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2-Benzimidazolecarboxylic Acid

    • Product Name 2-Benzimidazolecarboxylic Acid
    • Alias Benzimidazole-2-carboxylic acid
    • Einecs 208-343-1
    • 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

    916101

    Chemicalname 2-Benzimidazolecarboxylic acid
    Casnumber 2210-40-4
    Molecularformula C8H6N2O2
    Molecularweight 162.15 g/mol
    Appearance White to off-white powder
    Meltingpoint 285-289 °C
    Solubility Slightly soluble in water
    Boilingpoint Decomposes before boiling
    Density 1.51 g/cm3
    Pka 3.45
    Synonyms Carboxy-2-benzimidazole; 2-Carboxybenzimidazole
    Pubchemcid 2834456

    As an accredited 2-Benzimidazolecarboxylic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The 100g 2-Benzimidazolecarboxylic Acid is securely packaged in a sealed, labeled amber glass bottle with a screw cap.
    Shipping 2-Benzimidazolecarboxylic Acid is shipped in tightly sealed containers to prevent moisture and contamination. It is handled as a non-hazardous powder, following standard chemical shipping regulations. Packages include labeling per regulatory requirements and cushioning to avoid breakage during transit. Store and transport in a cool, dry place, away from incompatible substances.
    Storage 2-Benzimidazolecarboxylic Acid should be stored in a tightly closed container in a cool, dry, and well-ventilated area. Protect it from moisture, heat, and direct sunlight. Store away from incompatible substances, such as strong oxidizing agents and bases. Ensure proper labeling and keep the storage area secure to prevent unauthorized access or accidental contamination.
    Application of 2-Benzimidazolecarboxylic Acid

    Applications of 2-Benzimidazolecarboxylic Acid in Industrial Manufacturing

    As the original manufacturer of 2-Benzimidazolecarboxylic Acid, we supply this specialty raw material for distinct industrial uses that leverage its unique heterocyclic structure and chemical properties. The following application scenarios present verified integration in downstream sectors, with a focus on regulatory adherence, precise formulation, defined production steps, and resulting finished goods. All data reflect real industry practices for large-scale, high-purity operations.

    1. Active Pharmaceutical Ingredient Synthesis for Antifungal Formulations

    Pharmaceutical companies use this acid as a critical intermediate in API production, especially triazole and benzimidazole-based antifungal drugs. Its functional group enables site-specific derivatization, facilitating the design of molecules for systemic or topical medicines. Our material undergoes rigorous quality control for residual solvents and heavy metals, ensuring compliance with global pharmacopoeia demands during pharmaceutical intermediate manufacturing.

    Industry compliance standards

    • Current Good Manufacturing Practice (cGMP) as defined by US FDA 21 CFR Part 210/211
    • ICH Q7: Good Manufacturing Practice Guide for Active Pharmaceutical Ingredients
    • Ph. Eur. (European Pharmacopoeia), USP-NF (United States Pharmacopeia – National Formulary)
    • GMP compliance documentation and full traceability for regulatory submissions

    Typical usage ratio

    • 1–5 mol% relative to total target molecule in multi-step synthesis, depending on required downstream derivatization pathways

    Downstream process integration

    • Introduced during initial condensation with amines or directly amidated to build benzimidazole nucleus in dedicated reaction vessels, followed by purification via crystallization or preparative chromatography

    Final product types

    • Antifungal drug APIs: e.g., Albendazole, Mebendazole intermediates
    • Pharmaceutical intermediates for veterinary and human health applications
    • Finished bulk actives for contract manufacturing of antifungal generics

    2. Corrosion Inhibitor Additive Manufacturing for Industrial Water Treatment

    Producers of industrial water treatment chemicals select 2-Benzimidazolecarboxylic Acid as a building block for organic corrosion inhibitors due to its strong metal-chelating ability and stability under alkaline or neutral conditions. The compound acts as a key functionalized monomer for polymers and chelating agents used in closed-loop water systems, protecting steel and copper surfaces from electrochemical oxidation and scaling.

