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2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione

    • Product Name 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione
    • Alias STL-51872
    • Einecs 227-637-3
    • 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

    668522

    IUPAC_name 2-(Diphenylacetyl)-2,3-dihydro-1H-indene-1,3-dione
    CAS_number 964-16-9
    Molecular_formula C23H16O3
    Molecular_weight 340.37 g/mol
    Appearance White to off-white crystalline powder
    Melting_point 220-222 °C
    Solubility Slightly soluble in water, soluble in organic solvents
    SMILES C1CC2=C(C1C(=O)C(=O)C2)C(=O)C(c3ccccc3)c4ccccc4
    InChI InChI=1S/C23H16O3/c24-21-13-12-17-15-20(25)23(26)22(17)18(21)16(14-8-4-2-5-9-14)19-10-6-1-3-7-11-19/h1-13,15H,14H2
    PubChem_CID 71270

    As an accredited 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The chemical is supplied in a 25g amber glass bottle with a secure screw cap, featuring hazard labels and detailed product information.
    Shipping 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione is shipped in tightly sealed containers, protected from light, moisture, and heat. It is classified as a laboratory chemical and transported according to relevant safety and regulatory guidelines, ensuring compliance with local and international chemical shipping regulations. Proper labeling and documentation are required for safe handling and delivery.
    Storage 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione should be stored in a tightly sealed container, away from light and moisture, in a cool, dry, and well-ventilated area. Keep it isolated from incompatible substances such as strong oxidizers. Store at ambient temperature, and ensure proper labeling. Use proper personal protective equipment (PPE) when handling. Follow all local, state, and federal regulations for storage.
    Application of 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione

    Applications of 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione in Industrial Manufacturing

    As a direct chemical raw material producer, we support multiple downstream industries with high-purity 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione. Our material functions as a specialized intermediate and performance additive in critical processes and finished products where precise compliance, dosage, and integration are mandatory. The following sectors represent the main application routes, each governed by industry-specific standards and processing systems.

    1. Pharmaceutical Intermediate for Anticoagulant Synthesis

    This molecule serves as a key building block in the synthesis of coumarin-based oral anticoagulants, specifically supporting the manufacture of phenindione and structurally related direct-acting agents. Pharmaceutical companies rely on its chemical reactivity for core ring construction, where stringent traceability and impurity control apply at every synthesis step. Material supply must align with validated route-of-synthesis protocols, allowing end users to achieve GMP-compliant production and reproducible batch-to-batch performance in finished active pharmaceutical ingredients.

    Industry compliance standards

    • ICH Q7 GMP for Active Pharmaceutical Ingredients Production
    • EU GMP Part II: Basic Requirements for APIs
    • Ph. Eur. (European Pharmacopoeia) and US Pharmacopeia Monographs (for related substances)
    • REACH registration (for import to EU market)

    Typical usage ratio

    • Applied at 1.05–1.25 molar equivalence relative to the coupling reactant in stepwise synthesis. Adjustment based on yield, impurity profile target, and desired final drug batch volume.

    Downstream process integration

    • Introduced in the heterocyclic ring-forming step for anticoagulant API production through condensation or acylation, followed by precise purification. Tracked through in-process quality control (IPC) and validated for residue limits.

    Final product types

    • Bulk pharmaceutical actives: Phenindione, derivatives for generic and branded finished drugs
    • Clinical tablet and capsule formulations (under strict validation)

    2. Specialty Organic Pigment Intermediate

    The compound supplies pigment and dye manufacturers with a tailored aromatic backbone for downstream functionalization, especially in the creation of high-performance yellow to orange shades for inks and plastics. Producers use its diketone motif for targeted coupling reactions, ensuring reproducible color tone and fastness. Its batch quality directly impacts light stability, migration resistance, and regulatory acceptability for consumer-contact applications and professional printing systems.

    Industry compliance standards

    • EN 71-3: Toy Safety—Migration of Certain Elements
    • ISO 1248: Pigments—Testing Methods for Dry Color and Commercial Products
    • Restriction of Hazardous Substances (RoHS) Directive (for electronics plastics and coatings)
    • ISO 9001 for pigment batch QC systems

    Typical usage ratio

    • Engaged at 8–15% by weight as a core intermediate in pigment precursor synthesis; adapts depending on desired chroma and compatibility with downstream functional groups.

    Downstream process integration

    • Fed directly into the condensation or alkylation step for diketone aryl pigment synthesis; reacts to form pigment core scaffold before subsequent modifications and dispersion.

