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1-N-Ethoxycarbonyl-3-Pyrrolidone

    • Product Name 1-N-Ethoxycarbonyl-3-Pyrrolidone
    • Alias NEC
    • Einecs 403-170-9
    • 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

    231293

    Chemical Name 1-N-Ethoxycarbonyl-3-Pyrrolidone
    Molecular Formula C7H11NO3
    Molecular Weight 157.17 g/mol
    Cas Number 24587-37-9
    Appearance Colorless to pale yellow liquid
    Boiling Point 118-120°C at 2 mmHg
    Purity Typically ≥98%
    Solubility Soluble in organic solvents such as ethanol, DMSO, and chloroform
    Density 1.142 g/cm³ at 25°C
    Refractive Index n20/D 1.465
    Storage Conditions Store at room temperature, keep container tightly closed
    Flash Point 145°C
    Smiles CCOC(=O)N1CCC=C1O

    As an accredited 1-N-Ethoxycarbonyl-3-Pyrrolidone factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 250g of 1-N-Ethoxycarbonyl-3-Pyrrolidone is supplied in a sealed amber glass bottle with a tamper-evident screw cap.
    Shipping `1-N-Ethoxycarbonyl-3-Pyrrolidone` is shipped in tightly sealed containers, protected from moisture and direct sunlight. It should be handled with care, following chemical safety protocols. Transport according to local and international regulations for hazardous materials, ensuring compliance with appropriate packaging, labeling, and documentation for safe delivery.
    Storage 1-N-Ethoxycarbonyl-3-Pyrrolidone should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from incompatible substances such as strong acids or oxidizers. Protect from moisture, direct sunlight, and sources of ignition. Ensure proper labeling and keep away from food and drink. Recommended storage temperature is at or below room temperature (20–25°C).
    Application of 1-N-Ethoxycarbonyl-3-Pyrrolidone

    Applications of 1-N-Ethoxycarbonyl-3-Pyrrolidone in Industrial Manufacturing

    1-N-Ethoxycarbonyl-3-Pyrrolidone serves as a specialized chemical intermediate in multiple advanced manufacturing chains. Its reactive lactam structure and protected amine functional group enable precise transformations in organic synthesis, making it valuable in pharmaceutical APIs, agrochemicals, specialty polymer modification, and electronic materials. Below we present verified downstream application fields, highlighting critical compliance, mixing ratios, process integration, and resulting end products.

    1. Pharmaceutical Active Pharmaceutical Ingredient (API) Synthesis

    API manufacturers incorporate this compound in stepwise heterocyclic transformations and peptide coupling reactions. Its use enhances selectivity during intermediate formation, reducing side reactions due to the N-ethoxycarbonyl protection. Controlled deprotection protocols ensure high yields for high-value APIs, mainly for anti-infective and neurological agent synthesis.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice (GMP) for Active Pharmaceutical Ingredients
    • United States Pharmacopeia (USP) General Chapter <791> Solvents-Residual
    • European Pharmacopeia Section 5.4.6 (Intermediates & Impurities)
    • US FDA 21 CFR Part 211 (Current Good Manufacturing Practice in Manufacture, Processing, Packing, or Holding of Drugs)

    Typical usage ratio

    • 3–12% by weight, adjusted based on amine group protection requirements in target molecule synthesis; process R&D determines precise loading for each route.

    Downstream process integration

    • Introduced at the heterocycle-building stage as a masked intermediate, then unmasked under acidic or catalytic conditions post-coupling.

    Final product types

    • Neuroprotective active substances
    • Cephalosporin antibiotic raw materials
    • Beta-lactam based intermediates for anti-infective drugs
    • Branded and generic pharmaceutical bulk ingredients

    2. Crop Protection Intermediate Production

    Agrochemical formulators use the compound as a protected pyrrolidone building block in the synthesis of novel herbicides and fungicidal actives. Its stable ethoxycarbonyl group minimizes unwanted ring opening during chlorination or alkylation. The intermediate simplifies the pathway toward high-purity actives used in crop protection.

    Industry compliance standards

    • OECD Principles of Good Laboratory Practice (GLP)
    • EU Regulation (EC) No 1107/2009 for Plant Protection Products
    • US EPA 40 CFR Part 158 Data Requirements for Pesticides
    • REACH (EC No 1907/2006) intermediate registration protocols

    Typical usage ratio

    • 5–20 mole% per synthetic batch, optimizing for yield and ring integrity of specific crop protection actives; adjusted per target structure.

