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N-Methylpiperidine

    • Product Name N-Methylpiperidine
    • Alias NMP
    • Einecs 203-751-4
    • 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

    938612

    ChemicalName N-Methylpiperidine
    CASNumber 626-67-5
    MolecularFormula C6H13N
    MolecularWeight 99.17 g/mol
    IUPACName 1-Methylpiperidine
    Appearance Colorless liquid
    BoilingPoint 106-108 °C
    MeltingPoint -38 °C
    Density 0.816 g/cm3 at 20 °C
    SolubilityInWater Miscible
    FlashPoint 10 °C (closed cup)
    VaporPressure 50 mmHg at 25 °C
    Odor Amine-like
    RefractiveIndex 1.421 at 20 °C
    PubChemCID 12329

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

    Packing & Storage
    Packing 500 mL amber glass bottle with secure screw cap, labeled "N-Methylpiperidine," includes hazard warnings, chemical details, and batch number.
    Shipping N-Methylpiperidine should be shipped in tightly sealed, chemical-resistant containers, stored in a cool, well-ventilated area. Ensure compliance with all applicable regulations, as it is a flammable liquid (UN 3286). Appropriate hazard labeling, cushioning to prevent leaks or breakage, and documentation should accompany shipments for safe transport and handling.
    Storage N-Methylpiperidine should be stored in a tightly closed container in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and incompatible substances such as strong acids and oxidizers. Keep it separate from food and drink. Store at room temperature, and ensure proper labeling. Handle under a fume hood, and follow all standard chemical hygiene practices.
    Application of N-Methylpiperidine

    Applications of N-Methylpiperidine in Industrial Manufacturing

    N-Methylpiperidine serves as a critical intermediate and catalyst across several advanced manufacturing sectors. The material’s performance and regulatory attributes make it widely adopted in fine chemicals, agrochemicals, pharmaceuticals, and polymer-related industries.

    1. Active Pharmaceutical Ingredient Synthesis

    Fine chemical manufacturers use N-Methylpiperidine for producing various pharmaceutical actives, especially as a base during alkylation, acylation, and condensation reactions in multi-step organic syntheses. The compound offers predictable reaction profiles, crucial for maintaining process yields and minimizing impurity formation. Its application requires rigorous compliance at each production stage, from procurement through API isolation.

    Industry compliance standards

    • Current Good Manufacturing Practice (cGMP, ICH Q7)
    • EU EudraLex Volume 4 Part II GMP for APIs
    • U.S. FDA 21 CFR Part 211 (Finished Pharmaceuticals)
    • Japanese Pharmacopoeia (JP) and European Pharmacopoeia (EP) guidelines for residual solvents

    Typical usage ratio

    • Applied at 1–5 mol% relative to substrate for catalytic roles; can increase up to stoichiometric levels (1:1) for specific condensation or protection reactions. Determined by process yield and impurity control requirements.

    Downstream process integration

    • Added to reactor vessels at the basic step of active ingredient synthesis. Involved during coupling, protection, or deprotection reactions. Removed or neutralized in downstream purification, typically via aqueous work-up or chromatographic separation.

    Final product types

    • Antiviral agents (e.g., HIV integrase inhibitors)
    • Anticancer small molecules
    • CNS-active drug intermediates
    • Chiral pharmaceutical building blocks

    2. Synthesis of Agrochemical Intermediates

    Producers of herbicides, insecticides, and fungicides rely on N-Methylpiperidine as a reaction base and synthetic auxiliary in the preparation of complex heterocyclic compounds. Its use ensures target conversion rates and selectivity when forming active moieties that are later functionalized into market-ready agrochemical agents. Strict monitoring during use and removal is necessary to meet downstream formulation standards.

    Industry compliance standards

    • FAO/WHO Technical Specifications (AGP:CP/9)
    • US EPA Pesticide Registration Regulations (40 CFR Part 158)
    • ISO 9001 and ISO 14001 for environmental management
    • Chinese GB2763–2021 (Maximum Residue Limits for Pesticides in Food)

    Typical usage ratio

    • Generally utilized at 0.5:1 to 2:1 molar ratio relative to substrate. The ratio is adjusted based on substrate reactivity and the necessity to suppress side-product formation.

