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2,4-Difluorobenzyl Chloride

    • Product Name 2,4-Difluorobenzyl Chloride
    • Alias Benzyl chloride, 2,4-difluoro-
    • Einecs 249-779-0
    • 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

    357222

    Cas Number 348-58-1
    Molecular Formula C7H5ClF2
    Molecular Weight 162.57 g/mol
    Iupac Name 1-(Chloromethyl)-2,4-difluorobenzene
    Appearance Colorless to pale yellow liquid
    Boiling Point 75-77°C at 20 mmHg
    Density 1.276 g/mL at 25°C
    Refractive Index n20/D 1.533
    Melting Point -26°C
    Flash Point 81°C
    Solubility Insoluble in water; soluble in organic solvents
    Smiles ClCC1=C(C=C(C=C1)F)F
    Purity Typically ≥97%

    As an accredited 2,4-Difluorobenzyl Chloride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 2,4-Difluorobenzyl Chloride is supplied in a 25g amber glass bottle, securely sealed, with hazard labels and product information.
    Shipping 2,4-Difluorobenzyl Chloride is shipped in tightly sealed containers, protected from moisture, heat, and light. It should be classified under hazardous materials regulations due to its corrosive and irritant properties. Transport must be in compliance with local and international chemical shipping standards, using appropriate labeling and documentation to ensure safe handling and delivery.
    Storage 2,4-Difluorobenzyl chloride should be stored in a tightly sealed container in a cool, dry, and well-ventilated area, away from heat, sources of ignition, and incompatible materials such as strong bases or oxidizers. Protect from moisture and direct sunlight. Use secondary containment to prevent spills, and clearly label storage areas to avoid accidental exposure or improper handling.
    Application of 2,4-Difluorobenzyl Chloride

    Applications of 2,4-Difluorobenzyl Chloride in Industrial Manufacturing

    As a specialist producer of high-purity 2,4-Difluorobenzyl Chloride, we support a range of advanced industrial sectors by supplying this intermediate for specialty molecule synthesis. The following sections outline its use in key application scenarios, the process requirements, and final goods manufactured by downstream customers.

    1. Pharmaceutical Intermediate in Non-Steroidal Anti-Inflammatory Drug (NSAID) Synthesis

    2,4-Difluorobenzyl Chloride is a critical alkylating agent in the synthesis of certain non-steroidal anti-inflammatory drugs, particularly for introducing difluorobenzyl moieties into advanced pharmaceutical intermediates. It enters the synthetic route after key aromatic amines or phenols are prepared, allowing downstream manufacturing of APIs targeting analgesic and anti-inflammatory properties. Aromatic substitution using this intermediate requires strictly controlled temperatures and inert atmospheres to avoid byproduct formation. Every batch use is subject to trace impurity scrutiny, and its role is pivotal in achieving designed pharmacological profiles in finished medications.

    Industry compliance standards

    • ISO 9001:2015, ICH Q7 (Good Manufacturing Practice for Active Pharmaceutical Ingredients)
    • Current Good Manufacturing Practice (cGMP) standards
    • United States Pharmacopeia (USP) relating to pharmaceutical intermediates
    • European Pharmacopoeia quality specifications for APIs

    Typical usage ratio

    • Used at 1.2–1.5 molar equivalents per target amine/phenol reagent, adjusted according to yield and impurity rejection requirements

    Downstream process integration

    • Introduced during late-stage functional group modification after formation of the core scaffold, following condensation or acylation steps

    Final product types

    • Bulk anti-inflammatory active pharmaceutical ingredients (APIs)
    • Solid oral dosage forms (tablets, capsules)
    • Topical anti-inflammatory gels and ointments
    • Pre-formulated injectable solutions

    2. Agrochemical Active Ingredient Manufacturing

    2,4-Difluorobenzyl Chloride serves as a key building block for the production of difluorinated phenyl derivatives used as fungicidal and herbicidal actives. Its use in this sector is highly regulated, with composition and residue levels critical from synthesis through formulation. Chlorination and fluorination patterning achieved using this intermediate directly affect the biological selectivity and persistence of the final crop protection agents. Chloride introduction is performed under controlled alkylation conditions, followed by downstream coupling to triazole or pyridine structures.