    Industry compliance standards

    • ANSI/AWWA B514: Corrosion and scale inhibitor chemicals
    • ISO 11166: Water quality — corrosion inhibitors — determination of effectiveness
    • ROHS and REACH Registration compliance for use in industrial chemical blends (EU)

    Typical usage ratio

    • 0.05–0.3% w/w in concentrated corrosion inhibitor formulations, adjusted according to system volume, metal load, and contamination risk

    Downstream process integration

    • Dispersed during aqueous blending of corrosion inhibitor concentrates, either as a pre-neutralized solution or as a salt, typically with pH buffering agents and dispersants before filtration and packaging for industrial customers

    Final product types

    • Closed-loop HVAC water inhibitors
    • Industrial chiller system additives
    • Boiler and recirculating cooling water corrosion prevention formulations

    3. Synthesis of Metal Complex Catalysts in Polymer Manufacturing

    Specialty catalyst manufacturers incorporate this acid in the synthesis of organometallic complexes for use in polymerization processes. Its benzimidazole moiety acts as a ligand for transition metals, enhancing selectivity and activity in olefin and vinyl polymerizations. The raw material’s purity minimizes side-product formation, supporting continuous operation in polymer production plants.

    Industry compliance standards

    • ISO 9001:2015 Quality Management Systems for catalyst production
    • Technical guidelines of the American Chemical Society (ACS) for reagent and catalyst purity
    • Federal environmental standards for trace metal impurities (EPA CFR 40)

    Typical usage ratio

    • 0.1–2 mol% relative to metal salt in catalyst precursor formulation, adjusted based on the intended polymerization activity

    Downstream process integration

    • Reacted in situ with transition metal salts (e.g., Cu, Fe, Ni) under inert atmosphere, forming homogeneous or supported metal complexes delivered as concentrate solutions or dispersions for polymer reactor feed systems

    Final product types

    • Polyethylene and polypropylene with enhanced property profiles
    • Specialty elastomers and engineering plastics produced via metal-catalyzed polymerization
    • Polymer masterbatch additives for further compounding

    4. UV Absorber and Stabilizer Precursor for High-Performance Coating Resins

    Coating and paint manufacturers use this acid as an intermediate to synthesize light-stabilizing and UV-absorbing agents. Its aromatic heterocycle enables conjugation with benzotriazole or other chromophores, producing customized stabilizers integrated in resin formulations for automotive, marine, and architectural coatings, thus extending the service life of painted surfaces.

    Industry compliance standards

    • ASTM D4587: Standard Practice for Fluorescent UV-Condensation Exposure of Paint and Related Coatings
    • European Directive 2004/42/EC (VOC Limits for Paints and Varnishes)
    • ISO 9001:2015 for raw material quality traceability in coatings industry

    Typical usage ratio

    • 0.2–1% w/w of resin solids in formulated UV stabilizer packages, subject to coating type, desired durability, and exposure requirements

    Downstream process integration

    • First transformed through etherification or amidation with UV-active groups, then dispersed in solvent or water-borne resin before pigment addition, milling, and application on coatings lines

    Final product types

    • Automotive clearcoats with built-in UV protection
    • Marine and outdoor architectural paints
    • Plastic coatings for consumer goods requiring light resistance

    5. Analytical Reagents for Trace Metal Testing in Environmental Laboratories

    Environmental analysis labs rely on 2-Benzimidazolecarboxylic Acid as a selective chelating agent for spectrophotometric determination of trace heavy metals in water and soil samples. Its molecular structure forms stable color complexes, enabling precise quantification in compliance with established lab protocols and environmental monitoring standards.

