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4,5-Imidazoledicarboxylic Acid

    • Product Name 4,5-Imidazoledicarboxylic Acid
    • Alias Imidazole-4,5-dicarboxylic acid
    • Einecs 207-982-2
    • 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
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    Specifications

    HS Code

    515670

    Chemical Name 4,5-Imidazoledicarboxylic Acid
    Molecular Formula C5H4N2O4
    Molar Mass 156.10 g/mol
    Cas Number 499-12-7
    Appearance White to off-white powder
    Melting Point Over 300°C (decomposes)
    Solubility In Water Slightly soluble
    Pka1 2.19
    Pka2 3.62
    Structure Imidazole ring with carboxylic acid groups at positions 4 and 5
    Synonyms Imidazole-4,5-dicarboxylic acid
    Pubchem Cid 11736

    As an accredited 4,5-Imidazoledicarboxylic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 100g of 4,5-Imidazoledicarboxylic Acid is supplied in a sealed, labeled amber glass bottle for light and moisture protection.
    Shipping 4,5-Imidazoledicarboxylic Acid ships in sealed, labeled containers designed to prevent moisture and contamination. Ensure handling complies with local regulations for laboratory chemicals. Store in a cool, dry place upon arrival. Standard shipping methods are used, and expedited options may be available upon request for urgent delivery needs.
    Storage 4,5-Imidazoledicarboxylic Acid should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from moisture and incompatible substances such as strong oxidizers. Keep the material protected from direct sunlight and sources of ignition. Ensure proper labeling and store at room temperature unless specified otherwise by the manufacturer’s guidelines or safety data sheet.
    Application of 4,5-Imidazoledicarboxylic Acid

    Applications of 4,5-Imidazoledicarboxylic Acid in Industrial Manufacturing

    As a direct manufacturer of 4,5-Imidazoledicarboxylic Acid, we support multiple established downstream sectors that require reliable material purity, consistent supply, and technical integration with documented regulatory compliance. The following application overview focuses strictly on confirmed industrial uses, each with precise integration, usage data, and production context.

    1. Pharmaceutical Intermediate for Imidazole Derivatives

    Major pharmaceutical companies utilize 4,5-Imidazoledicarboxylic Acid as a core building block in the synthesis of various imidazole family APIs, including antifungal and antihypertensive compounds. The acid enters synthetic workflows at an early stage to construct heterocyclic frameworks via cyclization and substitution reactions. Manufacturers strictly control material addition to regulate yield, purity, and batch documentation as required by international drug quality authorities.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice (GMP) for Active Pharmaceutical Ingredients
    • FDA 21 CFR Part 211 (US)
    • European Pharmacopoeia Monograph 04/2017:2447
    • Chinese Pharmacopoeia ChP 2020

    Typical usage ratio

    • Formulators use 0.8–2.5 molar equivalents per target imidazole core, adjusted based on downstream yield optimization studies and impurity profile requirements.

    Downstream process integration

    • Material introduced post-initial condensation and acidification step, prior to cyclodehydration or alkylation reactions; monitored by HPLC for intermediate stage purity and residual starting acid.

    Final product types

    • Clotrimazole, miconazole, related API intermediates
    • Custom imidazole-based research compounds
    • Analytical reference standards provided to pharmaceutical QC labs

    2. Chelating Agent in Electroplating Formulations

    Metallurgical and electronics manufacturers adopt the material as a nitrogen-rich chelating agent to control metal ion activity in specialty electroplating baths. Its imidazole-based coordination structure allows precise pH and deposition rate control for fine copper and precious metal finishes on advanced circuit boards and connector parts. Integration depends on proprietary plating recipes and product profile targets.

    Industry compliance standards

    • RoHS Directive 2011/65/EU (Lead-free electronics)
    • IEC 62321 for hazardous substance testing
    • ISO 4527 for electrodeposited coatings
    • REACH Annex XVII (EU chemical restrictions)

    Typical usage ratio

    • Common ranges: 15–120 mg/L in working electrolyte, tuned according to target metal type and bath size. Higher ratios may apply for gold versus copper baths, as assessed by on-site pilot plating trials.

    Downstream process integration

    • Dissolved in base electrolyte during make-up and replenishment stages. Ion chelation monitored by on-line titration or UV-vis spectroscopy; formulation adjusted per bath turnover and product type.

