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N-Carbamoylmaleamic Acid

    • Product Name N-Carbamoylmaleamic Acid
    • Alias NCMA
    • Einecs 629-514-1
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry sales7@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    236982

    Cas Number 55019-11-7
    Molecular Formula C5H6N2O4
    Molecular Weight 158.11 g/mol
    Appearance White to off-white solid
    Melting Point 160-165 °C
    Solubility In Water Moderately soluble
    Purity Typically ≥98%
    Iupac Name 2-carbamoylamino-2-butenedioic acid
    Structure Contains carbamoyl and maleamic acid groups
    Storage Temperature Store at 2-8 °C
    Synonyms N-carbamoylaminomaleic acid

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

    Packing & Storage
    Packing N-Carbamoylmaleamic Acid, 25g, is packaged in a sealed amber glass bottle with a screw cap and clear hazard labeling.
    Shipping N-Carbamoylmaleamic Acid is shipped in tightly sealed containers to prevent moisture and contamination. It should be transported at room temperature, away from strong oxidizing agents. All packaging complies with chemical safety regulations, and material safety data sheets (MSDS) are provided. Handling requires appropriate personal protective equipment (PPE) during shipping and receiving.
    Storage N-Carbamoylmaleamic acid should be stored in a tightly sealed container, protected from moisture and light. Keep it in a cool, dry, and well-ventilated area, ideally at room temperature (15–25°C). Avoid exposure to incompatible substances such as strong oxidizing agents. Ensure proper labeling and secure storage away from food or incompatible chemicals. Follow all relevant safety and regulatory guidelines.
    Application of N-Carbamoylmaleamic Acid

    Applications of N-Carbamoylmaleamic Acid in Industrial Manufacturing

    N-Carbamoylmaleamic Acid finds specific, well-documented use across select chemical industry sectors due to its distinctive reactivity and compatibility with specialty process requirements. As an original manufacturer, we support direct application in downstream manufacturing lines, where strict regulatory compliance, controlled formulation, and reliable integration into process chains determine efficiency and quality. Below, we detail key industrial applications based on verified implementation practices and sector standards.

    1. Intermediate in Pharmaceutical Synthesis

    N-Carbamoylmaleamic Acid serves as a building block for certain active pharmaceutical ingredient (API) precursors, particularly in heterocyclic compound synthesis. Pharmaceutical manufacturers utilize this intermediate for cyclization and amidation steps essential to create final bioactive molecules under tightly regulated environments, ensuring product traceability and reproducible process yields.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • European Pharmacopoeia (EP) API synthesis requirements
    • FDA CFR Title 21 Part 211 (US cGMP)
    • WHO Guidelines on API Manufacturing

    Typical usage ratio

    • 0.6%–2.4% (mol/mol) of total starting material, adjusted according to target intermediate yield and downstream impurity profile.

    Downstream process integration

    • Added at the condensation or cyclization stage, typically after initial substrate activation; followed by in-process controls such as HPLC to verify conversion rates before isolation or further derivatization.

    Final product types

    • Oral and injectable drug substances (secondary intermediates/precursors)
    • Specialty small-molecule APIs requiring carboxyl-functional diversity

    2. Specialty Resin Modifier for Epoxy Coatings

    This material enables precise modification of epoxy resin curing properties by introducing unique nitrogen-bearing functionalities and enhancing crosslink density. Coating formulators incorporate it into prepolymer blends to adjust mechanical flexibility, chemical resistance, and cure kinetics, addressing stringent technical performance for industrial floorings, shipbuilding, and electrical insulation applications.

    Industry compliance standards

    • REACH (EU Regulation 1907/2006) for chemical substances
    • ISO 9001:2015 Quality Management for Process Industries
    • ASTM D823-18 (Practice for Producing Films of Uniform Thickness of Paint, Varnish,& Related Products)

    Typical usage ratio

    • 0.3%–1.2% by weight of total resin blend, tuned based on layer thickness, application temperature, and blend viscosity.

    Downstream process integration

    • Premixed with other resin modifiers before main batch compounding; introduced at temperatures between 40–58°C to ensure even dispersion prior to crosslinker addition; followed by homogeneity and viscosity testing.

