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1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione

    • Product Name 1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione
    • Alias Benzbromarone
    • Einecs 629-454-1
    • 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

    173295

    Iupac Name 1-[4-(2-Oxo-2-phenylacetyl)phenyl]-2-phenylethane-1,2-dione
    Molecular Formula C22H16O4
    Molecular Weight 344.36 g/mol
    Cas Number 25460-07-3
    Appearance Yellow crystalline powder
    Melting Point 178-181°C
    Solubility Slightly soluble in water, soluble in organic solvents such as chloroform and ethanol
    Density 1.30 g/cm³ (estimated)
    Boiling Point Decomposes before boiling
    Structure Type Aromatic diketone derivative
    Smiles O=C(C1=CC=C(C(C2=O)C(C3=CC=CC=C3)=O)C=C1)C(C4=CC=CC=C4)=O

    As an accredited 1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Brown glass bottle with tamper-evident cap holding 25g of 1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione, labeled with hazard and handling information.
    Shipping This chemical, 1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione, ships in tightly sealed containers under inert atmosphere to ensure stability. Packaging complies with relevant hazardous goods regulations. Products are securely cushioned to prevent breakage and labeled per international transport requirements. Expedited, temperature-controlled shipping is available upon request. Safety data sheets are provided with each shipment.
    Storage Store 1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible substances such as strong acids, bases, and oxidizers. Protect from moisture and heat. Label the container clearly and keep it in a dedicated chemical storage cabinet, following all standard laboratory safety protocols.
    Application of 1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione

    Applications of 1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione in Industrial Manufacturing

    As the original manufacturer of 1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione, we deliver this specialty intermediate to global industrial partners who require strict process reliability and regulated quality benchmarks. Below we detail established real-world application scenarios across the pharmaceutical, specialty polymer, organic pigment, and fine chemical synthesis industries, demonstrating the specific role this compound plays in outcome-oriented manufacturing chains.

    1. Pharmaceutical Intermediate for Antipsychotic Synthesis

    In pharmaceutical manufacturing, this diketone structure functions as a critical intermediate in the synthesis of certain atypical antipsychotic actives. It enters target reaction steps where aromatic diketones enable controlled condensation, supporting the molecular frameworks needed for final API formation. Formulation chemists select ratio levels based on the desired yield and regulatory-driven impurity control, adhering strictly to regional submission requirements. Bulk lots undergo repeated quality analysis to minimize batch-to-batch variation, maximizing downstream process qualification for drug-grade outputs.

    Industry compliance standards

    • US FDA cGMP (21 CFR Parts 210/211)
    • ICH Q7: Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • EU EudraLex Volume 4: GMP Guidelines for Medicinal Products
    • Ph. Eur., USP, ChP monograph guidance for relevant APIs

    Typical usage ratio

    • 0.8–1.1 molar equivalents per target API’s step, adjusted for yield/purity targets

    Downstream process integration

    • Charged into API synthesis at the condensation or cyclization stage (e.g. Mannich or Friedel–Crafts reactions)
    • Followed by solvent extraction, purification, and controlled crystallization

    Final product types

    • Atypical antipsychotic APIs (e.g., benzodiazepines, quinolinones with specialty substituents)
    • Pharmaceutical-grade intermediates

    2. Specialty Organic Pigment Manufacture

    Our diketone compound acts as a key condensation component for synthesizing polycyclic aromatic pigments commonly used in high-value coatings and plastics. This role depends on its reactivity with substituted anilines or naphthols under precise thermal control, yielding strong-color chromophores for non-food, non-cosmetic markets. Large-scale users depend on supply consistency for high batch uniformity and waste minimization during pigment formation, operating under chemical-specific environmental standards.

    Industry compliance standards

    • REACH (EC 1907/2006) Registration for industrial pigment usage
    • ISO 9001:2015 certified pigment production
    • OECD Environmental, Health, and Safety Guidance on Pigment Manufacture
    • Specific regional regulations on aromatic amines (e.g., Germany’s TRGS 614 limit values)

    Typical usage ratio

    • 5–15% by weight in batch pigment condensation, determined by targeted hue density and end-use polymer compatibility

    Downstream process integration

    • Introduced at initial coupling stage or post-nitration for pigment core construction
    • Subsequent milling, washing, and dispersion to achieve desired granule fineness

    Final product types

    • Aromatic diketone-based organic pigments (e.g., diarylide yellow analogs, polycondensed red pigments)
    • High-performance pigment masterbatches for plastics, inks, and coatings

    3. Precursor for High-Performance Polyimide Resins

    The ketone and aromatic functionalities of this raw material provide essential building blocks for high-temperature polyimide resin synthesis. Its incorporation in monomer blends influences color, glass transition temperature, and film mechanical properties. Polyimide processors require tight lot validation due to stringent aviation and electronics standards; our material enables precise stoichiometric control during polycondensation with dianhydrides, maximizing dielectric and thermal stability in finished resins.