    Industry compliance standards

    • EPA Method 200.7: Determination of Metals and Trace Elements in Water and Wastes by ICP-AES
    • Standard Methods for the Examination of Water and Wastewater (APHA/AWWA/WEF)
    • ISO/IEC 17025:2017 Accreditation for laboratory testing

    Typical usage ratio

    • 0.01–0.05% w/v in prepared laboratory reagent solutions, optimized per sample matrix and targeted detection limits

    Downstream process integration

    • Dissolved into buffered analytical reagents for use in colorimetric or titrimetric protocols, added to sample aliquots prior to spectrometric measurement; often supplied as dry powder or pre-weighed ampoules for analytical kits

    Final product types

    • Trace metal test kits for water quality-monitoring agencies
    • Standardized analytical reagents distributed to environmental laboratories
    • Reference materials for soil and wastewater heavy metal analysis
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    Certification & Compliance
    More Introduction

    2-Benzimidazolecarboxylic Acid: Performance from a Manufacturer’s Perspective

    Direct Manufacturing Insights on 2-Benzimidazolecarboxylic Acid

    For over two decades, we have specialized in the development and manufacture of specialty benzimidazole derivatives. 2-Benzimidazolecarboxylic acid consistently proves itself in various applications, especially where thermal stability, purity, and functional versatility matter most. Unlike many intermediates that pass through multiple traders before reaching end users, the material coming from our reactors stands out for its reliability and performance within the stringent constraints set by our own labs and continuous improvement protocols.

    Production Expertise Shaping Consistency

    Producing 2-benzimidazolecarboxylic acid at scale offers few shortcuts. The process starts with carefully vetted raw materials—typically o-phenylenediamine and suitable carboxylation agents—to achieve the purity required in downstream synthesis. We monitor each stage, including temperature control during cyclization and precise pH regulation in the work-up, to ensure that the final product consistently meets both colorimetric and chromatographic benchmarks. This commitment is embedded in the workflow, not layered as quality inspection at the end.

    Experience in plant-scale production has shown subtle process optimizations can reduce impurity formation—trace residuals like aniline congeners or over-oxidized byproducts. These small details make a large difference when our clients run further reactions with our product as an intermediate. Our reactivity data originates from in-house pilot and industrial batches, not just lab-scale samples, reinforcing confidence that what customers receive matches their synthesis requirements. This approach builds trust deeper than any documentation alone could achieve.

    Grades and Specifications Rooted in Application Demands

    Specification sheets provide numbers, but real understanding comes from feedback received once materials go into the field. Our standard model—BICA-2016—carries a typical purity no lower than 99.5 percent by HPLC. The off-white crystalline appearance reflects careful drying and filtration, which impacts downstream compatibility. Particle size distribution receives attention, as inconsistency here affects dispersion and solubility, especially for companies involved in complex multi-step synthesis routes.

    We respond directly to feedback from pharmaceutical and agrochemical manufacturers, who value information about trace metal content or residual solvents over generic purity values. As a result, we continuously refine our in-process controls to suppress heavy metal ingress, ensure low chloride content, and keep sulfate below parts-per-million levels, depending on the expected use. Comprehensive COAs and adherence to industry-accepted reference standards support transparency, not just compliance.

    Usage Patterns: Proven Performance in Multiple Applications

    Most of our material ends up as a building block for more complex molecules, particularly in the pharmaceutical, crop science, and polymer additive fields. Because 2-benzimidazolecarboxylic acid integrates a stable imidazole ring system and carboxy functional group, it offers points of reactivity attractive for further derivatization—amide coupling, esterification, or as a ligand precursor, to name a few. Companies synthesizing antihistamines, antifungal agents, or corrosion inhibitors routinely cite high conversion rates and minimal byproduct formation when starting from our grades versus more variable material from open-market sources.

    Another area of increased demand has come from automotive and manufacturing sectors, particularly for use as a corrosion inhibitor component or specialty additive in high-performance polymers. The acid’s resilience at elevated temperatures and in harsh chemical environments differentiates it from less robust aromatic analogues. Customers in polymer modification report extended service life and improved resistance in finished goods when relying on starting material from our process lines. We attribute these results to the removal of problematic impurities, whose presence—even at trace levels—can trigger side reactions and compromise end-use performance.