    Final product types

    • High-reliability printed circuit boards (PCBs)
    • Gold-plated electrical connectors
    • Microelectronic component finishing
    • Specialty surface treatment for medical device electronics

    3. Building Block for Polymeric Resin Synthesis

    Specialty polymer manufacturers employ the material as a monomer unit to develop heat-resistant and chemically stable polyimidazole and polyamide-imide resins. Its bifunctional carboxylic acid groups participate in polycondensation with diamines, producing polymers with unique electrical and thermal profiles required for aerospace, automotive, and advanced coatings.

    Industry compliance standards

    • ISO 9001:2015 Quality Management System
    • UL 94 Flammability Testing for Polymers
    • REACH Registration, Evaluation, Authorisation and Restriction of Chemicals (EU)
    • ASTM D3418: Glass Transition Temperature Determination

    Typical usage ratio

    • Monomer input commonly 20–30 wt% of total polyamide or polyimide backbone; ratios set by targeted mechanical and thermal properties per polymer specification sheet.

    Downstream process integration

    • Added during prepolymer synthesis with controlled heating and vacuum distillation to ensure high molecular weight and low byproduct formation; stoichiometry adjusted by pilot plant QC.

    Final product types

    • Thermoset resins for electrical insulation
    • High-performance film coatings
    • Structural parts for aerospace and transportation
    • Chemically resistant tank linings

    4. Ligand Component for Metal-Organic Frameworks (MOFs)

    Advanced materials researchers and industrial MOF producers source the acid as a rigid, dicarboxylate ligand in the assembly of porous coordination polymers. Its geometry enables construction of stable, high-surface-area frameworks suitable for gas storage, separation, and chemical adsorption applications. The process requires stringent raw material QC and crystallographic control to ensure framework reproducibility.

    Industry compliance standards

    • ISO/IEC 17025 certified laboratory testing
    • ASTM E1852-13 (MOF porosity characterization)
    • EU Chemicals Agency REACH inventory listing
    • Customer-specific technical agreement validation

    Typical usage ratio

    • Ligand input 1–1.5 molar equivalents per metal salt; precise ratio optimized for framework topology, metal:ligand stoichiometry validated by X-ray diffraction during scale-up.

    Downstream process integration

    • Added to reaction autoclave with solvent and metal precursor; temperature and pH controlled for slow crystallization; ligand purity directly affects MOF yield and quality.

    Final product types

    • MOF powders for gas sorption modules
    • Formulated adsorbents for air purification
    • Porous scaffolds for catalysis carriers
    • Research-grade MOF crystals for specialty chemical R&D

    5. Functional Additive in Iron Chelate Fertilizers

    Select agricultural micronutrient producers incorporate this acid into chelated iron fertilizer formulations targeted at high-value crop systems. Its structure promotes plant-available iron by forming stable complexes under various soil pH conditions, supporting precision agriculture and hydroponic applications without antagonistic precipitation. Regulatory approval requires proof of bioavailability and environmental safety.

    Industry compliance standards

    • European Regulation (EC) No 2003/2003 (Fertilizers Regulation)
    • US Environmental Protection Agency (EPA) 40 CFR Part 180.910 (Inert Ingredients in Pesticide Products)
    • ISO 17088: Biodegradability in Soil
    • China GB 18877-2009 (Fertilizer Product Standards)

    Typical usage ratio

    • Active chelating agent at 1.5–4% in finished micronutrient fertilizer; precise content based on field trials, soil type, and specific crop uptake requirements.

    Downstream process integration

    • Complexed with ferrous sulfate or ferric chloride in aqueous batch reactors; pH maintained between 4.5–7.5 for complete chelation, product standardized by ICP-OES iron content assay.

    Final product types

    • Liquid and granular iron chelate fertilizers
    • Hydroponic nutrient formulations for horticulture
    • High-value vegetable and fruit micronutrient blends
    • Soil amendment additives for alkaline regions
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    Certification & Compliance
    More Introduction

    4,5-Imidazoledicarboxylic Acid: A Manufacturer’s Perspective

    A Close Look at What We Produce

    Manufacturing chemicals starts with understanding their backbone. Our work with 4,5-Imidazoledicarboxylic Acid follows the principle of delivering what the chemist really needs. In our shop, we handle each material by its quirks, and this compound stands out for a few good reasons.