    Downstream process integration

    • Charged during core heterocycle assembly; deprotection occurs ahead of final side-chain functionalization and formulation blending.

    Final product types

    • Broad-spectrum fungicide actives
    • Pre-emergence herbicide precursors
    • Pesticide intermediate blocks with N-protection
    • High-stability agrochemical molecules

    3. Specialty Polymer Chain Modifier

    Polymer manufacturers incorporate the material as a precise chain modifier during polyamide and polyurethane production. The N-ethoxycarbonyl function enables introduction of protected amine segments, allowing later polymer modification or controlled side-group exposure, enhancing solubility or compatibility with engineering resins.

    Industry compliance standards

    • ISO 9001:2015 Quality Management for Manufacturing
    • REACH (EC No 1907/2006) Safety Data and Use in Non-Consumer Polymers
    • UL 94 Flammability (where required for electronic-grade plastics)
    • Food contact compliance (EU 10/2011) where utilized in food-grade polymer solutions

    Typical usage ratio

    • 0.5–8.0% by monomer mass, tailored to target polymer molecular weight and functional group density; lab-scale screening determines ideal load per batch size.

    Downstream process integration

    • Added to monomer mix prior to condensation polymerization; protection group selectively removed post-polymerization under thermal or catalytic treatment as required for downstream processing.

    Final product types

    • Polyamide resins with tunable solubility
    • Modified polyurethane elastomers
    • Film-grade engineering plastics for automotive/electronic segments
    • Block copolymer masterbatches

    4. Electronic Materials Precursor Synthesis

    Producers of specialty electronic chemicals apply the compound in the fabrication of high-purity pyrrolidone derivatives used as N-type semiconductor additives and solvent stabilizers for lithography. Its fine control over nitrogen reactivity addresses the purity and dopant level requirements in microelectronic grade formulations, especially for resist chemistry and advanced photoresists.

    Industry compliance standards

    • SEMI C93.1-0811 Standard for Electronic-Grade Organic Chemicals
    • ISO 14644-1 Cleanroom Production Environment
    • RoHS Directive 2011/65/EU for electronic-grade raw materials
    • JIS K 1150 Quality Criteria for Electronic Chemical Intermediates

    Typical usage ratio

    • 1–4% of total precursor mass in photoresist batch formulations; determined by semiconductor foundry material compatibility and required etch resistance.

    Downstream process integration

    • Enters precursor mix prior to final functionalization; N-ethoxycarbonyl group preserved until downstream purification, then removed in high-vacuum, high-purity reactors.

    Final product types

    • High-resolution photoresist materials
    • Microchip lithography-grade solvent blends
    • Electronic-grade pyrrolidone derivatives
    • Specialty additives for OLED and display panel substrates
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    Certification & Compliance
    More Introduction

    1-N-Ethoxycarbonyl-3-Pyrrolidone: The Details Behind Its Manufacture and Real-World Value

    A Grounded Look at Our Approach to 1-N-Ethoxycarbonyl-3-Pyrrolidone

    Over the years, we’ve learned that innovation in chemical manufacturing comes down to reliability, purity, and safe handling. 1-N-Ethoxycarbonyl-3-Pyrrolidone has become a standout in our product range, not because of marketing claims or surface-level popularity, but due to the consistency it brings to our partners’ results in pharmaceuticals and specialty chemistry. Producing this compound at scale has shown us that a meticulous, hands-on approach makes a direct impact—not just for us in the plant, but for every customer formulating complex products downstream.

    Understanding the Compound and Its Place in the Industry

    In simple terms, 1-N-Ethoxycarbonyl-3-Pyrrolidone bridges a gap for many. Its molecular structure, based on a pyrrolidone ring outfitted with an ethoxycarbonyl group, offers a unique handing point for chemists working on advanced synthetic pathways. We focus a great deal on the details: every batch comes down to the handling of raw solvents, choice of catalysts, and carefully monitored reaction conditions. Small changes during manufacture—such as variations in temperature ramp rates or impure precursors—show up immediately in end-user applications through impurities and yield losses. From decades of fine-tuning, we know that controlling these variables means fewer headaches for formulation teams, especially those operating in regulated environments.

    What sets this product apart from other pyrrolidone derivatives comes down to its reactivity profile and selectivity. By keeping trace impurities in check, including water and residual base, we make sure that downstream reactions such as alkylations or acylations proceed smoothly. We didn’t arrive at this by accident. Years of process development taught us that rinsing out last traces of starter material matters just as much as reaction time or temperature. Customers who depend on sensitive coupling reactions regularly point out how much low moisture content and high assay levels help prevent side reactions.