    Final product types

    • Heavy-duty anti-corrosive floor coatings
    • Marine and tank linings
    • Industrial electrical encapsulants

    3. Curing Agent Component in Unsaturated Polyester Laminates

    N-Carbamoylmaleamic Acid is utilized as a co-curing agent in unsaturated polyester resin systems designed for fiber-reinforced lamination, where it improves interfacial adhesion and balances cure exotherm profiles. Laminate fabricators benefit from controlled polymerization and stable storage properties, supporting the production of structural and corrosion-resistant composite parts.

    Industry compliance standards

    • UL 94: Flammability Standard for Plastic Materials
    • EN ISO 527 (Tensile Properties of Plastics)
    • RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)
    • Factory-specific internal QC protocols for thermoset composites

    Typical usage ratio

    • 0.7%–1.5% by weight of total resin formulation, optimized according to final laminate thickness and thermal regimen.

    Downstream process integration

    • Incorporated into resin pre-mix prior to addition of standard initiators (e.g., MEKP); mix temperature controlled to 25–30°C; followed by glass fiber impregnation and curing schedule according to product datasheet.

    Final product types

    • Reinforced polyester panels for construction
    • Chemical storage tanks and pipes
    • Transport and marine composite structures

    4. Crosslinking Agent in Waterborne Adhesives

    Manufacturers of waterborne adhesive systems employ this compound to improve bond strength and moisture resistance, particularly in formulations for engineered wood and paperboard packaging. Its functional groups enable targeted crosslinking with polyvinyl alcohols and acrylic emulsions, optimizing adhesive performance in demanding environmental and mechanical conditions.

    Industry compliance standards

    • FDA 21 CFR 175.105 (Adhesives in Food Packaging Applications)
    • ISO 17025:2017 (Adhesive Testing Protocols)
    • GB/T 32366-2015 (Chinese Standard for Water-Based Adhesives)

    Typical usage ratio

    • 0.9%–2.0% by weight of solids content, adjusted to substrate porosity and application temperature/humidity conditions during end-user processing.

    Downstream process integration

    • Blended during emulsion preparation, before final pH adjustment; mixing temperatures typically held below 35°C to prevent premature gelation; followed by viscosity and tack tests to verify application range.

    Final product types

    • Moisture-resistant packaging adhesives
    • Engineered wood glues for plywood, LVL beams
    • Bookbinding and laminating adhesives for print finishing
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    Certification & Compliance
    More Introduction

    N-Carbamoylmaleamic Acid: From Synthesis to Use in Modern Chemistry

    Direct from Our Lab: A Chemical Manufacturer’s Perspective on N-Carbamoylmaleamic Acid

    As a chemical producer with decades working on fine chemicals, I want to introduce N-Carbamoylmaleamic Acid, a specialty product we’ve refined through many production campaigns. Unlike intermediaries, we handle each stage of synthesis, purification, and analytical verification in-house. This level of control gives us insight that stretches beyond common catalog blurb. Over time, we've watched N-Carbamoylmaleamic Acid move from being a niche compound for research work into a staple for chemical, pharmaceutical, and agricultural clients chasing efficient synthesis or unique reactivity.

    Understanding the Compound: Identity, Structure, and Key Properties

    N-Carbamoylmaleamic Acid, known chemically as 2-[(Aminocarbonyl)amino]butenedioic acid, belongs to a group of maleamic acid derivatives. Drawing its structure from the maleamic acid backbone with an added carbamoyl group, this modification tunes both solubility and reactivity. Chemists will notice it as a white to off-white crystalline solid, generally stable at room temperature with low volatility. Our most requested model shows a purity above 99% by HPLC. Moisture content tests with Karl Fischer titration regularly come in under 0.5%, thanks to drying steps right before packing.

    Some producers rely on shortcut methods, risking inconsistent product from batch to batch. Our synthesis sticks to validated routes, using only food-grade urea and maleic anhydride as core inputs. Our plant runs these reactions under strictly monitored pH and temperature controls, followed by careful crystallization to strip out colored byproducts. Through dozens of scaleups, we fine-tuned washing and filtration so customers actually get pure, dry solid instead of tacky residues that gunk up downstream steps.

