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2-Pentyl-3-Methyl-2-Cyclopenten-1-One

    • Product Name 2-Pentyl-3-Methyl-2-Cyclopenten-1-One
    • Alias Massoia lactone
    • Einecs 416-070-1
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    512052

    Cas Number 2563-34-4
    Molecular Formula C11H18O
    Molecular Weight 166.26 g/mol
    Iupac Name 2-pentyl-3-methyl-2-cyclopenten-1-one
    Appearance Yellow to brown liquid
    Odor Nutty, roasted, popcorn-like
    Boiling Point 249 °C
    Density 0.937 g/cm³ at 20 °C
    Refractive Index 1.495 (20 °C)
    Flash Point 102 °C
    Solubility In Water Insoluble
    Logp 3.45

    As an accredited 2-Pentyl-3-Methyl-2-Cyclopenten-1-One factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle containing 25 grams of 2-Pentyl-3-Methyl-2-Cyclopenten-1-One, securely sealed with tamper-evident cap and labeled.
    Shipping 2-Pentyl-3-Methyl-2-Cyclopenten-1-One should be shipped in tightly sealed containers, protected from light and moisture. Maintain at cool, stable temperatures and comply with all local, national, and international regulations. Clearly label packages with hazard information, and ensure appropriate documentation accompanies the shipment. Handle with care to prevent leaks or spills.
    Storage **2-Pentyl-3-Methyl-2-Cyclopenten-1-One** should be stored in a cool, dry, and well-ventilated area away from heat sources, direct sunlight, and incompatible substances such as strong oxidizers. Keep the container tightly closed when not in use, and store in a chemical-resistant, labeled container. Use proper secondary containment to prevent spills. Follow all relevant safety and regulatory guidelines for chemical storage.
    Application of 2-Pentyl-3-Methyl-2-Cyclopenten-1-One

    Applications of 2-Pentyl-3-Methyl-2-Cyclopenten-1-One in Industrial Manufacturing

    2-Pentyl-3-Methyl-2-Cyclopenten-1-One is a high-purity specialty ketone with applications focused in flavor formulation, fragrance compounding, fine chemical synthesis, and analytical reference standards manufacturing. Our consistent quality, strict in-house QC protocols, and traceable lot management support a range of critical downstream industries. Below are the major industrial application scenarios based on direct input from current long-term manufacturing clients.

    1. Food Flavors Manufacturing

    Large food flavoring companies utilize 2-Pentyl-3-Methyl-2-Cyclopenten-1-One as a key aroma component in high-impact nut, coffee, roasted meat, and tropical fruit flavor profiles. Batch chemists dose this compound during the flavor compounding stage, using flash blending under nitrogen or stainless mixing to minimize loss. The ingredient passes strict food additive controls, and every lot ships with allergen and solvent residue documentation for compliance assessment. Product developers fine-tune dosage to match the sensory threshold and matrix requirements of finished foods like bakery fillings, beverages, confectionery, and snack coatings.

    Industry compliance standards

    • FEMA GRAS 3255
    • US FDA 21 CFR 172.515 (Flavoring Substances)
    • European Union Regulation (EC) No 1334/2008
    • GB 2760-2014 National Food Safety Standard (China)

    Typical usage ratio

    • Generally 1–50 ppm in finished flavors
    • Adjusted based on application: beverage flavors (1–5 ppm), baked goods (10–30 ppm), processed meats (15–40 ppm)
    • Matrix, heat stability, and flavor release impact adjustment

    Downstream process integration

    • Direct addition to concentrated flavor blends in mixing tanks
    • Dosed at the compounding and pre-homogenization stage
    • QC verifies via GC-MS during pre-shipment checks
    • Flavor bases shipped as liquid, paste, or encapsulated dry blends

    Final product types

    • Ready-to-drink beverages (coffee, fruit mixes)
    • Bakery fillings and cream centers
    • Savory snack seasonings
    • Confectionery flavoring syrups

    2. Fine Fragrance and Perfumery Compounding

    Premium perfumery brands source this material as a key base note accent in woody, tobacco, and gourmand perfume formulations. Compounders weigh and dose it while building core accords, utilizing high-shear mixers to assure uniform distribution at low percentages. Fragrance houses require full compliance with the latest IFRA amendments and global cosmetic directives, including TDS, IFRA certificates, and allergen disclosure. The molecular structure grants strong tenacity and modulating effects, especially in complex fine fragrances, luxury candles, and scented oils.