    Comparison to Other Benzimidazole-Based Products

    On the surface, all benzimidazole derivatives may seem interchangeable. In practice, performance gaps can be significant. 2-benzimidazolecarboxylic acid shares its backbone with benzimidazole itself, but introducing the carboxylate group at the second position fundamentally alters both reactivity and solubility. While benzimidazole is favored for direct heterocycle integration or simple salt formation, our acid variant better enables custom coupling and can serve as an anchor point for introducing further complexity into a molecule.

    Other products such as 2-methylbenzimidazole might offer hydrophobic modification but lack the polar functional group that allows for enhanced coordination, hydrogen bonding, or tuning of solubility. 2-benzimidazolecarboxylic acid stands apart through its dual capability: it can engage in both acid-base reactions and act as an effective chelating agent. This flexibility has proven decisive for industrial customers whose process windows demand subtle but meaningful control over molecular interactions.

    The differences become even more apparent in specific end-use scenarios. For example, clients formulating dye intermediates or specialty ligands value the clean conversion and minimal color contamination achieved with our carboxylic acid, compared to those using less-refined or non-acidic analogues. In the field of pharmaceuticals, the distinction between our material and a simple unsubstituted benzimidazole extends to improved yield in API synthesis and lower impurity carryover, factors which affect downstream purification costs and overall process viability.

    End-User Feedback and Real-World Implications

    Feedback from customers runs deeper than numerical specification. In active pharmaceutical ingredient synthesis, process reliability and clean reaction profiles directly affect batch outcome and yield. Companies using our acid report higher consistency in batch-to-batch results, even on large scale, and reduced need for recrystallization or costly downstream purification procedures. Manufacturing challenges like moisture sensitivity get addressed upstream, by ensuring material leaves our site with moisture content controlled to less than 0.1 percent, instead of relying on user-site handling to correct shortcomings.

    Polymer manufacturers benefit from the acid’s ability to participate in controlled polymerization reactions, introducing specific chemical functionalities that persist through extrusion and molding cycles. Because our process consistently delivers minimal residual catalyst or starting material, the risk of adverse reactions or unwanted color changes during high-temperature processing drops sharply. These details—less obvious to those unfamiliar with large-scale production—significantly lower product rejection rates at our customers’ sites.

    Safety and Handling Practices—Learned from Experience

    Continuous industrial exposure to 2-benzimidazolecarboxylic acid has honed our approach to material handling and storage. The acid exhibits moderate hygroscopicity, so we have implemented vacuum-sealing and inert-atmosphere packaging as standard, reducing both clumping and hydrolysis during transit. This attention to packaging integrity comes directly from early experiences with substandard packaging leading to product waste and customer dissatisfaction.

    Long-term studies conducted in our facilities confirm the material remains stable for at least two years under recommended storage conditions, with negligible degradation observable through HPLC or NMR analysis. Handling guidelines, provided to every user, focus on identified risk points—dustiness during transfer, mild irritancy on skin contact—and documented protocols for safe disposal and environmental compliance. Our own staff work with these protocols daily, lending extra assurance to users.

    Supply Chain Assurance—Direct from Manufacturer

    As a primary manufacturer, control over each stage of supply allows for continuous improvement, not just on paper, but in delivered quality. Utilizing batch traceability, we can align any customer complaint or inquiry with specific changes in process or raw material batches, helping us troubleshoot proactively and prevent repeat issues. Unlike resellers or distributors who may lack visibility into upstream process variables, we can provide authentic answers to origin-tracing or root-cause analysis requests. This connection streamlines problem resolution and builds real confidence between users and producer.

    Regular investment in process automation, predictive maintenance, and environmental protection measures has reinforced the stability of our output. During outbreaks of global supply chain disruption or feedstock scarcity, retaining our own warehousing and logistics arms has shielded customers from stockouts or the need for makeshift substitutions.