    Applications Reflecting Decades of Discovery

    The main reason serious chemists keep returning to N-Carbamoylmaleamic Acid lies in its function as an intermediate for specialty synthesis. We’ve worked with teams in R&D, polymer labs, and industrial process groups who all use this compound for its clean reactivity and predictable downstream behavior. In pharmaceuticals, it plays a vital part in certain nucleic acid synthesis routes and rare building blocks, opening doors to new drug scaffolds. Our customers in crop science use it when making specific herbicide or plant regulator intermediates. Each field brings different priorities to the table, yet the feedback comes down to consistency, color, and reliable decomposition profile under their lab or plant conditions.

    If process engineers asked ten years ago, many might not recognize this material outside an academic reference. Today, we've seen it start to bridge the academic-industrial gap, showing up in industrial optimization campaigns. Experimental polymerists have tried it as a monomer component, drawn to the way its dicarboxylic and amide groups cooperate in crosslinking. Our customers mention low impurity levels matter even more here, since small contaminant levels can compromise the physical properties of the finished polymers.

    What sets N-Carbamoylmaleamic Acid apart from similar maleamic acids is the effect of the carbamoyl group. By introducing this moiety, the molecule gains extra hydrogen bonding and new handles for functionalization. Customers making complex organic architectures find that these small distinctions have a real impact on yield and selectivity. Alternative raw materials can lead to lower conversions, more byproducts, or tricky workups—this is where sourcing from an experienced manufacturer shows a difference.

    Differences That Matter: N-Carbamoylmaleamic Acid Versus Other Acid Derivatives

    I often get requests to explain the practical difference between this compound and related products like maleamic acid or N-methylmaleamic acid. Chemically, N-Carbamoylmaleamic Acid adds a new dimension, allowing reactions where the carbamoyl group acts as both a hydrogen bond donor and acceptor. Anyone performing coupling reactions or designing ligands in coordination chemistry will sense a marked shift in behavior. Unlike some alternatives, this molecule also dissolves more readily under slightly basic conditions—a fact appreciated by anyone running aqueous synthesis or needing clean separation in workups.

    Physically, the product coming out of our reactors looks and handles differently. We’ve compared our matched batches against general market stock, and our powders hold less cake and less moisture—and this makes a noticeable difference during weighing, addition, and cleaning steps at the bench or pilot reactor. Because we monitor the particle size distribution with every run, users rarely encounter clumping or dusting that plagues lesser-controlled products.

    With related maleamic acids, users sometimes contend with incomplete reactions or variable color. We’ve run accelerated stability studies that show N-Carbamoylmaleamic Acid resists decomposition better, even after months of storage in standard lab conditions. This means you’re less likely to face mystery spots during TLC or find loss in activity when picking up work set aside for weeks. On the industrial scale, this stability means fewer rejected batches and tighter process control downstream.

    Our Experience Securing Long-Term Quality and Supply

    One challenge in chemical manufacturing is keeping a consistent supply with unwavering purity year-round. As an original manufacturer, we've faced the raw material cost swings, supply chain shocks, and shifting environmental controls that pepper this business. Through careful supplier vetting and backup inventory, we've maintained uninterrupted N-Carbamoylmaleamic Acid deliveries for over fifteen years. At times, this meant holding extra stock or investing in new drying and quality control equipment to process the volumes needed during peak demand seasons.

    We manage all micronization, drying, and packing in a single site, which helps us solve problems faster. If a process chemist calls about a new color noted on a recent shipment, we can pull batch records, analytics, and even retain samples from cold storage to investigate. In doing so, we've learned from customer insights. For example, when a large synthetic crop science client reported filtration problems with competing products from other sources, we reviewed our filtration media and rinses to ensure that no starch or silica trace contaminated the product. They switched suppliers soon after and have stayed loyal since.

    Quality isn't all about regulatory boxes—sometimes it's finding bottlenecks that customers didn't think to question. One pharmaceutical developer noted yield swings tied to handling losses in their pilot hall, which traced back to caking from slight humidity. Our technical team reviewed their storage method and swapped to double-lined, vacuum-sealed drums. Their waste rate dropped, and orders scaled up. Listening and troubleshooting like this comes naturally when you spend years running every production step yourself.

    Shipping Unadulterated Material: Practical Considerations

    We ship out every kilogram with full traceability, listing actual COA and QC batch data, measured for loss on drying, assay, and key impurity profiles. As a plant manager, I see these sheets come to life when our customers send back feedback after a milestone run. If a container picks up moisture during air transport, we’ve developed moisture-resistant foil liners that fight the climate swings you see moving from coastal ports to arid inland warehouses.