    Industry compliance standards

    • FAO/WHO Specifications for Pesticides
    • REACH Regulation (EC) No 1907/2006
    • ISO 17025 certified laboratory methods
    • Local pesticide registration dossiers (e.g., EPA 40 CFR Part 180 in the USA)

    Typical usage ratio

    • Applied at 0.8–1.3 equivalents per coupling intermediate, adjusted for crop activity spectrum and regulatory maximum residue limits

    Downstream process integration

    • Added after primary ring closure, as the key alkylating agent for active site modification; followed by coupling and purification steps

    Final product types

    • Liquid and wettable powder fungicides
    • Herbicidal concentrate formulations
    • Crop protection premixes containing difluorobenzyl moieties
    • High-durability seed coatings

    3. Advanced Material Synthesis for Electronic Chemicals

    Many specialty electronic chemicals use difluorinated benzyl groups to tune dielectric, insulation, and photographic properties in final materials. In microelectronics, 2,4-Difluorobenzyl Chloride is incorporated during the synthesis of photoresist additives and functional polymers, facilitating targeted chemical modifications while maintaining high purity. Strict impurity control is mandatory, with all process steps monitored for halogen content. These applications require integration in solution polymerizations or precision surface treatments under inert and dry conditions.

    Industry compliance standards

    • SEMI C23 and SEMI C47 electronic grade chemical standards
    • IEC 62474 (Material declaration for electronic products)
    • RoHS Directive (2011/65/EU) substance restriction requirements
    • ISO 14001:2015 (Environmental management systems)

    Typical usage ratio

    • Between 0.3–1.0 wt% relative to monomer or resin system, fine-tuned for polymer chain length and film properties; adjustments made based on end application dielectric constant needs

    Downstream process integration

    • Incorporated during polymer backbone functionalization or as a reactant in surface modifier synthesis before purification and casting phases

    Final product types

    • Microelectronic photoresist materials
    • High-purity insulating films
    • Reactive intermediate solutions for circuit fabrication
    • Chemical vapor deposition (CVD) precursor blends

    4. Custom Synthesis of Fragrance Intermediates

    Difluorobenzyl moieties impart unique olfactory characteristics valued in fine fragrance and aroma chemical manufacturing. The chloride is utilized in Friedel-Crafts and Williamson-type reactions to yield stable, low-odor intermediates that anchor signature notes in perfumery bases. The addition must follow IFRA and local safety requirements concerning residual halide and allergenic impurity levels, with usage ratios optimized for cost and downstream processing efficiency without leaving sensory-impacting residues.

    Industry compliance standards

    • IFRA (International Fragrance Association) Standards
    • EU REACH Regulation (EC) No 1907/2006 for flavor and fragrance chemicals
    • ISO 9235:2013 (Aromatic natural raw materials)
    • National Flavor and Fragrance regulatory frameworks (e.g., FEMA in the USA)

    Typical usage ratio

    • Employed at 0.2–0.6 molar equivalents per aromatic alcohol or phenol precursor, fixed according to targeted aroma threshold and stability requirements

    Downstream process integration

    • Utilized after crude fractionation, as the benzylating agent in ether or ester formation, followed by thorough washing and vacuum distillation

    Final product types

    • Signature synthetic fragrance intermediates
    • Blended perfume bases for fine fragrances
    • Aroma ingredients for household and personal care products
    • Floral and woody motif concentrates

    5. Synthesis of Specialty Coatings and Surface Modifiers

    Chemical manufacturers use 2,4-Difluorobenzyl Chloride to introduce specific halogenated functionalities into high-performance coating resins. For industrial paints and surface protectants, it enables the tuning of chemical, UV, and abrasion resistance by modifying urethane or epoxy backbones. It enters as a functional monomer modifier at intermediate stages, with compliance tied to VOC and halogen content limits for downstream industries such as automotive and aerospace.

    Industry compliance standards

    • ISO 12944 (Paints and varnishes—Corrosion protection of steel structures)
    • ASTM D3960 (Standard Practice for Determining Volatile Organic Compound Content)
    • EU Directive 2004/42/EC (VOC requirements for coatings)
    • REACH and RoHS guidelines for chemical additives in coatings

    Typical usage ratio

    • Introduced at 0.5–2.0% by mass in resin blends, set according to end-use performance metrics like UV stability and chemical endurance

    Downstream process integration

    • Mixed during resin synthesis phase, typically post-primary polymerization, followed by crosslinking and rheology adjustment

    Final product types

    • Industrial automotive topcoats
    • Specialty anti-corrosive primers
    • High-durability architectural coatings
    • Protective films for aerospace hardware
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    Certification & Compliance
    More Introduction

    2,4-Difluorobenzyl Chloride: Reliable Quality Backed by Practical Experience

    Meeting Real Production Demands With 2,4-Difluorobenzyl Chloride

    Producing 2,4-Difluorobenzyl Chloride in our own facility gives us a close look at the needs and challenges facing modern chemical processes. A good product starts with consistency and one mistake can bring an entire batch down, especially for sensitive downstream users. We monitor quality at every step, from the choice of raw material to purification, and the resulting output shows in the feedback we get from long-term customers. This compound, known for the molecular formula C7H5ClF2, serves a niche but growing sector where precision chemistry cannot be left to chance.