    Industry compliance standards

    • IFRA Standards (latest amendment)
    • EU Cosmetics Regulation (EC) No 1223/2009
    • California Prop 65 disclosure where required
    • Cosmetic Ingredient Review (CIR) assessments

    Typical usage ratio

    • Trace levels 0.01–0.3% by weight in perfume concentrate
    • Fragrance candles, 0.005–0.2% depending on wax matrix
    • Adjustment depends on desired base note intensity and formula persistence

    Downstream process integration

    • Dosed during the perfume oil concentrate pre-blend stage
    • Used in custom blending for bulk and artisanal perfumers
    • Stability evaluated in ethanol, wax, and carrier oils
    • Identity and purity confirmed by GC before component release

    Final product types

    • Fine fragrances (EDP, EDT)
    • Luxury scented candles
    • Reed diffusers and fragrance oils
    • Perfumed body products

    3. Tobacco Flavor Additive Preparation

    Industrial tobacco processors use this molecule for its niche contribution to tobacco blends, primarily to enhance roasted, nutty, and slightly caramel notes in cigarettes and pipe tobacco. The dosing process integrates the material into top flavor applications, which are sprayed or atomized onto cut tobacco during controlled moisture addition. All batches must meet regulatory standards for tobacco additive use, with full traceability, declared origin, and non-GMO documentation for regulatory authorities and internal audits.

    Industry compliance standards

    • EU Directive 2014/40/EU Annex II (tobacco additives)
    • US FDA Tobacco Control Act compliance (21 CFR 1140, 1143)
    • China GB 25508-2010 (Tobacco Flavorings)
    • ISO 10939:2018 (Tobacco and tobacco products—Procedures)

    Typical usage ratio

    • 0.5–10 ppm based on tobacco blend target
    • Specialty aromatics blends may use up to 20 ppm for pipe/cigar applications
    • Fine adjustments to accommodate regional flavor profile preferences

    Downstream process integration

    • Dosed into top flavoring mixtures prior to spray application
    • Applies during cut tobacco conditioning stage
    • In-process analysis tracks component stabilities during storage
    • Atomizing, tumbling, or direct spray methods

    Final product types

    • Cigarettes
    • Pipe and cigar tobacco blends
    • Reconstituted tobacco sheets
    • Herbal smoking alternatives

    4. Analytical and Reference Standard Supply

    Accredited reference laboratories and analytical service providers require high-purity material as calibration or spike standards for GC, GC-MS, and HPLC analysis. Each lot is supplied with COA, isotopic purity, and detailed chromatographic data. Typical users validate food and fragrance matrices, perform trace screening in customs quality control, or conduct research in academic and institutional laboratories. Standards must conform to applicable ISO accreditation, traceability, and storage protocols under controlled conditions.

    Industry compliance standards

    • ISO 17034:2016 (General requirements for reference material producers)
    • ISO/IEC 17025:2017 (Testing and calibration laboratory competence)
    • FDA guidance on reference standards handling
    • Accredited documentation traceability

    Typical usage ratio

    • Preparation of stock standards at 1–100 mg/L
    • Typical working solutions range from 0.01 to 1 mg/L depending on application sensitivity
    • Dilution protocols observed to minimize contamination

    Downstream process integration

    • Direct dissolution in analytical-grade solvents
    • Aliquoted for standard curve and spike addition validation
    • Lot-specific data sets prepared for each shipment
    • Stored under -20°C with tamper-evident packaging

    Final product types

    • Certified reference standards (CRMs)
    • GC/GC-MS calibration solutions
    • Proficiency testing kits
    • Analytical quality control spike solutions

    5. Fine Chemical Synthesis Intermediates

    Custom synthesis groups and pharmaceutical fine chemical manufacturers select this cyclopentenone as a valuable intermediate in the construction of advanced molecular frameworks. Its reactive carbonyl and substituted pentyl chain participate in aldol, Michael, or Diels-Alder reactions, supporting the assembly of aroma compounds, complex lactones, or specialized active pharmaceutical intermediates. Consistent isomeric purity minimizes downstream yield loss, and each batch releases only after LC/MS and NMR validation.

