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N-Methyl Pyrrole

    • Product Name N-Methyl Pyrrole
    • Alias 1-methyl-pyrrole
    • Einecs 202-866-7
    • 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
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    Specifications

    HS Code

    879345

    Chemical Name N-Methyl Pyrrole
    Chemical Formula C5H7N
    Molecular Weight 81.12 g/mol
    Cas Number 96-43-5
    Appearance Colorless to pale yellow liquid
    Boiling Point 111-112°C
    Melting Point -60°C
    Density 0.971 g/cm³ at 20°C
    Refractive Index 1.496
    Flash Point 18°C (closed cup)
    Solubility In Water Slightly soluble
    Odor Characteristic, amine-like
    Flammability Highly flammable
    Pubchem Cid 12153
    Inchi Key GOJMKRDTUYGBLN-UHFFFAOYSA-N

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

    Packing & Storage
    Packing N-Methyl Pyrrole is packaged in a 500 mL amber glass bottle, sealed with a screw cap, and labeled with hazard warnings.
    Shipping N-Methyl Pyrrole should be shipped in tightly sealed, chemical-resistant containers, protected from light and moisture. It must be transported according to local, national, and international regulations for flammable liquids, ensuring appropriate labeling and documentation. Use secondary containment and avoid shipping with incompatible substances such as strong oxidizers and acids.
    Storage N-Methyl Pyrrole should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from sources of ignition. Protect it from heat, moisture, direct sunlight, and incompatible materials such as oxidizing agents. Store under inert atmosphere if possible to prevent oxidation or degradation, and keep away from acids. Use appropriate safety measures to handle spills or leaks.
    Application of N-Methyl Pyrrole

    Applications of N-Methyl Pyrrole in Industrial Manufacturing

    N-Methyl Pyrrole serves as a critical intermediate in specialized sectors of chemical manufacturing. As the original producer, we focus on supplying consistent quality for advanced synthesis in both organic and fine chemical industries. The following application domains highlight established downstream uses with industrial relevance.

    1. Conductive Polymer Synthesis for Antistatic Coatings

    Manufacturers incorporate N-Methyl Pyrrole to synthesize polypyrrole-based conductive polymers, widely used for antistatic and electromagnetic interference (EMI) shielding coatings in electronics and packaging. The methyl group on the pyrrole ring increases polymer processability, allowing for fine adjustment of coating properties demanded by electronics OEMs. Consistent purity is crucial to achieve stable conductivity and reliable film quality in end-use.

    Industry compliance standards

    • RoHS Directive 2011/65/EU (Restriction of Hazardous Substances in electrical and electronic equipment)
    • IEC 61340-5-1 (Electrostatics protection standard for electronics manufacturing)
    • ISO 9001:2015 (Quality Management Systems in coating production)
    • REACH (EC 1907/2006) chemical substance registration

    Typical usage ratio

    • 2–10% by mass in polymer feedstock, adjusted to balance antistatic performance and processability; specific ratio depends on required surface resistivity and target substrate.

    Downstream process integration

    • Added at polymerization stage after initiator charging, ensuring uniform incorporation in polymer matrix before subsequent dispersion into coating system.

    Final product types

    • Antistatic surface coatings for electronic component trays
    • EMI shielding paints for enclosures
    • Cleanroom flooring and wall coatings

    2. Intermediate for 5-Membered Nitrogen Heterocycle Pharmaceuticals

    Specialty drug synthesis leverages N-Methyl Pyrrole for constructing complex nitrogen heterocycles in approved pharmaceutical APIs. Methylation at the nitrogen enables tailored ring reactivity, facilitating regioselective functionalization in late-stage synthesis. Its purity profile and low residual solvent content are essential to avoid interference with downstream reactions and final drug quality.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice (GMP) for Active Pharmaceutical Ingredients
    • US FDA 21 CFR Part 211 (Finished Pharmaceuticals)
    • Ph. Eur. 10.0 (European Pharmacopoeia, general requirements for APIs)
    • USP-NF (United States Pharmacopeia – National Formulary)

    Typical usage ratio

    • 1.5–8.0 equivalents relative to the cyclization precursor, based on target synthetic route and step optimization for yield and purity.

    Downstream process integration

    • Charged in closed reactor during cycloaddition or acylation steps to introduce the N-methyl-substituted pyrrole core, usually before purification and crystallization.

