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1,3-Bis(4-Bromophenyl)Propanone

    • Product Name 1,3-Bis(4-Bromophenyl)Propanone
    • Alias 1,3-Bis(4-bromophenyl)acetone
    • Einecs 629-868-8
    • 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
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    Specifications

    HS Code

    778322

    Name 1,3-Bis(4-Bromophenyl)Propanone
    Cas Number 3147-75-9
    Molecular Formula C15H12Br2O
    Molar Mass 380.07 g/mol
    Appearance White to off-white solid
    Melting Point 149-153 °C
    Smiles O=C(CC1=CC=C(Br)C=C1)CC2=CC=C(Br)C=C2
    Purity Typically >97%
    Solubility Slightly soluble in organic solvents
    Synonyms 1,3-Di(4-bromophenyl)propan-1-one
    Inchi InChI=1S/C15H12Br2O/c16-13-5-1-11(2-6-13)9-10-15(18)12-3-7-14(17)8-4-12/h1-8H,9-10H2
    Storage Conditions Store at room temperature, protected from light and moisture

    As an accredited 1,3-Bis(4-Bromophenyl)Propanone factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

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    Application of 1,3-Bis(4-Bromophenyl)Propanone

    Applications of 1,3-Bis(4-Bromophenyl)Propanone in Industrial Manufacturing

    1,3-Bis(4-Bromophenyl)Propanone serves as a specialized building block within the fine chemicals sector. Its molecular properties enable targeted use in high-value downstream processes, specifically within pharmaceutical synthesis, advanced polymer production, specialty agrochemical intermediates, and organic electronic materials. As an established manufacturer, we support global partners with tightly controlled manufacturing batches and consistent quality documentation designed for regulatory compliance and process integration across these critical sectors.

    1. Pharmaceutical Intermediate for CNS Active Compounds

    This compound often acts as a key ketone intermediate for the synthesis of active pharmaceutical ingredients (APIs) in the central nervous system segment. Reactions typically require this raw material in Grignard or reductive amination routes, directly impacting final step yields and impurity profiles. Regulatory agencies monitor the entire synthetic pathway for GMP adherence, and suppliers must meet documentation requirements for traceability and impurity control.

    Industry compliance standards

    • ICH Q7 GMP Guide for Active Pharmaceutical Ingredients
    • EU Good Manufacturing Practice, Part II
    • 21 CFR Part 210/211 (US FDA)
    • European Pharmacopoeia (Ph. Eur.) and United States Pharmacopeia (USP) impurity thresholds

    Typical usage ratio

    • Used at 0.8–1.3 molar equivalents relative to secondary amine substrate, with adjustment based on target yield and scale. Concentration and purity controlled to under 0.3% total related substances.

    Downstream process integration

    • Charged into controlled-reactor systems during API synthesis, specifically in carbonyl addition or coupling stages. The ketone moiety directly reacts in a monitored process using validated analytical methods, ensuring compliance with impurity carryover limits.

    Final product types

    • CNS drug molecule intermediates (e.g., analogues of benzophenone derivatives)
    • API precursors for anticonvulsant or anxiolytic pharmaceutical products
    • Fine chemical intermediates for custom molecule libraries
    • Registered pharmaceutical bulk materials for finished dosage manufacture

    2. Monomer Precursor in Advanced Specialty Polymers

    The compound’s dual aryl bromide groups facilitate site-selective cross-coupling reactions, making it a favored monomer for specialty polymer chains with enhanced mechanical, thermal, or electronic properties. Strict handling procedures apply to pre-polymerization purification and post-reaction workup, as polymer performance relies on high-purity input and absence of trace metal contaminants. Customers in high-performance plastics and coatings industries require consistent batch-to-batch documentation.

    Industry compliance standards

    • ISO 9001:2015 certified production systems
    • REACH (EC 1907/2006) Registration for polymer inputs
    • RoHS Directive 2011/65/EU for electronics applications
    • ASTM D256-10 for polymeric material impact testing (where applicable)

    Typical usage ratio

    • Typically 2–10% by mole as a functionalized co-monomer, with actual loading tailored to adjust polymer backbone stiffness or introduce halogen functionality for flame retardancy. The amount depends on targeted polymer grade and downstream application.

