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Paroxypropione

    • Product Name Paroxypropione
    • Alias Paraxipropiona
    • Einecs 202-027-5
    • 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

    635802

    IUPAC_name 1-phenylpropan-1-one
    Other_names Propiophenone
    Molecular_formula C9H10O
    Molar_mass 134.18 g/mol
    Appearance Colorless liquid
    Melting_point -24 °C
    Boiling_point 219 °C
    Density 1.003 g/cm3
    Solubility_in_water Slightly soluble
    CAS_number 93-55-0

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

    Packing & Storage
    Packing Paroxypropione is packaged in a 100g amber glass bottle, sealed with a screw cap and labeled with safety and chemical information.
    Shipping Paroxypropione should be shipped in tightly sealed containers made of compatible materials, away from light, heat, and moisture. It should be labeled appropriately as a chemical substance and handled by trained personnel. Transport in accordance with relevant local, national, and international regulations to ensure safety and compliance.
    Storage Paroxypropione should be stored in a tightly sealed container, away from light and moisture, in a cool, dry, and well-ventilated area. It must be kept away from sources of ignition, strong oxidizing agents, and incompatible substances. Proper labeling and secure storage to prevent unauthorized access are essential. Use only in a chemical fume hood and follow standard safety protocols.
    Application of Paroxypropione

    Applications of Paroxypropione in Industrial Manufacturing

    Paroxypropione is a specialty chemical intermediate essential in several industrial sectors. As an experienced manufacturer, our production grades meet the demanding requirements of downstream formulators, particularly where tight regulatory controls and consistent quality are critical to your performance and compliance.

    1. Pharmaceutical Synthesis: Corticosteroid Intermediates

    Corticosteroid drug manufacturers rely on paroxypropione as a primary intermediate in the synthesis of compounds such as hydrocortisone and prednisone. The inclusion of this material occurs during early stage side-chain introduction via Friedel-Crafts acylation and ketonic modification routes. Maintaining purity and traceability is essential due to its direct influence on the pharmacological activity and impurity profile of the final API. Every batch must match specification requirements to ensure consistent downstream yields and meet stringent impurity thresholds specified by international health authorities.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice Guidelines for Active Pharmaceutical Ingredients
    • USP–NF Monographs related to corresponding corticosteroids and intermediates
    • European Pharmacopoeia (Ph. Eur.) quality parameters
    • FDA 21 CFR Part 211 cGMP for Finished Pharmaceuticals (where integration occurs in-house)

    Typical usage ratio

    • 1.1–1.3 molar equivalents relative to primary reactant, adjusted for process scale and targeted impurity removal

    Downstream process integration

    • Enters the acylation reaction vessel as a primary reagent after initial aromatic substrate preparation
    • Used as a building block for introduction of para-acyl groups in multi-step corticosteroid synthesis
    • Subjected to purification steps before onward transformation into API structure

    Final product types

    • Hydrocortisone and derivative APIs
    • Prednisone/intermediary active substances
    • Corticosteroid topical formulations
    • Oral corticosteroid tablet bases

    2. Agrochemical Active Ingredient Manufacturing

    Agrochemical companies incorporate paroxypropione as a unique acyl donor within the synthesis of several aryl-propionate herbicides and growth regulators. Its molecular structure allows selective side-chain modification, critical for tuning bioactivity and stability in the end-use environments. The compound is introduced during the derivatization of phenoxy compounds, requiring strict monitoring for residuals that could migrate into agricultural formulations. Product batches undergo routine compliance checks to align with region-specific pesticide residue and trace impurity standards.

