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1,3-Dibenzoyloxybenzene

    • Product Name 1,3-Dibenzoyloxybenzene
    • Alias Phenyl 3-benzoyloxybenzoate
    • Einecs 211-937-2
    • 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

    234408

    Cas Number 5611-38-7
    Molecular Formula C21H16O4
    Molecular Weight 332.35 g/mol
    Iupac Name 1,3-bis(benzoyloxy)benzene
    Appearance White to off-white solid
    Melting Point 186-190 °C
    Solubility In Water Insoluble

    As an accredited 1,3-Dibenzoyloxybenzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 1,3-Dibenzoyloxybenzene, 25g, is packaged in a sealed amber glass bottle with a tamper-evident cap and chemical label.
    Shipping 1,3-Dibenzoyloxybenzene should be shipped in tightly sealed containers, protected from moisture and light, and cushioned to prevent breakage. It must comply with relevant chemical transport regulations, labeled appropriately with hazard information, and handled by trained personnel. Transport should be at ambient temperature unless otherwise specified by the supplier’s safety data sheet.
    Storage 1,3-Dibenzoyloxybenzene should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible materials such as strong oxidizing agents. Protect from moisture and direct sunlight. Label the container clearly and avoid excessive heat. Use proper personal protective equipment (PPE) when handling and ensure appropriate spill containment measures are in place.
    Application of 1,3-Dibenzoyloxybenzene

    Applications of 1,3-Dibenzoyloxybenzene in Industrial Manufacturing

    As an established chemical raw material supplier with direct production capability, we supply 1,3-Dibenzoyloxybenzene to specialized downstream sectors that require reliable purity, consistent quality, and material traceability. Below we detail its principal industrial application scenarios, specific formulation techniques, industry standards, and typical product outcomes based on actual customer integration.

    1. High-Grade UV Absorber Production for Polymer Films

    Leading polymer manufacturers incorporate this compound as a critical UV stabilizer precursor in specialty film manufacturing. It serves as an intermediate during synthesizing complex benzophenone-type absorbers, which enable clarity retention and color fastness in high-performance films used in agricultural, packaging, and electronic shielding applications. Thorough control of feedstock quality directly impacts film resistance to UV-induced degradation.

    Industry compliance standards

    • ISO 4892-2:2023 (Plastics – Methods of exposure to laboratory light sources)
    • REACH (EC) No 1907/2006 – Annex XVII restrictions
    • RoHS Directive 2011/65/EU for electronics packaging
    • GB/T 20103-2006 (China National UV-resistance Test Standards for Plastics)

    Typical usage ratio

    • Ranges from 0.1% to 1% by polymer mass, dependent on film thickness, transparency demands, and weathering cycle length

    Downstream process integration

    • Integrated as a reactive intermediate during the synthesis of benzophenone UV absorber compounds, followed by melt compounding or masterbatch blending with film-grade resins

    Final product types

    • Photostable polyethylene and polypropylene films
    • Transparent solar panel backsheet films
    • Food-grade packaging wrap with enhanced UV resistance
    • Specialty greenhouse covering materials

    2. Fine Chemical Intermediate for Liquid Crystal Material Synthesis

    Manufacturers in the high-performance electronics sector use this material within the organic intermediate synthesis chain for nematic and smectic liquid crystal compounds. Precise control of its purity enables downstream production of stable liquid crystals with tight tolerance on dielectric and viscosity properties, integral to display panel fabrication. Its consistently low impurity profile is especially crucial during scaled-up batch reactions for display-grade intermediates.

