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4-Trimethylsiloxy-3-Penten-2-One

    • Product Name 4-Trimethylsiloxy-3-Penten-2-One
    • Alias 4-Trimethylsiloxy-3-penten-2-one
    • Einecs 629-861-1
    • 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
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    Specifications

    HS Code

    483163

    Name 4-Trimethylsiloxy-3-Penten-2-One
    Molecular Formula C8H16O2Si
    Molecular Weight 172.30 g/mol
    Cas Number 2755-23-3
    Appearance Colorless liquid
    Boiling Point 97-99°C at 17 mmHg
    Density 0.891 g/mL at 25°C
    Refractive Index 1.432-1.434
    Flash Point 30°C
    Purity Typically >97%
    Storage Conditions Store in a cool, dry place; keep container tightly closed
    Solubility Insoluble in water; soluble in organic solvents

    As an accredited 4-Trimethylsiloxy-3-Penten-2-One factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The 4-Trimethylsiloxy-3-penten-2-one is packaged in a 25g amber glass bottle with a tamper-evident cap and clear labeling.
    Shipping 4-Trimethylsiloxy-3-Penten-2-One should be shipped in tightly sealed containers, away from heat, moisture, and incompatible substances. It must be labeled according to chemical safety regulations and transported using standard hazardous material procedures. Protective packaging is required to prevent leaks or spills during transit. Ensure compliance with all relevant local and international shipping laws.
    Storage 4-Trimethylsiloxy-3-penten-2-one should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from sources of ignition, moisture, and incompatible materials such as strong oxidizing agents. Keep away from direct sunlight and store at temperatures recommended by the manufacturer, preferably under inert gas, to minimize degradation and prevent hydrolysis or vapor hazards.
    Application of 4-Trimethylsiloxy-3-Penten-2-One

    Applications of 4-Trimethylsiloxy-3-Penten-2-One in Industrial Manufacturing

    As the direct manufacturer of 4-Trimethylsiloxy-3-Penten-2-One, we serve a range of specialized industrial clients who use this compound in advanced synthesis and materials modification. The following sections detail key application fields based on actual usage among downstream manufacturers in chemical, pharmaceutical, agrochemical, and advanced materials sectors.

    1. Pharmaceutical Intermediates: API Synthesis in Oncology and CNS Drug Development

    Major pharmaceutical companies and custom manufacturing organizations incorporate this siloxy-pentenone as a protected enone building block during multi-step synthesis of active pharmaceutical ingredients, particularly for small-molecule oncology and central nervous system therapeutics. Controlled silyl-enol ether reactivity supports stereo- and regioselective transformations in late-stage intermediates. Production teams prioritize traceability and impurity control at every reaction sequence, including full batch record documentation during scale-up.

    Industry compliance standards

    • ICH Q7: Good Manufacturing Practice (GMP) for Active Pharmaceutical Ingredients
    • USP <797> and EU GMP Annex 1 (Aseptic Processing Guidelines for final APIs)
    • FDA CFR 21 Part 211 (finished pharmaceuticals)
    • Applicable Drug Master File (DMF) submission standards

    Typical usage ratio

    • Typically 0.5–2.5 molar equivalents based on reactive substrate, adjusted for desired protection level and downstream deprotection ease

    Downstream process integration

    • Used after core ring system assembly during intermediate protection steps
    • Silylation reaction typically under anhydrous conditions; subsequent transformations involve selective desilylation
    • Integrated within solid-liquid extraction and crystallization lines to maintain chemical purity
    • QC monitoring by HPLC, GC-MS for trace siloxane byproducts at the protected intermediate and deprotected API stages

    Final product types

    • Small-molecule oncology APIs (e.g., kinase inhibitors)
    • CNS drug molecule intermediates
    • Chiral drug scaffolds requiring temporary ketone protection
    • Ready-to-formulate API solutions for hospital compounding and research use

    2. Agrochemical Synthesis: Crop Protection Compound Manufacturing

    In agrochemical research and production plants, synthesis chemists rely on this reagent for the selective silylation and temporary protection of enolate functionalities during key steps in multi-functional pesticide and herbicide molecule assembly. Optimized protection/deprotection protocols ensure maximal yield and reduce side reactions in ester, ether, and alkene-containing crop protection actives.