    Industry compliance standards

    • FAO/WHO specification for pesticide technical material
    • REACH (EC No 1907/2006) Registration for raw materials entering EU agricultural markets
    • ISO 9001:2015 Quality Management System for process traceability
    • GLP (Good Laboratory Practice) for testing feedstocks

    Typical usage ratio

    • 0.8–1.0 molar equivalents relative to phenoxy or aryl base, controlled by batch-to-batch activity analysis

    Downstream process integration

    • Dosed into the main reaction vessel during the acylation stage of herbicide synthesis
    • Utilized as a functionalizing agent for ring-modification of active ingredients
    • Subject to distillation and purification before formulation into technical concentrate

    Final product types

    • Phenoxypropionate herbicides (e.g., MCPA derivatives)
    • Plant growth regulators
    • Premix agricultural chemical formulations
    • Emulsifiable concentrates for field application

    3. Flavors and Fragrances Intermediate

    Producers of synthetic flavors and fragrances use paroxypropione as a precursor for aromatic ketone derivatives essential in floral and woody note compounds. The compound’s controlled reactivity enables custom synthesis of volatile components under low pressure and moderate temperature, supporting consistent olfactory performance and regulatory compliance for end consumer safety. Careful dosing and high purity are essential to minimize off-odor byproducts and ensure acceptability under regional flavor and fragrance standards.

    Industry compliance standards

    • IFRA (International Fragrance Association) Code of Practice
    • ECHA REACH registration for chemical safety
    • US FDA 21 CFR Part 172 for permitted flavoring substances
    • Food Chemicals Codex (FCC) purity requirements when material is destined for ingestible formulations

    Typical usage ratio

    • 1.0–1.2 molar equivalents to core aromatic base, dependent on reaction efficiency and desired ester/ketone intensity

    Downstream process integration

    • Dosed as a fragrance building block during early synthetic stage
    • Utilized in alkylation and ketone/esterification reactions for creating signature compounds
    • Material passes through fractional distillation and quality testing before proceeding to blending

    Final product types

    • Fine fragrance compounds (woody/floral notes)
    • Flavor additives for beverages and confectionery (where permitted)
    • Perfume base materials
    • Consumer air care and personal product additives

    4. Industrial Resin and Polymer Additive Manufacturing

    Polymer manufacturers employ paroxypropione in the synthesis of specialty aromatic resins and heat-resistant polymers, especially where aryl subunits impart enhanced mechanical properties or UV resistance. The compound provides key functional groups during the condensation process, promoting high-molecular-weight product formation. Quality assurance protocols closely monitor integration to ensure only trace levels of unreacted material persist, meeting downstream requirements for low volatile organic compound emissions and mechanical stability.

    Industry compliance standards

    • RoHS Directive (2011/65/EU) for electrical and electronic polymers
    • ISO 14001:2015 Environmental Management System for resin production
    • UL 94 flammability testing for finished plastic goods
    • ASTM D256/D638 for mechanical property validation in polymer blends

    Typical usage ratio

    • 3–6% by weight of total monomer feed, adjusted depending on required resin performance and final application

    Downstream process integration

    • Added to the monomer mixture prior to chain initiation or copolymerization
    • Contributes functional aromatic ketone side-chains during polymer backbone extension
    • Incorporated before or during solvent removal to limit residuals

    Final product types

    • High-performance engineering resins
    • Coatings and varnishes with improved UV stability
    • Adhesive base polymers
    • Electrical encapsulation materials
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    Competitive Paroxypropione prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Introducing Paroxypropione: Our Experience with a Trusted Intermediate

    Consistent Quality Born from Hands-On Manufacturing

    Paroxypropione has been produced in our facility for years, and through hands-on work we’ve learned what makes a dependable intermediate. Our production line handles a steady output of Paroxypropione, with technical-grade and high-purity options based on customer feedback and tailored requirements. Our usual specification for the high-purity variant sits above 99%, and every batch undergoes direct monitoring from start to finish. This keeps contaminants like residual acetophenone and peroxides well below typical industry limits, a practice we committed to after seeing quality problems with off-spec raw materials early in our history.