    Industry compliance standards

    • ISO 14001:2015 for environmental management in polymer manufacturing
    • ASTM D5213 (Standard Specification for Polyimide Resins)
    • UL 94 and IPC-4101B (flammability and laminate testing for electronic base materials)
    • RoHS 2011/65/EU on restricted substances

    Typical usage ratio

    • 10–30% mole fraction based on targeted molecular weight and desired thermal profile in polyimide precursor solution

    Downstream process integration

    • Enters at initial poly(amic acid) formation with aromatic dianhydrides and diamines
    • Chain-extended and imidized under controlled thermal conditions for film or sheet casting

    Final product types

    • High-temperature polyimide films
    • Flexible printed circuit substrates and aviation wire insulations
    • Polyimide-coated fibers for industrial filters

    4. Key Intermediate for Benzilic Acid Derivative Synthesis

    This molecule functions as a primary diketone input in the industrial preparation of benzilic acid derivatives, widely used as building blocks for specialty agrochemicals and fine chemical ligands. Its efficient transformation through base-catalyzed rearrangement permits high-yield production of target carboxylic acids, which form core scaffolds for downstream molecule elaboration. Operational efficiency and GMP adherence drive plant integration, with extensive batch monitoring to satisfy downstream analytical release objectives.

    Industry compliance standards

    • ISO 9001:2015 for process and documentation control
    • Chinese GB/T 19001-2016 for chemical synthesis standards
    • Indian Factory Act 1948 (handling of hazardous intermediates)
    • REACH Annex XVII: Registration and restrictions on downstream derivatives

    Typical usage ratio

    • 1.0–1.25 molar equivalents per rearrangement batch, with excess adjusted to maximize conversion while meeting purity specs

    Downstream process integration

    • Added at initial stage of benzilic acid condensation, typically with potassium hydroxide or similar alkali
    • Followed by product neutralization, separation, and column purification

    Final product types

    • Benzilic acid and functionalized analogs (e.g., halogenated or alkylated derivatives)
    • Precursor substances for specialty agrochemicals and catalysts
    Free Quote

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    Certification & Compliance
    More Introduction

    Introducing 1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione

    In-House Expertise and the Pursuit of Consistency

    Stepping onto our production line each morning, the talk often turns to details that only come from years working with challenging organic compounds. There’s nothing casual about handling 1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione at scale. Experience shapes every stage, from the first weigh-in of raw materials to the moment we seal every drum. Considerable care goes into maintaining batch integrity for a molecule with the complexity of three aryl rings and two reactive diketone groups. Unlike more forgiving simple ketones, this compound can’t be rushed or shortcut without consequences. Everyone here remembers the long months optimizing the oxidation stage to ensure the phenylacetyl group matures without overreacting, which sparked endless internal debates over catalyst ratios and solvent purging.

    The expectations come not just from our own team’s pride, but from formulators who depend on us. This material doesn’t provide leeway if you’re lax about control over trace impurities. Benzilic acid rearrangement, side-chain halogenation, oxidative ring closure and decarboxylation steps all have a way of popping up if an operator’s attention drifts for even a shift. We’ve clocked time in troubleshooting small but maddening inconsistencies that don’t show up on a spec sheet but make all the difference to the next person down the chain.

    Understanding the Chemistry in Practice

    Chemists often browse catalogs without considering the behind-the-scenes labor that keeps subtle isomers or colored tars in check. This particular dione exhibits remarkable rigidity in crystal form, which does wonders for analytical reproducibility in synthetic development or quality control. Its crystalline habit, defined by symmetrically positioned phenyl groups, holds up to scrutiny in spectroscopy and chromatography because the manufacturing controls align with the underlying molecular symmetry. We’ve fielded calls from synthesis groups reporting that off-the-shelf analogues from broader traders fell short under pressure—common when the supply chain prioritizes volume over authentic process knowledge.

