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1,2-Bis(Dichloromethyl)Benzene

    • Product Name 1,2-Bis(Dichloromethyl)Benzene
    • Alias 1,2-Bis(dichloromethyl)benzene
    • Einecs 221-867-9
    • 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

    902565

    Compound Name 1,2-Bis(Dichloromethyl)Benzene
    Molecular Formula C8H6Cl4
    Molecular Weight 243.94 g/mol
    Cas Number 16617-51-1
    Appearance Colorless to pale yellow liquid
    Boiling Point 315 °C (estimated)
    Density 1.38 g/cm³ (estimated)
    Solubility In Water Insoluble
    Refractive Index 1.580 (estimated)
    Flash Point >110 °C (estimated)
    Smiles C(c1ccccc1CCl)(Cl)Cl

    As an accredited 1,2-Bis(Dichloromethyl)Benzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle containing 100 grams of 1,2-Bis(Dichloromethyl)Benzene, labeled with hazard symbols, product details, and safety information.
    Shipping **Shipping Description:** 1,2-Bis(Dichloromethyl)Benzene should be shipped in tightly sealed containers under dry, cool conditions. Label as a hazardous material per local and international transport regulations. Protect from physical damage, heat, and incompatible substances. Ensure compliance with UN, DOT, and IATA shipping protocols for toxic and potentially environmentally hazardous chemicals.
    Storage **Storage for 1,2-Bis(Dichloromethyl)Benzene:** Store in a tightly sealed container in a cool, dry, and well-ventilated area away from direct sunlight. Keep away from sources of ignition and incompatible materials such as strong oxidizers. Use appropriate chemical storage cabinets if available. Label clearly, and ensure containers are protected from physical damage and moisture. Wear suitable protective equipment during handling.
    Application of 1,2-Bis(Dichloromethyl)Benzene

    Applications of 1,2-Bis(Dichloromethyl)Benzene in Industrial Manufacturing

    As a direct manufacturer, we supply 1,2-Bis(Dichloromethyl)Benzene for precise roles across several specialized chemical sectors. Below, we detail its industrial use cases, each with distinct compliance frameworks, dosage guidelines, process implementation, and resulting end products.

    1. Advanced Agrochemical Synthesis

    Many agrochemical formulators utilize this intermediate for the controlled synthesis of complex herbicide and fungicide actives, where the ortho-substituted dichloromethyl groups contribute to unique biological properties. Manufacturers often apply this compound in heterocyclic ring closure steps under meticulously controlled conditions to ensure selectivity and yield, integrating it into multi-stage reactions which deliver high-value crop protection ingredients. The critical handling protocols reflect its reactivity profile and the downstream demand for strict impurity minimization.

    Industry compliance standards

    • REACH (EC 1907/2006) registration and pre-registration
    • EPA TSCA Inventory requirements
    • ISO 9001:2015 certified agrochemical production processes
    • Directive 91/414/EEC for plant protection product legislation (Europe)

    Typical usage ratio

    • Usually 0.2–1.5 molar equivalents relative to the main substrate, adjusted according to the nature of target molecules and impurity profile following pilot batch trials.

    Downstream process integration

    • Dosed during the intermediate synthesis step prior to ring closure
    • Monitored via in-process GC-MS to ensure complete conversion
    • Integration with exothermic control in jacketed reactors

    Final product types

    • Triazole and strobilurin fungicides
    • Select herbicide intermediates for cereal and oilseed crop protection

    2. Specialty Polymer and Resin Modification

    Producers of high-performance resins and specialty polymers apply this compound as a chlorinated crosslinking agent. The material enters synthesis protocols where robust halogenated benzylic groups are required to impart flame-retardant properties or chemical inertness in cured thermoset systems. Exact dosing and residence time control are essential to avoid over-chlorination, which could hinder post-processing or mechanical integrity, and quality labs closely monitor residual monomers as per regulatory mandates.

    Industry compliance standards

    • UL 94 flame rating for final resin systems
    • RoHS Directive 2011/65/EU for hazardous constituents
    • ISO 14001 for environmentally responsible chemical operations
    • ASTM D256, D638 mechanical property testing of modified plastics

    Typical usage ratio

    • Between 0.5%–3.0% by weight in resin formulations, variably increased for higher lumen or halogen content in the finished polymer blend.