    What sets our Paroxypropione apart comes down to these details. Years ago, our synthesis relied on older peroxide oxidizing systems with limited control over byproducts—after upgrading to newer continuous reactors and rigorous process analytics, our output became more repeatable and wastes dropped. This cut down on batch rejections not only in our facility but also for downstream clients who used our product for onward synthesis.

    We learned early that relying on spot testing can leave gaps, so our in-process controls now use direct Gas Chromatography and HPLC verification. Each drum or intermediate tote gets checked for purity, appearance, and trace volatility. Most clients opt for the high-purity grade, but the technical-grade material still meets all requirements for use in scaled organic syntheses such as for api intermediates and certain flavors and fragrance precursors.

    Paroxypropione: How We Make It and Why It’s Chosen

    Paroxypropione carries a molecular formula of C9H10O2 and serves as both a starting material and an intermediate for a broad range of synthetic applications. Our team recognized refiners and pharmaceuticals had rising demands for strictly controlled aromatic ketones more than a decade ago when we first expanded our reactor hall. The structure, featuring a phenyl group with a p-hydroxy substitution and a sidechain carbonyl, allows for efficient further derivatization.

    The path from raw chemical feedstock to high-purity Paroxypropione takes careful steps. Historical methods often used benzoic acid as a starting material, but we switched to phenolic oxidation routes that provide less color formation and higher throughput. At scale, tiny details in the feed and reagent ratios make a visible difference in the product’s color and post-synthesis stability. We saw that without proper stabilization and storage, peroxides and off-odors built up, leading to shipment rejections.

    Experience taught us that even small variances in peroxide dosing can trigger exotherms or poor yields, so our line operators use real-time feedback from in-line sensors to adjust. This gives us a batch-to-batch consistency that few competitors offer. Fresh batches come out clear and faintly yellow—the visual clarity speaks directly to the absence of polymeric byproducts or unreacted starting material.

    Specifications and Batch Consistency: What We Guarantee

    Specifications matter in manufacturing because a missed impurity or uneven moisture leads to downstream failures, not just at our site, but for any customer blending or reacting with our product. We set our typical high-purity guarantee at >99.0% by weight, with moisture consistently below 0.1%. GC content limits keep major organic impurities under 0.5%. With Paroxypropione, we dose antioxidants right at shipment to guarantee longer shelf life, and our QA team keeps records of each lot for at least ten years.

    Our bulk products leave the plant packed in steel drums lined to prevent reaction or discoloration, and all handling follows strict temperature control. We’ve seen even minor thermal spikes in transit cause unexpected polymerization, so we now use temperature trackers in long-distance containers—a step added after a customer had issues several seasons ago.

    Unlike generic grades from non-integrated factories, our Paroxypropione offers less residual moisture and a higher lot pass rate. We see direct benefits in client synthesis runs, with less fouling of catalyst beds and cleaner conversion when used in medicinal intermediate preparation.

    Applications: Why Industry Trusts Our Paroxypropione

    Most of our Paroxypropione heads straight into pharmaceutical plants, where it serves as an intermediate for corticosteroid synthesis. The hydroxyl group in p-position offers a handle for esterification and etherification, making it a favorite for building blocks like tolnaftate analogues. We’ve had specialty fragrance blenders approach us for this product when they required a source free from stabilizer residues, as traces have a big impact on end-product scent.

    Academic researchers come to us for high-purity lots to support novel heterocycle research, and bulk corporations rely on the consistency we bring to supply chains. We take pride in long-term customers who reference our quality in scientific literature. The confidence comes from years of reliable deliveries: shipments arrive on schedule, with all paperwork accompanied by real batch chromatograms.

    In the past, we’ve also supported partners in agrochemical development, where Paroxypropione acts as a key ring structure for herbicide research. The product’s stability and compatibility with various solvents give experimental researchers flexibility.