    Our batches avoid the yellow tint or sticky residues too easily found in lots where the endgame focuses only on nominal purity. Spectral fingerprints and melting point give away minor production stumbles. Some think a single distillation or chromatography will rescue each lot, but we’ve watched those efforts stretch timelines and invite missed steps. So we take the route of oven-drying to a fixed weight, rather than relying on ambient loss, and pair that with microanalytical checks at each stage, which has cut the rate of retrials and downstream headaches to almost zero.

    Model Variations and Production Insights

    Production models for this type of diketone evolve by necessity. When we first started, we worked exclusively in single-jacketed glass reactors, keeping batch sizes low for pilot verification. We witnessed firsthand how scaling up led to issues no spreadsheet suggested—changes in stir speed, gradient heating, and exothermic control all influenced product texture. Working with the rigid schedules of fine chemical manufacturing, small variations in solvent ratios or agitation altered everything from filterability to the isolation yield. We recently shifted a portion of output to continuous. The reactor setup with automated feed adjustment shaved off hours from reaction time and gave us a level of homogeneity in product lots our earlier systems couldn’t manage. It’s no exaggeration—after adopting inline analytical feedback, discrepancies between consecutive lots shrank within the noise of our best analytical methods.

    Within our site, we maintain two main ‘models’: the research-scale, carried out on glass with methods extending batch flexibility for custom syntheses, and the dedicated kilogram-scale process that focuses on time and solvent economy. End-users rarely notice unless they compare side-by-side with older open-batch samples. Material from the continuous line presents fewer fines and greater reproducibility in melting behavior, reflective of a steadier crystallization. On-site storage and dry transfer protocols are all tailored to each model, since even a day’s contact with humid air can introduce weight variance or seed polymorphic conversion inside containers.

    Product Specifications—A Ground-Level Perspective

    Specifications only tell half the story. If a sample’s melting point falls above 142°C, we know moisture or incomplete reaction never compromised it. We keep color checkpoints strict; clean white crystals mean the processed mother liquors held back colored side products. For material used in structure–activity relationship (SAR) studies or pharmaceutical intermediates, our specifications push well below 0.5% trace aromatic by-products and set strict standards for loss-on-drying under vacuum. Regular users of competitive lots have called in expressing surprise at how smoothly our material dissolves or recrystallizes—likely a function of minimal oxidation by-products or trapped aromatics, which our extra cold-filtration counters.

    Shipping observations have changed our packaging methods. Skipping the use of bulk bags in favor of double-lined, nitrogen-flushed drums means our product rarely arrives clumpy or inhomogeneous, even across long hauls. Extended storage trials in our own warehouse have confirmed zero caking over a year, a regular pain point for buyers of processed diones from distant resellers. It’s the result of both high-vacuum finish and rigorous attention to packaging controls, rather than fancy surface treatments or excessive stabilizers.

    Usage—Shared Lessons from Decades of Synthesis

    We’ve worked alongside customers using this compound across a span of projects, from core building blocks for CNS-active research molecules to advanced materials with photosensitive behavior. Earlier research made us keenly aware that the placement of phenylacetyl groups impacts reactivity in an array of coupling reactions, especially electrophilic halogenation, alkylation, or nucleophilic substitutions. Teams in metabolism research lean on the reliable structure to introduce heavy labels, and predictability means fewer false positives or artifacts.

    Physical consistency also comes into play for those making scale-up intermediates for functionalized biaryls. Our material consistently runs clean in Suzuki or Heck couplings, surprising some first-time users who dealt with batch-to-batch haze or polymeric gel formation from other sources. From our seat, that’s a direct result of controlling trace moisture and residual base at the granulation stage—details lost when production gets pushed to minimum specification. Several users switched to our compound after testing recovery losses in chromatography and noticing our lots leave almost no oily residues.

    Diagnostics and sensor researchers have turned to this compound for its electron-acceptor qualities, leveraging its diketone functionality in new optoelectronic devices. Stability over shelf life remains central, as even minor hydration in the routing or a stray contaminant pushes performance out of range. To that end, our ongoing collaborations with these research teams feedback new requirements we iterate for, often adjusting post-synthesis drying or switching to purer solvent grades long before other suppliers move to catch up.

    The Differences We Won’t Gloss Over

    People ask us what separates this product from alternatives, especially listings rolled out by trading companies or intermediaries who source ‘good enough’ material for mere bulk chemical distribution. Our answer doesn’t boil down to some vague promise of quality; it’s in the physical product and the lived experience of those who use it. Direct manufacturing places us closest to the real chemistry, letting us see how minor upsets at one step ripple through stability, purity, and downstream compatibility.