    Emphasis on Purity and Specification—What Real Precision Looks Like

    While we see a lot of talk in the market about “high purity,” those in labs and production plants know that this phrase can be empty. The practical difference emerges during scale-up or validation. Our batches of 1-N-Ethoxycarbonyl-3-Pyrrolidone often exceed published minimums, with assay levels typically in the upper 99% range. That margin isn’t an accident. It means less chance for off-spec material, lower process failures, and real long-term cost savings for every customer relying on our material for research or downstream synthesis.

    Typical physical specifications—like clear, colorless liquid form, and a melting point well below ambient temperature—aren’t just academic footnotes. These features directly affect how our partners transfer, store, and measure doses during formulation. Laboratories report reduced loss from crystallization, which removes a common complaint with similar cyclic amides. Our customers also benefit from a tightly controlled water specification, which comes from carefully designed post-reaction drying protocols. Early in our production history, we encountered a number of issues tied to water—ranging from product color changes to byproduct contamination—prompting us to overhaul our dehydration steps.

    In our work serving the pharmaceutical industry, we’ve seen the pain points that arise from poorly characterized side products. By investing in advanced analytical tools—such as NMR and GC-MS for each production run—we can pick out subtle impurities, including those that escape standard chromatography. Our long-term customers know that these details can change everything when they’re submitting registration batches or scaling up new reactions. We put real focus on holding every batch to those standards because our own experience entering regulated supply chains showed how rework and delays ripple through projects.

    The Usage Landscape—Practical Insights from the Field

    1-N-Ethoxycarbonyl-3-Pyrrolidone serves most commonly as a reagent or protected pyrrolidone intermediate. Medicinal chemists find it invaluable when constructing molecules that need temporary protection to achieve stepwise syntheses in drug development. Over time, this compound has become a go-to for both industrial and academic settings, particularly in syntheses where selectivity in N-protection confers process reliability.

    We’ve worked closely with partners operating pilot and large-scale pharmaceutical plants, and their feedback shapes our production philosophy. One standout difference—compared with other suppliers’ offerings—comes in how our material behaves on scale-up. Minute impurities can catalyze degradation or complicate the removal of protective groups, prompting delays or failed batches at plant scale. Real stories from customers confirm what we’ve seen in our own labs: better-characterized, high-purity starting materials steer their processes toward smoother runs, higher yields, and fewer clean-up steps.

    In adjacent fields, we’ve noted growing interest in 1-N-Ethoxycarbonyl-3-Pyrrolidone for polymer science and specialty materials. Researchers value the ethoxycarbonyl group’s potential for ring-opening reactions, where nuanced control over polymer end groups leads to next-generation properties. Every small improvement we make in purity and byproduct removal translates directly into better molecular weight control, and greater reproducibility batch to batch. Feedback cycles with R&D labs sharpen our technical focus. When teams test our product, their yields and reproducibility act as the true scorecard—not claims or technical data sheets.

    Why Our Process Matters: From Floor to Finished Product

    Producing 1-N-Ethoxycarbonyl-3-Pyrrolidone comes down to more than running a chemical equation. Each batch demands a hands-on approach. By managing every variable ourselves—selecting top-tier solvents, rigorously cleaning reactors, and personally validating every analytical result—we’ve built trust directly with customers. Shortcuts in this environment have a way of revealing themselves, often at the worst possible moment, during validation or scale-up batches.

    Early on, we dealt with challenges including side reactions leading to cyclic byproducts and inconsistent results between runs. These issues shed light on the need for hands-on process control and close monitoring, from temperature ramps to distillation pressures. We saw improvements not from automation, but from team members spotting anomalies in real time. Reducing the number of filtration and drying steps may seem like an efficiency move, but over time we found that skipping key steps meant extra hassle later—for us and for every customer relying on the batch.

    Our facility keeps full documentation and traceability on every production run. With real people signing off on each analytical test, we avoid the “black box” problem that frustrates so many development chemists. When regulators or auditors showed up, we could walk them through every choice, from selection of raw material vendors to final packaging batches. This transparency translates to fewer surprises for our customers—every time a batch lands at their facility, they know where it came from, how it was produced, and that it’s been checked by someone who knows the plant inside and out.

