unique performance in both laboratory and industrial syntheses.

    A difference in position — whether a nitration or bromination step takes place before or after introducing carboxylic acid — can dramatically alter the resulting product’s reactivity and compatibility with downstream reactions. Through direct bromomethylation strategies and precise temperature control, we generate a product with minimal ortho/para isomers. As manufacturers, this means real reductions in by-products, less loss during isolation, and cleaner product for the next chemist in the pipeline. No one wants a multi-step process to stall because of unknowns in a building block; clarity at this step means savings on time, solvents, and troubleshooting.

    From Bench to Industry: Consistent Building Block for Complex Synthesis

    Our choice to focus on this compound arose from repeated requests among pharmaceutical researchers, agrochemical developers, and contract manufacturers. Each sought a balance of precise reactivity and ease of handling — a compound that anchors aromatic ring transformations, then allows elegant expansion into more complex targets. The bromomethyl moiety generates highly reliable nucleophilic substitutions under a variety of conditions. This can't be said for all benzylic bromo compounds, which sometimes introduce unwanted side reactions or interfere with downstream transformations. Our staff routinely verifies the absence of dibromo and over-nitrated contaminants; strong quality controls serve our own sense of professional pride long before compliance letters arrive from procurement auditors.

    The nitro group on this molecule carries electron-withdrawing effects, making the aromatic ring less reactive toward unintended substitution. During esterification, amidation, or during Suzuki/Miyaura cross-coupling, predictable reactivity reduces guesswork — and this has real consequences when hundreds or thousands of dollars in reagents ride on a single coupling. In custom API syntheses, our customers report high yields and lower purification demands by using our 4-Bromomethyl-3-Nitrobenzoic Acid, echoing the importance of a carefully fabricated starting point. Even downstream in the process, a single point of impurity could mean extra columns, lower throughput, and lost hours. Without consistent purity at the benzoic acid stage, syntheses risk interruptions at every later transformation.

    Physical Handling and Storage: Lessons from a Decade of Production

    Purity is more than a certificate. Years on the floor have proven how inventory aging, packaging atmospheres, and fine particle distribution affect the real working quality of this compound. Our workshop controls temperature and humidity, minimizing risks of clumping or gradual decomposition. Our team employs robust drying and vacuum sealing cycles, preserving the product’s extended shelf-life and preventing atmospheric moisture from activating hydrolysis or changing flow performance. Every container, large or small, leaves with tamper-evident seals — not just for show, but because we've seen first-hand how loose caps or small leaks lead to yellowing or caking, headaches every laboratory staff would rather skip.

    Handling a powder that tends to static cling or forms fine dust clouds demands thought-out protocols. We've engineered our lot packaging to pour with minimum waste and to avoid fine aerosols that present both loss and inhalation risks. These details stem from lessons learned on production lines — an ideal that every manufacturer should pass from shop to receiving dock. Application in automated dispensing equipment in high-volume plants also drove us to tighten sieving specifications, reducing risk of blockages or uneven dosing at customer sites.

    Setting Benchmarks in Bench Chemistry and Scale-Up

    From small-scale pharmaceutical projects to semi-bulk agrochemical plants, users rely on predictable reactivity and physical consistency. When organizations seek to transform the bromomethyl group — perhaps through nucleophilic substitution with azides, secondary amines, or via Suzuki coupling — every batch’s minor variation could influence success. The distinction is clear when comparing a molecule carefully purified at the manufacturing stage to one simply decanted and shipped. Less careful operators sometimes sell mixtures where the position or quantity of the nitro and bromo substituents are not clearly controlled, leading to batch-to-batch surprises. The benefits of investing in high-quality manufacture translate directly to the bench and, ultimately, to the bottom line.

    Tolerating lower standards at this stage multiplies waste and error in later steps — no synthesis team wants to invest in an elaborate functionalization, separation, or oxidation, only to discover the building block failed to deliver. This product’s golden yellow color, free-flowing powder feel, and resistance to color changes across months of storage speak to rigorous process controls. In twenty years, our quality team has traced only a handful of customer inquiries back to the starting material itself — a record we guard with pride, because it represents both deep technical experience and a hands-on understanding of what synthesis teams need.

    Comparisons with Other Benzoic Acid Derivatives

    What makes 4-Bromomethyl-3-Nitrobenzoic Acid stand apart? Many benzoic acid derivatives line specialty supplier shelves: from simple methylbenzoic acids to substituted nitro analogs or chlorinated versions. The bromomethyl substitution offers a particular advantage for downstream transformations, notably higher leaving group ability and smoother transition metal-catalyzed couplings than corresponding chloromethyl versions. Nitro placement at the meta position ensures high selectivity during activation steps; placement of both functional groups avoids unwanted double alkylation or uncontrollable side-product formation seen with adjacent substituents.

    Unlike unsubstituted benzoic acid or its low-molecular-weight analogs, this product resists rapid oxidative decomposition, and its dual-functionality saves synthetic labor by combining two strategic handles — redox-ready nitro and substitution-prone bromomethyl — on one aromatic base. For users shifting to this compound from 4-bromomethylbenzoic acid or simple 3-nitrobenzoic acid, the savings show up in fewer synthetic manipulations, easier isolation, and sharper NMR or chromatographic profiles. No two manufacturing lines are identical; learning these differences, and selecting the right building block from the start, makes life simpler for the industry's formulators and R&D staff.

    Safe Practice and Environmental Responsibility

    Sustainable manufacturing isn't just fashion for us — real people work in these factories each day. As a producer, we've seen the advantages of using enclosed systems and robust air-handling, both for operator protection and minimizing fugitive emissions. Nitrogen blanketing, well-sealed containers, and proper waste streams have become second nature. Our processes minimize the generation of dibromo or poly-nitrated waste; all effluent is routed through trusted neutralization and disposal vendors, verified by third-party audits every year.

