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2-Amidinothiophene Hydrochloride

    • Product Name 2-Amidinothiophene Hydrochloride
    • Alias 2-Amidinothiophene HCl
    • Einecs 244-373-4
    • 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

    419736

    Cas Number 19274-66-9
    Molecular Formula C5H7ClN2S
    Molecular Weight 178.64 g/mol
    Appearance White to off-white crystalline powder
    Melting Point ≥ 220°C (decomposes)
    Solubility Soluble in water
    Purity Typically ≥ 98%
    Storage Conditions Store at room temperature, tightly sealed
    Synonyms 2-Thiophenecarboxamidine hydrochloride
    Chemical Structure Thiophene ring with amidine group at position 2, hydrochloride salt
    Ph 1 Solution Approximately 4.0-6.0
    Boiling Point Decomposes before boiling
    Ec Number 242-203-1

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

    Packing & Storage
    Packing 2-Amidinothiophene Hydrochloride is supplied in a sealed amber glass bottle, 5 grams, labeled with hazard warnings and chemical details.
    Shipping 2-Amidinothiophene Hydrochloride is shipped in securely sealed containers to prevent moisture and contamination. Packaging complies with chemical safety regulations, and labeling includes hazard information. The shipment is handled under controlled conditions, typically at room temperature, using certified couriers to ensure safe, compliant delivery to laboratories or authorized recipients.
    Storage 2-Amidinothiophene Hydrochloride should be stored in a tightly sealed container, protected from moisture and light. It should be kept in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizing agents. Avoid exposure to air and ensure the container is clearly labeled. Store at room temperature unless otherwise specified by the manufacturer.
    Application of 2-Amidinothiophene Hydrochloride

    Applications of 2-Amidinothiophene Hydrochloride in Industrial Manufacturing

    We supply 2-Amidinothiophene Hydrochloride directly from our proprietary synthesis processes, ensuring consistent product quality for advanced formulation needs. Below, we provide an in-depth review of its established downstream industrial applications with key technical usage details and integration guidance.

    1. Active Pharmaceutical Ingredient (API) Intermediate for Thienopyridines

    Pharmaceutical manufacturers utilize 2-Amidinothiophene Hydrochloride as a critical building block in the synthesis of thienopyridine derivatives, including key antiplatelet agents. Its amidine functionality enables regioselective cyclization under controlled conditions. Processes integrating this material must ensure traceability and batch purity to support validation efforts in regulated API synthesis. It enters the sequence after nitration of thiophene derivatives and before ring closure to assemble pharmaceutical scaffolds, supporting downstream glycosylation or functional group installation for final API formation.

    Industry compliance standards

    • Current Good Manufacturing Practice (cGMP), ICH Q7 guidelines
    • United States Pharmacopeia (USP) for starting materials
    • EMA Guideline on the Chemistry of Active Substances
    • Traceability under Drug Master File (DMF) requirements

    Typical usage ratio

    • 2-8% by mol in step-growth synthesis; actual ratio determined by process scale and target yield, subject to active impurity control and necessity for stoichiometric balance with the coupling partner

    Downstream process integration

    • Added at the intermediate building block stage, following prior functionalization and preceding final ring closure or side-chain introduction in batch or continuous processing reactors

    Final product types

    • Antiplatelet drugs (e.g., clopidogrel intermediates)
    • Synthetic pharmaceutical actives with thienopyridine cores

    2. Advanced Dye and Pigment Synthesis

    Chemical companies form stable, high-color-density sulfur-containing azo dyes and heterocyclic pigments by introducing 2-Amidinothiophene Hydrochloride at the nucleophilic coupling stage. Its unique reactivity plays a crucial role in heterocycle extension, improving colorfastness and shade depth in specialty pigments. Vessel charging occurs during the diazotization or condensation phase where the amidinothiophene acts as a heteroaromatic donor. Dye formulators precisely adjust proportions to achieve target chroma while maintaining compliance with textile and ink industry regulatory demands.