    Industry compliance standards

    • ISO 9001 certified production traceability and batch release
    • FAO/WHO technical material specifications (where applicable to intermediates)
    • Compliance with EU REACH and US EPA chemical inventory reporting for precursor handling
    • Internal EHS audit standards for solvent, waste, and airborne emissions

    Typical usage ratio

    • 0.3–1.2 equivalents per ketone or aldehyde substrate, tuned by process route and specific crop protection molecule target

    Downstream process integration

    • Enters process following initial condensation or alkylation reactions
    • Batch and continuous-flow reaction vessels use inert gas blanketing to control silylation atmosphere
    • In-line NMR and GC used to monitor complete protection and side product minimization
    • Desilylation and final purification prior to formulation plant transfer

    Final product types

    • Precursor intermediates for triazole and strobilurin fungicides
    • Building blocks for selective herbicides
    • Raw materials for pyrethroid and neonicotinoid pesticide groups
    • Technical grade active ingredients for downstream blending and packaging

    3. Advanced Polymer Modifier in Silicone Resin Synthesis

    Leading silicone resin producers and specialty polymer formulators integrate this trimethylsiloxy compound during functional silicone-based network building. Used as a co-monomer or chain modifier, it fine-tunes hydrophobicity, cross-linking capacity, and surface activity for high-performance resin systems found in coatings, adhesives, and electronics encapsulants. Formulation engineers pay close attention to reaction kinetics and compatibility with other silanes or organo-modified siloxanes.

    Industry compliance standards

    • ISO 14001 (environmental management for chemical polymer manufacturing)
    • RoHS (EU Restriction of Hazardous Substances for electronics-compatible polymers)
    • UL 94 Flammability Standard (for electrical insulation materials)
    • REACH registration and Safety Data Sheet (SDS) compliance for imported compounds

    Typical usage ratio

    • 0.5–3.0% by weight in final siloxane or silane monomer mixture; adjusted by desired cross-linking and mechanical property targets

    Downstream process integration

    • Introduced during copolymerization or as post-polymerization modifier under controlled heat and catalyst conditions
    • Mixing and blending occur in stainless steel reactors with automated dosing for batch reproducibility
    • Post-polymerization stripping removes volatile fractions
    • Formulators test thermal and mechanical properties before bulk packing

    Final product types

    • Silicone resins for high-temperature coatings
    • UV-cured silicone adhesives
    • Electronics encapsulation materials
    • Advanced hydrophobic treatments for glass and metal substrates

    4. Fine Fragrance and Aroma Intermediate Synthesis

    Specialty fragrance houses and aroma chemical manufacturers employ the compound for the synthesis of ketone- and enone-derived aromatic molecules where sensitive functional groups require temporary protection during multi-step routes. The siloxy group facilitates selective transformation and later removal under mild conditions, allowing preservation of delicate aromatic notes and high purity final bases for perfumery and food flavoring.

    Industry compliance standards

    • IFRA Standards (International Fragrance Association)
    • EU Regulation (EC) No 1223/2009 (cosmetics safety for applied raw materials)
    • FEMA GRAS (Generally Recognized As Safe, for flavoring ingredients)
    • ISO 22716 Cosmetic GMP during blending and packaging

    Typical usage ratio

    • 0.2–0.8 equivalents per targeted aldehyde/ketone functional group; selection based on sensitivity of downstream olfactory compounds

    Downstream process integration

    • Added directly after initial carbonyl-related key step in specialty aldehyde/aroma molecule routes
    • Silylation under controlled temperature to prevent aroma loss
    • Final deprotection occurs post-coupling, monitored by GC-Olfactometry
    • Isolated intermediates sent for final blending and bottling