    Industry compliance standards

    • IEC 62341-5-1 (OLED Display Standards – Chemical Raw Material Purity)
    • JEITA CP-2013 (Japanese Standards for Electronic Chemical Raw Materials)
    • IATF 16949:2016 (Electronic Components Manufacturing Quality Management)

    Typical usage ratio

    • 0.5–2.5 mol% equivalent in the organic synthesis step, adjusted for target mesogen chain configuration and desired physical phase intervals

    Downstream process integration

    • Charged during the condensation stage of custom liquid crystal formulations, followed by crystallization purification before esterification to yield final mesogenic compounds

    Final product types

    • Liquid crystal mixtures for TFT-LCD displays
    • LC intermediates for advanced signage and high-resolution panels
    • Smart window light-control films

    3. Functional Additive for Thermoset Resins in Electrical Insulation

    Electrical insulation material manufacturers employ this compound as a specialty monomeric additive in high-temperature thermoset resin systems to impart enhanced thermal stability and electrical insulation properties. Its aromatic structure contributes to the resin’s oxidative resistance, which is critical during curing and sustained high-load operations. Adjusted blending proportions influence not just the dielectric constant but also the mechanical toughness relevant to transformer, generator, and switchgear parts.

    Industry compliance standards

    • IEC 60216 (Thermal Endurance Properties of Insulating Materials)
    • UL 746B (Polymeric Materials – Long-term Property Evaluation)
    • GB/T 1408.1-2016 (Electrical Insulation Testing – Breakdown Strength)

    Typical usage ratio

    • 0.3% to 1.2% by resin mass, tailored to final required comparative tracking index (CTI) and target insulation class rating

    Downstream process integration

    • Premixed with resin base prior to cross-linker and catalyst addition; incorporated through high-shear mixing and in some cases pre-reacted as part of the oligomer backbone

    Final product types

    • High-voltage insulation sheets
    • Epoxy-based electronic encapsulants
    • Molded transformer bobbins
    • Heat-resistant circuit board substrates

    4. Key Ingredient for Specialty Coatings in Precision Optics

    Precision optics suppliers turn to this raw material for controlled incorporation in UV-absorbing and anti-yellowing coating systems, particularly where enduring optical clarity is non-negotiable. As a precursor to tailored oligomeric UV stabilizers, it allows manufacturers to produce coatings with durable light transmission and minimal haze growth under long-term exposure. Its reactivity profile is especially valued in solvent-based formulations for fine lens and filter applications.

    Industry compliance standards

    • ISO 9211-1:2022 (Optics and Photonics – Coating Durability)
    • IEC 60825-1 (Lasers and Laser Equipment Safety)
    • RoHS compliance for optical instrument coatings

    Typical usage ratio

    • 0.2–0.9% w/w as a synthesis feedstock for resin-bound UV inhibitor compounds, with final addition rates tuned to target up to 99% UV transmittance blocking

    Downstream process integration

    • Introduced in the controlled synthesis of UV-blocking resin additives, followed by dispersion into the solvent phase and application in thin-film coating lines

    Final product types

    • Anti-yellowing coatings for camera lenses
    • UV-resistant optical fiber cladding materials
    • Spectral filter coatings for scientific instrumentation
    • Scratch-resistant safety glasses
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    Certification & Compliance
    More Introduction

    Understanding 1,3-Dibenzoyloxybenzene: From Manufacturing Experience

    A Close Look at 1,3-Dibenzoyloxybenzene Production

    At our facility, the process for producing 1,3-Dibenzoyloxybenzene has grown out of years on the shop floor, with hands-on attention to quality at every step. There’s a methodical approach from raw material sourcing through to the final QC release; nobody here cuts corners, because small impurities have a way of showing up at the worst moment, undermining downstream results for customers relying on consistency. Every technician on the line understands that the end users—often researchers and developers—notice even minor flaws in purity. Each detail, even the way we filter intermediates, matters in creating a product that does its job batch after batch.

    Specifying What Sets This Compound Apart

    1,3-Dibenzoyloxybenzene stands out as a crystalline organic compound designed for uses that demand more than mere basic benzoate derivatives. Its chemical identity stems from a core benzene ring, symmetrically substituted at the 1 and 3 positions with benzoyloxy groups. This structure gives the molecule solid thermal stability and a substantial melting point, and it resists yellowing when exposed to lab lights or mild temperature swings. Batch testing kinks out the variables in color, flow, and form, as variance in these areas affects final formulations downstream. This is not a generic filler or bulk ingredient; it sees use mainly where an exacting chemical backbone is required.