    Downstream process integration

    • Mixed into batch reactors at the ring-closing or functional group modification stage. May act as a pH regulator or scavenger during acid chloride conversion steps. Removed from crude products by aqueous extraction or distillation.

    Final product types

    • Pyridine-based insecticides
    • Active herbicidal intermediates
    • Seed treatment agents
    • Plant growth regulators

    3. Catalyst for Polyurethane Systems

    Major polyurethane foam and elastomer producers select N-Methylpiperidine as a key tertiary amine catalyst to drive the polyaddition reaction between isocyanates and polyols. It supports precise catalytic activity for both flexible and rigid foam manufacturing, controlling reaction speed and foam cell structure. Manufacturers benefit from its predictable catalytic efficiency and tight compositional control in large-scale batch and continuous systems.

    Industry compliance standards

    • REACH Regulation (EC) No 1907/2006
    • ISO 9001:2015 Quality Management Systems
    • OSHA 29 CFR 1910.1200 for chemical hazard communication
    • Certifications for automotive and construction foams (e.g., automotive interior VDA standards)

    Typical usage ratio

    • Range: 0.05 to 0.3 parts by weight per 100 parts polyol. Exact dosage depends on desired foam density, rise time, and other catalyst combinations.

    Downstream process integration

    • Injected directly into polyol blend prior to mixing with isocyanate. Dosage calibrated via metering pumps or precision dosing systems. Incorporated in both batch and continuous foam production.

    Final product types

    • Flexible polyurethane block foam for furniture and mattresses
    • Poured rigid insulation panels
    • Automotive seating components
    • Integral skin foams for dashboards and armrests

    4. Advanced Organic Synthesis for Flavors & Fragrances

    Specialty chemicals firms employ N-Methylpiperidine as a non-nucleophilic base and organocatalyst for synthesizing key aroma intermediates, such as those utilized in aldehyde, ketone, or lactone structural transformations. Its selectivity assists reaction efficiency and purity for high-value flavor ingredients, meeting established purity and quality benchmarks for end-use approvals.

    Industry compliance standards

    • IFRA Code of Practice (International Fragrance Association)
    • Food Chemicals Codex (FCC)
    • US FDA 21 CFR Part 172 (Food Additives Permitted for Direct Addition to Food for Human Consumption)
    • FEMA GRAS (Generally Recognized as Safe) notifications

    Typical usage ratio

    • Most aroma intermediate syntheses utilize 0.25–1.5 molar equivalents. Ratio adjusted for process yield and specific flavor precursor synthesis.

    Downstream process integration

    • Introduced during key carbonyl or esterification reaction steps with aromatic or aliphatic substrates. Systematically removed during downstream distillation and washing to comply with final product purity standards.

    Final product types

    • Citrus and green note flavor bases
    • Lactone precursors for tropical and creamy aromas
    • Functionalized aroma aldehydes and ketones
    • Food-grade fragrance additives for beverages and confectionery

    5. Electronics-Grade Fine Chemical Manufacturing

    Producers of advanced electronics chemicals, such as photoresist monomers and semiconducting intermediates, choose N-Methylpiperidine for its controlled reactivity and ultra-low trace metal profile. Its inclusion allows precision functional group protection, deprotection, and activation in process steps requiring stringent purity and batch consistency that meet microelectronic and optoelectronic substrate standards.

    Industry compliance standards

    • SEMI C93 (Specifications for Photoresist and Ancillaries)
    • IPC-4101 for base materials in printed electronics
    • REACH SVHC requirements for electronic sector purity
    • ISO 14001 Environmental Management for electronic chemicals

    Typical usage ratio

    • Applied at 0.1–1.0 equivalents, depending on the protection or activation stage. Adjustment is based on substrate loading and targeted product purity.

    Downstream process integration

    • Fed to glass-lined or stainless reactors during functional group manipulation, such as N-protection or selective alkylation of heteroaromatics. Extracted in subsequent purification by multi-step distillation or solvent exchange.