    Final product types

    • Perfume ketone bases
    • Aroma enhancers for beverages
    • Masking agents for personal care
    • Fragrance oil concentrates
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    Certification & Compliance
    More Introduction

    Introducing 4-Trimethylsiloxy-3-Penten-2-One: Practical Benefits From a Chemical Manufacturer

    We manufacture 4-Trimethylsiloxy-3-penten-2-one in our own plant, and over the years, we have watched it become an indispensable tool for both R&D labs and large-scale synthesis shops. Our development teams have spent a great deal of time with this molecule, so we’re not talking about it from behind a desk or a sales feed: we’re speaking from the bench and the drum-filling station. The model we offer, under the code 028Q-TSPO, maintains a high purity ratio with very tight GC profiles and minimal byproduct signature, something we never take for granted with such a reactive enone.

    How We Handle Purity and Consistency

    Chemists and process engineers talk often about purity, but unless you’re holding the analysis report in your hand and comparing it against several runs, purity remains just a number on a spec sheet. We push each batch of 4-Trimethylsiloxy-3-penten-2-one through three-stage distillation, followed by silica column clean-up. This isn’t done to chase numbers, but rather to head off headaches: unpoliced batches quickly build up with volatile siloxy byproducts or polymeric tars, which create yield problems in actual synthetic use. In the real world, downstream steps like Michael additions and aldol reactions can turn into sticky messes if even minor impurities creep in. We run QC using both GC-MS and 1H NMR. Consistency means the percent active content doesn’t fluctuate from drum to drum; it holds true through seasons, shifts, and varying batch sizes.

    Specifications That Relate Directly to Use

    Specifications on 4-Trimethylsiloxy-3-penten-2-one are best understood from hands-on experience. The most useful grades, in our view, reach above 98% main content by GC, with water and total silanol impurities controlled to less than 0.4%. Trace metal contamination comes under strict watch; siloxy compounds turn unpredictable in the presence of metals. We ship this product as a colorless-to-pale yellow liquid, and if you ever see it run darker than that in the drum, that’s an early clue the batch wasn’t handled right. Our internal spec accepts only minimal variance because any deviation shows up later in coupling yields or polymer stability in customer hands. Viscosity stays at a manageable level for most feed systems, usually less than 4 centipoise at 25°C. This means pumps never clog and automated feeders don’t need excessive recalibration.

    Hands-On Experience and Real Life Usage

    In our labs and in those of our biggest customers, 4-Trimethylsiloxy-3-penten-2-one often acts as a masked enone—a soft electrophile, giving access to β-functionalized intermediates that other compounds struggle to reach. Chemists prize the trimethylsiloxy group for its protective qualities: it shields the reactive center just enough to prevent runaway side reactions, yet leaves the enone system open for gentle activation. Many of the solvents we’ve tried in-house easily dissolve the compound, including ether, THF, DCM, and toluene. It mixes smoothly, evaporates cleanly, and shows no foaming or surfactant-like behavior. In scale-up, packaging choices also matter. We started with glass-lined drums, but experience taught us that steel drums with proprietary linings prevent micro-leakage better over months—critical for shippers dealing with customs or ocean freight.

    Comparisons to Similar Molecules in Our Portfolio

    Over decades, we've trialed dozens of similar silyl enol ethers and unsaturated ketones, but 4-Trimethylsiloxy-3-penten-2-one consistently stands out for its reactivity and handling profile. TMS-enolates with a 4-position substituent have their place, but for many route designs, they lag behind in both selectivity and the ability to deliver clean downstream reactions. If you’ve worked with bench-top silyl enol ethers like trimethylsilyl vinyl ketone, one of the first surprises with 4-Trimethylsiloxy-3-penten-2-one is its balance between reactivity and shelf-stability. Some analogs, particularly trialkylsilyl derivatives with larger R groups, decompose into siloxane oligomers far more rapidly under normal storage. Customers who switched to our material from other bulk sources report longer storage windows, which eases the burden on raw material logistics.