    Downstream process integration

    • Used in Suzuki or Stille cross-coupling polycondensation steps. Material charged post-drying into anhydrous, inerted reactors. Strict control of catalyst ratios and residual bromine ensures uniform polymer molecular weight distribution. Analytical HPLC/GC used for purity confirmation pre-feed.

    Final product types

    • High-performance engineering plastics with halogenated backbones
    • Flame-retardant polymer resins and specialty coatings
    • Film substrates for flexible electrical circuits
    • Customized thermoset and thermoplastic intermediates

    3. Intermediate for Advanced Agrochemical Actives

    Downstream agrochemical manufacturers use this keto-aryl ingredient as an advanced intermediate for the synthesis of halogenated fungicide or herbicide scaffolds. Process management focuses on minimizing the formation of side-products that may be restricted by global regulatory guidelines. Product batches destined for agro use require in-depth impurity profiling, and delivery must follow strict safety data documentation to align with environmental and residue control standards.

    Industry compliance standards

    • FAO/WHO Specifications for Plant Protection Products
    • OECD Test Guidelines for Chemical Safety
    • ISO 17025-accredited laboratory testing protocol
    • EU Regulation (EC) No 1107/2009 on the market placement of plant protection products

    Typical usage ratio

    • Input at 0.6–1.0 mole equivalent in coupling or halogenation reactions. Variation determined by the downstream molecule’s substitution pattern and target active loading in the final formulation.

    Downstream process integration

    • Material introduced post-catalytic bromination or base-catalyzed condensation, typically in jacketed glass-lined vessels equipped for handling halogenated organics. Inline real-time monitoring of conversion rate ensures compliance with residue regulations.

    Final product types

    • Precursor chemicals for triazole- or pyridine-based agro actives
    • Key intermediates in patented fungicide and herbicide families
    • Reference standards for regulatory toxicology studies
    • Halogenated intermediates for experimental crop protection formulations

    4. Synthesis Component for Organic Electronic Materials

    Manufacturers in the organic electronics sector utilize this compound for its dual bromophenyl structure, which is compatible with step-wise construction of semiconducting or photonic cores. Controlled incorporation during the assembly of conjugated molecules supports product consistency for organic light-emitting diodes (OLEDs) and related optoelectronic devices. Raw material certification supports traceability for process audits and end-user product validation.

    Industry compliance standards

    • IPC-4101B for base materials in electronic applications
    • IEC 62474 for material declaration in electronics
    • RoHS and WEEE Directives compliance for restricted substances
    • ISO/TS 80004-8:2020 for nanomaterials used in electronics manufacturing

    Typical usage ratio

    • Used at 3–5% mol fraction in building block coupling, customizable for electronic energy band requirements and morphological control. Dosing aligns with iterative device layer optimization protocols in pre-commercial production runs.

    Downstream process integration

    • Introduced as a chain initiator or functional monomer during layered organic synthesis under inert atmosphere. Precise stoichiometry and trace element control are maintained. LC-MS and elemental analysis validate absence of ionic or metallic impurities that could affect device performance.

    Final product types

    • OLED core intermediates for display and lighting panels
    • Polymer-based thin-film transistors and memory devices
    • Organic photovoltaic molecule sets for solar cell production
    • Specialty semiconducting polymers for experimental optoelectronics
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    More Introduction

    Exploring 1,3-Bis(4-Bromophenyl)Propanone: Utility, Design, and Differentiation

    Introduction to a Distinct Organic Intermediate

    1,3-Bis(4-Bromophenyl)Propanone turns heads on lab benches and in scaling synthesis plants. By bringing together two brominated phenyl rings around a central propanone backbone, it opens doors for chemists who need more than a basic building block. Sitting at the heart of many advanced organic syntheses, this molecule gets picked for work that asks for specific reactivity and predictable transformation, especially where halogenated aromatic rings unlock unique downstream possibilities.

