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2-Chlorobenzimidazole

    • Product Name 2-Chlorobenzimidazole
    • Alias 2-Chloro-1H-benzimidazole
    • Einecs 217-668-5
    • 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

    380363

    Product Name 2-Chlorobenzimidazole
    Cas Number 615-14-7
    Molecular Formula C7H5ClN2
    Molecular Weight 152.58 g/mol
    Appearance White to off-white solid
    Melting Point 222-225°C
    Solubility Slightly soluble in water
    Density 1.37 g/cm3 (approximate)
    Purity Typically ≥98%
    Synonyms 2-Chloro-1H-benzimidazole
    Smiles ClC1=NC2=CC=CC=C2N1
    Inchi InChI=1S/C7H5ClN2/c8-6-9-5-3-1-2-4-7(5)10-6/h1-4H,(H,9,10)
    Storage Conditions Store in a cool, dry, and well-ventilated place

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

    Packing & Storage
    Packing The 2-Chlorobenzimidazole is supplied in a 100g amber glass bottle, tightly sealed with a screw cap, and clearly labeled.
    Shipping 2-Chlorobenzimidazole should be shipped in tightly sealed containers, away from light, heat, and incompatible substances. It must be clearly labeled and handled according to hazardous material transport regulations. Appropriate documentation and safety data sheets should accompany the shipment. Ensure compliance with local, national, and international shipping guidelines for chemicals.
    Storage 2-Chlorobenzimidazole should be stored in a tightly sealed container, in a cool, dry, well-ventilated area, away from incompatible substances such as strong oxidizing agents. Keep it out of direct sunlight and sources of ignition. Use chemical-resistant containers and ensure clearly labeled storage. Handle with suitable personal protective equipment to minimize exposure during storage and handling.
    Application of 2-Chlorobenzimidazole

    Applications of 2-Chlorobenzimidazole in Industrial Manufacturing

    As a direct factory supplier, we focus on the precise chemical characteristics and functional reactivity of 2-Chlorobenzimidazole in real-world downstream synthesis. Below, we detail its proven roles across several strictly validated industrial segments, outlining compliance standards, formulation usage, integration points, and types of end products realized in each field.

    1. Pharmaceutical Intermediates for Imidazole-Based API Synthesis

    Pharmaceutical manufacturers routinely specify 2-Chlorobenzimidazole as a core intermediate when synthesizing benzimidazole-based active pharmaceutical ingredients, particularly in the production of antihistamines, proton pump inhibitors, and anthelmintic drugs. The compound functions as a key building block for nucleophilic substitution and cyclization reactions, imparting a chlorinated moiety essential for downstream customization of the heterocyclic scaffold. Pharmaceutical-grade batches follow strict impurity and residual solvent controls, with integration timing precisely aligned to API route design and validation studies to ensure traceability from starting material through to finished product release.

    Industry compliance standards

    • Good Manufacturing Practice (GMP) guidelines (ICH Q7, EudraLex Volume 4)
    • Pharmacopeias (USP, EP, JP as referenced for specific APIs)
    • FDA 21 CFR Part 211 – Finished Pharmaceuticals
    • European Registration Dossiers for starting material traceability

    Typical usage ratio

    • Controlled at 0.10 – 0.30 molar equivalents per API batch step; final ratio depends on target molecule and yield optimization from pilot to plant scale

    Downstream process integration

    • Charged during early-stage heterocycle formation; chlorinated benzimidazole reacts via nucleophilic aromatic substitution or direct amination, incorporated prior to final deprotection and purification

    Final product types

    • Active pharmaceutical ingredients for omeprazole, albendazole, mebendazole, and related benzimidazole structures
    • Bulk pharmaceutical chemical intermediates

    2. Agrochemical Formulation as Fungicide Intermediate

    Agrochemical producers utilize 2-Chlorobenzimidazole as a foundational intermediate when synthesizing systemic fungicides in the benzimidazole class. The material contributes directly to the heterocyclic core that imparts broad-spectrum activity against fungal pathogens in cereals, oilseeds, and vegetable crops. Reaction efficiency and impurity control during this production step are critical due to regulatory scrutiny of agricultural active ingredients. Analytical release of the intermediate batch ensures compliance before proceeding to downstream ring-fusion or sulfonation modifications established in registered synthesis routes.