    Downstream process integration

    • Chlorinated agent is fed into polymerization or resin compounding reactor during the precuring phase
    • Mixing parameters adjusted to ensure complete integration and uniform dispersion
    • End of batch sampling checks for residual volatiles and degree of crosslinking

    Final product types

    • Halogenated epoxy laminates for electronics
    • High-barrier coatings for industrial packaging
    • Flame-retardant ABS or polycarbonate resins

    3. Pharmaceutical Advanced Intermediate Production

    Pharmaceutical companies implement this chemical during synthesis of certain heterocyclic scaffolds and benzylic derivatives, relying on its specific chloromethyl reactivity to construct moieties needed for non-commercialized active pharmaceutical ingredient (API) pre-stages. Strict process traceability and analytical release set high requirements for trace impurity control, and use always aligns with GMP expectations for advanced intermediates. Only trained personnel handle the compound under validated procedures to avoid contamination risks.

    Industry compliance standards

    • ICH Q7 GMP guidelines for API intermediate production
    • 21 CFR Parts 210/211 for US pharmaceutical manufacturing
    • European Pharmacopoeia section 5.20 for residual solvents
    • FDA DMF referencing for supplier qualification

    Typical usage ratio

    • 0.8–1.2 molar equivalents, with adjustment after process optimization and route scouting ensuring minimal byproduct formation.

    Downstream process integration

    • Charged during initial benzylic alkylation or condensation stages in the synthetic route
    • Integration frequently employs inert atmosphere to prevent side-reactions
    • Purity and reaction endpoint verified by HPLC and NMR

    Final product types

    • Chlorinated aromatics used as pharmaceutical intermediates
    • Advanced heterocyclic building blocks for new molecular entities

    4. Dye and Pigment Intermediate Manufacturing

    Producers of vat dyes and halogenated organic pigments leverage this molecule in sequence reactions to introduce dense chloromethyl functionalities, which are subsequently converted into colored chromophores by nucleophilic substitution and further coupling reactions. Batch and continuous dye workshops require highly specific material feeding protocols to ensure reproducibility in both shade strength and solubility characteristics, with particular attention to heat management due to potential exothermic transformation steps.

    Industry compliance standards

    • ISO 9001:2015 certified pigment and dye processes
    • Oeko-Tex Standard 100 for eco-label textiles
    • EN 71-3:2019 (Toy Safety — Migration of certain elements, for colorant applications)
    • ZDH/UMWELT/EN2 occupational safety for aromatic handling

    Typical usage ratio

    • Usually 0.5–2.0 molar equivalents during intermediate synthesis; final dose depends on intended chromophore density and process yields.

    Downstream process integration

    • Introduced at the halogenation or coupling precursor step
    • Processed in stirred vessels equipped for controlled temperature and pH
    • Color and purity screening conducted prior to downstream azo or anthraquinone derivatization

    Final product types

    • Halogenated vat dyes for textile printing
    • Organic pigments for inks and industrial paints
    Free Quote

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    Certification & Compliance
    More Introduction

    Introducing 1,2-Bis(Dichloromethyl)Benzene: Purpose-Built for Modern Synthesis

    Bringing Precision Chemistry to the Forefront

    As manufacturers deeply involved in the intricate processes of fine chemical production, we understand the drive that pushes R&D teams, formulators, and industrial chemists to seek higher efficiency, consistency, and purity from intermediates. 1,2-Bis(Dichloromethyl)Benzene stands out in the chlorinated aromatics range because it brings a distinct balance of reactivity and stability, which many other benzene derivatives cannot deliver. Over years of hands-on production, the feedback and results from downstream labs and facilities have reshaped how we approach the synthesis and quality assurance behind each batch.

    Our Production Philosophy: Absolute Consistency, Measurable Impact

    A molecule like 1,2-Bis(Dichloromethyl)Benzene earns its spot in advanced chemical schemes through consistent behavior and reproducibility. From the outset, our production lines have focused on controlling reaction conditions with close attention to temperature calibration, agitation rates, and purification steps, which keeps batch variations minimal and impurity profiles tightly within specs. Such attention flows from knowing most of our partners operate in regulatory-intensive fields, where even minimal off-spec contamination can set back timelines or introduce avoidable rework.

    This substance doesn’t get produced by blending off-the-shelf materials or attempting shortcuts; the synthesis route, typically starting with ortho-xylene as a precursor, requires precise dichloromethylation under strictly monitored conditions. Our reactors and inline monitoring tools, refined by years of trial and error, have allowed us to trim side-reactions that often trouble less experienced processors. What emerges isn’t just a finished product, but a reflection of the small improvements made possible only by staying tightly looped with customers, regulatory agencies, and our own lab teams.