    Key Details Behind Its Design and Structure

    Every time I ran a reaction with brominated intermediates, the stability and specificity of these compounds kept the workflow steady. Here, with 1,3-Bis(4-Bromophenyl)Propanone, you have a molecule that balances a three-carbon central chain against the reactivity of para-bromine-substituted phenyl groups. Its chemical formula, C15H12Br2O, brings together a molecular weight that lands it among the heavier aromatic ketones, something that shows in both how it handles and how it performs in various organic transformations.

    Specification-wise, the purity, melting point, and spectral data serve as more than numbers — they protect your downstream yields and simplify analyses, whether in chromatographic separation or NMR confirmation. Sweep through academic literature and proprietary patents, and you spot this motif again and again, chosen not only for its own properties but for how it gives teams a head-start on complex synthetic aims.

    Comparing With Other Building Blocks

    Labs and commercial settings can choose from a spectrum of aromatic ketones and related halogenated compounds. What’s striking about 1,3-Bis(4-Bromophenyl)Propanone stands out in two main ways: the symmetrical substitution pattern and the impact of bromine at the para position on each aromatic ring. Many working chemists remember the labor of skating around unwanted side reactions when using monosubstituted analogs or unsymmetrical ketones. With this compound, you sidestep much of that. Symmetry in the molecular structure means predictable coupling reactions and fewer by-products during chain extension, cross-coupling, or condensation reactions.

    Look at a common comparator—benzyl bromides, or even benzoin derivatives. Those compounds work in plenty of routes, but the bis-para-brominated motif gives better control when heading into specific palladium-catalyzed transformations or stepwise nucleophilic aromatic substitutions. More traditional options will occasionally force long purification columns or toss up yield losses to side-chain scrambling. In contrast, 1,3-Bis(4-Bromophenyl)Propanone offers chemists a sturdier platform for building both linear and macrocyclic frameworks.

    Where Labs and Manufacturers Rely on This Molecule

    Organic synthesis looks simple on paper, but once flask meets bench top, the story gets messier. In my own work scaling up intermediate steps, finding a brominated precursor with good shelf stability and clear reactivity changed timelines and even budgets. Here, this compound gets tapped for multiple high-value transformations. Researchers value its dual brominated phenyl rings for Suzuki-Miyaura and Heck couplings, opening up routes to biaryl systems, advanced ligands, or even pharmaceutical scaffolds, depending on what else is brought into the mix.

    Process chemists often focus on route robustness and cost control, weighing precursors that reduce waste and reaction times. Large-batch producers see lower impurity loads and smoother purification cycles, since the symmetrical structure minimizes positional isomer formation during halogen-metal exchanges or subsequent functionalizations. The propanone linkage between both rings also offers a platform for various reduction, alkylation, and cyclization steps, which underlines why many multi-step drug syntheses put this intermediate on their starting list.

    Role in Advanced Applications

    Some organic intermediates change little about the reactions they enter, but 1,3-Bis(4-Bromophenyl)Propanone shapes outcomes in both fine and industrial chemistry. It’s a launching pad for new materials, particularly where electronic effects from para-bromine play a part. In specialty polymers and liquid crystals, the rigidity and electron-withdrawing effects of bromine turn the resultant chains into materials with tailored thermal or optoelectronic characteristics.

    In fields such as agrochemicals, specialty dyes, and energetic materials, the blend of phenyl and bromine forms also helps adjust physical and chemical behavior, from solubility profiles to photo-stability or even explosive potential. Each improvement comes through hands-on repetition: teams measure, tweak, run pilot reactions, and settle on this intermediate due to its reliable jump-off points for functional group installation.

    Safety, Handling, and the Importance of Reliable Sourcing

    Brominated organic compounds require respect, given their toxicity and environmental persistence. In my own lab days, gloves and fume hoods became non-negotiable whenever handling or reacting this class of chemicals. Product safety links directly to both the quality of synthesis and the attention to purification during manufacturing; small amounts of off-spec by-products can magnify risk during conversion or scale-up.