    Bluntly, third-party sources rarely match the analysis we include as standard—by the time intermediaries ship to a broker, two or three stages have left the controls behind, and nobody takes responsibility for the final minute contaminants. We don’t see standoffs with regulatory bodies or rejected lots because our documentation backs each batch with traceability, from raw inputs to the specific line operators who signed off after packaging. This sort of detail allows research partners to audit us on-site and catch potential pitfalls before they escalate, which almost never happens in a less engaged environment.

    Several large manufacturers who tried to outsource this intermediate came to us following issues with inconsistent solubility or excess chromophoric impurities frustrating their final stages. Reworking batches because a substrate fails to dissolve or filter smoothly can torpedo weeks of scheduling. Our familiarity with homogenous crystallization and timed solvent exchanges minimizes these setbacks. The feedback loops between operators and QC staff cut rework time; we don't punt problems down the line for the next shift. For some, that might sound mundane, but anyone juggling high-value downstream chemistry would appreciate the difference immediately.

    Supporting Purpose-Driven Science and Manufacturing

    Out on the floor, our staff doesn’t just fill quotas. Each run matters to the person signing the batch record. There’s a growing sense among us all that the work we do directly supports teams striving for medical breakthroughs, novel materials, or new detection technologies. Our factory stands apart because it responds to new requirements as they emerge. If a research group flags a troublesome impurity absent in standard testing, our troubleshooting sessions run late into the evening until we identify it, remove it, and fortify the process.

    The regulatory scrutiny in chemical manufacturing sharpens everyone’s focus. All our veterans know the difference between sailing through annual audits and scrambling to explain gaps when records get checked. Modern buyers come equipped with their own assays and increasingly sophisticated needs. They’re fluent with advanced analytics and demand transparency over supply routes, potential allergens, or residual-byproducts. We answer this call with documented batch histories, regular updates on material changes, and supportive data—never holding back technical information behind sales claims.

    Environmental Responsibility and Worker Safety

    Solvent recovery, closed transfer lines, and personal exposure monitoring matter to us because workers preparing, handling, and packaging these intermediates should leave the factory as healthy as they entered. Our in-house protocols limit the use of halogenated solvents, prefer multi-use glassware over disposable plastics, and plan for low-waste outputs wherever possible. Rather than tout ‘greener chemistry’ with buzzwords, we invest in practical reductions in waste, strict vapor capture, and safe secondary containment.

    We choose not to cut corners with disposal or shortcut environmental controls, not only for compliance, but out of respect for those who spend decades here. The reductions in off-spec waste, filtered residues, and air emissions all grew from painstaking fine-tuning, not just toggling a few parameters under regulatory suggestion. Routine improvements to air quality, solvent exposure controls, and spill response make practical sense, especially after seeing the long-term health impacts in older factories across our region.

    Partner Dialogue and Ongoing Evolution

    Years spent supporting diverse research and manufacturing clients sharpened our sense for how demands shift. Rather than waiting months for a market trend or a new regulation to work its way through distributors’ notices, we keep our staff connected with those actually formulating products in the lab. Regular conversations with those groups have led to tweaks ranging from alternate drying techniques to whole new grades of this dione. Some want specialized packing formats for robotic loading, others value staged deliveries for long-term projects. Each request gets a review at production meetings, and the team discusses feasibility with an eye to not compromise the bedrock reliability our process offers.

    Listening closely has led to advances in lot traceability, certifications, and support for tailored documentation. It’s become routine for us to help clients address regulatory filings or meet specialty needs for documentation—be it REACH coverage, hazard compliance, or heavy metal analysis—without farming out those services to a third party. Our knowledge base keeps us adaptive, old habits mixing with innovation so new users find consistent success across different sectors.

    Conclusion—Why Direct Manufacturing Still Matters

    Anyone can list generic specifications and call their product reliable, but those walking the factory floor every day know staying consistent involves more than minimum requirements. The hard-earned experience of refining a process to deliver reproducible 1-[4-(2-Oxo-2-Phenylacetyl)Phenyl]-2-Phenylethane-1,2-Dione that meets chemists’ real-world needs doesn’t arise overnight. Direct control empowers honest troubleshooting, faster responses to unexpected challenges, and an unfiltered relationship with the individuals who use the product.

    That’s how we’ve grown: by offering a product anchored in daily craftsmanship, batch-to-batch traceability, and the responsiveness only genuine manufacturers maintain. Sharing in the progress of applied science and industrial manufacturing pushes us to stay sharp, support partner needs, and keep every process step anchored to practical, thoughtful chemistry.