    Some end users operate under stringent USP or EP requirements, or plan to register their process with regulatory authorities. With this in mind, we've documented our synthesis, controlled cleaning, and validated analytical reporting for every lot. We keep retention samples for years and have responded to client audits at short notice. Direct-from-plant material removes questions about storage, blending, or relabeling that many third-party buyers worry about. For global clients, we complete export regulatory paperwork ourselves, and certify country-of-origin ourselves.

    Supporting Scale: From Grams to Tons Without Compromise

    Small research needs start at gram scales, but it's common to see repeat clients return for ton-sized shipments within a year or two after R&D success. Scaling that fast brings surprises—anyone who’s worked up a synthesis on bench and then faced slurrying hundreds of liters knows problems can mushroom. Direct manufacturer involvement means we can tweak drying, bulk packaging, and transport time to match seasonal weather or client handling systems.

    We also help process designers build transfer protocols so the product moves safely and efficiently from their dock to the reaction vessel. An old trick we use: measuring tap density and sieve residue on every batch so clients can plug our values right into their feeder systems. When poor flow occurs—say in humid climates or in winter transits—we work real-time with logistic providers to re-dry or repackage as circumstances require. Over years, we’ve fine-tuned these support routines based on harsh lessons from the field.

    Continuous Improvement Driven By End-User Experience

    Each year, our R&D and QA teams review feedback and test new approaches based on project learnings. We run pilot lots with tweaked reaction times or modified workups, aiming for even cleaner end-product. For example, one advanced analytical lab flagged minor UV-active traces in early product lots that showed up during downstream chromatography. After root cause analysis, we re-examined our quenching step, redesigned the reactor agitation, and reduced that impurity below detection for the next run.

    Building a reputation for reliability never happens with flash-in-the-pan production or ignoring outlier results. We track every complaint—or compliment—through our process dashboard, whether a minor labeling error or a major delivery hiccup. In one case, a university group mapped our product behavior in a new catalytic transformation, and their data prompted changes in our recrystallization temperature profiles. As these interactions keep stacking up, we've woven small and large improvements into every new campaign.

    Environmental Responsibility in Chemical Production

    Sourcing from a dedicated manufacturing plant brings environmental consequences that we don’t take lightly. Our team has built waste minimization and solvent recycling into our daily batch process for N-Carbamoylmaleamic Acid. By choosing greener solvents and reusing cleaning water, we’ve trimmed both costs and discharge volumes. Our facility runs annual reviews and invests in both scrubber and filter upgrades to meet tightening regulations. These efforts not only address compliance, but steadily cut raw input and disposal bills—directly benefiting our long-term buyers who ask for supply security and proof of lower environmental impact.

    Looking Ahead: Growth and Challenges in N-Carbamoylmaleamic Acid Production

    As synthetic methods advance, we predict a broader market for N-Carbamoylmaleamic Acid across specialties—from medicinal building blocks to custom catalyst development. Advances in biocatalysis and green chemistry spur new applications, raising the bar for purity and traceability even higher. We expect new customers to appear from battery research, nickel and copper chelation, and functionalized coatings as the needs for well-defined amide–acid functionality expands.

    Staying ahead means ongoing investment in plant upgrades, in-process analytics, and waste stream control. Our operators receive regular training updates so they catch batch trends that may impact downstream synthesis. Regulatory compliance changes fast; by keeping core production in-house, we adapt much more quickly to regional shifts and new import/export frameworks. Our connection to our customers’ science helps us see what’s coming in the field and respond with technical advice, documentation, and practical packaging solutions.

    Final Thoughts: The Difference Manufacturer Experience Makes

    We’ve spent years facing the day-to-day challenges and small gains that come with consistently making N-Carbamoylmaleamic Acid at scale. By staying on top of synthesis, handling, QA, and logistics, a direct manufacturing approach offers advantages no middleman can match. Our deep familiarity with every production facet enables us to respond with practical, evidence-backed solutions to any technical or supply problem. As demand grows, we feel privileged to contribute the type of reliable material and field-tested experience that real-world chemistry relies on.