    Final product types

    • Photoresist resin intermediates
    • OLED and LCD organic materials
    • Fine etching chemicals for wafer processing
    • Microelectronic encapsulation monomers
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    Certification & Compliance
    More Introduction

    N-Methylpiperidine: Real-World Insight From the Manufacturing Floor

    Everyday Experiences at the Reactor

    Manufacturing N-Methylpiperidine gives us a rare up-close look at a chemical with a personality all its own. At our facility, the work starts early with a simple promise: keep our processes clean and efficient so each liter meets the demanding standards that lab chemists, pharmaceutical engineers, and advanced material researchers expect. The routine never feels routine when you’re handling something as reactive and essential as this compound.

    Those who run batch reactions with amines will recognize the importance of selecting the right grade. We don’t see N-Methylpiperidine as just another cyclic tertiary amine—it’s the backbone for specific syntheses that need both speed and selectivity. It slips neatly into substitution and condensation reactions without introducing unnecessary side-chains or ghost peaks in your chromatograms. With a boiling point at about 106°C, it’s easy to recover through fractional distillation, and at the bench scale, its volatility is less aggressive than lower-boiling tertiary amines like triethylamine. This translates to less product loss during transfer steps and fewer headaches from fugitive emissions.

    Understanding Specifications and the Real Impact on Daily Work

    We pay close attention to the details, right from raw materials to the final distillation. Every drum shows a GC purity above 99%, water content typically below 0.2%, and residual basic amine impurities kept to a bare minimum. These numbers aren’t there to impress auditors; they make a real difference in yield and reproducibility. In our experience, a batch that drifts outside tight specification can clog up a synthesis or slow down catalyst turnover. Teams downstream in the pharma pipeline have no patience for inconsistencies, and frankly, neither do we. We keep color clear to pale yellow and block up those off-odors—each flaw we can smell in our facility often hints at something that will foul up an HPLC trace or complicate a scale-up.

    N-Methylpiperidine stands apart from related amines by its steric profile. Unlike N-methylmorpholine or triethylamine, it’s easier to work with in the context of enolate alkylation and as a non-nucleophilic base for subtle protection schemes. In the lab, one misstep in base selection almost always shows up downstream as a lost batch or convoluted product mixture. Engineers and chemists still make trade-offs, but experience with our product over thousands of runs shows how its size and reactivity steer those decisions.

    What Makes a Good Batch—and Why It Matters

    There are days in our plant when you can walk down the line and know by the scent whether yesterday’s column run went well. That’s not folklore—it comes from years of watching batches turn out just a fraction off and paying the price in rework and downtime. Strict control of reaction times, pressure, and starting material quality all show up in the final amine. Try cutting corners here and the byproduct list gets longer; downstream teams start cursing as soon as they spot yellow tints or broadening peaks.

    Pharmaceutical manufacturers demand ultrapure solvent and amine intermediates. Their syntheses hang on low-residue N-Methylpiperidine, since even a slight impurity can gum up reaction pathways or provoke regulatory reviews. On a scale of tens to hundreds of kilos, an off-batch could send days of labor down the drain. The feedback we get from custom synthesis teams always circles back to purity, odor, and low moisture—or lack thereof. We share their priorities and know firsthand how difficult it is to scrub a downstream reactor once basic amine impurities have diffused across a line. Clean batches make for less time on maintenance and more time on process innovation.

    Comparisons to Other Amines

    Anyone who’s scaled up a Grignard or a selective alkylation can tell the difference between handling N-Methylpiperidine and the likes of N-ethylpiperidine or morpholine. Morpholine claims wider use in solvent roles because of its higher polarity, but side reactions pop up more often when you’re after sharp selectivity. In our plant, we see N-Methylpiperidine outperform N-methylmorpholine for fine-tuned pharmaceutical syntheses, especially where non-nucleophilic conditions matter. By contrast, triethylamine, while cheaper, falls short on steric shielding for hindered-base applications and tends to evaporate rapidly, releasing noticeable odors across production floors.