    Commitment to Sustainability: Not Just a Statement

    Greater attention to the environmental impact of chemical manufacturing has driven us to adopt closed-loop solvent systems and minimize energy consumption in core synthesis steps. For 2-benzimidazolecarboxylic acid, this means solvents are reclaimed, water usage reduced, and reactor cleaning practices updated to avoid generation of persistent organic pollutants. Our continuous emission monitoring tracks volatile outgassing, while ongoing partnerships with downstream users support collection and responsible disposal of any off-spec or expired product. All improvement stems from practical hurdles encountered within the factory, not mandates alone.

    Across the past five years, these incremental modifications have lowered our per-ton emissions by over thirty percent, as verified by independent third-party audits. Participating in end-user certification programs and lifecycle assessments has helped us better align our process improvement targets with genuine market expectations—not just regulatory compliance, but the concrete needs voiced by clients focused on their own environmental stewardship.

    Research Collaboration and Open Dialogue

    Our experience in manufacturing 2-benzimidazolecarboxylic acid has provided us with extensive insight into real-world challenges, from improving scale-up efficiency to minimizing batch variability. Open collaboration with users—often involving exchange of technical data, method development, or direct feedback on pilot plant runs—continues to shape the way we refine both the process and final product specification. Instead of relying solely on internal targets, we benchmark new developments against externally validated analytical techniques and user-submitted application studies.

    Engagement through technical workshops and joint process trials creates a feedback loop that benefits both sides. For example, pharmaceutical partners have identified that ultra-low trace metal content directly impacts catalyst turnover in heterocycle synthesis; in response, we incorporated additional chelation and filtration steps, reducing even sub-ppm contaminants to negligible levels. This practical dialogue—rooted in on-site visits, detailed process reviews, and collaborative troubleshooting—has become a defining feature of how we advance both product and manufacturing reliability.

    Advancing Industry Standards: From Experience to Implementation

    Manufacturers occupy a crucial position in shaping how specialty chemicals like 2-benzimidazolecarboxylic acid move from lab discovery to industrial utility. Our daily operational choices—selecting raw materials, optimizing reactor conditions, improving segregation during storage—have a ripple effect on both user confidence and market reputation. Over time, accumulated experience forms an industry standard that others may follow or reference.

    The success stories told back to us by users—higher yields in complex syntheses, fewer downstream decontamination headaches, clearer application routes—matter more than abstract marketing claims. Each customer problem solved becomes a reference point for ongoing quality improvement. Our direct-from-manufacturer perspective prioritizes deep product knowledge, traceability, and responsive support, building the long-term partnership approach that benefits everyone involved in the supply chain.

    Looking Ahead: Meeting Enhanced Market Demands

    While 2-benzimidazolecarboxylic acid remains an established intermediate, end-user demands continue to push the envelope for even higher purity, tighter specification, and improved environmental compatibility. Requests for greener synthesis pathways and solventless process alternatives have prompted us to diversify pilot studies, seek new catalyst systems, and participate in industry consortia exploring better options. These are not speculative research projects, but targeted improvements that respond to immediate requests from customers balancing regulatory pressure and economic realities.

    Strength in direct manufacturing comes from our ability to react quickly to these demands, supported by regular investment in both people and process technology. Feedback from the ground—factory workers, process engineers, technical managers—guides each improvement. As new applications emerge and the demands for transparency and accountability grow, we anticipate continuing to elevate both product and process, using lessons learned inside our own gates as the foundation for progress.

    Conclusion: Why Source Directly from a Manufacturer

    Working with a skilled chemical manufacturer yields advantages that extend beyond the standard product listing. Direct access to knowledge about how 2-benzimidazolecarboxylic acid behaves under real-world conditions provides clarity that literature or third-party handlers often cannot deliver. The iterative cycle of feedback and continuous improvement is built on relationships and technical detail, not just transactions. For users with specialized requirements, complex syntheses, or uncompromising quality needs, this direct approach to manufacturing sets the stage for outcomes that meet today’s—and tomorrow’s—challenges.