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3-Thiophenecarbonitrile

    • Product Name 3-Thiophenecarbonitrile
    • Alias Thiophene-3-carbonitrile
    • Einecs 208-912-9
    • 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

    132341

    Cas Number 3174-85-8
    Molecular Formula C5H3NS
    Molecular Weight 109.15 g/mol
    Iupac Name Thiophene-3-carbonitrile
    Appearance Light yellow to brown liquid
    Boiling Point 222 °C
    Melting Point −16 °C
    Density 1.17 g/cm³
    Solubility In Water Insoluble
    Flash Point 99 °C
    Smiles C1=CSC=C1C#N
    Refractive Index 1.589
    Storage Temperature Store at room temperature
    Pubchem Cid 237088

    As an accredited 3-Thiophenecarbonitrile factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 3-Thiophenecarbonitrile, 25g, is supplied in a sealed amber glass bottle with a secure screw cap and hazard labeling.
    Shipping 3-Thiophenecarbonitrile is shipped in tightly sealed containers, protected from moisture and light. Proper labeling and documentation are provided, with packaging compliant with chemical transport regulations. The substance is shipped via licensed carriers, commonly under UN hazard class 6.1 (toxic), and handled by trained personnel to ensure safety during transit.
    Storage **3-Thiophenecarbonitrile** should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from sources of ignition, heat, and direct sunlight. Protect from moisture, acids, and strong oxidizers. Store at room temperature and ensure proper labeling. Use chemical-resistant shelves and avoid storing with incompatible substances to maintain safety and chemical stability.
    Application of 3-Thiophenecarbonitrile

    Applications of 3-Thiophenecarbonitrile in Industrial Manufacturing

    As a direct manufacturer of 3-Thiophenecarbonitrile, we enable its integration into several advanced chemical sectors, leveraging our expertise in custom synthesis, industrial scale-up, and quality management. Below we detail major downstream application fields, including regulatory context, formulation ratios, process flow roles, and the final manufactured products seen in global markets.

    1. Active Pharmaceutical Ingredient (API) Intermediate for Thienopyridine Synthesis

    Pharmaceutical manufacturers rely on this speciality nitrile as a building block in the synthesis of thienopyridine drugs, particularly antiplatelet agents. Our material is introduced during the intermediary steps of multi-stage API synthesis, where its purity and consistency directly impact overall yield and impurity profile. The multi-step process typically handles protection, substitution, and cyclization reactions under controlled conditions, demanding strict adherence to GMP standards and traceable batch data. High-purity lots minimize byproduct formation, supporting downstream reaction efficiency and regulatory compliance in registering new molecular entities or generic pathways.

    Industry compliance standards

    • ICH Q7 (Good Manufacturing Practice for APIs)
    • USP-NF and Ph. Eur. for residual solvent and impurity limits
    • 21 CFR Part 210/211 (US FDA cGMP)
    • EMA Guidelines on process validation for APIs

    Typical usage ratio

    • Stoichiometric input (1:1 molar with heterocyclic core agents)
    • Small excess (1.05:1) to ensure full conversion, as dictated by reaction yield analysis

    Downstream process integration

    • Added at the step of nucleophilic aromatic substitution
    • Used after initial thienopyridine ring construction for nitrile introduction
    • Careful monitoring of heat profile for impurity control

    Final product types

    • Clopidogrel and prasugrel bulk APIs
    • Generic antiplatelet drug intermediates
    • Research materials for cardiovascular drug discovery

    2. Electronic Material Precursor for Organic Semiconductor Synthesis

    Electronics manufacturers use our 3-Thiophenecarbonitrile as a monomeric precursor in the development of conjugated polymers for organic semiconducting and photovoltaic devices. The material suits Suzuki and Stille coupling reactions, participating in the construction of extended pi-conjugated systems. Customers emphasize electronic grade purity, with sub-ppm levels of metal and water impurities, ensuring performance in OPV and OFET applications. Full material characterization, including residual solvent and batch homogeneity, is systematically documented to meet end-product certification requirements.

    Industry compliance standards

    • IEC 61249-2-45 (reduction of halogen content in electronic materials)
    • RoHS Directive 2011/65/EU (Restriction of Hazardous Substances in electronics)
    • Client-specific electronic grade specification sheets
    • ISO 9001:2015 certified quality management for traceability

    Typical usage ratio

    • 0.5–2.0 mole equivalents in catalyst-driven coupling reactions
    • Concentration tweaked based on polymer chain length target and device architecture

    Downstream process integration

    • Charged directly into the polymerization reactor as one of the limiting reagents
    • Dosed via solution or direct melt, depending on process specificities
    • Subsequent purification and film deposition steps rely on starting purity

    Final product types

    • Organic Photovoltaic (OPV) active layers
    • Organic Field Effect Transistor (OFET) thin films
    • Flexible display conducting polymers
    • Specialty coatings for printable electronics

    3. Agrochemical Intermediate for Thienyl-Based Herbicide Synthesis

    Agrochemical formulators integrate our product into the synthesis of thienyl-substituted herbicide actives, where it contributes a key nitrile moiety via controlled cyclization and subsequent functional group transformations. The product’s robust batch-to-batch consistency and low metal content support high-yield, low-residue output, aligning with international maximum residue limits (MRLs) and country-specific agrochemical registration demands. Detailed COAs document contaminant profiles relevant to downstream environmental testing and field use.