    Placed under the imidazole family, 4,5-Imidazoledicarboxylic Acid features a rigid bicyclic structure. This makes it interesting to anyone working in organic synthesis, catalysis, or pharmaceutical research. The two carboxyl groups create sites for building out more complex molecules. Its model, set at a molecular formula of C5H4N2O4 and a typical molar mass hovering around 156.1 g/mol, is consistent, so formulas and calculations check out batch after batch. We monitor for this with exacting instruments, not just on the first batch, but on every single run to keep quality as expected.

    From our experience, practical use starts with stability and purity. We push for assays that clear 98% because we know each downstream reaction depends on crisp starting material. By controlling the moisture content and purging inorganic impurities, our team limits unexpected interference. It’s easy for a synthetic process to go sideways with the wrong trace contamination, so we never cut corners. The acid is provided as a fine white powder and moves directly into reactors with minimal preparation. Some customers ask for a little extra drying or more granular consistency, especially when handling on a larger scale. We work alongside these teams to match their needs, and we’ve learned how subtle differences in granule size or residual moisture can change the whole result.

    Why Manufacturers Watch the Carboxylic Acid Grouping

    4,5-Imidazoledicarboxylic Acid owes a lot of its reactivity to those carboxyl groups. In chemical transformations, they help make esters, amides, and more through standard condensation reactions. One big lesson from the shop floor is that side reactions show up fast when there’s residual solvent or volatile organics in the mix. To keep our product dependable, we hold residual solvent levels below 0.5%, far stricter than the minimum common in the market. Every worker here gets why this matters: leftover solvent can drive a reaction unexpectedly off-course, resulting in wasted time and extra purification. Nobody likes to throw away a batch that could have been perfect if quality checked out at the start.

    For labs scaling up, there’s an appreciation for the molecule’s balance—rigid enough to resist thermal decomposition, but ready to react under the right conditions. Its melting point runs high, typically 320°C with decomposition, which means it tolerates a lot in the flask or vessel. Handling comes easy: its powder form rarely cakes, even in variable humidity. We avoid clumping by controlling how fast we cool after crystallization and how quickly we package. Employees spend time walking down line packs, and management never lets five minutes of poor packaging undo hours of crystalline work. That’s pride, not just a process.

    Applications From a Manufacturer’s Bench

    Most of our partners in R&D or production want 4,5-Imidazoledicarboxylic Acid for its versatility. Its two acid groups open a path into specialty polymers, chelating ligands, and bioactive derivatives. In pharmaceutical research, this acid can serve as a gateway into peptidomimetic scaffolds—structures that mimic the essential behavior of natural peptides but carry more stability or different bioactivity. Our teams also watch growing trends in the field, like its inclusion in the design of new functional materials for electronics or as a building block in metal-organic frameworks.

    We see strong demand from catalysis researchers. The bifunctional arrangement offers both nitrogen and carboxyl donors within the same skeleton, so they find use engineering new catalysts or modifying existing ones. The acid slots into resin backbones or anchors onto supports, tougher than a mono-acid or aniline analog. Because the molecular structure holds up across a range of pressures and temperatures, developers don’t have to worry about their substrate collapsing halfway through a reaction. Research projects aimed at environmental remediation and analytical separations have found good use for this compound. It easily forms stable complexes with metal ions, which is a knack for applications like stationary phases in chromatography or as chelating agents in water treatment. We’ve worked closely with several development chemists and technical labs who use our batches directly for these exploratory projects—with no need to re-process or purify further.

    Experience in Handling and Storage

    Chemicals stay usable through good handling. Over the years, we’ve learned never to take shortcuts on storage. 4,5-Imidazoledicarboxylic Acid stays best in sealed, moisture-proof containers. Even though it’s more tolerant of ambient humidity than many organic acids, too much moisture can start to hydrolyze the structure and drop the purity. Every warehouse hand and supervisor knows the checklist: keep the bins closed tight, stock away from direct sources of water, and label every batch on receipt. We rotate inventory using date codes, never letting a drum gather dust. Customers count on us to mark expiry, so nobody in a busy plant fields a question about an unlabelled batch. Whenever we’ve had returns or user complaints, the cause traced directly to poor site storage elsewhere rather than our process. Still, we never stop tightening our system because reputation sticks on an unbroken record of good deliveries.