    We get frequent questions about why anyone would pay more for N-Methylpiperidine instead of bulkier tertiary amines. The answer is visible in the yield sheets: our customers consistently push their conversions higher, and post-reaction cleanup needs less effort. The difference may look minimal in a brochure, but when line time costs thousands per hour, engineers notice every reduction in fouling and side product.

    Uses Across Industries—From the Viewpoint of a Producer

    Customers choose our amine for more than just convenience; it responds better under process stress than most alternatives. Anyone making high-value intermediates feels the pressure not just to deliver, but to fit within stricter regulatory lines. N-Methylpiperidine serves as a foundation for quaternary ammonium salt formation, paint and coating catalysts, and fine chemicals—places where stability, trace impurity load, and consistent water content play direct roles.

    In our own experience, the most demanding users come from pharmaceuticals and custom synthesis. They rely on it as a base for alkaloid transformations, peptide protection strategies, and even high-stakes agchem actives. A single hiccup—moisture higher than spec or detectable colored impurities—can lead to product recalls, lost regulatory batches, or whole rework cycles. For coatings and performance materials, even minor base residue can influence pigment dispersal or cross-linking behavior. Get it wrong and paint consistency shifts batch to batch.

    How We Ensure Consistency and Value

    On our floor, process improvement means having your boots dirty—literally and figuratively. You learn a lot by climbing the columns and bleeding off heads, by pulling direct samples off the reflux stream instead of waiting for chart recorders. That hands-on attitude shapes our daily routines. We insist on using vacuum transfer with nitrogen blanketing for drum filling and keep the transfer lines pristinely dry. Even a few microliters of water in the system and the entire column run can swing off target. This attention to detail comes from decades of hearing customer feedback and living through every batch that needed to be reworked.

    Our team scrutinizes each lot down to the smallest contaminant. Instead of relying solely on spec sheets, we periodically run side-by-side comparisons—fresh product versus control standards—by NMR and GC. Our operators don’t just tick off purity marks on a list; they track physical properties in the course of their work. Subtle changes in color, viscosity, or even bottle weights often tell us more about process drift than end-of-line paperwork. Our on-site lab can catch off-odors and boiling range drifts within hours, keeping the warehouse clean and the shipping team from wasting time on unnecessary sorting.

    It’s not just about making a high-quality amine. We’ve invested in recycling solvent lines, integrating energy-efficient distillation towers, and regular safety audits right down to personal exposure testing. Many manufacturers talk about compliance, but for us, the outcome is fewer lost-time accidents and more predictable scale-up performance. From large drums to lab packs, we fill only after confirming that every parameter falls into the tight window our largest pharmaceutical and agrochemical partners demand.

    Ongoing Evolution: Process Knowledge Put to Use

    We’ve learned that perfecting N-Methylpiperidine comes from a willingness to adapt rather than blindly repeat what worked yesterday. Variability in starting methylating agents or inconsistent piperidine feedstock can throw off yield and raise the impurity load. We keep long-running logs of reaction exotherms, gas evolution, and even ambient temperature swings in the plant. Some consider this old-school; we call it the foundation for catching and resolving process issues before they hit the customer.

    Some years, new regulations on residual solvents or workplace exposure limits prompt us to revisit our recovery and containment methods. Instead of shortcutting the solution, we built double-sealed storage and added continuous monitoring for fugitive vapor leaks. During one particularly hot summer, solvent losses spiked. Our shift teams caught the trend before it reached the loading docks, adjusted condenser temperatures, and dialed in our controls so the losses returned to normal. Sharing this operational insight with customers keeps communication lines open, and often, their audit teams take our notes straight back to their own planning tables.

    A chemical rarely stands alone; the way it is made, refined, and moved tells you everything about its practical value. Just swapping out a source of methylating agent changed our product’s residual sulfur levels last year, forcing us to overhaul compatible packing materials and trace analysis protocols. Problems like this aren’t abstract—they cost man-hours, delay shipments, and eat into everyone’s margins. We keep records of these lessons, so next time, our batches start with better control and our customers see smoother runs.