    Industry compliance standards

    • GMP (ICH Q7) for pharmaceutical intermediates
    • ISO 9001:2015 Quality Management Systems
    • REACH registration (EU Regulation 1907/2006)
    • Regional Hazardous Chemicals Control (for intermediate handling)

    Typical usage ratio

    • As a core or fragmentary building block at 0.2–5 molar equivalents
    • Adjusted based on the molar ratio in the target transformation
    • Controls based on catalyst, solvent, and downstream step requirements

    Downstream process integration

    • Charged into jacketed reactor vessels during multistep syntheses
    • Employed in pre-coupling, cyclization, or condensation procedures
    • Monitored by TLC, GC-MS during in-process QC
    • Downstream purification by chromatography or crystallization

    Final product types

    • Pharmaceutical intermediates
    • Advanced aroma and flavor chemicals
    • Industrial specialty lactones
    • Research reagents and ligands
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    Competitive 2-Pentyl-3-Methyl-2-Cyclopenten-1-One prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Introducing 2-Pentyl-3-Methyl-2-Cyclopenten-1-One: A Decade of Quality from the Manufacturer’s Perspective

    Real-World Chemistry, Real Results

    Every chemist in manufacturing hits a point where certain molecules just stand out—not solely because of pure chemistry, but for their impact where application, reliability, and consistency matter more than abstract purity. In our years of manufacturing 2-Pentyl-3-Methyl-2-Cyclopenten-1-One, we have watched it become a mainstay for professionals who value not only a functional ketone but also a signature material—a backbone compound trusted in flavor, fragrance, and specialty formulation labs worldwide.

    A Closer Look at the Molecule

    This compound, also known in labs as “Pralivor” or by its CAS identifier 2563-34-4, holds a distinct position due to its molecular structure. That 5-membered cyclopentenone ring paired with a 3-methyl and a 2-pentyl side chain sets up a robust framework for stability and unique chemical reactivity. We produce it in grades to meet both food additive benchmarks and the more stringent demands of technical synthesis. Our batches routinely fall within a GC purity range of 98.5% and above, with consistent organoleptic profiles—punchy, warm, and with a nuanced nutty note that won’t fade across shelf life.

    Insights from the Manufacturing Floor

    Years in manufacturing have taught us that nothing good comes from shortcuts. We optimize oxidation and cyclization stages, ensuring minimal byproduct formation and batch reproducibility. This hands-on experience translates into product you can count on—no unexpected off-notes, no last-minute surprises in downstream formulations. That nitty-gritty process engineering matters more than almost any paperwork or datasheet prediction. The result is a cyclopentenone that doesn’t throw surprises into your flavor or scent profile, saving weeks of reformulation with each consistent batch.

    Application Value: Flavor and Fragrance, Elevated

    Maple, hazelnut, pecan, cocoa—users in the flavor industry recognize the soft, roasted, and creamy undertones generated by 2-Pentyl-3-Methyl-2-Cyclopenten-1-One. Popular in confections, bakery flavors, and coffee upgrades, a dash can elevate ordinary notes into recognizable signatures. Fragrance houses prize this molecule for its enduring power in nut accords and complex gourmands, often making it a hidden hero in luxury perfumery. There’s little substitute for its tenacity and depth—many have tried to mimic with less effective off-the-shelf cyclopentenones or lower chain analogs. The authentic warmth and sweet persistence of our material keeps creative professionals coming back, batch after batch.

    What Sets Us Apart from the Rest

    We don’t churn out generic ketones. Rather, each reactor run comes from an integrated approach, with raw material traceability and closed-loop control over every parameter—temperature, catalyst loading, and extraction conditions. Our analytics routinely push beyond minimum issuing GC and organoleptic checks. Color consistency, viscosity measurements, and oxidation residue content all receive attention in our laboratories, informed by customer feedback and decades of application support. Our history shows that cheap shortcuts damage reputation faster than any temporary bump in margin, so we take material stewardship seriously. The result is a product you can dose precisely, confident it won’t overwhelm or fade out in your flavor or scent application.