    What Makes Our Paroxypropione Distinct from Other Aromatic Ketones

    At a glance, Paroxypropione can be confused for similar aromatic ketones, such as acetophenone or p-methoxypropiophenone. Through years of manufacturing, we came to recognize the subtle, practical differences that count. Paroxypropione’s p-hydroxy substitution enables a completely different set of downstream chemical modifications. Unlike acetophenone, it offers enhanced reactivity at the para position, which is exactly what complex pharmaceutical synthesis requires. In fragrance applications, the hydroxy group prevents over-oxidation and off-odors seen with some methoxy derivatives.

    We have watched customers try alternative intermediates based on similar core structures, but find themselves returning to Paroxypropione for the blend of reactivity and safety in downstream handling. The lower toxicity profile—recorded in several published toxicological evaluations—makes for easier compliance in certain countries, streamlining regulatory processes compared to more aggressive ketones or aldehydes.

    Customers mention the handling differences in person. Acetophenone, for example, may be a cheaper precursor, but its volatility and odor persistence often trigger additional requirements in occupational safety. Our Paroxypropione, with its higher molecular weight and lower vapor pressure, keeps exposures lower during blending and transfer. That has a real impact on worker comfort and compliance spend.

    Direct Feedback and Continuous Improvement

    We encourage honest feedback. Our production management runs regular reviews with key stakeholders, especially large-volume pharma clients, to identify issues and set new standards. This began years ago when a client called out orange color formation after week-long storage in their tanks. We traced the problem to excess iron content from an old heat exchanger and swapped out the metal for coated vessels. The result: no more color change and a higher pass rate for their products.

    Another change came from a customer’s request for longer shelf life; this pushed us to trial new antioxidant formulas. Not all stabilizers work, as some leave behind residue or interfere with late-stage synthesis. After months of collaboration with end users and careful microanalysis, we settled on a package that kept the Paroxypropione stable for at least twelve months in sealed drums—even under warmer storage.

    Along the way, we have refined filtration and drying protocols based on recurring feedback about trace particulate issues. By using high-flow microfiltration and rigorous air-drying, we nearly eliminated the risk of filter clogging for our downstream customers.

    Challenges in Paroxypropione Production and Solutions

    Several years ago, raw material volatility threw our planning into disarray. The supply of p-hydroxyacetophenone varied by season, which really hit our batch scheduling. We responded by securing multiple long-term contracts and increasing in-house purification capacity for the intermediates. Buffer storage and better logistics now prevent production gaps, so our customers’ supply chains stay predictable, even in volatile markets.

    Process safety always sits at the top of our list. The oxidative steps in Paroxypropione synthesis can trigger uncontrolled releases in less experienced hands. After two close calls in the early days, we instituted automated shutdowns and redundant cooling—experience showed us human oversight is important, but direct process safeguards are simply a must. Our safety record now stands as a competitive advantage, showing regulators and customers alike that we do not take shortcuts.

    Waste management used to be a persistent headache. Byproducts like lower aliphatic acids and spent oxidizers carried a disposal cost and a regulatory burden. Through modular distillation systems and improved aqueous waste separation, we capture over 95% of reusable solvents and reduce hazardous disposal by a third compared to our earlier practices. This approach draws on years of incremental improvements, prompted directly by staff and customer collaboration.

    Traceability, Reporting, and Ethical Sourcing

    Every customer asks about traceability. We assign a unique batch code to every lot, tied to production records, analytical results, and all regulatory documentation. Our system allows for instant recall of any lot data within minutes. This rigorous approach stemmed from a tough audit years ago that highlighted weak spots; we invested in new ERP infrastructure and haven’t looked back since.

    Ethical sourcing forms the base of our procurement process. No feedstocks are accepted from unvetted suppliers. Following several instances of impurity carryover reported from other regions, we enforce periodic audits of upstream sources and don’t hesitate to reject lots based on even slight spec drift. We routinely publish our supply chain links to clients who require documentation for international registrations. This transparency builds trust, and long-term clients cite it as a deciding factor in sticking with our Paroxypropione program.