    Safety, Storage, and Worker Health: Lessons from Experience

    Safe handling starts at the plant, long before a drum lands in your warehouse. N-Methylpiperidine carries that classic amine odor, sharp enough to wake up a seasoned technician. We focus on sealed transfers, routine air-quality monitoring, and worker education. Engineers and operators train to spot vapor leaks, use full-face PPE when handling open packages, and maintain emergency ventilation for large transfers.

    A few years back, one of our operators noticed a rise in warehouse amine odors and traced it to a faulty drum seal. Regular checks and honest reporting averted a larger spill and protected our team’s health. That firsthand vigilance may not show up on a spec sheet, but guarantees less downtime and less lost material for end users, too. Our warehouse is insulated and climate-controlled for a reason: too much heat activates pressure in the drums, risking leaks—something global shippers never appreciate but shop-floor veterans never overlook.

    We invest in employee wellness programs and provide real-time exposure feedback—over-the-top for some, but the effect is clear. Our lost-time incident rate has dropped, and workers actually stick with us long enough to become true chemical experts. That expertise flows right into consistent product quality and reliability for end users.

    Listening to Our Customers: How Real-World Feedback Shapes Progress

    We don’t claim to know everything from our side of the pipe. Customers send in crystallization residues, report odd NMR peaks, and sometimes ask for profiles that push the edge of commercial synthesis. Each one gives us more information about how our N-Methylpiperidine actually performs in the real world, not just in QC paperwork. Feedback about residue sticking to glassware or changing solvent effects at higher concentrations led us to tweak dehydration steps and drum lining materials for better transit stability.

    Some partners shared strategies to simplify GMP documentation if they could rely on traceless, well-characterized batches. Joint trials between their synthetic teams and ours have steered us toward tighter fraction cuts and more data points per lot. The learning goes both ways—engineers downstream are the first to feel the burn from a misspecification, and we take pride in seeing their process times shorten after a batch runs as predicted.

    Users tackling new catalyst systems or alternative energy routes urged us to run limited batches with altered water content and amine ratios for research-scale lots. We listen and learn, using our scaled-down plant lines to capture process data for advanced users. Not every idea results in a new standard, but exploring options together has cut the risk of major process failure and earned us long-term partnerships built on shared improvement.

    Market and Future Trends Seen From the Producer’s Bench

    Economic volatility, supply chain pressure, and tightened pharmaceutical regulations dominate our world. We track raw material markets, regularly validate alternative suppliers, and maintain cross-trainable crews to avoid shortages—lessons learned the hard way during logistic gridlocks and shipping strikes. Customers voice concerns about long lead times and global disruptions; we buffer stocks and maintain dual-sourcing for critical precursors to make certain that fluctuating market winds won’t knock essential supplies off program timelines.

    Sustainability pushes us to reassess older protocols. We recycle waste solvent streams with on-site scrubbers, keep flaring minimal, and invest in optimizing columns to reduce heat use. These improvements matter—not out of obligation, but because they trim utility costs and strengthen product quality for the long haul. Environmental accountability isn’t something we post about once a year; for us, it comes from regular, documented upgrades and pragmatic reuse of resources.

    Every new regulation or industry demand triggers more than just paperwork. Restriction of hazardous substances, for example, sends us back to our chemical roots. We overhaul process controls and draft fresh operator procedures, so today’s batch meets tomorrow’s specifications. Our team never stops learning; we update on best practices, regulatory changes, and market price swings as a daily discipline. By sharing these updates with our customers, we build resilience into our supply relationships and shorten the path from plant to product launch.

    Why Producers Stand Behind Their Product

    Nothing replaces deep expertise built from years in production, constant hands-on quality checks, and staying alert for every minor deviation. As manufacturers, we don’t view N-Methylpiperidine as an interchangeable widget. We track performance, record every exception, and chase root causes so both our teams and our customers waste less and achieve more. Wherever this compound goes—be it the pharmaceutical production line, the fine chemicals lab, or the high-performance coatings plant—our process shapes its impact. It’s our job to make sure it arrives consistent, pure, and ready to deliver on the toughest day, not just the easy ones.