    Final product types

    • Anti-inflammatory agent intermediates
    • Anticonvulsant pharmaceutical building blocks
    • Imaging probe precursors for radiopharmaceuticals

    3. Precursor in Agrochemical Active Compound Synthesis

    Agrochemical producers utilize N-Methyl Pyrrole to construct heterocyclic scaffolds in modern crop protection agents. The N-methyl group imparts increased lipophilicity and metabolic stability, especially critical for active ingredients targeting fungal, insect, or weed resistance. High assay and absence of process-related impurities ensure no adverse impact on field application performance or regulatory approval.

    Industry compliance standards

    • FAO/WHO Specifications for Plant Protection Products
    • ISO 17025:2017 (Testing Lab Quality for raw material analysis)
    • REACH (EC 1907/2006) pre-registration for chemicals in crop protection
    • EPA 40 CFR Part 180 (Tolerance requirements US)

    Typical usage ratio

    • 3–6% by mol in heterocycle synthesis reactions, adjusted for active ingredient yield and process safety margins.

    Downstream process integration

    • Dosed into batch reactor for N-methyl substitution or ring closure as part of multi-step synthetic route to generate the functionalized pesticide ingredient.

    Final product types

    • Systemic fungicide actives with pyrrole backbone
    • Herbicide pre-mixtures for pre-emergence application
    • Broad-spectrum insecticide intermediates

    4. Dye and Pigment Intermediate in Specialty Colorants

    Producers of high-performance dyes and pigments employ N-Methyl Pyrrole to construct stable, intensely colored heterocyclic systems for plastics, fibers, and inkjet formulations. Its substitution profile influences electronic delocalization within the chromophore, enabling tailored absorption wavelengths for automotive, packaging, or textile uses. Product homogeneity is vital for color repeatability in demanding end markets.

    Industry compliance standards

    • Oeko-Tex Standard 100 (Textile safety compliance for dyestuffs)
    • EN 71-3 (Toy Safety: migration of certain elements, for pigment use in toys)
    • CEN/TC 298 (Pigments and extenders for paints and coatings)
    • ISO 9001:2015 (Applied to pigment and dye manufacturing)

    Typical usage ratio

    • 1–7% by mass in total pigment or dye batch, with adjustment for chroma strength, shade, and required fastness characteristics.

    Downstream process integration

    • Standard procedure introduces the chemical at condensation or coupling reaction stage, controlling feed rate to finely tune color yield and purity.

    Final product types

    • Disperse dyes for polyester fibers
    • Organic pigments for automotive coatings
    • Specialty inkjet colorants

    5. Monomer for Electrochemical Sensor Material Fabrication

    Analytical instrument manufacturers select N-Methyl Pyrrole as a monomer precursor for fabricating polypyrrole-based electroactive films. These films serve as transducer layers in biosensors and chemical sensors, offering selective permeability and controlled redox characteristics. Manufacturer-controlled batch consistency directly affects sensor reproducibility and calibration in regulated laboratory environments.

    Industry compliance standards

    • ISO 13485:2016 (Quality management systems for medical device production)
    • GLP (Good Laboratory Practice, OECD principles)
    • IEC 60601-1 (Medical electrical equipment safety, for sensors within devices)
    • EU In Vitro Diagnostic Regulation (IVDR) 2017/746

    Typical usage ratio

    • 0.5–4% of sensor substrate surface coating; batch-to-batch adjusted for sensor response time and stability profiles.

    Downstream process integration

    • Electropolymerization onto sensor electrodes, with process parameters set for film thickness and uniformity essential for analytical precision.

    Final product types

    • Glucose oxidase biosensor films
    • Electrochemical detectors for food safety
    • Environmental monitoring sensor heads

    6. Organic Electronic Material Precursor

    Producers of organic semiconductors and photovoltaic materials incorporate N-Methyl Pyrrole to introduce tailored electronic properties in organic light-emitting diodes (OLEDs) and solar cell components. Its electron-rich structure supports efficient charge transport, while substitution enhances solubility and layer formation. Strict control over residual solvents and oligomeric byproducts is required to ensure device stability under operational conditions.