    Supporting Research and Building Customer Confidence

    Academic and industrial clients bring new insights that push us to improve. Over the past decade, we have provided raw and analytical samples for peer-reviewed research, including use cases for new synthetic routes in complex molecule manufacture. One customer trialed our Paroxypropione for generation of rare benzofurans and supplied us with results: higher yield and cleaner isolation compared to competitor samples.

    These hands-on validation cycles matter. Many of our clients operate under regulated frameworks, such as GMP or ISO guidelines, and every input has to meet documentary proof and performance tests. We keep technical liaisons available for joint troubleshooting. Our teams use customer data—everything from spectral analysis to reaction metrics—to refine future batches. We have seen more return business from providing this direct support than expensive advertising could ever bring.

    As industry standards change, so do expectations for safety and health information. We provide direct access to batch safety documents and are ready to collaborate on risk assessments and custom analytics. Our experience shows that open, honest communication with clients yields the best outcomes for everyone involved, especially in industries where a single impurity can trigger months-long investigations.

    Market Dynamics and Our Long-Term Outlook on Paroxypropione

    The global demand for aromatic ketones and their derivatives continues to rise, led mainly by growth in specialty pharmaceutical ingredients. Market data shows steady increases in corticosteroid and antifungal precursor demand. Our ability to adapt production levels and maintain just-in-time inventory means we don’t rely on warehousing excess, which lets us respond quickly when customers launch new projects or ramp up existing lines.

    Intellectual property pressures and regulatory tightening have changed the competitive landscape over the last 5–10 years. Paroxypropione sits in a position where both high capacity and transparent compliance are needed for market access, especially into North America and EU countries. We have kept our procedures aligned with the latest guidance to support regulated market entry, including detailed impurity profiling, residue analysis, and regular cGMP self-audits, even for industrial-grade lots.

    End-users depend on our reliable shipment and supply over extended project timelines. Our management team matches batch production to demand forecasts every quarter, meeting shifts in the market without overextending the plant. This creates lasting value for our partners rather than opportunistic supply swings.

    Why Direct Sourcing from Us Matters

    Over the years, we noticed that some buyers turned to traders or resellers to source Paroxypropione and received unpredictably mixed quality. Some reported delayed shipments, inconsistent documentation, or even contaminated lots. Our direct-supply model lets clients trace every drum back to facility processes, people, and materials we handle ourselves. If a problem ever surfaces, our production leads can access records immediately and push out corrective actions in hours, not weeks.

    The difference between buying from a manufacturer like us and outsiders rests in the predictability of outcome. We adjust shipments based on customer schedules and exchange best practices directly between our chemists and yours. If a new downstream process has atypical compatibility requirements, we can trial process tweaks in our pilot lab to see if a custom spec will work—something traders rarely offer.

    Continuous Learning and Industry Leadership

    We keep close watch on trends in synthetic organic chemistry and regulatory science. Industry dialogues taught us new approaches to process greener oxidizers, reduce waste, and implement safer handling—refinements that flow back into our Paroxypropione output. Open forums and trade association inputs allow us to learn from peers, advancing together as new market requirements emerge.

    Our technical teams attend global conferences and bring back fresh strategies for increasing efficiency. One case led us to reformulate a key stabilizer to further cut down on potential end-use reactivity—a customer-inspired improvement now baked into all lots. Detailed monitoring of environmental requirements pushed us to eliminate some halogenated byproducts entirely. Experience with product stewardship programs in major global markets keeps pushing us to higher standards of transparency and customer engagement.

    Future growth in Paroxypropione, in our view, depends on this blend of thorough, transparent manufacturing and a feedback-driven approach to customer partnerships. Having seen how small changes at the plant level scale up to major differences in global supply chains, we commit to open communication and a hands-on response to every technical challenge in the markets our Paroxypropione serves.