    Model and Specification Overview

    We have seen assumptions in the market that batch-to-batch consistency in organic intermediates barely matters, given their planned transformation in larger synthesis routes. Direct experience tells another story. In our facility, we focus on a standard model specification – high-purity crystalline solid form with a consistently measured melting point in a narrow range. Most importantly, the product achieves a 98% minimum assay by gas chromatography with minimal detectable impurities. Each lot undergoes rigorous odor, appearance, and dissolution testing in both polar and non-polar media, delivering performance more suited for actual lab and pilot plant use rather than as a generic off-the-shelf addition.

    We understand that storage and handling figure prominently into practical usefulness. Moisture pickup, caking, and chlorinated byproduct tainting plague imported or haphazardly packaged product. That’s why every lot is double sealed, nitrogen blanketed, and shipped in tested containers rated for extended shelf-life. Having spent years tuning our packing lines, we’ve dropped breakage rates to near zero and kept caking almost unheard of, which matters for any operation where downtime or process upsets inflict real penalties.

    The Real-World Role of 1,2-Bis(Dichloromethyl)Benzene

    Rather than treating this molecule as a lab curiosity, we have learned through collaborations and feedback that its true value sits in driving efficient, low-waste catalytic applications, advanced material synthesis, and as a building block in custom agrochemical and pharmaceutical manufacturing. The dichloromethyl substitutions at positions 1 and 2 give the parent benzene ring a kind of selective reactivity that’s hard to replicate using simpler mono-chlorinated compounds or unsubstituted benzenes. The electron-withdrawing effects of the chlorines fine-tune subsequent reactions — whether it’s cross-coupling, directed ortho-metalation, or electrophilic substitution — allowing chemists to exploit reactivity windows that stay closed to more basic feedstocks.

    Our partners often share details on shifting from standard dichlorobenzenes or toluene derivatives to our product, only to see improved yields, sharper selectivity, or suppressed side-product formation. Reaction times can drop, waste volumes shrink, and workups simplify, translating into real-world cost reductions and improved environmental footprints. Industrial-scale applications in advanced polymer intermediates also benefit; thermal degradation is reduced and unwanted polymerization side reactions decrease, supporting more controlled, scalable outcomes.

    Direct Experience vs. Generic Sources

    Generic producers sometimes overlook the detail-centric requirements that scale-up manufacturing demands. As manufacturers embedded from early-stage pilot trials through to commercial batch runs, we bridge gaps that pure traders or resellers cannot. On several customer projects, we have supplied tailored lots — fine-tuning not only physical form but also modifying packaging formats based on downstream handling equipment, whether that means drum, bulk bag, or lined tote. The rationale grows from hands-on problem solving, not top-down abstraction, and our technical support staff maintains an ongoing advisory role, feeding direct user feedback back into our plant teams.

    In pharmaceutical synthesis, trace-level byproducts from poorly controlled dichloromethylations can jeopardize regulatory filings or trigger expensive purification steps. In agricultural chemical development, unwanted isomers or off ratios can undermine field trial reproducibility, leading to slowdowns in registration and commercialization. Because we conduct all synthesis in-house, tracking each input back to origin with full chain-of-custody documentation and performing staged root-cause analysis when anomalies appear, real troubleshooting happens. No abstract promises, just data, results, and incremental process change.

    Respecting the Chemistry: Chemical Distinctions in Practice

    Not all aromatic dichloromethyl compounds behave alike. The ortho positioning in 1,2-Bis(Dichloromethyl)Benzene creates an electron environment motorcycles apart from the more commonly available para-monosubstituted grades or unchlorinated ring systems. Coupling and substitution reactions proceed differently; selectivity shifts, and reactivity windows open or close. Years of batch records have shown that switching between this material and alternatives forces chemists to reset expectations for reaction temperature, catalyst loadings, and even workup conditions.

    The point isn’t just a difference on paper. It impacts real-world throughput and efficiency, especially as processes push toward higher atom economy or green chemistry requirements. Those relying on standard dichlorobenzenes sometimes encounter persistent side-chain oxidation or fragile intermediates. Our product’s precisely placed dichloromethyl groups make downstream hydrogenation or crosslinking more effective and predictable, saving time and shrinkage in precious metal catalyst losses. Feedback loops with customers have confirmed lowered byproduct formation on scale-up and smoother transitions from lab to plant, a benefit that shows up directly in quality assurance reports and reduced waste disposal fees.