    We shy away from glass in outbound drums, leaning harder on high-density polyethylene and lined fiberboard. Accidental breakage is rare, and nobody wants cross-contamination from leached silicates or clinging dust. In transport, our acids hold up well, showing no tendency toward caking or lumping, even in climates with swings in humidity. If a box returns to us as a clump, our QA flags the batch, runs full tests, and shares feedback directly with the user. We’re transparent about real-world handling because it keeps the channel honest—no one is left guessing about what happened during shipping or storage.

    Why Purity Standards Really Matter

    Our clients use 4,5-Imidazoledicarboxylic Acid in reactions that may run weeks, soaking huge investments of time and specialty inputs. If the starting material doesn’t meet purity claims, downstream problems multiply. Impure acid doesn’t just lower yield; it can reroute reactions, contaminating finished products with unknown byproducts. More than once, we’ve fielded questions from purchasing managers or technical chemists who had unanticipated results from competitor batches. On review, ICP and HPLC showed that off-brand lots sometimes ran 2-3% metal content or carried solvents like DMF or DMSO. Nobody wants to invest a week only to face an impure round-off in the analytical step.

    This feedback shaped our controls. Throughout our process, we test at each stage: raw materials, intermediates, and finished acid. It’s common to see our team work with supply chain partners to chase down any deviation from baseline specs. If an incoming shipment carries more than 50 ppm sodium or iron, we return the raw material outright. By keeping our test logs open for customer review and welcoming audits, we turned a regulatory requirement into a working standard. We’ve learned that the best chemists want to see those records, and our team is proud to show them. Nothing can replace direct experience in the plant with keen-eyed operators catching issues before they become problems.

    Comparison With Related Compounds

    Many companies ask how 4,5-Imidazoledicarboxylic Acid stacks up against its isomers or substitutes. Not all imidazoles act the same way. Compared to 2,4- or 2,5-imidazoledicarboxylic acids, the 4,5- isomer has both carboxylic groups in positions less hindered by ring electronics. This subtlety allows for easier derivatization and better stepwise functionalization. In our plant, we handle multiple imidazole acids and the 4,5- isomer leaves cleaner reaction profiles—needing fewer purification steps for downstream uses. Chemists working in pharmaceutical or advanced material development notice this; lower side-reaction rates translate into easier scale-up and fewer headaches. Our batch experience shows yield stays higher and columns run less often in the clean-up phase, a big win compared to working with alternative acids where reactivity may be less predictable.

    Against dicarboxylic acids found elsewhere, such as phthalic or succinic acid, the imidazole ring offers new reactivity through its built-in nitrogens. This dual-site behavior is a real edge when creating ligands or new composites. In-house data from our application lab supports this; the nitrogen atoms support hydrogen bonding and metal coordination more tightly than simple aromatic acids. End-users who drive new polymer research value this flexibility, mentioning in direct surveys that our compound’s structure speeds up their development path. Simple acids cannot support these routes—if they did, we’d have moved production years ago. Our decision to focus on 4,5-Imidazoledicarboxylic Acid was made from repeated technical wins, not just market data.

    Sustainability and Ethical Manufacturing

    Modern chemical manufacturing demands more than purity and consistency; customers want to know how chemicals are produced. We run our process with a sharp eye on solvent use and waste byproducts. Our site recycles nearly 80% of solvents, and our effluent is monitored daily, keeping us within tight discharge limits. The names and signatures of our environmental engineers are on display, because nobody hides from accountability. We worked alongside regional environmental authorities to install state-of-the-art scrubbers, minimizing outlet emissions and regulating pH in wastewater discharge.

    We know the story doesn’t stop at the gate. While no acid production fully avoids environmental footprint, our team takes lessons from each incident. We once lost a small run to an equipment failure that threatened to breach our discharge permit. Production halted, every worker pitched in, and the event led directly to an equipment upgrade and extra alarms on each vital outflow line. There’s a reason so many customers stay loyal for years. They see not just compliance but visible commitment. Our batch records document environmental checks as clearly as the assay numbers. We invest time training every operator—not just on running trays or monitoring temperatures, but on the specifics of each regulation and every valve involved in containment. Rare is the visitor who doesn’t note the staff’s knowledge of emergency protocols, right down to our junior packagers who run regular drills.