    Industry compliance standards

    • OEKO-TEX® Standard 100 (textile safety)
    • REACH Regulation (EC) No 1907/2006 - Annex XVII
    • ETAD (Ecological and Toxicological Association of Dyes and Organic Pigments Manufacturers) code of practice
    • EN 71-3 for colorants in toy applications

    Typical usage ratio

    • 0.5–3.5% by weight relative to total dye mass, adjustable to color depth and matrix reactivity; higher dosage may necessitate additional washing or purification to comply with migration limits

    Downstream process integration

    • Introduced following initial diazonium formation, upstream of azo-coupling or condensation; subsequent reaction proceeds under temperature- and pH-monitored conditions for purity and color consistency

    Final product types

    • Sulfur-containing azo dyes for textile printing
    • Specialty pigments for industrial coatings and plastics
    • Printing ink colorants meeting toy and children’s product requirements

    3. Building Block for Heterocyclic Agrochemical Synthesis

    Agrochemical R&D facilities integrate 2-Amidinothiophene Hydrochloride as a precursor in the multi-step construction of heterocyclic pesticide and fungicide molecules. Its selective reactivity facilitates scaffold assembly for products targeting specific crop protection challenges. Access at the amidine-containing cyclization stage supports tailored property optimization. Addition point varies according to target molecule but typically follows thiophene activation, enabling formation of fused or substituted heterocycles under inert or semi-oxidative environments. Consistent quality control and compliance oversight is mandatory for regulatory submission and product stewardship.

    Industry compliance standards

    • FAO/WHO International Code of Conduct on Pesticide Management
    • US EPA 40 CFR Part 158 (Pesticide Registration Data Requirements)
    • OECD guidelines for the testing of chemicals
    • ISO 9001:2015 for process quality and traceability

    Typical usage ratio

    • 3–10% by mole in the key cyclization or condensation step, adjusted for yield, substrate compatibility, and environmental handling considerations in pilot or commercial scale

    Downstream process integration

    • Charged post-halogenation or after preliminary group introduction, enabling final heterocycle formation by catalytic or base-mediated cyclization in closed reactor systems

    Final product types

    • Pre-formulated pesticide intermediates for downstream formulation
    • Active fungicidal compounds with thienopyridine or related backbones

    4. Functionalized Material Synthesis for Electronic Applications

    Manufacturers of organic semiconductors and advanced functional materials utilize 2-Amidinothiophene Hydrochloride to construct conjugated systems with tailored electronic properties. The product’s electron-rich structure is incorporated at the precursor assembly stage, optimizing charge transfer characteristics for thin-film or printed electronics. Addition occurs after substrate functionalization and prior to oligomerization or polymerization, ensuring mechanistic fidelity required for high purity and device performance. Strict sourcing and lot testing under electronics industry protocols underpin consistent material behavior in subsequent device fabrication.

    Industry compliance standards

    • IEC 60747 for semiconductor device quality
    • RoHS Directive 2011/65/EU for hazardous substance limits
    • IPC-1752A for electronics material reporting
    • ISO 14644 for cleanroom compatibility in electronic component manufacture

    Typical usage ratio

    • 1–6% by weight in precursor blends, depending on target conductivity and film morphology; minor modification possible based on process temperature and atmospheric control

    Downstream process integration

    • Added to monomer solution or precursor batch prior to initiating polymerization or thin-film deposition; integration often occurs in automated closed reactors or under inert gas protection

    Final product types

    • Organic field-effect transistors (OFETs)
    • Printable conductive inks for flexible electronics
    • Low band-gap co-polymers deployed in optoelectronic devices
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    Certification & Compliance
    More Introduction

    Introducing 2-Amidinothiophene Hydrochloride: A Reliable Building Block in Advanced Chemistry

    From Synthesis to Application: What Experience Has Taught Us About 2-Amidinothiophene Hydrochloride

    Our direct experience in producing 2-Amidinothiophene Hydrochloride has shown that solid reliability can only be achieved by careful adherence to the fundamentals. This compound, with the chemical formula C5H7ClN2S, stands out for its high purity, stable physicochemical traits, and distinctive amidine and thiophene functionality. As producers who've worked closely with research chemists, pharmaceutical developers, and materials scientists, we recognize not just the technical needs but the real-world expectations for reproducibility and batch-to-batch consistency.

    Physical Qualities Rooted in Control and Expertise

    2-Amidinothiophene Hydrochloride typically presents as a white to off-white crystalline powder, which stems directly from stringent crystallization parameters during production. Tight control over water content and impurity profiles prevents color shifts and unexpected reactivity. This care delivers a material that dissolves easily in water and polar solvents, which reflects in clear reaction solutions and efficient processing steps, something not always guaranteed with less refined manufacturing practices.

    A lot of new inquiries focus on the purity range. Years of process development have enabled routine production of the compound at a minimum 98% HPLC purity, meeting rigorous analytical standards common in both medicinal and industrial labs. Tracking down and minimizing trace impurities, such as related thiophene derivatives or inorganic salts, protects downstream reactions from yield losses or unwanted by-products. This detailed attention also supports regulatory submissions for companies using our product in regulated settings.