    Final product types

    • Organic pigments for high-end inks (offset, flexographic)
    • Masterbatch colorants for plastics extrusion and injection molding
    • Surface-coating dispersions for consumer goods

    3. Fine Chemical Intermediate for Agrochemical Actives

    Producers of crop protection agents utilize this raw material as an aromatic diketone fragment for constructing specific insecticide and herbicide structures. Agrochemical formulators demand consistent molecular quality to ensure downstream yield, minimize byproducts, and maintain active ingredient regulatory approval. The compound’s defined purity plays a central role in stabilizing active ingredient performance under various agro-environmental formulations, allowing compliant launch of new-generation field products.

    Industry compliance standards

    • FAO/WHO Specifications for Agricultural Pesticides (JMPS criteria)
    • ISO 17025 (analytical batch release)
    • REACH and Chinese NCMPA Registration for agricultural raw chemicals
    • OECD Guidelines for Testing of Chemicals (for impurity assessment)

    Typical usage ratio

    • Applied at 1.10–1.20 molar ratio in the key condensation or cyclization route for target actives. Ratio depends on efficiency and purity of other building blocks in the synthesis chain.

    Downstream process integration

    • Employed in intermediate synthesis prior to the target agrochemical’s cyclization or functionalization; monitored by HPLC or GC during process scale-up and commercial batch validation.

    Final product types

    • Technical-active pesticides and herbicides
    • Granule, EC, and SC final crop-protection formulations
    • Seed-treatment active ingredient concentrates

    4. Material for Research and Development of Analytical Reference Standards

    Accredited reference standard producers utilize this compound as a critical starting material for the custom synthesis of analytical calibrants and impurity standards. Strict documentation and batch traceability are required to support laboratories in pharmaceutical, food, and industrial analysis. Purity and structural identity audits guarantee that each lot enables accurate, reproducible calibration of HPLC, GC, and other analytical techniques. Registrants depend on the entire supply chain being conformant to ISO and international reference material guidelines.

    Industry compliance standards

    • ISO 17034: General Requirements for Competence of Reference Material Producers
    • ISO/IEC 17025 Laboratory Testing Accreditation
    • USP and European Pharmacopoeia Specifications for Analytical Reference Materials
    • GLP (Good Laboratory Practice) batch documentation

    Typical usage ratio

    • Employed at 1.00–1.10 equivalents based on synthesis protocol restrictions for calibrant molecule construction; adjusted according to final purity requirement (≥99.5% HPLC/GC grade).

    Downstream process integration

    • Engaged in initial functionalization or fragment coupling steps; followed by purification, structural validation (NMR, MS), and certificate of analysis (COA) preparation.

    Final product types

    • Analytical standards for QC laboratories
    • Certified impurity markers for pharma batch release
    • Reference calibrants for environmental and food residue analysis
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    Certification & Compliance
    More Introduction

    2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione: A Closer Look at Manufacturing and Value

    Understanding the Core of 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione

    At our facility, every day involves commitment to reliable processes, careful selection of raw materials, and an understanding of how each molecule serves a broader function. 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione, often referenced by chemists for its stability and unique profile, stands out in both structure and performance within organic synthesis. You recognize it by its molecular architecture, a fusion of diphenylacetyl and indandione, designed to meet the particular challenges of fine chemical applications.

    I have seen first-hand how a single batch can make a difference to researchers, production chemists, and formulation experts. This compound doesn’t just fill a spot on a specification list—it becomes part of a chain, bridging upstream and downstream applications. Whether you measure its quality by HPLC or rely on tried-and-true crystallization, strict attention to purity remains our non-negotiable standard—something that typically exceeds 99% validated by multiple analytical techniques on each production run.

    From Raw Material to Finished Compound: Inside the Synthesis

    Sourcing high-grade benzene derivatives and keeping moisture-controlled environments allows the formation of 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione with minimal byproducts. For each lot, our chemists oversee all reaction steps, working out optimal temperatures and solvent systems. Decades of combined experience show that reaction yields rise above industry averages only if you tune each variable, from catalyst type to mixing speeds. Small details—slight color changes, subtle endpoint signals—often lead to better outcomes than any theoretical yield calculation. We've gotten feedback from downstream users that excess trace impurities can disrupt their formulating or introduce noise in analytical measurements, so our routes—using either Friedel-Crafts or variants—are always focused on selectivity.

    Every dried and packaged kilogram comes with the certainty that it met the same scrutiny as the first test samples. Some critical applications (such as in pharmaceutical syntheses or advanced pigment intermediates) demand more than the standard assay; they require known impurity profiles, absence of water, and demonstrated batch-to-batch consistency. We qualify our process before committing to commercial scale. That’s what defines professional manufacturing over mere bulk synthesis.