    Pitfalls with Common Alternatives

    Cheaper cyclopentenones, especially those cut with branched alkanes or byproducts, throw up big problems downstream. Some bring off-flavors or evaporate too fast, failing to anchor top notes. Others oxidize into aldehydes, breaking apart a formulation’s delicate balance in ways that show up only weeks after bottling. Several years ago, a batch of imported product (not ours) made headlines when perfumers had to recall large runs due to instability—unpleasant, and easily avoided with tighter manufacturing control. These lessons have shaped a company culture focused as much on what’s not in the bottle as what’s present. Every refinement in our process seeks to remove residual solvents, minor isomers, and trace contaminants rather than push price through the floor, allowing flavorists and perfumers to blend confidently regardless of scale.

    Regulatory and Safety Considerations from the Factory Perspective

    Over the years, regulatory landscapes around food ingredients, natural flavor labeling, and allergen disclosure have shifted—sometimes in unpredictable ways. Our work doesn’t stop at compliance; it starts by tracking the origin of every precursor and reagent, ensuring that full traceability sits behind every kilogram shipped. Auditable logs, compliance with current FEMA/GRAS opinion, and ongoing review of evolving global standards (US and EU especially) mean that end users aren’t left sorting out documentation long after a project launch. Customers familiar with ad hoc or unreliable suppliers quickly see the value in our transparent, hands-on approach: no product leaves the plant without batch-level paperwork, QA sign-off, and shipment traceability, tailored to the realities of finished food and fragrance applications.

    Committed to the Professional Formulator’s Challenge

    In formulation work, subtle differences in starting materials can lead to big changes in finished product. We’ve heard from flavor chemists who switched to other cyclopentenones for cost, only to chase variation for months in production samples—some batches worked, others didn’t, and the sensory profile shifted with every order. Consistent, predictable quality isn’t a slogan from our team, it’s a necessity built on feedback from labs, R&D benches, and pilot plants around the world. This real-world feedback forms the backbone of our manufacturing process, motivating us to control every detail from raw material intake to finished product analytics.

    Feedback Loops with Real Users

    Open lines between production and users mean practical solutions to real hurdles. Over the years, flavorists have asked us about shelf life extension without preservatives, perfumers have come looking for tighter color controls, and QA departments have asked for COAs tracking more than just basic assays. We’ve adapted our purification methods accordingly: improved inert atmosphere packaging, tighter chromatographic separation of isomers, and more thorough retention sample archiving. These investments help solve concrete problems before they cost time and rework in end products. As manufacturers, our ears stay wide open because industry partners face new challenges with every regulation change, flavor trend, or market turn.

    No Substitute for Manufacturing Know-How

    Decades of production experience reveal truths that get lost in commodity trading. A balanced cyclopentenone blend relies on precise temperature steps; one slip, and byproduct content spikes, leading to harsh or flat notes. Years ago, we retooled columns and separators based on direct customer feedback, chasing not just analytical purity but a softer, rounder flavor impact. This hands-on attention can’t be found in brokered or “white-label” product. Our shop floor teams blend practical chemistry know-how with rigorous process control, ensuring product integrity doesn’t change when faced with seasonal raw material variation or new regulatory scrutiny.

    Comparing Alternatives: Not All 2-Pentyl-3-Methyl-2-Cyclopenten-1-One is Alike

    On paper, most cyclopentenones claim similarities. In reality, only through hands-on experience can differences in byproduct, isomer ratios, and aroma impact be recognized. Many off-shore or non-integrated players emphasize basic GC purity numbers but fall short when it comes to application performance. Subtle differences become obvious in the final usage—flavor fatigue, fading, muddy undertones, or excess volatility—problems that won’t disappear with just extra dosage. Our product line aims to eliminate these issues through investment in both process chemistry and skilled technical support. Every lot that leaves our plant reflects the steady hand of manufacturing rather than a quick trade or bulk dilution.