    Industry compliance standards

    • FAO/WHO Specifications for Pesticides
    • OECD Guidance on Pesticide Residue Analytical Methods
    • EU Regulation (EC) No 1107/2009 on plant protection products
    • ISO 17025 certified material testing protocols

    Typical usage ratio

    • 1:1 mole ratio with haloalkylating agents or functionalized thienyl rings
    • Ratios adjusted by scale-up chemists based on impurity fate studies

    Downstream process integration

    • Reacted in the early stage of new herbicide backbone construction
    • Forms the core for later chlorination and alkylation modifications
    • Material introduced as neat or dissolved, matching process safety needs

    Final product types

    • Thienyl-substituted herbicide technical concentrates
    • Finished emulsifiable concentrates or suspension concentrates for crop protection
    • Analytical standards for residue monitoring

    4. Specialty Chemical Intermediate for Dyes and Pigments

    Dye and pigment manufacturers use this nitrile in multi-step syntheses to create sulfur-containing chromophores, particularly for applications requiring strong electron-donating effects and thermal stability. It is consumed in the early stages of dye intermediate synthesis, followed by functionalization steps such as sulfonation and cross-coupling, yielding compounds suited for high-performance plastics and specialty coatings. Trace impurity monitoring is implemented to meet stringent customer and regulatory evaluations for color fastness and toxicological thresholds.

    Industry compliance standards

    • REACH (EC) No 1907/2006 for dyes and pigments
    • EN 71-3 for migration of certain elements from toys (when used in colorants for children's plastic goods)
    • ISO 9001 process control system audit traceability
    • ASTM D3723 for pigment testing

    Typical usage ratio

    • 0.8–1.2 mole equivalents in the primary chromophore build step
    • Adjusted in pilot and scale-up phases according to brightness and solubility tests

    Downstream process integration

    • Feeds the initial step in dye intermediate synthesis reactors
    • Followed by sequential sulfonation, coupling or halogenation
    • QC sampling in each batch for shade and migration compliance

    Final product types

    • High-performance polymer colorants (PBT, PET masterbatches)
    • Specialty dyestuffs for synthetic fiber application
    • Thermal transfer ribbon pigments
    • Printing ink pre-dispersions for electronics and packaging
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    Certification & Compliance
    More Introduction

    3-Thiophenecarbonitrile: A Practical Solution Rooted in Experience

    Introduction to 3-Thiophenecarbonitrile

    After years of working hands-on with heterocyclic intermediates, certain products start to stand out, not just for their job in the chemistry chain but for how reliably they fit the shifting needs of the industry. 3-Thiophenecarbonitrile has earned its place in our lineup because it combines reactivity with a manageable profile, proving itself time and again in real-world applications. Its chemical structure, rooted in thiophene with a nitrile at the 3-position, supplies a unique balance of electronic and steric characteristics. This trait lets users handle downstream synthesis steps without a fight, and it gives developers a springboard for building out sulfur- and nitrogen-containing systems.

    Quality That Stands Up To Scrutiny

    People in the lab don’t trust a molecule because a flyer says so. Trust comes from seeing clean spectra, checking chromatograms, and watching the reaction go to plan—every batch, every bottle. We have watched too many issues arise over the years from inconsistency in starting materials, from lingering solvent residues to variable impurity profiles. Our batches undergo strict quality control protocols—checking GC-MS and NMR, confirming nothing unexpected will sneak into your process downstream. That discipline pays off for customers who run kilo-scale or bigger, where separating out foreign material increases cost and frustration.

    For anyone who runs analytical or process development, seeing a reproducible retention time and tight melting point offers confidence. Our experience handling thiophene derivatives revealed early on how a little cross-contamination sabotages aromatic substitution, especially in the manufacture of pharmaceuticals or electronics. By going after trace moisture, light-absorbing byproducts, and inconsistent particle sizes, the work at the source level reduces headaches for everyone down the line.

    Specifications Tailored to Real-World Use

    Over the years, customers asked for reliable indicator specs—so we set presentation at above 98% purity, with water content typically under 0.2%. We often hear from end-users who struggle with inconsistent batches from other manufacturers. Variability in purification steps, uncontrolled crystallization, and inconsistent raw material sourcing haven’t been just stories for us—they have cost real time and shut down projects. Our specs didn’t land at random; the target comes straight from solving problems we have wrestled with ourselves. Each drum ships with clear information on batch number, manufacturing date, and test data, so audits run smoothly and project documentation clears compliance checks.