    Comparing with Other Indandione Derivatives

    Working with 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione means dealing with a product sharper in differentiation than general indandione analogs. While mono-substituted indandiones handle certain tasks, the diphenylacetyl group adds a level of aromatic stability and hydrophobicity that directly changes how it reacts in key synthesis steps. Plenty of experiments, both in-house and in partner labs, confirm this: yields in coupling reactions, resistance to photolytic breakdown, and even ease of crystallization shift as you move from methyl or simple phenyl analogs to this complex variant.

    Our chemists have solved practical issues by moving from 2-acetyl-1,3-indandione to the diphenylacetyl version. Improved reaction selectivity, cleaner isolation, and less charring during extended heating cycles have made a clear difference, particularly for those seeking reproducibility. A colleague once summarized the advantage: “You can push this molecule a bit harder without losing integrity, so scale-up gets less risky.” This kind of feedback—straight from reaction benches—has helped us align research focus for better troubleshooting and application guidance.

    Key Performance Parameters We See in Practice

    You don’t judge chemical performance purely by its label: melting point, assay, or spectral matches are necessary, but field use tells the real story. In our experience, 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione brings distinct benefits to those running multi-step syntheses. Customers working in specialty pharmaceuticals, dyestuff intermediates, and select agrochemical routes all value the durability of this compound through heating, extraction, and purification. Some have dialed in optimal processing conditions and now report higher final yields and easier post-reaction separations.

    Every manufacturing campaign here includes routine checks for thermal stability, solubility in different organic systems, and behavior in continuous versus batch reactors. Over years, we’ve tracked subtle trends: batches exposed to oxygen during the intermediate reaction can develop off-notes, so inertization became policy. Slight changes in silica content from solvents could lead to cloudiness, obliging us to vet every drum before use. Each improvement often comes from collaboration—sometimes from a call with a polymer chemist frustrated by an off-spec product, sometimes from persistence in our labs trying to solve what seemed like a trivial problem until it turned critical under pressure of scale.

    Why Purity and Traceability Matter in This Product

    Our years of manufacturing indandione derivatives have made traceability a foundation of trust. Extensive logs follow every batch from raw material receipt to finished product storage, giving our partners visible proof of origin, consistency, and handling. The biggest lesson from decades in this business: small impurities can become big problems in critical applications. For 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione, maintaining full traceability stops those headaches before they grow. Customers dealing with regulatory filings or quality audits appreciate having direct answers and historical documentation available—no guesswork, no scrambling for old records.

    Technical support teams, both in our plant and in our customers’ labs, often coordinate to set new standards based on recent quality claims or unusual analytical findings. For one batch flagged with a minor impurity above threshold, we traced root cause, recalibrated washing steps, and locked in new standards for monitoring. That single batch turned into a learning experience. Every gram since reflects those improvements.

    End Use and Application Feedback

    Users from research teams and process engineering alike describe solid performance in synthesis, particularly when conditions demand higher chemical stability. We see consistent demand from those making pharmaceutical intermediates, advanced functional materials, and pigments. Formulators value the crystalline form and clean melting point—each lot appears uniform to trained eyes, with no visible clumping or discoloration under standard packaging conditions.

    Over time, we’ve collected feedback that this product’s profile—particularly the resistance to oxidative breakdown—and ease of handling make it a preferred choice over less substituted or impure indandione compounds. In pigment manufacture, users have remarked on more consistent color development and fewer process interruptions. In multi-step fine chemical synthesis, teams report fewer chromatographic purifications and improved mass balances—a blend of practical savings and improved reproducibility.

    Our technical teams build close working relationships with these end users, sharing application notes, process troubleshooting tips, and analytical data tailored to their ongoing projects. Experiences shared from bench chemists feed directly into our next round of product refinements.

    Process Improvements and Insight from Practice

    The business of making complex organic molecules has little room for complacency. We invest in continual education, equipment upgrades, and process optimization. Regular audits, both internal and customer-driven, keep us watchful over every procedure step. Successful manufacturing means balancing synthesis cost, safety concerns, and long-term product stability. In producing 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione, each campaign becomes a vote of confidence from repeat customers—we know their expectations and meet them, batch after batch.