    Scale and Consistency: Lessons from Bulk Operations

    Our facility supports both R&D-scale sampling and full commercial-scale lots, so learning from scale-up and real process challenges has become second nature. Producing small lots for a craft flavor developer turns up different needs than supplying multinational fragrance houses. Both require pinpoint batch performance, and our focus on repeatable process means a 10 kg drum matches a 1,000 kg lot not only in number, but in every performance aspect. Many producers struggle to match batch specifics at every scale, causing headaches down the line as products shift from prototype to full market rollout. Our commitment to quality closes that gap—every drum reflects the hard lessons from both early-stage development and truly large-volume fulfillment.

    Handling, Storage, and Practical Realities

    2-Pentyl-3-Methyl-2-Cyclopenten-1-One demands proper handling both in the plant and at the customer’s site. Exposure to light and oxygen accelerates off-note formation, so we use UV-resistant, nitrogen-flushed drums with secondary seals. Field data from users has highlighted the importance of these measures: shelf life extends, flavor quality holds, and fewer samples end up wasted. Our in-house storage mirrors the conditions we recommend in the field. We constantly monitor real-time shipment conditions, allowing us to ship product at peak stability, not just at its freshest but at its most reliable from your standpoint as a formulator or production lead.

    Application Stories: What Formulators See in Practice

    We routinely interact with flavorists and perfumers working at every scale. One beverage developer shared that the unique center note of praline was lost in their reformulated recipe until our cyclopentenone reversed the drift. In candy and bakery, customers rely on the consistency in our product to ensure every batch meets the flavor spec—no customer complaints, no last-minute batch tweaking. Fragrance customers have come to rely on our color and aroma stability; one flagship perfume line uses our molecule for its “warmth” and signature finish, reporting less annual batch-to-batch correction work. These aren’t just stories—they form the blueprint that drives our ongoing improvements, because real-world application outpaces any theoretical quality claim.

    Why Manufacturing Control Remains Essential

    Partners in both flavor and fragrance encounter their share of supply chain disruptions, spec deviation, and flavor drift. Throughout these industry swings, direct manufacturing has enabled us to guarantee uninterrupted supply, even during feedstock or logistics volatility. Our backup sourcing, multi-stage QA, and hands-on team provide a security net beyond what brokers or traders can offer. This investment means the critical note in your flavor system, or the base to your signature scent, stays consistent year in and year out, ready for the demands of commercial product launches.

    Continuous Investment: Driving Better Material and Support

    Continuous improvement doesn’t just happen—it comes from close listening, open feedback, and a willingness to invest in both people and process. Over the last decade, we’ve boosted chromatographic selection, streamlined finishing steps, and digitized tracking to spot even the smallest deviations. Partnering direct with flavor and fragrance customers, we frequently adapt batch processing times or tweak purification conditions in response to new project demands. These tweaks allow users greater control over formulations, making our cyclopentenone not just an ingredient but a tool to solve daily production issues.

    Looking Forward: Responding to Industry Challenges

    As market pressure increases for “clean label” flavors and transparent sourcing, our approach to manufacture becomes even more critical. We stand ready for evolving regulatory scrutiny, ingredient tracing, and end-user transparency. Our team supports formulation development, troubleshooting, and adaptation as the industry pivots to meet new consumer and regulatory demands. Direct partnership lets us help customers face the next challenge, be it an unexpected regulatory change, market shift, or flavor innovation trend.

    Supporting Your Innovation, One Batch at a Time

    At the end of every shift, our success is measured not by volumes sold but by the reliability and results we deliver to our partners. Every producer and development chemist working with 2-Pentyl-3-Methyl-2-Cyclopenten-1-One faces tough choices; ingredient selection impacts shelf life, customer appeal, and margin. Our job is to take care of the material side, reliably and transparently, allowing creative professionals to focus on innovation and brand building. In the world of specialty chemicals and signature flavors, we have found that real, hands-on manufacturing experience—and the quality controls it enables—are irreplaceable. We look forward to continuing to set benchmarks for consistency, transparency, and support in the years to come.