    Industry compliance standards

    • ISO 14001:2015 (Environmental management for electronic material production)
    • JEDEC JESD625 (Requirements for handling ESD sensitive devices)
    • IEC 60950-1 (Safety for electronic components)
    • RoHS (Restriction of Hazardous Substances in electronics)

    Typical usage ratio

    • 3–12% by weight in polymer blend, ratio optimized to achieve target workfunction, mobility, and device life.

    Downstream process integration

    • Introduced in solution blending phase prior to thin film deposition, with purity carefully monitored through in-process QC sampling.

    Final product types

    • OLED display active layers
    • Organic solar cell donor-acceptor materials
    • Flexible printed circuit films for wearable electronics
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    Certification & Compliance
    More Introduction

    N-Methyl Pyrrole: Practical Insight from the Manufacturer’s Floor

    Understanding What Sets N-Methyl Pyrrole Apart

    Inside the walls of a chemical plant, every raw material and intermediate draws attention for more than its chemical structure. We start with N-Methyl Pyrrole, a building block whose utility has kept it in continuous demand over years of production cycles and as markets shift. Chemists know its structure, C5H7N, but the practical difference lies in its single methyl group attached to the nitrogen atom, opening doors that basic pyrrole won’t budge.

    Years of hands-on manufacturing and feedback tell us that small changes have outsized impact. With N-Methyl Pyrrole, the methyl substitution isn’t some academic tweak. After repeated distillation runs, handling of raw pyrrole and its methylated counterpart becomes routine, yet the difference in odor, volatility, and reactivity remains hard to miss. Customers in specialty chemicals, pharmaceuticals, and electronics consistently press for higher purity, often 99% and above (GC), as process outcomes are noticeably affected by contaminants or inconsistent methylation.

    Consistent Quality, Practical Scale

    Verifying content and purity is not just a formality or checkmark. Over years of batch-scale and continuous pilot production, we learned how slight shifts in catalyst dosage or reaction temperature can raise impurity profiles and drive downstream headaches. Consistent N-Methyl Pyrrole never comes from shortcutting purification steps or rushing reactor cycles. Yield and throughput tempt every manufacturer to push for faster turnaround, but the engineers on the floor who see sticky product or color bodies know where that trouble started.

    Scale presents its own lessons. Lab-grade N-Methyl Pyrrole has its place, but kilogram or tonne lots bring new concerns. Dissolved oxygen content, storage temperature, and container compatibility all bear on the stability and usability over time. To minimize customer complaints, weekly stability checks and memory of every batch’s quirks become second nature. Problems are rarely due to some big process flaw anymore, but almost always the accumulation of many microscopic sources of error—every seal, every trace of water, every degree out of specification makes itself known.

    Key Applications: Where the Insights Come In

    N-Methyl Pyrrole finds no single home. Major usage trends emerge in two lines: as a core intermediate in pharmaceuticals—to build complex molecules—and as a monomer or additive in electronic materials. Each end-user is particular about traceability and supply chain steadiness, but the rationale takes shape in fine details.

    On the pharma side, the methyl group gives synthetic chemists another handle for selectivity. We have fielded requests for both raw and distilled grades, as some users need lower water or lower color to suit subsequent coupling reactions. Chatting with R&D teams, it becomes clear that batch-to-batch consistency isn’t just a preference. Reactions relying on precise N-Methyl Pyrrole input convert poorly or unpredictably with anything less. The stakes ripple outward: resource waste, failed regulatory submissions, and timeline overruns in today’s competitive pharma landscape.

    Turn from pharma to electronics, and the requirements shift. N-Methyl Pyrrole shines in the synthesis of conductive polymers—every electronics manufacturer watching for the charge transport performance of their finished films. The methyl group provides better processability and modulates electronic properties, so dull performance cannot be traced just to a base pyrrole impurity. Highly purified, water-free N-Methyl Pyrrole avoids film defects and irregularities, especially as specs become ever tighter in flexible displays or sensitive organic transistors. Lab anecdotes about mixing N-Methyl Pyrrole poorly or using low-grade product quickly turn into failed batch stories rather than case studies.

    Comparing Pyrrole Variants—What We’ve Learned

    To the casual observer, swapping standard pyrrole for N-Methyl Pyrrole sounds small—only a methyl group added. This difference unfolds dramatically under real processing conditions. N-Methyl Pyrrole’s lowered nucleophilicity and altered reactivity step in where simple pyrrole becomes too aggressive or too prone to uncontrolled polymerization. In our workshops and plant trials, the comparison is not a matter of “better or worse.” Instead, it’s a strict question of fitness for use.