    Industry compliance standards

    • FAO/WHO Food and Agriculture Organization pesticide specification standards
    • ISO 9001:2015-certified quality management systems
    • REACH registration for precursor importation (EU Regulation 1907/2006)
    • China MIIT – Agrochemical raw material registration

    Typical usage ratio

    • 0.20 – 0.50 molar equivalents per active ingredient batch; precise ratio tailored to synthesis path and impurity minimization objectives

    Downstream process integration

    • Added at initial cyclization stage with subsequent functionalization depending on final fungicide structure, allowing downstream formulation into microcapsules or emulsifiable concentrates

    Final product types

    • Carbendazim technical material
    • Bendazim fungicidal formulations for crop protection
    • Dispersible tablet and suspension concentrate fungicides

    3. Specialty Dye Manufacturing for Polyester and Polyamide Fibers

    Leading dye producers incorporate 2-Chlorobenzimidazole into the synthesis of high-performance benzimidazole azo and anthraquinone dyes, adapted for deep shade strength and migration resistance required in polyester and nylon textile finishing. This raw material forms a critical intermediate during diazotization or coupling reactions, ensuring stability of color complexes under both alkaline and acidic processing conditions. Full traceability and batch control during this manufacturing stage underpin quality assurance for both textile and garment industry buyers under ongoing compliance audits.

    Industry compliance standards

    • OEKO-TEX Standard 100 (product class requirement for textile auxiliaries and dyes)
    • ISO 9001:2015 process certification for pigment and dye manufacture
    • ZDHC MRSL V3.0 – Zero Discharge of Hazardous Chemicals guidelines
    • EU REACH Annex XVII for restricted dye substances

    Typical usage ratio

    • 0.05 – 0.15 mole per mole of target dye chromophore, adjusted for coupling efficiency and target shade depth

    Downstream process integration

    • Utilized during diazo condensation or ring-forming step; controls molecular branching and subsequent coupling onto chromogenic substructures

    Final product types

    • Disperse dyes for polyester yarn and filament
    • Acid dyes for polyamide fiber and wool
    • Reactive dye pre-intermediates

    4. Corrosion Inhibitor Intermediate for Oilfield Chemicals

    Producers of corrosion inhibitors select this compound as a precursor when synthesizing benzimidazole-based additives for oilfield water and hydrocarbon pipeline protection. It imparts heterocyclic structures providing strong adsorption characteristics onto metal surfaces, improving control of internal corrosion caused by acidic gas and saline environments. The compound’s integration stage critically influences downstream blending and in-field inhibitor performance, demanding rigorous batch identity, low residual chloride levels, and trace heavy-metal analysis at the precursor handover stage.

    Industry compliance standards

    • API RP 14E (Recommended Practice for Design and Installation of Offshore Production Platform)
    • ISO 9001:2015 Quality Management in chemical additives
    • ROHS 2011/65/EU directive for heavy metal restrictions
    • ASTM D2688 for corrosion inhibitor qualification

    Typical usage ratio

    • 0.08 – 0.25 mole per mole of target inhibitor molecule; ratios adjusted per batch trials for film formation and shelf life stability

    Downstream process integration

    • Reacted in early-stage benzimidazole ring synthesis, controls core structure ahead of further amination, quaternization or alkylation for solubility adjustment

    Final product types

    • Oilfield corrosion inhibitor concentrates
    • Multi-phase scale/corrosion dual-function blends
    • Pipeline treatment chemical packages

    5. Polymer Additive Precursor in Engineering Plastics

    Manufacturers of high-performance engineering plastics turn to 2-Chlorobenzimidazole as a specialized chain-modifier in synthesis of polybenzimidazole (PBI) and other polyaromatic polymers, supporting the development of materials with high thermal and chemical resistance profiles required in electronics and aerospace applications. Accurate metering at the monomer feed stage shapes molecular architecture and end-use performance, while cross-contamination with halogenated side-products is strictly monitored against process validation studies and downstream customer audit regimes.