    Where Our Customers Start: Synthesis and Discovery

    Most repetitive requests for 2-Amidinothiophene Hydrochloride stem from research groups and formulation chemists looking to push the boundaries of heterocyclic chemistry. The molecule’s thiophene core serves as a gateway to a library of analogs—pyridothiophenes, fused aromatic rings, and even polymer building blocks—because its chemical reactivity reliably permits a broad spectrum of substitutions and coupling reactions.

    We have seen practical advantages first-hand in synthetic explorations for both pharmaceutical intermediates and advanced material design. In the pharmaceutical sector, this compound often anchors the synthesis of molecules targeting kinase inhibition and protein binding. Amidine functionality, coupled with the sulfur-containing aromatic ring, encourages both strong binding affinity and improved solubility. Chemists appreciate that our batches return reproducible results in parallel syntheses and scale-up runs, reducing batch-failure rates linked to starting material instability or purity issues.

    Collaborations with academic and commercial laboratories reveal additional routes where 2-Amidinothiophene Hydrochloride features as a precursor for dyes, agrochemicals, and specialty materials. Its practical stability at room temperature, moderate hygroscopicity, and straightforward handling characteristics align well with workflows requiring long bench times or stepwise reaction setups.

    Production Insights: Quality at Scale

    From the manufacturer’s perspective, 2-Amidinothiophene Hydrochloride’s value only shines after process optimization takes root throughout scale-up. Early laboratory-scale syntheses highlighted critical bottlenecks, like side-product formation at elevated temperatures and inconsistent crystallization yields. Over time, iterative process redesign corrected both, leading to reliable kilogram-level batches where purity targets consistently exceed customer expectations.

    We repeatedly field technical questions about particle size and lot homogeneity. Granulometry impacts dispersion in reaction setups and filtration efficiency, particularly for automated process lines or continuous reactors. Fine powder forms can generate dust, leading to operator exposure concerns if containment is lacking; on the other hand, larger crystals settle more readily and simplify handling and dosing. Our team intentionally tailors batch parameters for a balance between manageable flow properties and easy dissolution. Production data confirm that these physical features support almost universal compatibility with standard lab and pilot-scale equipment, reducing unexpected delays in customers’ process validation phases.

    Comparisons That Matter: How This Product Stands Apart

    Many purchasing teams wrestle with the decision between 2-Amidinothiophene Hydrochloride and related molecules, like unsubstituted amidinothiophene, or products containing different counterions—for example, 2-Amidinothiophene sulfate or acetate salts. Each variant changes solubility, chemical reactivity, and downstream process requirements. Hydrochloride salts like ours generally provide superior water solubility and less batch-to-batch pH drift in solutions, a feature that drives more predictable performance in sensitive coupling reactions.

    Alternatives lacking the amidine group, or featuring modifications at the ring, behave quite differently under synthetic and biological screening conditions. We have seen clear evidence that omitting the amidine lowers target binding or reactivity, reducing the desirability for many target-molecule syntheses. Experience also shows hydrochloride versions withstand longer transportation and storage periods, a clear logistical win for international supply chains and longer-term inventory management.

    Discussions with clients underscore the benefit gained from material traceability: our in-house personnel track upstream reagent purity and document batch origins through validated quality management systems. This vigilance matters when researchers submit regulatory filings or initiate late-stage clinical manufacturing, as even minor variation in starting material quality can sideline entire development timelines.

    Working Safely: Practical Handling and Storage Lessons

    2-Amidinothiophene Hydrochloride does not pose extraordinary handling challenges for experienced lab or production teams. The crystalline powder resists caking, absorbs minimal moisture under dry storage, and avoids forming dust clouds when processed using appropriate containment. Storage at ambient temperature, in sealed polyethylene liners or HDPE drums, limits environmental exposure and keeps the product within specified moisture and purity windows.

    Tried-and-tested procedures for weighing, transfer, and charging have evolved from day-to-day feedback in our production rooms. Avoiding contamination calls for good manufacturing practice—no shortcuts here. Material transfer in closed systems, antistatic precautions, and routine glove usage all safeguard operator health and minimize product loss, lessons learned only through years of hands-on practice. Residue-free transfer to reactors and containers results from picking consistent particle sizes and ensuring interior drum surfaces remain free from scratches or static build-up, limiting unnecessary cleanouts and waste.

    Regulatory and Analytical Confidence

    Clients rely on our full in-house analytical support, with each batch documented by up-to-date Certificate of Analysis including HPLC, NMR, and residual solvent profiles. Occasionally, tailored analytical testing (such as residual heavy metals or non-routine impurity screens) is necessary for highly regulated uses. Ready access to technical data shortens client development cycles and supports clear submissions to authorities. Our record keeping helps pinpoint not only product origin but the fine details of each individual run, building the sort of trust that comes only from repeatedly delivering on critical specifications.