    Product Model and Specifications: Why They Matter

    In practice, we produce 1,3-Dibenzoyloxybenzene with regular particle size verification to limit dust formation and clumping during storage or transfer. Typical purity tested by HPLC frequently exceeds 99%, with residual solvents and low-level byproducts tightly controlled. Oxidative degradation, one of the more common pitfalls in this line of chemistry, often gets overlooked by smaller producers, but here the material undergoes a final inert atmosphere purge. A successful product comes down to preventing these little side reactions from sneaking in and diminishing its effectiveness for the end user. Our staff weighs each drum with a practiced eye; if they notice a batch is trickier to handle, we flag and investigate. This is not something one can delegate to lab automation—an experienced glance picks up the difference.

    Color often tells its own story. Clean, white crystals mean the upstream chemistry remained on track, with few color bodies or tars creeping over from the initial benzoic acid reactions. Dullness or yellow tint rings alarms and triggers a look over the entire production log. There’s pride in holding a clear sample up to the light, knowing nothing from early oxidation slipped through, no off-spec solvent residues went undetected, and that the drying process preserved the flow and structure for reliable discharge into customer processes.

    The Role of Experience in Ensuring Consistency

    Years dealing with the realities of chemical production have taught us that consistency is the result of routine, careful monitoring. It doesn’t just mean repeating steps with robotic precision. Human eyes—there on the shop floor—catch what automated sensors miss: a drift in humidity that tells you a dryer door didn’t seal, a faint ammoniacal smell hinting at degradation, a sudden increase in filtration times from a slight clog. These observations prevent costly defects long before they ever leave the site.

    We’ve had batches where a supplier's slight change in benzoic acid shelf life caused problems a month later. Recognizing patterns like this, logging small deviations, and following up with extra analysis have allowed us to develop a playing field where product recalls and customer rejections stay rare. This level of attention keeps the compound performing identically every time. No distributor or reseller truly understands this reality, because they work with what they’re given. In-house manufacture means accountability from start to finish.

    Uses & Practical Application: Beyond Theory

    From ongoing talks with formulators, it’s obvious this compound rarely lands in basic prep work. Instead, you find it in advanced research, specialty polymer additives, and the synthesis of uncommon organic intermediates. It remains a favorite because of its dual benzoyloxy configuration, which resists hydrolysis and holds steady as a building block when milder chemicals falter. Our clients often mention its stability under variable heat cycles, which saves headaches in multi-step syntheses where each impurity or side-reaction can wind up compounding into an unusable mess.

    This is not the cheapest benzoate available. Its uses rarely overlap with lower-cost alternatives that don’t deliver the same backbone. End users in analytical chemistry remark on the fine line between a clean chromatogram and one marred by ghost peaks—the wrong impurity here can double a lab team’s troubleshooting workload overnight. Because every lot comes attached to its full analysis spectrum, folks know exactly what’s going into their pilot plant or research bench. Repeat customers keep coming back, and we see it as proof that this care pays off where it matters.

    Why 1,3-Dibenzoyloxybenzene Holds an Edge Over Similar Products

    Plenty of other benzoate derivatives fill the market. Some share partial functional similarities but tend to lag behind in either reactivity control or stability. The unique double benzoyloxy substitution in this product creates a balanced molecular rigidity, which reduces unwanted breakdown, especially in high-shear mixing or thermal cycling applications. Instead of fragmenting under stress, the molecule stays whole, which matters during downstream processing like polymerization or advanced surface treatments.

    Comparison with mono-benzoyloxybenzene products reveals a significant distinction: those single-substituted cousins often break down faster under processing conditions and double as sources of byproduct formation. Side product residues disturb delicate synthesis balances, especially where temperature ramping is required. Our analysis has shown that, over prolonged testing, the dual-substituted molecule outperforms in both storage and actual use, rewarding formulators who invest in higher-quality ingredients.

    Not to be confused with a host of ‘look-alike’ benzoate materials, our 1,3-Dibenzoyloxybenzene avoids problem contaminants thanks to tighter control of the starting benzoyl chloride and highly optimized purification steps. These details extend shelf life and boost compatibility across a range of organic and polymer applications. Many users report increased yields and less waste compared to those working with lower-grade or less aggressively purified variants.