    Years of analysis have exposed the fallout from cutting corners: unplanned downtime, lost batches, and customer headaches. That translates into rigorous investment into analytics—NMR, HPLC, GC-MS, and elemental analysis on each intermediate and finished batch—so there’s no guesswork. When someone calls about a concern discovered during scale-up or downstream use, we don’t run for the manuals. We pull up tailored records, call up operators who ran the campaign, go back through full electronic tracks, and piece together all the ingredients that went into that drum. That’s how recurring problems get stopped early, and why changes in specification are always fully traceable to cause, not just a technicality on a data sheet.

    Safety, Handling, and Practical Lessons from Manufacturing

    Long-term chemical manufacturing builds a respect for robust workplace safety and planning. Storage of 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione follows policies proven to prevent cross-contamination or degradation. Warehouses here maintain stable temperatures and humidity, since moisture, temperature shifts, and light exposure can degrade quality and add operational costs. Our operators know every step: how to monitor for dust, how to keep oxygen-sensitive reactions inert, and how to maintain proper record-keeping for each stage of production and shipment.

    Every operator on site, from material handling to reactor control, undergoes training that includes case studies—actual incidents, not hypotheticals—so everyone owns a safety-first mindset. Mistakes, even small ones in seemingly benign handling or measurement steps, tend to snowball. Every production run applies a network of checks—raw material identity confirmation, mechanical and electrical checks, personal protective equipment, and full sign-off before shifting to packaging. That’s made the difference between safe, reliable batches and occasional emergency response drills.

    Direct Collaboration Improves Final Results

    Over the years, we’ve found that successful projects grow from two-way collaboration between manufacturer and end-user. Many breakthroughs in yield improvement, process troubleshooting, and risk mitigation surfaced during frank discussions between our chemists and the customer’s technical teams. Sometimes those talks lead to a small tweak in drying procedure or a new lot of catalyst, sometimes to a complete shift in reaction order to achieve better selectivity.

    Some of our longest-standing relationships come from project partnerships launched around this compound. Joint work sessions led to shared technical notes, shared equipment access, and even combined publication efforts. These cooperative efforts advance both sides: our team picks up new analysis methods, our partners gain ready-to-implement process improvements. It’s how real expertise grows—by keeping doors open, sharing problems before they become crises, and exchanging technical observations without holding back vital details.

    Continued Innovation in Indandione Manufacturing

    Progress doesn’t stop with a single reliable process. Investment into pilot-scale reactors, advanced in-line analytics, and new purification sequences keeps us ahead of market demand for higher purity or unique specifications. Keeping up with stricter environmental and safety standards—regulatory and customer-driven—pushes ongoing investment into greener synthetics, energy efficiency, and reduced solvent usage.

    Early adaptation to customer requests for tailored particle sizes or special solvent forms has shaped new in-house protocols. Requests for zero-residue, easily soluble forms prompted upgrades in filtration and drying lines. These adjustments have had visible results in downstream processing—improved dissolution rates, minimized filtration waste, and fewer “rough runs” reported by user facilities. The real measure comes not in claims but in repeat orders and direct testimonials from process engineers.

    R&D teams in our group are never far removed from the production lines; direct access to process data and frontline troubleshooting gives new projects a realism that avoids speculative “lab-only” innovations. Every scale-up brings its own hurdles, yet the integration between R&D and operations ensures that fresh ideas meet the realities of industrial-scale chemistry.

    Supporting Responsible Use and Sustainability

    Manufacturing 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione responsibly requires clear commitment to environmental management. Waste and byproduct processing, energy recovery loops, and solvent recycling schemes form part of everyday practice. Regulatory landscapes change fast; staying compliant and responsible requires anticipation, not just reaction. Audits from external partners and customers keep us constantly tuned to emerging safety and environmental requirements.

    We focus on minimizing VOC emissions, reducing hazardous waste, and capturing solvent for reuse wherever possible. Each process change, whether it improves yield or reduces environmental burden, is shared up and down the supply chain, so both our teams and our partners benefit. Long-term, our business revolves around building more sustainable practices as well as technical achievements.

    Final Thoughts from the Shop Floor

    Producing a compound like 2-(Diphenylacetyl)-2,3-Dihydro-1,3-Indandione means more than hitting specs or meeting a quarterly demand signal. This product reflects countless hours of process optimization, troubleshooting, and practical experience. Every improvement, every success story or challenge met, becomes part of the legacy driving the next advancement.

    Each conversation with technical partners adds to our understanding of how this compound shapes research, industry, and innovation. Bringing it from raw material to reliable, application-driven tool puts experienced people, well-equipped facilities, and continuous learning at the forefront. In this work, knowledge isn’t fixed—it grows, it adapts, and it’s shared—one batch, one lesson, and one innovation at a time.