    Our Road From Reactors to Reliable Supply

    We manufacture 2,4-Difluorobenzyl Chloride with careful control over process parameters and tight purification. Many clients notice the colorless to light yellow liquid as an indicator of purity, but behind the scenes, our analytical records speak louder than any visual check. The main advantage we offer, compared with mass-produced alternatives, comes from our refusal to cut corners on distillation and water-removal. Customers in pharmaceutical synthesis and agrochemical intermediates report fewer issues with residual moisture and side products from our batches. Every kilogram owes its origin not only to modern reactor design but to the vigilance of operators who respect what makes a run successful.

    Specifications Set by Real Needs

    Users who order from direct manufacturers like us often want more than a stock item—they want control over batch quality for their own synthesis. Our standard material meets a GC purity >99%, confirmed by both routine and random sampling. Moisture remains below 0.1%. Typical chemical properties, including boiling point and density, track close to literature values, but our real pride shows in the reduced presence of monochlorinated or over-fluorinated byproducts. An intermediate with fewer impurities means fewer headaches, especially for researchers striving to push yields up and waste down.

    End customers let us know about problems in their own labs—for instance, sticky residues, batch discoloration, or uneven phase separation in organics. Each feedback loop has improved our own workflows. Year after year, we have managed to cut trace impurity levels, a step at a time, through equipment upgrades and cleaning protocols. Most importantly, shipment and storage reflect the real-life demands of chemical users: an air-tight drum with simple labeling supports quick accession and record-keeping at the customer’s site.

    Application Based on Real-World Outcomes

    Our 2,4-Difluorobenzyl Chloride primarily finds use as a building block in pharmaceutical research and agrochemical synthesis. In practical terms, it bridges a gap between starting material and high-value targets like fungicides, herbicide candidates, and selected APIs. Partnering with process chemists in this sector, we have seen customers struggle most often with unreliable supply from brokers—products sometimes arrived with unknown residues, inconsistent concentrations, or poorly documented origins, seriously disrupting pilot trials. As actual producers, we back each sale with traceable batch records, so anyone downstream knows what they are working with.

    Product performance isn’t a theoretical matter for users testing a new synthetic pathway or scaling a pilot batch. For example, a misplaced batch with high monochlorinated impurity can yield troublesome byproducts in aromatic substitution reactions, wasting hours of work and expensive ingredients. Bench-scale kinetic runs performed by our own chemists demonstrate how even minor differences in impurity can swing reaction outcomes or crystallization behavior. Once, a client’s gram-scale pilot created a troublesome tar because they swapped in material from an unknown third party. When they returned to our product, subsequent workup produced bright, clean crystals. Direct feedback like this keeps us grounded and always looking for improvement.

    Learning From Challenges: Purity and Consistency Tested

    We have learned from challenges on our own line as well. Scaling from liter-batch synthesis to multi-hundred kilos wasn’t seamless. Early runs suffered from minor exposure to atmospheric moisture, a root cause for part-per-thousand hydrolysis. After changing condenser design and investing in inert gas handling, we ended up with more reproducible moisture data and happier end-users. Routine in-house HPLC and GC-MS checks track key contaminants. Staff review batch records as a matter of habit.

    Raw materials also matter. We purchase certified grades of difluorotoluene as the root precursor and treat every new lot with caution. Rejecting borderline raw input may raise costs, but the end result supports our clients who are tired of seeing yields dip unexplained. Reliability means little without repeated evidence.

    Down-to-Earth Differences: Not Just Another Benzyl Chloride

    After years of producing various halogenated benzyl chlorides, differences rarely come from rhetoric—they reveal themselves in day-to-day outcomes. 2,4-Difluorobenzyl Chloride stands out with two fluorine atoms in distinct aromatic positions. Compared to plain benzyl chloride, or single-fluorine analogs, users see two main effects. Reactivity shifts moderately in basic conditions. For nucleophilic substitutions in water-poor environments, we noticed the difluoro version gives higher selectivity to mono-alkylated products. Many customers also comment on improved stability, especially in glass or fluoropolymer containers.