    We have learned, sometimes the hard way, that even minor specification gaps or inadequate documentation can set off rounds of technical queries and derail production schedules. Proactive engagement with customers to clarify specification needs and documentation requirements helps avoid these setbacks, maintaining strong project momentum on both sides.

    Supporting R&D and Innovation

    Feedback loops from customers drive much of our improvement. Synthetic chemistry groups return with sometimes unexpected insights—unusual color changes, rare solvent incompatibility, or unique utility in constructing new molecular targets. Listening to these partners shaped our efforts in batch improvement, supply logistics, and technical support. A chemist recounting a challenging solid-phase coupling run that succeeded with our product, thanks to its rapid dissolution in mixed organic phases, stands as an example of how small differences in product quality translate directly to project breakthroughs—or, sometimes, setbacks avoided entirely.

    The needs of researchers often change faster than the standard offerings of most chemical suppliers. Regular conversations with academic labs led us to develop specialized pack sizes, rapid shipping routes for time-sensitive projects, and alternate documentation to satisfy grant requirements on compound origins or environmental impact. These adaptations emerged not from abstract protocol, but from ongoing experience meeting the minute, shifting priorities of a diverse research community.

    Challenges in the Market and Our Response

    The specialty chemical landscape grows ever more crowded, with traders and intermediaries advertising similar materials. Through regular audits and close client relationships, we learned the value of establishing direct lines from production to the end user. A direct communication channel means clients benefit from faster troubleshooting, real-time updates on batch availability, and transparency in documenting compliance for their own stakeholders. Relying on a tightly monitored supply chain reassuringly removes anxieties over product origin and accumulated intermediaries.

    We have watched quality standards evolve, with procurement teams demanding independent verification, continuous process monitoring, and real evidence of robust change management systems. To meet these expectations, our in-house technical team maintains a dialogue with purchasing, regulatory affairs, and supply chain personnel within client organizations. Shared access to in-depth batch history and manufacturing detail supports both scientists and regulatory teams alike as global quality requirements advance.

    Sustainable Manufacturing: More Than a Slogan

    The rise of sustainability as a business priority has shifted more of our production planning. Feedback from clients on solvent choices, by-product minimization, and energy use has prompted small but significant changes in standard operating procedures. Selection of water-based crystallization steps, in-place solvent recovery, and returnable shipping containers reflects these lessons in every batch. We observe increased demand for life-cycle documentation and detailed declarations on hazardous waste minimization; our role as a manufacturer places us on the frontline of these ever-tightening requirements, rather than merely responding after the fact.

    Direct experience shows that sustainable manufacturing not only reduces environmental impact but delivers measurable cost efficiencies: reduced solvent waste cuts both disposal expense and regulatory exposure, while closed-loop process water reuse supports both cost savings and simple compliance tracking. Constant dialogue with environmentally focused clients introduced process alternatives that we wouldn’t have otherwise considered, expanding not just our technical knowledge but, over time, the repeatability and resilience of our production lines.

    Looking Forward: Building on What Works

    Decades in chemical manufacturing reveal that responsive production disciplines and durable relationships unlock the full practical value of products like 2-Amidinothiophene Hydrochloride. Delivering a product that retains these benefits batch after batch, across multiple years and thousands of kilos, means embedding the hard-earned lessons of daily work into every stage of production, analysis, and customer support. The real-world outcomes speak for themselves—lower project failure rates, fewer changeover headaches, and tangible confidence in moving from the lab bench to plant scale without unwelcome surprises along the way.

    Whether in core synthetic pharmaceutical development, specialty materials research, or novel agrochemical efforts, those using our product tell us repeatedly: reliability, candid technical communication, and documented quality beat hollow marketing claims and cut-price copycats every single time. Advanced products like 2-Amidinothiophene Hydrochloride become enablers of breakthrough innovation only when supported by this shared expertise and a commitment to genuine partnership.

    Conclusion: Drawing on Direct Experience

    After years of production, supply, and support, we know the difference between shipping just another catalogue compound and delivering a material ready for the challenges of modern discovery. 2-Amidinothiophene Hydrochloride stands as more than a reagent; it represents the sum of experience, feedback, and persistent quality demanded by those on the front lines of chemical research and manufacturing. We remain committed to supporting each new application, learning from every collaboration, and keeping the lines of communication open for the next generation of innovators. As processes and regulatory standards continue to advance, our aim centers on not only meeting those demands but anticipating them, with every batch that leaves our plant.