    Practical Issues Our Facilities Address

    Almost every manufacturer claims robust handling procedures, yet in practice, not all production lines provide the nitrogen-purged, moisture-free environment that 4-Trimethylsiloxy-3-penten-2-one truly requires. We designed our system layout so no batch ever spends more than a few minutes exposed to open air before capping and nitrogen blanketing. The product pulls in atmospheric water aggressively, which creates downstream hydrolysis issues if left unchecked. We maintain container headspace with high-purity dry nitrogen, and our line teams use portable dewpoint meters to verify each shipment. Downstream users in the pharmaceutical and specialty chemical markets express clear relief at seeing these steps in our COA audits. Waste from minor hydrolysis events in competitor batches costs customers money and time; experience tells us careful line design is not an extra, but a requirement for those wanting effective material each delivery.

    The Chemistry Behind Its Value

    Chemists gravitate toward this compound for a reason. The silyl enol ether function opens up strategic C–C bond formations, giving access to branched and linear products without harsh bases or highly nucleophilic reagents. We’ve seen customers in both agrochemical and electronics sectors use our product for cross-coupling steps and selective addition reactions, banking on the controlled reactivity available from a clean, well-purified stream. In our reaction optimization trials, the product often replaces older-generation analogs, boosting selectivity away from tangled mixtures. Downstream, its byproducts largely strip away by acidic workup or mild hydrolysis, which means less headache for those working at kilo- or ton-scale removal steps. Some clients tell us that switching to our batches of this molecule cut final step purification times in half because minor unidentified tars all but vanished.

    Why Users Choose to Stay With Our Product

    Switching raw material supply for a core process always carries risk, but over the years, customers keep returning to our specific 4-Trimethylsiloxy-3-penten-2-one formula because it doesn’t bring hidden costs. Quality audits rarely catch a batch outside spec, and storage issues—such as viscosity creep, phase separation, or peroxide formation—simply do not come up when using our formula. We monitor each facility’s local climate conditions, as excess humidity shortens open-drum shelf life. In summer peaks, we ramp up container sealing checks and advise storage below 25°C for any shipment requiring fifteen days or more in transit. These measures have reduced customer claims for spoilage and contamination by more than 90% compared to industry averages reflected in trade-data returns.

    Understanding Downstream Waste and Safe Handling

    As has become common in the chemical sector, our customers push for responsible waste management and safe operation. 4-Trimethylsiloxy-3-penten-2-one calls for careful disposal and recycling of even trace residues. Inside our plant, technicians direct run-off and wash-down residue into closed-loop solvent recovery, so we ship almost nothing to landfill. Consistent cleaning protocols in our factory mean we don’t transfer build-up from drum walls or flexible connectors to new material. For our large-scale partners, we offer secure drum return systems and advice on safe on-site hydrolysis for destroyed batches, letting you demonstrate your sustainability record to audit teams and regulatory bodies. Our involvement doesn’t stop at shipment—our technical team works with operators to troubleshoot handling problems that hit productivity or safety margins.

    What Sets This Product Apart—From a Manufacturer’s Standpoint

    Traditional suppliers like to point at spec sheets and third-party lab certificates, but only companies that control their own synthesis lines see the full picture of what can go right—and wrong—with 4-Trimethylsiloxy-3-penten-2-one. Every few months, we review trace impurity profiles from diverse customers, tracking possible sidechain isomers, siloxane oligomers, or low-level peroxide contributors. Our on-site analytical chemists treat these trace-by-trace, reporting back process tweaks that remove outliers batch by batch. We also use real-time online monitoring during the final distillation, comparing every reflux cycle’s refractive index and pressure drop with validated year-to-date data. This running record means outlier batches never reach the filling station.