    Industry compliance standards

    • UL 94 (flammability rating for plastics)
    • ISO 9001:2015 for high-performance plastics synthesis
    • RoHS compliance for electronics applications
    • ASTM D5207 for resin identification and purity

    Typical usage ratio

    • 0.02 – 0.07 mole per mole in copolymerization or chain-extension, adjusted based on viscosity targets and structure-property relationships

    Downstream process integration

    • Introduced in polymerization reactors prior to condensation or solid-state processing; controls molecular weight and branching for finished polymer properties

    Final product types

    • Polybenzimidazole specialty resin pellets
    • Thermoset plastic composites for aerospace, automotive, and electrical insulation
    • High-temperature-resistant molded components
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    Certification & Compliance
    More Introduction

    2-Chlorobenzimidazole Product Overview

    Real-World Value in Specialty Chemical Manufacturing

    In the chemical manufacturing world, experience exposes the strengths and challenges of specific compounds more clearly than any generic catalog entry. With 2-Chlorobenzimidazole, a substance we know in and out from years of direct hands-on production, its blend of reactivity and selectivity has shaped its place in numerous downstream applications—especially in the pharmaceutical and agrochemical sectors. Every batch carries our signature approach, hard-earned through years of process optimization. The manufacturing environment for benzimidazole derivatives presents an array of unique technical and regulatory hurdles. Through persistent research, we’ve honed our parameters with 2-Chlorobenzimidazole to support industry needs without the typical unpredictability that can dog less refined processes or less thoroughly tracked chemical lots.

    Model and Specifications—Beyond Basic Purity

    2-Chlorobenzimidazole isn’t defined by a one-size-fits-all label. In practice, we’ve seen that customers come to us with detail-rich requirements, whether that’s a focus on trace impurity profiles, batch reproducibility, or the handling and safety profile demanded by their own QA teams. Typical pharmaceutical use favors material at a purity not less than 98.5%, guided by both regulatory expectation and synthetic efficiency. On the industrial scale, a consistently low water content, controlled particle size, and minimized trace-metal content all play into the mix. These details are fine-tuned in our process, not left as afterthoughts.

    It’s these details—handling the soft, nearly white solid with minimal dusting, accurate calibration of pH in aqueous solutions, and importantly, maintaining the smallest possible trace of free chlorine or parent benzimidazole—that separate well-manufactured 2-Chlorobenzimidazole from generic offerings. What our chemists and quality experts have learned is that even small changes in process scale or raw material source can lead to drift in these parameters. Documented internal controls, frequent calibration of analytical instruments, and active communication up and down the production line make a real-world difference.

    Usage Driven by Process Experience

    In our facility, we have supported diverse uses for 2-Chlorobenzimidazole. Its most prominent role involves serving as a building block for drug synthesis, particularly as a precursor for benzimidazole-class pharmaceuticals and related intermediates. Displaying good stability and reactivity at moderate temperatures and under a range of conditions, it can be incorporated into downstream reactions such as N-alkylation or further aromatic substitution. This consistent, controlled reactivity is noticed by teams aiming to keep step yields high and isolation straightforward.

    We’ve also provided material for agricultural R&D, used to craft selective fungicidal agents and novel pesticide classes. Synthetic chemists seeking to modify the benzimidazole scaffold for new mechanism-of-action studies turn to this compound for its versatile substitution site. The chlorinated position provides a predictable point for subsequent reaction steps, which supports a wide palette of final functional group choices.