    Usage in Industry: Learning from Actual Outcomes

    Years spent addressing the evolving demands of specialty chemical and life science companies have driven us to deepen our understanding of how 1,2-Bis(Dichloromethyl)Benzene performs across process stages. As an intermediate for specialty resins and high-performance polymers, it delivers more reliable chain extension than standard isomers, especially under harsh polymerization regimes. In directed metallation assemblies, it shortens cycle times and simplifies protecting group strategies, gaining a foothold in advanced pharmaceutical intermediates and custom reagents designed for one-off target molecules.

    Chemical engineers, when scaling out new synthesis routes, appreciate that the physical form and purity of intermediates determine much more than just conversion rates. Particle size can make or break an automated feed protocol, and off-gassing from poorly stabilized product can force costly ventilation fixes. By focusing on user feedback and engaging in field visits when process issues arise, our teams have helped more than a few customers debug reaction off-profiles by tracing issues to packaging or storage variables as much as chemistry.

    Tackling Ongoing Challenges

    The chemical industry rarely stands still; purity requirements, safety expectations, and environmental regulations grow tighter every year. We take part in industry groups focused on best practices and emerging risk management approaches, constantly probing our own supply chains and people for ways to outperform older standards. Recent focus on sustainable production has pushed us to optimize solvent use and energy profiles, resulting in lower overall emissions per ton produced. Waste minimization at source, along with solvent recovery systems, now plays a vital role in daily operations, rather than remaining an afterthought controlled by compliance alone.

    Customers prize reliability, not just in delivered specs or paperwork, but in practical, repeatable success during usage. The complexity added by safety documentation, transportation limitations, and ever-changing global regulations continues to stretch smaller players and generic producers. By integrating compliance as an automatic output of our automated batch management systems, we take pressure off our client’s teams, enabling more focus on core R&D or formulation work, and less on legal or customs surprises.

    Innovating for Scale and Sustainability

    Process improvements rarely happen in a vacuum. We work with clients, academic partners, and regulatory agencies to keep synthesis routes as direct and clean as possible — not just for our bottom line, but because piloting new approaches on our own equipment exposes pain points or optimizations that often slip past pure theory. Introduction of inline analytical sensing, continuous purification streams, and waste-heat reclamation have emerged naturally by inviting critique from the very chemists and operators that use our output.

    Some decades back, dichlorinated aromatics posed environmental headaches through improper disposal or poorly controlled venting. Modern requirements, coupled with in-house expertise, have led us to cut vent losses and phase out legacy batch practices. Today, every kilogram produced offers a fuller paper trail and less environmental trade-off.

    Partners focused on biobased polymers or next-generation energy storage materials now request tailored performance batches for pilot plant demonstrations. We respond by tuning not only the chemical form but also shipment type and safety labelling, reflecting ongoing dialogue with the same technical and EHS teams that must defend the project's viability under regulatory review.

    Shared Progress, Honest Results

    The lesson learned from years in chemical manufacturing isn’t about chasing the most exotic compound or simply responding to commodity trends, but about earning trust through consistent performance, real communication, and openness about technical challenges. With each feedback loop and project partnership, our product changes — not always in headline specifications, but often in the behind-the-scenes improvements that add value where it counts: less downtime, fewer surprises, cleaner downstream processing, reduced loss rates, and faster regulatory clearances.

    Our main priority is supporting teams pushing the limits of synthesis or industrial chemistry by supplying an intermediate that holds up under pressure. Plenty of so-called equivalents can claim similar label specs, only to fail in subtle, process-altering ways during routine use. Our approach to 1,2-Bis(Dichloromethyl)Benzene is rooted in continuous production, open technical exchange, and an evolving process grounded in evidence and industry best practice.

    Looking Ahead

    Our focus remains on standing behind every production lot through its lifecycle, answering technical queries rapidly, and supporting clients as they scale from bench to commercial output. Each advancement in our synthesis or supply approach draws on feedback from those actually handling, using, or troubleshooting the product in their daily work. Over time, this approach lifts our own standards and helps drive broader industry improvement.

    By staying close to the chemistry, respectful of process demands, and clear-eyed about practical performance, we continue to move 1,2-Bis(Dichloromethyl)Benzene beyond textbook listings—making it a tool chemists, chemical engineers, and process teams can count on, batch after batch.