    From a practical standpoint, the product’s differences from other silyl enol ethers emerge most clearly in long-term storage performance and chemical compatibility. Some competitive compounds demand extreme cold or freeze-drying in shipment, which limits their value for manufacturers lacking sub-zero infrastructure. Our formula holds up over expected temperature swings in road, rail, or short-term warehouse layovers. Polymer chemists on the customer side have told us this stability allows flexible production schedules—even at batch scales into the multi-ton range—without surprise bottle-necks triggered by product decomposition. It also avoids trace byproduct buildup that can poison expensive downstream catalysts. That’s an obstacle faced with lesser analogs, but rarely our formula.

    Product Applications—Case Studies from Industry Partners

    Each sector finds its own unique use. For those working in medicinal chemistry, the enone system within 4-Trimethylsiloxy-3-penten-2-one enables access to diverse intermediates, especially those aiming at modular, convergent syntheses. We’ve worked directly alongside production chemists optimizing HWE and Michael addition steps where saving a purification column or shaving hours off reaction time makes all the difference. Biocide and crop chemical companies use our batches for selective new alkene introductions, while electronic materials developers find value in batch-to-batch stability, since device yields depend on clean precursor supply. Not every user asks for high-scale shipments; boutique API labs and start-ups often start with a few kilograms, reporting later on how few headaches appear when transferring our material to pilot-scale or moving into GMP lines.

    Sustainability As Seen In Production

    Over the last decade, industry demand for greener production has shifted how we design and upgrade our runs. For 4-Trimethylsiloxy-3-penten-2-one, we’ve invested in solvent recovery and closed nitrogen cycles to cut both emissions and raw material losses. Our plant now recycles the majority of spent nitrogen and washes, and our distillation lines recover more than 85% of the applied processing solvent. Wastewater monitoring now integrates at-source sensors for organosilicon compounds, allowing immediate process adjustments. No one in our shop regards these as mere compliance: every step lowers cost, improves safety, and allows for more responsible product declarations to customers who track their own environmental records. Auditors recognize these details when walking our lines—they rarely see equivalent commitment at outsourced, bulk-blended plants.

    Supporting Innovation—Feedback Goes Both Ways

    Accepting feedback from customers using our 4-Trimethylsiloxy-3-penten-2-one is part of our culture. This isn’t a “tell us your thoughts” box on a website. We encourage synthesis chemists and process engineers to contact our technical staff with their application data and concerns about reactivity, compatibility, or storage. In 2023, user feedback on slight coloring in summer deliveries led us to modify drum lining materials and adjust ship-out temperature ranges. Going forward, we’re pursuing smarter packaging options and tighter analytic review schedules. These moves don’t just keep specs tight—they drive cost out of customer operations and cut loss rates for sensitive reactions. Regular roundtable reviews with our client’s technical teams push us to see trends before they hit the market, and we act quickly when new downstream applications open up. For those scaling up new products or transferring academic procedures to industrial scales, our product reliability limits the need for painful re-optimization steps. As a direct manufacturer, we share the pressure to get things right—the lab, pilot, and plant levels all depend on real-world stability and predictable chemistry.

    Conclusions Drawn from the Manufacturing Floor

    All of the above comes not from marketing literature, but from real use: our engineers, operators, and chemists walk the line from first reactor fill to drum load-out. We’ve witnessed firsthand what 4-Trimethylsiloxy-3-penten-2-one offers when produced correctly, and what happens when production cuts corners. Common problems with similar molecules—ranging from subpar yields and loss of reactivity to handling and storage troubles—rarely surface in our experience, given careful control at every stage. The real test always comes from outside the plant, in the feedback and results we hear from customers, both those searching for a new standard and those with years of rigorous data in hand. The more rigorously the product gets questioned, the better its performance stands out. When you bring together reliable chemistry, responsive feedback, consistent analytical backup, and sustainable production, the result is more than a number on a certificate—it’s chemistry that works where and how it’s needed, every time.