    From our vantage point, the reliability of a given batch supports predictable synthetic outcomes. With less waste due to batch variability and less troubleshooting caused by unexpected impurity profiles, our partners can focus their energy on research and scale-up rather than on routine QC headaches.

    How 2-Chlorobenzimidazole Stands Apart

    Having manufactured several benzimidazole derivatives under one roof, we know that not all products behave the same way—neither in production nor in customer hands. 2-Chlorobenzimidazole stands apart from relatives like the parent benzimidazole and N-substituted analogs not just in chemical structure but in real-world utility. The chlorinated position changes both its reactivity and handling requirements. Compared to 2-methyl or 2-nitro substitutions, the 2-chloro group can be cleanly removed or exchanged in many synthetic pathways without the need for aggressive or high-cost reagents.

    For large-scale fluoro-substitution intended to craft specialty APIs, our 2-Chlorobenzimidazole has demonstrated cleaner conversions and less tar formation compared with analogous bromo or nitro derivatives. When asked about shelf-life, our process yields a stable compound for prolonged storage under standard warehouse conditions, provided that humidity remains checked. This comes from the way our team validates every incoming raw material and monitors the thermal stability profile of each production lot.

    Not all benzimidazole compounds share the same safety profile. The chlorinated variant demands close attention to personal protective equipment and well-ventilated spaces, based on our own risk assessments and decades of practical experience. With proper training and containment systems, our staff manages this routinely during synthesis and packaging. From our manufacturing perspective, chlorinated derivatives avoid some of the more challenging regulatory and transportation issues seen with more highly halogenated or nitro-functionalized benzimidazoles.

    Quality—A Reflection of Manufacturing Practice

    Quality claims are commonplace in specialty chemical marketing, but in a real production environment, quality comes down to the lab work, recordkeeping, and a culture of ownership throughout operations. Each batch of our 2-Chlorobenzimidazole reflects input from analysts, production engineers, maintenance staff, and management. We’ve invested in multi-stage analytical checks—HPLC, GC-MS, and wet chemical assays—as well as environmental monitoring, not to meet generic standards but to maintain the level of accountability our long-term customers demand.

    Our records track the actual test results for purity, residual solvents, heavy metals, and formaldehyde. These are compelled by the regulatory positions of our pharma clients, not by an abstract regulatory minimum. Operators calibrate instruments on a twice-daily basis, not a weekly or monthly schedule, and batch managers have direct access to deviation logs. Through this chain of controls, unwanted variability is driven out at every step. This discipline, reinforced by seasoned staff who remember the days of slide rules and hand-written batch logs, pushes us to deliver more than a mere bulk chemical.

    Handling and Environmental Considerations

    Manufacturing hazardous materials shapes how a company approaches both internal safety and external responsibility. With 2-Chlorobenzimidazole, even small releases or containment failures matter. Over the years, efforts to reduce atmospheric discharge, aqueous runoff, and worker exposure have paid off—both in reduced incident rates and peace of mind. Our site spent the necessary resources on upgraded ventilation and contained transfer systems long before auditing organizations or customer questionnaires raised these issues.

    Each shift receives updated safety training, not just when new personnel start. We built spill containment and air extraction into our plant design for all benzimidazole-family chemicals, and independent audits pressure-test our response plan regularly. The effort to go beyond check-the-box compliance comes from daily familiarity with these risks in action. Preventing environmental and human harm has always justified the effort and cost—this perspective has grown stronger each year.

    Waste stream management has always presented a headache for chlorinated intermediates. The solution has evolved through incremental improvements: improved filtration before aqueous streams leave plant perimeter, solvent recovery and recycling, and segregated solid waste disposal in line with local laws. In practice, we audit our waste handling through third-party labs and treat every mishap as a learning opportunity.