    N-Methyl Pyrrole resists oxidation a bit better in storage than unsubstituted pyrrole, though air exposure always brings some risk. Prolonged exposure to atmospheric moisture can be catastrophic to downstream yields, prompting us to adapt closed handling systems and use nitrogen blanketing as standard practice for both bulk and specialty filling. Details like these are not a matter of theoretical efficiency—they show up in the routine maintenance logs and incident reports shared among site staff.

    Purity, Stability, and Handling: Practical Focus on Real-World Concerns

    Ask any plant operator about the ideal N-Methyl Pyrrole, and the answers sound the same after a while: colorless to slightly yellow liquid, faint amine-type odor, minimal residual pyrrole or dimethyl pyrrole content, low water. But production runs don’t yield clean results without vigilance. Fractional distillation columns need careful control to avoid thermal decomposition. Water ingress from cooling jackets or storage tanks can spike impurity levels beyond customer specs. Tracking these details isn’t glamourous, but recurring customer audits demand concrete answers to each incident.

    We upgraded our analytical toolset—not out of technical curiosity, but due to complaints that even trace levels of starting pyrrole caused screening failures or delayed product release. GC and Karl Fischer titration became weekly routines, as did coordinating shipment schedules around the stability window of each drum or tote. It isn’t about achieving an abstract level of “quality assurance.” It is about supporting chemists and engineers who don’t have bandwidth for troubleshooting raw materials between launches or scale-up campaigns.

    Downstream Processing and Storage: Lessons from Day-to-Day Operations

    N-Methyl Pyrrole never remains static. On site, practical challenges outweigh theoretical concerns. Odor control, labeling, transfer lines, and drum seals often demand more attention than the actual chemical synthesis step. As one operator joked, “We lose more time to seals and hoses than distillation columns.”

    Years of handling and transferring thousands of liters taught us what technical bulletins miss. Even well-sealed drums can leach vapor if stored too long or above recommended temperatures. Small leaks or headspace oxidation start as minor annoyances but can snowball into lost product or expensive investigations into failed batches. Not every facility invests in nitrogen purging or spark-proof fittings, so knowledge-sharing between operators and plant engineers becomes essential.

    Training has shifted to a focus on practical steps—regular inspection, using proper container liners, keeping drums off sun-exposed docks, and regular maintenance checks. Even off-hours staff pays attention to the “smell test”—if a drum’s aroma grows pungent, it may indicate a seal failure or contamination issue. These steps ensure that product arriving at a customer’s dock matches the specification sheet they received.

    Feedback Loops from Customers and Continuous Improvement

    N-Methyl Pyrrole has long enjoyed a reputation for reliability, but this didn’t happen by luck. Customers—from specialty pharmaceutical labs to circuit board manufacturers—rarely want to experiment with minor impurities or batch variations. Feedback loops have shaped everything from plant layout to analytical regimes. Each time a batch missed the mark, a real change followed—adjusting distillation cut points, refreshing catalyst beds ahead of schedule, or modifying storage protocols.

    Customers who return and order routinely value trust more than new claims. Sometimes a batch flagged for low-level odor or discoloration turned up root causes ranging from trace heavy metals in raw pyrrole, to micro-leaks in fill lines, to exposure to incompatible gasket materials. These “small” problems would not make it into generic product descriptions, but repeat business depends on whether such details are caught and addressed quickly. Auditors and process teams have learned that no paper guarantee replaces the visible track record of consistent, tested shipments.

    Environmental, Health, and Safety Commitments

    Responsible operation in today’s industry means not just pursuing volume or yield, but working proactively to reduce hazards and emissions. N-Methyl Pyrrole comes with real-world risks—its vapors irritate skin and mucous membranes, and its flammability is managed with real discipline. Years of experience have taught us that thorough operator training and redundancy in safety checks are critical. No piece of protective gear or ventilation system gets installed simply for regulatory’s sake. Lessons from near-misses and industry incidents have shaped safer production and handling lines. Closed transfer, leak monitoring, and periodic refresher training remain everyday expectations, not compliance box-ticks.