    Offering both small bottle and large drum formats answers the needs of companies scaling synthesis work from pilot to full production without switching suppliers. That simplifies approvals, paperwork, and validation at every stage of the ramp-up. Nobody likes being forced to revalidate or reformulate because a small-scale supplier disappears or supplies variations between lots.

    Practical Differences Compared to Other Key Intermediates

    Anyone who has struggled to substitute one intermediate for another will appreciate the nuance that comes from first-hand production and customer feedback. Synthetic chemists trying 2-thiophenecarbonitrile or 5-substituted analogs often discover unwanted side reactions or sluggish yields. The 3-position nitrile line hits a sweet spot: it combines aromatic sulfur heterocycle reactivity with the versatility of a cyano group, offering routes to amines, carboxylic acids, or heterocycle-fused pharmaceuticals with a controlled profile.

    One distinct edge: 3-thiophenecarbonitrile resists hydrolysis and oxidation far better than some similar categories. We’ve seen fewer breakdown problems in long storage and freight across climates—this translates to lower spoilage rates, particularly for overseas or cross-country shipments. Some competitive products, notably certain pyridine or furan nitriles, demand more rigorous refrigeration or atmosphere controls, which bumps up hidden costs for handlers and logistics teams. By balancing stability with reactivity, customers gain flexibility over both short campaigns and longer, inventory-style storage.

    Usage in Practice: Why 3-Thiophenecarbonitrile Commands Attention

    Fieldwork and process demos have shown us exactly where this compound outperforms its peers. In pharmaceutical synthesis, the sulfur atom on thiophene resonates in metabolic stability workups, imparting drug-like properties that many simple aromatic nitriles lack. Customers often draw on 3-thiophenecarbonitrile as a scaffold in anti-inflammatory and CNS-targeted molecule discovery, leveraging the aromaticity and electron sink properties of the cyano group for further elaboration—simple bioreductions and coupling processes run smoothly when impurities stay low and reproducibility stays high.

    Material science applications give a different window into its versatility. Polymer engineers value how the nitrile functional group supports diverse cyclization or chain extension approaches, opening doors to specialty resins and electro-active films. Specialty pigment producers use it for its clean, sharp signals and compatibility with a broad spectrum of organic dyes. Over the last decade, the demand from organic LED and photovoltaic firms has grown; their customers need ultraviolet and thermal stability, which connects directly to how confidently we provide the product without unwanted side-products like thiophene-2-carboxamide or ring-sulfonated residuals.

    Addressing Industry Challenges with Real-World Solutions

    Chemistry never stands still. More intense environmental and regulatory oversight puts extra pressure on every company working upstream. As a manufacturer, we've watched the cost of compliance rise. Years ago, dumping off-spec product or using rough, washed intermediates wouldn’t block a sale. Now, regulatory filings in Europe, the US, China, and Japan demand transparency about trace solvents, metal content, and even process byproducts. By rolling out in-house purification, residue removal, and trace metal analysis, our in-house approach not only matches official requirements, but also gives our partners a smoother ride when their audits hit or registration packages get assembled.

    It’s not just about the paperwork. We’ve invested in cleaner, closed-loop systems, cutting down emissions and waste. Running solvent recovery and recycling plants has taken a bite out of both environmental impact and input costs. In an age where both brand reputation and financial margin face tighter scrutiny, we consider these upgrades not as costs, but as a safeguard against disruption and fines. Experience confirms that tighter process controls deliver better material, reduce off-spec rework, and limit the frustration that comes from unscheduled plant shutdowns.

    Safety and Handling Insights From Years on the Job

    There’s no substitute for hands-on know-how with a compound day in and day out. 3-Thiophenecarbonitrile looks benign enough—typically a pale yellow to off-white solid at room temperature, with a sharp, pungent odor common to aromatic nitriles. As the team running drying ovens, blending units, and packaging lines, we have built up safeguards from dealing with nuisance dust, fume issues, and material loss. Proper extraction and local exhaust at transfer points command respect. In our experience, open bins or poorly sealed drums cause headaches—not just from workplace exposure, but from product loss and batch contamination.

    Packing the product in multi-layer, moisture-protected bags, inside steel drums for larger shipments, addresses two chronic risks: humidity pickup, leading to caking, and cross-odor contamination from neighbors on a mixed cargo shipment. We document and train on every transfer, and encourage users to work with pre-weighed, sealed bags for smaller batches to limit exposure.