    From Lab Scale to Bulk Supply—Production Insights

    Scaling up a benzimidazole synthesis like that of 2-Chlorobenzimidazole, subtle changes have dramatic consequences. Reagent concentration, temperature gradient, and even small shifts in stirring speed shift the product profile. Our early years taught us patience and close attention to every reaction run. As a result, chemists and plant operators alike have developed a keen intuition for trouble spots—signature odors, viscosity changes, or unexpected color shifts flagging process upsets.

    The knowledge is shared across shifts through logbooks, tailgate meetings, and digital dashboards. Automation brought big improvements, especially on batch reproducibility and minimization of side product levels. Even with modern controls, experienced staff keep a close eye on each process step, ready to adjust as chemistry throws new assets or curveballs. Economic pressures always exist, but we anchor every process change to product consistency, customer requirements, and the long term, not short-term savings.

    Some competitors, cutting corners to win on price, produce lots with wider impurity profiles or with batch-to-batch variation that frustrates clients. Our stance remains clear: every process step, every instrument calibration, every day’s output is overseen with the same discipline, whether it’s a small custom lot or a full container-load. That’s the only way we keep our commitments and the often-voiced trust of regular customers.

    Supporting R&D and Custom Needs

    2-Chlorobenzimidazole often drives innovation beyond established pharma and agro markets. We’ve seen requests for custom grades destined for new polymers, performance textiles, and electronic materials. The benzimidazole ring, particularly with a 2-chloro substitution, offers a foundation for molecules with distinctive thermal stability, electron transport, or binding characteristics. Every custom inquiry tells us something new about this molecule’s potential.

    Working with multidisciplinary teams—customers’ researchers, our own application chemists, supply chain managers—we’ve adapted process parameters for a spectrum of outcomes: ultra-high purity for diagnostic agents, controlled blending for pre-formulated intermediates, or fine-tuned particle size for specialty coatings. Each of these efforts reflects our dedication to supporting not just what’s routine, but what’s exploratory and challenging.

    Industry Context—Tracking Supply and Regulatory Trends

    Global demand for 2-Chlorobenzimidazole rides on both regulatory approval cycles for downstream products and broader shifts in chemical supply chains. We’ve lived through shipping crunches, raw material shortages, and the rising scrutiny on chemical traceability. As regulators push for full lifecycle documentation, our team answers with track-and-trace systems, back-to-source audits, and transparent data sharing. Our longest-standing customers measure us by our predictability in the face of external turbulence.

    Where some manufacturers sidestep reach or GHS compliance as an afterthought, our process flows presuppose code conformity from sourcing to dispatch. Every drum, every intermediate, every transport document carries the data customers want for internal audits and filings. The result? Reduced pipeline risk for those relying on us. In a legislative environment where “unknown unknowns” can jeopardize projects, our experience lets us recognize, forecast, and respond before minor glitches erupt into costly problems.

    Looking Ahead—Challenges and Opportunities

    Staying competitive and responsible as a maker of 2-Chlorobenzimidazole calls for continual learning. Globalization sharpens pressure on cost, while regulations are reevaluated with each toxicological reassessment. Our approach is simple: invest in process control, workforce education, and downstream collaboration. We’re not traders sourcing from multiple plants; everything bearing our name reflects deliberate manufacturing and stewardship. That mindset has allowed us to ride out downturns, seize chance projects, and help customers bring new products to life.

    More customers now ask about green chemistry initiatives, alternative solvents, or biocatalytic approaches. Our R&D has responded: pilot trials using greener starting materials, reduced-chlorine routes, and analysis of life-cycle impacts for each chemical step. Painstaking work, but, as with safety and quality, the reward is credibility—earned slowly, but lost in an instant if we settle for “good enough.”

    For those looking beyond basic catalog supplies, 2-Chlorobenzimidazole, carefully manufactured with rigor and experience, does more than fill a gap in a synthetic pathway. It supports reliability, innovation, and genuine trust—a perspective only direct, long-haul manufacturers can convey.