    Reputable suppliers ensure each batch meets rigorous purity checks by NMR, HPLC, and mass spectrometry. Impurities—insignificant in small amounts—have tempted fate more than once in scale-up scenarios, where heat, light, or metal catalysts trigger side-reactions. A solid safety culture asks not just for correct data sheets, but clear documentation of batch traceability, transport conditions, and prompt response to regulator audits.

    Proper storage — away from light, moisture, and incompatible materials — extends shelf life. Each time a bottle sits too long or crosses a temperature threshold, peroxides and other decomposition products threaten both worker safety and batch consistency. Investment in environmental safeguards, waste neutralization, and thorough training remain constant expectations in any reputable setting dealing with this intermediate.

    Why 1,3-Bis(4-Bromophenyl)Propanone Matters Now

    Markets and research priorities shift regularly, but demand for complex, customizable organics continues to ramp up as pharmaceutical, materials, and electronics companies step into new territory. This compound’s hard-earned reputation comes from how it solves problems inherent in less robust building blocks. Whenever a synthetic route calls for halogenated aromatics with consistent batch-to-batch performance, its value stays clear.

    Some chemists see this molecule as a “shortcut” in modular synthesis—a way to cut two or three steps out of a sequence that would otherwise eat up time and resources. In the race to develop new active ingredients or functional materials, the ability to rapidly assemble, derivatize, and optimize intermediates can shift a research project from maybe to breakthrough status. It becomes more than just a structural motif; it’s a tool that skilled hands can adapt to a dozen high-stakes needs.

    What Sets It Apart Compared to Lower Brominated or Non-Brominated Equivalents

    Moving from a lab perspective to scalable processes, using a fully para-brominated aromatic propanone beats out mono- or unsubstituted analogs on a range of tasks. It’s common to see chemists wrangle with regioselectivity headaches or face inconsistent yields from less functionalized counterparts. By locking in bromine at both para positions, syntheses keep higher selectivity and easier downstream elaboration.

    In substitution or coupling chemistry, high bromine content generally boosts reactivity under transition metal catalysis. Cross-coupling becomes more predictable, and product purification requires fewer steps. Purity during workup matters, since even small amounts of mono-brominated or plain phenyl contamination can complicate chiral resolution, final product crystallization, or analytical interpretation.

    Some ask about costs. Adding two bromine atoms has clear implications for price compared to non-brominated ketones. Still, in my own and others’ budgets, the savings in failed reactions and messy separations can far outpace any initial uptick in raw material cost. That calculus gets more pronounced in regulated environments, where avoiding unexpected impurities can cut regulatory trouble and unplanned downtime.

    Contributions to Green Chemistry and Sustainable Practices

    Brominated organics raise eyebrows in sustainability conferences, and rightly so. Environmental controls shape procurement and disposal choices. The biggest shift I’ve seen comes from process intensification, real-time monitoring, and “green” approaches to halogenated compound handling. Closed-loop systems for recovery and recycling of solvents mean less harmful waste, while new catalytic methods try to squeeze more product from each run.

    Product developers working towards greener synthesis now re-assess stepwise waste, looking for ways to eliminate redundant deprotection or avoid toxic phase-transfer catalysts. Whenever 1,3-Bis(4-Bromophenyl)Propanone enters a route and allows for milder reaction conditions or shorter process chains, it pulls double duty by reducing environmental load. Purchasing from facilities committed to best practices, with ISO and environmental certifications, further closes the loop between performance and responsibility.

    Quality and Traceability Keep Standards High

    Strong results depend on traceable, high-quality intermediates. Several times over my career, I saw surprises during scale-up traced straight back to small differences in the starting material. Batch-to-batch consistency, clear certificates of analysis, documented impurity profiles, and alignment with pharmacopoeial standards help avert last-minute troubleshooting, especially in highly regulated product lines.

    Beyond the laboratory, the quality imperative applies from the manufacturing plant through logistics and warehousing. Temperature excursions, container failures, or lapses in documentation at any step upend entire project schedules or even trigger costly recalls. Sourcing only from partners with clear feedback channels and transparent, fast problem-solving makes this a worthwhile, if sometimes underrated, investment.