    Experience-Driven Process Improvements

    The team learned that small process tweaks, like extended filtration times or an extra recrystallization pass, pay back over time in fewer customer complaints and shorter troubleshooting cycles. Some years back, an uptick in end-user returns traced back to a slight change in solvent drying protocols. Addressing the root—adjusting the dry-down temperature curve and enhancing solvent recovery—reduced the defect rate to near zero. These refinements are simple in theory, but they require a workforce that understands the impact of a single decimal place on HPLC results or the significance of offbeat melting points.

    While some manufacturers skip long quality checks to increase throughput, our facility sticks to slow, deliberate analysis for each finished lot. Staff rotate through production and QC, sharing learnings. This inside view from both ends—production and analysis—leads to more robust reactions, less “off-spec” dramas, and far lower chances of a ruined production run at a customer’s site.

    Customer Feedback Shapes Ongoing Quality Advancements

    Clients regularly share test results and practical observations. Their real-world feedback about issues like caking during winter shipping or trace solvent signals in finished products help us tune the production line. The exchange is not just one-way—our manufacturing chemists have walked many technical support calls, guiding process engineers through optimizing conditions for running 1,3-Dibenzoyloxybenzene in pilot-scale reactors. This kind of engagement delivers raw, unfiltered perspective, directly feeding process improvements back at our plant.

    There are occasional requests for ultra-fine grades or custom-sized crystals, prompting us to experiment with batch modifications and alternative drying equipment. Instead of forcing a one-size-fits-all mentality, we openly share where our strengths lie and suggest trusted partners for requests outside standard specs. This transparent back-and-forth forms lasting relationships with technical users and, from our view, sharpens our technical edge over faceless trading firms and bulk resellers.

    Risks, Supply Chain Issues, and Mitigation

    Supply chain instability routinely affects small specialty molecule manufacturing. The upstream cost of benzoyl chloride, shipment delays for catalyst procurement, or political fluctuations can raise barriers. Our approach banks on strategic reserves of the key inputs and pre-qualifies multiple sources. No one wants to halt a campaign due to a missing drum or find out late in the month that a shipment’s purity slips below tight benchmarks. We keep these risks top of mind by conducting quarterly reviews, adjusting procurement plans based on market shifts, and maintaining high-touch supplier relationships. This hands-on logistics management improves on-the-ground resilience far more than relying on distant intermediaries.

    Operating as a manufacturer grants daily awareness of these issues. It’s easier to recognize unique lot characteristics—maybe a subtle change in odor points to upstream variation—when you stand at the blending tanks each morning. Compared to offsite distribution, on-site manufacturing staves off error propagation, and issues are addressed before product ever leaves our hands.

    Research Trends and the Broader Picture

    Recent years brought greater attention to sustainable process chemistry and solvent use reduction, areas where 1,3-Dibenzoyloxybenzene holds promise. Because it remains chemically stable across common green solvents, it fits newer protocols with tighter regulatory scrutiny and more demanding residual limits. Formulators need consistent backbone compounds to build new, environmentally safer products, and our experience with multi-stage solvent recovery and minimal-waste crystallization keeps us on the leading edge of compliance.

    Colleagues at universities and private labs often reach out regarding unusual applications—sometimes requesting analytical insight, other times seeking to push the compound’s function beyond historical literature. In these projects, close cooperation between manufacturer and research lab brings discoveries to light that would otherwise go unshared. Sharing real-world application data helps guide further optimization and ensures production remains relevant in changing research and industrial landscapes.

    Final Thoughts: The Value of True Manufacturing Expertise

    Daily, we see the difference that manufacturing experience and direct process insight bring to the table. 1,3-Dibenzoyloxybenzene, in the hands of a dedicated production team, becomes more reliable, higher-performing, and ultimately more valuable to users building new technologies or refining established formulations. Underneath each drum sits a legacy of practice, learning, and real improvement — not just numbers on a certificate.

    Every lot tells a story: from starting materials vetted by experienced receivers, to careful blending and monitored purification, through to each batch turning up clear and crystalline when it lands at the customer’s site. It’s not a commodity or a byproduct. It’s the result of hands-on know-how that stands behind every sack, every time.