    Over the years, some buyers have expressed hesitation about thiophene ring intermediates due to outdated rumors about toxicity and persistence. Real experience has shown that, managed with routine industrial hygiene and correct handling, 3-thiophenecarbonitrile runs no greater risk than other aromatic nitriles already considered standard. By working with end-users on labeling, training, and emergency practice drills, we’ve helped minimize incidents and built trust in safe use.

    Sustainability: Meeting Today’s Expectations

    The chemistry sector cannot afford to turn a blind eye to its environmental footprint. We draw on years of process optimization to minimize the organic solvent load during extraction and purification, and target maximum recovery and reuse. The switch from chlorinated to greener, alcohol-based washing agents slashed hazardous waste and cut annual disposal costs. Heat exchange and distillation upgrades have pushed energy efficiency well past the industry average, letting us maintain both throughput and product purity without ballooning our carbon output.

    We screen upstream suppliers for compliance with international labor, health, and environmental standards, targeting partnerships with vendors who share our long view. A reliable product isn’t just about what leaves the factory; it starts with the raw goods and ends with used packaging being recoverable, biodegradable, or recyclable. Our experience with repeat audits from global clients tells us that attention to each detail—right down to drum and liner design—prevents snags and underlines our credibility.

    Technical Challenges and How Field Experience Makes a Difference

    For anyone synthesizing or scaling up with 3-thiophenecarbonitrile, theory only goes so far. Real challenges show up in the plant, not on paper. Early customers alerted us to issues around solubility and particle consistency. Powder flow makes a difference in feeder hoppers, and uneven particle size causes bridging or errant dosages in automatic dispensers. Tweaking crystallization conditions and sieving carefully, we provide material that flows smoothly, with little dust and minimal clumping.

    Some applications demand particularly high purity—no heavy metal residues, negligible sulfur dioxide or amine traces. Our teams have installed and refined additional inline filters and washing steps to deliver batches that clear even the tightest specs demanded by pharma or optoelectronic clients. Repeated feedback from advanced materials researchers pushed us to ramp up our analytical capability, letting us assure customers that their downstream reactions won’t grind to a halt from an unexpected impurity.

    Temperature control in bulk synthesis has proved another challenge: overheat during isolation leads to byproduct formation and color change. Our in-house protocols monitor batch exotherms, identifying and squelching runaway reactions before they foul up an entire vessel.

    Supporting Product Development and Innovation Partnerships

    We’ve seen first-hand how close collaboration between manufacturer and user can accelerate results. Open communication about expected performance, application needs, and anticipated impurities lets our R&D team recommend small formulation tweaks or batch-matched customizations. For emerging drug programs or specialty coatings under patent, rapid scaling and predictable quality matters as customers validate pilot runs.

    By offering ongoing technical support—analytical data, troubleshooting advice, and best practices for handling and storage—we contribute real value beyond the molecule itself. Partnering on confidential development, custom purification, or alternate packaging formats, we turn what could be a commodity transaction into a joint project, smoothing the obstacles that, left alone, derail commercial timelines.

    Batch Consistency: Reliability That Comes With Scale

    Economy of scale matters, but it only helps when batch-to-batch performance stays rock solid. A facility built on modern automated lines, with tight material tracking and constant feedback from QC, makes it possible to run long uninterrupted campaigns, reducing changeovers and inefficiencies. Our facility sits atop years of process tuning, letting local and global customers trust each delivery.

    Inconsistent batches drain time and energy from both technical and purchasing teams, leading to excessive validation runs and extra paperwork. We saw a major electronics client lose weeks on qualifying materials because a small change in crystallization protocol at a competitor’s plant made their device yields collapse. Helping their technical staff trace root causes, rework failed lots, and plug new material into their process let them recover ground—demonstrating that a strong manufacturing partner goes beyond shipping a bag of powder.

    Our scale also means security of supply—multi-ton reserves, warehousing on several continents, and crisis scenarios tested by experience. Political or logistical disruptions don’t block us, because diversified sourcing and backup stock protect our customers’ timetables.

    Meeting Customer Needs Today and Tomorrow

    Decades of cumulative struggle and success shape every kilo we ship. Our product isn’t abstract—it’s the stuff people rely on to build, test, heal, and innovate. As regulations shift, technologies grow more demanding, and global pressures tighten, the real winners are the companies that combine technical mastery with hard-won operational reliability.

    Every user—chemist, engineer, project manager—wants more than a label and a COA. They expect partners who share their urgency, understand their setbacks, and deliver on their promises. By refusing to compromise on process, listening to feedback, and investing in upgrades that keep pace with market and environmental realities, we aim to be that partner for the long haul.

    3-Thiophenecarbonitrile doesn’t play a starring role in headlines, but it drives breakthroughs behind the scenes. Built by people who know its quirks, delivered to those who care about the outcome, it represents chemistry at its most useful—a tool, a building block, an everyday hero, produced with care and expertise that only years of direct manufacturing can provide.