    Long before international regulation caught up, we trained staff to use appropriate PPE, local exhaust, and regular benchtop swabbing. The days of casual handling and unchecked emissions - those belong in the past. Our current footprint meets, and often exceeds, regional and global standards for nitro and brominated specialty chemical manufacture. We regard this as non-negotiable, not just for regulatory compliance but simple ethics: a healthy crew, a clean workplace, and respect for the communities around our plants.

    Driving Innovation and Simplifying Synthesis Routes

    Within the walls of our pilot plant, the focus always moves toward efficiency and reliability. We have revised our bromination times to avoid over-reaction. Reagent selection — for both environmental compatibility and yield — results from frequent, open collaboration between chemists, engineers, and logistics personnel. Our transition from conventional batch methods to continuous flow reactors for this product mirrored lessons learned during scale-up: fewer impurity spikes, more even product qualities, lower energetic risk. These changes required serious investment, but the result is a supply chain less vulnerable to global price fluctuations or raw material shortages.

    We work closely with client R&D teams, testing new downstream reactions and providing detailed impurity profiles. By sharing analytical insights transparently, researchers adapt more quickly, skipping days or weeks of trial-and-error. The best manufacturers do not merely push tonnage; they support partnership, predict challenges, and educate users on process nuances. Some colleagues transferred to pharma and agrochemical research still call for advice on scale-up reproducibility — a point of pride, and a reminder that production expertise and deep chemistry knowledge walk side-by-side.

    Traceability, Batch Integrity, and Ongoing Improvement

    Every lot of 4-Bromomethyl-3-Nitrobenzoic Acid receives a unique tracking code. Our traceability program tracks the history of each batch, from raw benzoic acid to the final finished canister. That granular chain-of-custody doesn't just serve recall readiness — it helps us improve each run. Reviewing in-process yield drops or impurity shifts has led to real upgrades in reactor design and operator training. We see this as more than box-ticking for auditors.

    A standout case from years ago demonstrated the value of such documentation. A customer in need of material with especially high bromomethyl purity for a novel catalyst discovered a rare side-impurity. Instead of defensive posturing, we traced the batch history, identified a stirrer speed flaw, and made corrections within a week. That openness grows customer trust. The effort invested in traceability also sharpens our internal training: operators, supervisors, and managers all gain a clearer sense of cause and effect, from the pilot line to the finished drum.

    Pushing Forward: The Future of Benzoic Acid Derivatives

    Markets move fast. Customers increasingly request greener alternatives, shorter syntheses, and ever-tighter impurity controls. Having spent years refining our handling and analytical methods, we consistently update our technical and safety documentation to match new regulatory needs. Our R&D group experiments with continuous process improvements, testing alternative solvents and seeking lower-energy protocols for bromination and nitration steps. Environmental impact assessments and life-cycle analyses shape ongoing programs — not just to avoid penalties but because we, as manufacturers, live near our plants just like everyone else.

    Moreover, constant changes in permitted impurity levels, shipping restrictions, and storage standards challenge old habits. Instead of resisting, we embrace the opportunity to learn and upgrade both equipment and technique. The last decade has shown that small incremental changes — tighter in-process controls, cleaner drying rooms, faster packaging — yield big dividends in customer satisfaction and regulatory harmony.

    Insights from the Manufacturing Floor

    The best practices for handling, processing, and packaging of 4-Bromomethyl-3-Nitrobenzoic Acid developed over time, informed by missed shipments, customer feedback, and continual inspection. We have invested in automated bottle fillers, HEPA-filtered handling rooms, and comprehensive batch logs because each improvement means safer workers, less loss, better batch uniformity, and fewer product returns.

    Collaboration with glassware and equipment suppliers, lab-scale engineer visits to pilot lines, and offsite benchmarking help us stay informed about new tooling and materials. Hearing from technicians who handle the packages daily keeps our focus practical and direct. Feedback on pourability, dusting, resistance to caking, and even label clarity all return to our process improvement loop. Knowing the quirks of this product as only a manufacturer can — from its scent in a fume hood to the way its crystals break apart under slight pressure — keeps our process out of the theoretical and grounded in daily reality.

    Contributing to Complex Synthesis Solutions

    The real impact of 4-Bromomethyl-3-Nitrobenzoic Acid shows up in the efficiency and precision it offers to our users. Whether serving as a stepping stone to dye intermediates, pharmaceuticals, or specialty polymers, this product saves time and money for chemists in pursuit of difficult targets. Our manufacturing expertise, rooted in a tradition of quality and operational skill, means less worry about variability and greater confidence at every downstream step.

    Years of observing reactions, adjusting flows, and training staff have sharpened not just our technical skills, but our sense of service. Our clients expect us to solve problems before they become larger issues, to keep impurities and contaminants away from their sensitive chemistries, and to support them through every regulatory and technical change. That responsibility shapes everything from raw material sourcing to the handoff of each container — always striving for reliability, transparency, and a genuine respect for the craft of fine chemical production.

    Final Thoughts

    Our commitment to 4-Bromomethyl-3-Nitrobenzoic Acid derives from the real-world needs of scientists and manufacturers who rely on precise, reliable, and safe aromatic intermediates. Through years of operational focus, investments in technology, and direct feedback from users, our approach to this important chemical offers confidence not only in its purity but in the expertise and dedication supporting every batch. Strong partnerships, open communication, and a deep respect for both process and product define our role as a true manufacturer in the landscape of specialty chemicals — and in the continued evolution of benzoic acid chemistry.