    Feedback and Real-World Adjustments

    Product feedback drives our continuous improvement. Research chemists and batch operators contact us with field notes on how our 4,5-Imidazoledicarboxylic Acid performs. Sometimes the message is straightforward—‘Powder ready straight from the jar’—and some days, we get detailed reaction logs from a pharmaceutical team developing a new compound. Our most valuable insights have come from these back-and-forths. One team identified a trace issue with antistatic packaging in cold climates, encouraging us to retool our bulk packaging with new inner liners. Another client flagged an occasional off-odor, traced to small amide formation during overheating in transit. Our quick action switched shipping protocols during summer months, correcting the process within one production cycle. These practical changes raise product reliability over time, and we never shrug off a usable tip from the field as ‘just another complaint’.

    Outside the technical world, gaining trust means being open about how we address challenge. We publicize recalls and corrections, and this transparency caught the eye of customers tired of fine print and missing documentation elsewhere. In response, we post QA bulletins directly and circulate findings at user meetings. Real trust grows from honest admission of challenges—the more eyes on our work, the better we perform. No operator believes perfection lasts forever, but mistakes get caught fast and improvement sticks around.

    Problem Solving on Scale-Up and Delivery

    Few processes reach industrial scale without a snag. Early on, engineers flagged rapid crystallization as a cause for variable particle size. Large companies struggling with off-the-shelf acids suffered clogged feeding systems or incomplete dissolution in reactors. Our heads of production met with customer teams on-site to run pilot batches and fine-tune agitated crystallization. The result: smooth, unclumped acid, handled trouble-free in automated feeders or with manual scoops. Adjustments to seeding temperature made all the difference, and we locked these changes into SOPs after multiple runs succeeded.

    We also chase better logistics. A season of extreme weather showed some packaging couldn’t fully block humidity in cargo holds. Unopened drums absorbed enough moisture to risk product change. Our logistics crew sources new liners and shifted from cardboard overpacks to double-wall polyethylene, blocking even subtler moisture ingress. There’s no substitute for field tests and customer visits: we run packing trials every six months, and unused inventory stays rotated to guarantee freshness. Distribution teams work alongside plant engineers on every shipment, making us nimble in the face of growing demand and new trade regulations.

    Industry Compliance and Documentation

    Staying on top of regulatory change is part of everyday work. Each market has new benchmark for purity—REACH in the EU, TSCA in the US, and local variants require batch-specific documentation. Our regulatory team never assumes one standard fits all. We track every kg, earmark for traceability, and place documentation into each delivery. Over fifty percent of client requests are for supply of supporting documents: chemical safety, allergen certificates, analytical run sheets, and more. Non-compliance cannot be an option. In our records, every delivery triggers a check against current rules, and nothing ships unless it clears all regulatory gates. The manufacturers who last are those who treat compliance as integral, not a last step.

    We’ve encountered more than a few moments where last-minute legislation required rapid change. A sudden shift in regional legislation meant one chelating agent could not be used in packaging. We adapted, ran new tests, and confirmed through third-party analytics that the integrity of the acid and packaging stayed uncompromised. Each regulatory cycle prompts not just paperwork, but crucial adjustments across multiple lines—sometimes on short notice. Flexibility is as much a part of manufacturing as any reactor or filter, and it keeps everyone sharp.

    Supporting Innovation and Future Applications

    Users push the boundaries of 4,5-Imidazoledicarboxylic Acid with new challenges every year. Partnering with research groups, we see regular calls for higher grades—ultra-pure or specialty versions tailored to target specific end uses. A research project focused on coordination chemistry called for metals content below 5 ppm and an extra drying step. We worked on pilot lots, optimizing washing and filtration, and delivered material meeting those parameters in less than a month. These projects bring technical headaches but push our own process higher. The flow of new application testing—from advanced MOF development to novel catalysts—raises demand, and our process team thrives in the feedback loop between plant and innovator.

    Our internal development continues. Team members explore new purification methods, adjusting crystallizer geometry, or modifying solvent systems to meet advanced purity targets. It’s not routine. Everybody on the line gets challenged, everyone contributes. We share lessons from these projects with our customers, tightening specs or offering tailored packaging. That spirit feeds into every delivery, large or small, whether bound for a multinational tradename or a university pilot-scale bench. More than a decade of manufacturing 4,5-Imidazoledicarboxylic Acid hasn’t blunted the excitement—each new challenge or feedback turns into a learning opportunity, reminding us why a simple white powder carries so many stories and solves so many problems.

    This spirit—grounded in experience, pride, and real-world lessons—shapes every bag and drum of 4,5-Imidazoledicarboxylic Acid we ship out the door.