    Mitigating waste streams also matters for every process run. We’ve adapted solvent recovery and waste neutralization protocols, not just for regulatory compliance but for genuine resource conservation. Suppliers and customers alike ask how residual N-Methyl Pyrrole is handled in byproduct streams, with increasing preference given to closed-loop recycling or thermal destruction over simple disposal.

    Contrast with Non-Methylated Pyrrole and Other Derivatives

    Pyrrole and its methylated counterparts form a complex chemical family, each member playing a distinct role in the production chain. We routinely hear from R&D teams weighing the cost or performance tradeoffs between plain pyrrole, N-Methyl Pyrrole, and higher alkylated variants. Straight pyrrole—cheaper and more widely available—tends to polymerize too easily under the same reaction setups, generating tar, colored byproducts, or loss of yield. Production notes and lab notebooks tell the story: N-Methyl Pyrrole’s altered electron distribution helps suppress runaway reactions and eases work-up steps.

    Technical conversations often return to selectivity. The methyl group on N-Methyl Pyrrole steers reactions in more predictable ways for some coupling or substitution applications, while keeping byproduct formation low. Case studies from specialty electronics highlight where unwanted conductivity or background currents vanish once N-Methyl Pyrrole replaces standard pyrrole in formulations. Robustness in storage, especially against trace oxidation, also swings decisions—for long-term builds or shelf-stable stock, end users stick with methylation to ensure final product performance. Experience across countless batches brings these subtle differences into focus, well beyond what a theoretical reaction screen can show.

    In high-throughput or automated settings, technicians report fewer issues with equipment fouling or filter clogging when running with high-purity N-Methyl Pyrrole. The number of calls from downstream process technicians has dropped since we tightened controls on water and residual pyrrole content, reinforcing that real-world technical performance often pivots on details easily overlooked in classic purchasing or R&D documents.

    Supply Chain Considerations in Changing Markets

    Years of ups and downs across solvents and aromatic intermediates taught us resilience in supply planning. N-Methyl Pyrrole, sensitive in bulk transit, aligns well with regional and global chemical footprints thanks to advancements in packaging and container sourcing. Some users in the electronics sector expect rapid changeovers between grades or packaging sizes as project cycles tighten. Flexibility matters as much as product spec—so teams maintain buffer inventories and schedule filling to match customer release dates, even if it means odd-hour shifts or “just in time” dispatch.

    Delays in raw material sourcing, weather disruptions, or changes in customs inspections are now routine planning factors. Over time, collaborative forecasts, routine contract reviews, and open communication with end-users have shaped how supply is managed. This minimizes any chance that specifications are bent or corners are cut to meet expedient delivery. Shipping and handling precautions are always shared openly: temperature limits, shelf-life estimates, drum compatibility, or batch recall procedures.

    Emergency response protocols, and contingency storage near customer plants, evolved to address any risk of shipment damage or contamination—working relationships, not boilerplate forms, keep quality claims rapid and reliable. Procurement and plant teams know repeat orders for N-Methyl Pyrrole flow only where service matches technical promise.

    Looking Forward: Solving Future Challenges Together

    Building a reputation for N-Methyl Pyrrole that lasts across product cycles depends on tackling problems as they arise, not relying on legacy performance. Sustainability—growing in significance every year—brings new challenges. Customers increasingly expect information not just on basic product data, but on sourcing transparency and waste management. We have learned that sharing even imperfect progress on solvent recovery, green chemistry modifications, or reduced emissions wins recognition in technical circles far more than flawless claims.

    Across thousands of drums shipped and processed, even small advances—smarter process controls, direct feedback from technicians, tracked customer incidents—shape the future direction of our N-Methyl Pyrrole production. Partnership means more than fulfilling a PO: it amounts to listening as much as talking, and carrying out changes based on what actually improves yields, reduces rework, or solves the persistent bottlenecks faced by formulators across diverse industries.

    The story of N-Methyl Pyrrole is not about chasing the next trend, but about careful attention paid at every step of its manufacture, from raw material selection and reaction setup to packaging and technical support. Our role as a producer is defined not by what we claim on paper, but by the reliability every user sees, every time they draw a drum or add a shot to a reactor. That reputation, built batch by batch in the world of industrial chemistry, remains the true foundation of our work.