    R&D and Innovation Driving New Uses

    Research chemists are constantly pushing the boundaries. In pharmaceutical discovery, novel scaffolds using this intermediate have shown fresh activity profiles and bioavailability patterns. New linkers or electronic modifications brought about by the double bromophenyl motif continue to receive attention in patent filings.

    In polymer science, structural rigidity and predictable reactivity steer new block copolymer designs, and not just for one-off lab runs. The electronics industry, hungry for bespoke semiconducting properties, increasingly draws on these intermediates to create materials for displays, sensors, or photovoltaic applications.

    Collaboration between academic institutions and industry R&D teams amplifies progress, with each side learning from the other’s bottlenecks and breakthroughs. It’s not just about scaling synthesis; it’s also about refining the underlying chemistry. Many incremental improvements—better yields, new analytical approaches, advances in process safety—trace back to the reliable performance of trusted intermediates like 1,3-Bis(4-Bromophenyl)Propanone.

    Supporting Safer and More Effective Chemical Manufacturing

    Reducing risks along the whole value chain starts well before the reagent reaches the chemist’s glove. Strong supplier relationships, robust product stewardship, and investment in worker training stack the odds in favor of safe, predictable, and repeatable chemistry. In environments that handle significant throughput—think pharmaceutical API production or advanced materials manufacturing—even a single shortcut or poor-quality batch can undo months of work.

    Peer-reviewed literature and industry benchmarks point towards semi-automated, data-logged handling of halogenated intermediates. Digital batch tracking, off-gassing controls, and more capable in-line detection systems are not just nice extras anymore. They let teams identify variances, trace root causes, and make course corrections with minimal waste or rework.

    Education, Training, and Lab Culture

    My earliest days working hands-on with reactive halogenated aromatics left deep impressions. Under the watchful eyes of experienced mentors, mistakes got caught early, protocols drilled into muscle memory, and a respect for concentration-dependent hazards stuck for good. Today’s training continues to stress not just what these compounds can do in the flask, but how they deserve careful, thoughtful handling at every stage.

    For students and novice chemists, supervised exposure to high-impact reagents like 1,3-Bis(4-Bromophenyl)Propanone builds foundation skills for both innovation and safe practice. In mature settings, peer review of experimental design, collaborative troubleshooting, and open-door access to senior expertise smooth out the learning curve and prevent costly missteps.

    Regulatory Landscape and Compliance Demands

    Working with halogenated intermediates brings with it a shifting compliance landscape. Regulators want to see tight control over waste streams, documented chain-of-custody, and consistent labeling in alignment with international norms. Several markets, including North America and the EU, actively monitor raw material imports, on-site inventories, and disposal processes to reduce both workplace and environmental risks.

    Manufacturers now integrate compliance from procurement through finished product shipment. Computerized record-keeping, rapid reporting, and routine internal audits give purchasing chemists and EHS teams confidence that what gets ordered translates to compliant chemistry on the bench or in the reactor. The feedback loop between industry standards and on-the-ground practice continues to tighten, helping keep labs and facilities aligned with both current best practices and emerging regulatory shifts.

    Looking Ahead: The Evolving Role of 1,3-Bis(4-Bromophenyl)Propanone

    Scientific and industrial landscapes move quickly. Whether for the creation of next-generation drugs, specialty materials, or cutting-edge electronics, chemists keep coming back to certain core intermediates that prove their value in trial after trial. 1,3-Bis(4-Bromophenyl)Propanone looks set to remain a key asset because it reduces inefficiency, manages complexity, and supports ambitious molecular design.

    As global teams chase new intellectual property, sharpen their green credentials, and drive towards safer, scalable routes, this intermediate stands as a real-world example of how incremental improvements in chemical design deliver progress across entire sectors. For chemists now and into the future, it offers not only a reliable tool, but a bridge to quicker discovery, tighter quality control, and more responsible manufacturing.