    On the matter of safety and handling, the difluorinated material carries different skin and respiratory irritant levels. Decades ago, we learned that workers moving plain benzyl chloride reported stronger odor and more frequent short-term respiratory complaints, even with proper fume extraction. With 2,4-difluoro analogs, exposure risk remains, but practical experience shows lowered volatility at ambient conditions. Facilities with less-than-ideal air handling choose this compound for ease of containment. Regulatory tracking also runs simple—clear labeling and container safety standards mean less confusion among warehouse and receiving teams.

    Customer Collaboration: Fact-Driven Progress

    Each client project brings up new insights that improve our own outlook. One pharmaceutical partner pushed us to lower trace formaldehyde impurity because their catalyst systems were extremely sensitive to small carbonyls. By tweaking purification steps to remove these traces, all users benefited from the improvements. Another specialty coatings customer came to us after repeated foaming and yellowing in their resin blends; detailed examination of their end products uncovered low-level acid chloride carryover. Within six months, adjustments in quench and washing reduced these complaints to near zero.

    Feedback from our partners has led us to adopt more sophisticated batch tracking. Early on, a client flagged inconsistent behavior in cross-coupling tests. Instead of fobbing them off, we opened our batch book and plotted each contaminant over time, overlaying their process data. This straightforward transparency formed the backbone of multi-year collaborations and mutual respect.

    Solving Downstream Issues: Hands-On Technical Support

    Many of our buyers work under tight timeframes and need rapid troubleshooting. Unlike traders, we field questions directly from technical teams within 12 to 24 hours. When someone reports deviation in endpoint pH during workup, or reduced conversion in a coupling step, we investigate with them. Access to every batch’s analytical profile often closes the loop faster than endless phone negotiations over assumptions. Each time we help a customer get back on track, our own documentation system improves. Lessons are then folded into in-house employee training.

    Our technical team carries firsthand synthesis experience. Several members have switched roles from customer-facing laboratory staff to production and QC management in our facility. Their viewpoint helps bridge the gap between “on paper” specs and “real world” reliability.

    Rethinking the Role of a Producer in Today’s Market

    Markets for fluorinated intermediates evolve as fast as global regulations and customer needs. Giving users reliable and trustworthy alternatives to shadowy third-party suppliers protects not just the user’s margins, but their reputation. Product returns and explanations for failed batches cost time and erode trust in the entire supply chain. Getting things right at the source means fewer complaints, faster adoption of new synthetic strategies, and, ultimately, stronger relationships that outlast any one transaction.

    We practice batch retesting for items held in stock beyond a shelf-life threshold. This avoids scenarios where a customer unknowingly accepts out-of-spec material just because a drum happened to get buried in a warehouse. Longtime customers notice the difference and report fewer headaches with documentation and regulatory inspections.

    Looking Forward: Sustainability and Process Safety

    Environmental and worker safety regulations are only tightening. Our own daily operations now incorporate solvent recovery, vapor containment, and real tracking of emissions. International standards, such as REACH and TSCA, require firms upstream and downstream to care about trace contaminants, batch consistency, and hazard profiles. We share full records with clients who must prove regulatory compliance.

    On a practical note, we train our facility staff to spot minor leaks, color shifts, or odors in storage drums long before they affect product quality. These early warnings allow us to avoid rework and prevent waste. By reinvesting in modern distillation and analytics, we reduce our own environmental load—and deliver cleaner product to every customer.

    In Summary: Value Rooted in Experience

    Supplying advanced intermediates like 2,4-Difluorobenzyl Chloride is not just an exercise in meeting specifications by rote. Practical manufacturing experience, a readiness to react to real feedback, and hands-on troubleshooting set producers apart from resellers. As chemistry evolves—with new process routes, green regulations, and growing demands for transparency—the old shortcuts lose ground. We have learned that consistency, openness, and a willingness to adjust processes support not just business continuity, but the daily needs of teams who rely on our materials to get their job done without disruption.

    Each batch of 2,4-Difluorobenzyl Chloride leaves our facility backed by more than just test results. It reflects countless cycles of learning, very direct feedback from users, and a real commitment to higher standards in specialty chemical manufacturing. Looking at the future of synthesis, we see products like this playing a bigger role as global demand for innovative, reliable, and safe building blocks only grows.