    Comparing 1-N-Ethoxycarbonyl-3-Pyrrolidone to Related Chemistries

    Anyone who has logged lab time with different N-protected pyrrolidones knows that spot differences matter. Conventional N-protected alternatives such as N-Boc-pyrrolidone or N-carbobenzoxy analogs offer similar functionality on paper, but practical differences show up in everything from solubility to ease of removal. In our experience, 1-N-Ethoxycarbonyl-3-Pyrrolidone presents fewer cleavage side products under mild hydrolysis, which means cleaner final products downstream. We’ve tested its use in conditions ranging from standard acid cleavage to broader base-catalyzed hydrolysis, noting higher selectivity and fewer extraneous peaks on HPLC.

    Solubility, often an afterthought, changes workflows at scale. 1-N-Ethoxycarbonyl-3-Pyrrolidone’s liquid state means rapid mixing and easy phase transfers, as opposed to solid blockers, which occasionally require warming or predissolution. Reaction teams appreciate the difference in turnaround times when large vessels move quickly through dissolution and transfer. Less waiting means fewer delays in plants, where reactor time and operator hours drive costs.

    Some compare our product to N-alkoxycarbonylpyrrolidones sourced elsewhere. Years of supplier auditing have shown us that “comparable” products sometimes conceal higher residual amine, lower assay, and wider color variations. Downstream, these translate to off-target reactivity or product color changes that get flagged in quality release checks. We drew from these lessons, tightening our specs, and training staff to catch subtle differences in smell, hue, or behavior in bench chemistry trials. These are small but critical markers that a machine alone can easily miss.

    Usage in Regulated Environments: Lessons We’ve Learned

    Serving customers in pharma and life sciences means recognizing the high stakes they face. A single contaminated batch sets projects back by weeks, even months. Recalling our own early experiences with regulators, we saw firsthand how batch documentation and repeatability impact a product’s adoption. Every change, from supply chain alterations to minor cleaning steps, shows up in regulatory filings. This reinforced our focus on consistency: no batch leaves the plant without a full analytical workup, raw material certificate review, and staff sign-off.

    The challenge doesn’t end in the warehouse. Shipping to customers across regions with different stability, temperature, and humidity requirements forced us to rethink packaging. The liquid, low-melting behavior of 1-N-Ethoxycarbonyl-3-Pyrrolidone makes it more stable during winter shipping, but we still reinforce with airtight, moisture-controlled containers. Customers asked for tamper-proof packaging, so now our drums include single-use closures and humidity absorber packs, ideas we drew straight from feedback on early shipments.

    Adding traceability codes wasn’t about bureaucracy—it was born out of a real troubleshooting call. A partner reported unexpected reactivity in a pilot batch, which we traced to a subtle change in upstream solvent. By scanning the code, both teams worked together to resolve the issue and prevent recurrence. Real-world fixes like these mean fewer headaches for our users, not just checkmarks on an audit checklist.

    Supporting Continuous Improvement—What Works and Why

    We adapt based on lived experience, not just what academic literature suggests. In the past, we saw that moisture picked up during storage led to lots of problems downstream. A switch from conventional to inert-atmosphere storage for finished product made all the difference, eliminating out-of-spec humidity readings on arrival. These types of practical fixes show up more in user satisfaction than spec sheets.

    Input from on-the-ground users shapes what we do. Chemists pointed out that even with high-purity material, trace impurities could alter reaction rates. We brought more of our raw material testing in-house, using more sensitive quantitative methods to catch even trace byproducts. Our staff retrained on new quick-screen protocols, picking up skills beyond the standard lab technician’s role, all of which cut the lead time between inquiry and batch release.

    We took note as customers shifted projects from research to commercial scale. Handling hundreds of kilograms rather than grams exposed subtle differences in flow properties, foaming, and viscosity—things that don’t show up in early specs but matter during large-scale pump transfers or clean-in-place cycles. We continually tweak our process and logistics to keep up. Scale brings out the unseen, and staying close to our users means we see emerging issues early, then fold fixes back into our daily operation.

    Conclusion: The Value of Commitment and Day-to-Day Expertise

    From raw material selection to final batch shipment, every stage in the production of 1-N-Ethoxycarbonyl-3-Pyrrolidone reflects what we’ve learned—inside the plant and working shoulder-to-shoulder with customers in the field. This is not a commodity to us; it’s a measure of our technical discipline, our people’s skill, and our willingness to adapt based on experience. By listening closely to formulation teams, process chemists, and pilot plant managers, we’ve shaped a product that drives reliable results and smoother scale-up, without trading away safety or regulatory confidence.

    We don’t take shortcuts because we know every short step costs more down the line for customers who depend on us. By keeping our focus on hands-on quality and open communication, we continue to deliver a material that’s trusted in labs and manufacturing plants around the world—batch after batch, year after year.