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Tosyl Cyanide

    • Product Name Tosyl Cyanide
    • Alias p-Toluenesulfonyl cyanide
    • Einecs 217-226-5
    • 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
    Specifications

    HS Code

    143284

    Chemical Name Tosyl Cyanide
    Cas Number 3486-35-9
    Molecular Formula C8H7NO2S
    Molecular Weight 181.21 g/mol
    Appearance White to pale yellow solid
    Melting Point 92-95°C
    Boiling Point Decomposes before boiling
    Solubility Slightly soluble in water; soluble in organic solvents
    Density 1.32 g/cm³
    Smiles CC1=CC=C(C=C1)S(=O)(=O)C#N
    Inchi InChI=1S/C8H7NO2S/c1-7-3-5-8(6-4-7)12(10,11)9-2/h3-6H,1H3
    Storage Conditions Store in a cool, dry place, tightly closed; keep away from light

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

    Packing & Storage
    Packing Tosyl Cyanide is packaged in a sealed 25-gram amber glass bottle with a tamper-evident cap and hazard labeling.
    Shipping Tosyl Cyanide should be shipped in tightly sealed containers, protected from moisture and physical damage. It must be labeled according to hazardous materials regulations and transported as a toxic, irritant, and potentially flammable chemical. Ensure shipment in compliance with relevant DOT, IATA, and IMDG guidelines, with access to safety documentation.
    Storage Tosyl cyanide should be stored in a tightly sealed container, away from moisture and light, in a cool, dry, and well-ventilated area. It should be kept separate from acids, bases, oxidizing agents, and water. Properly label the storage container and ensure it is stored in a chemical storage cabinet designed for toxic or reactive compounds. Use secondary containment to prevent spills.
    Application of Tosyl Cyanide

    Applications of Tosyl Cyanide in Industrial Manufacturing

    Tosyl cyanide plays an essential role as a reactive intermediate in multiple chemical processing industries. With precise reactivity and established regulatory acceptance, our manufacturing expertise ensures consistently high-quality material suitable for specialized downstream use. Below, we detail real-world applications across several industry segments, reflecting genuine demand and compliance requirements from global buyers.

    1. Pharmaceutical Active Ingredient Synthesis

    Pharmaceutical manufacturers incorporate tosyl cyanide as a selective cyanation agent in the preparation of complex small molecules and APIs with nitrile functionalities. The reagent enables key carbon–carbon bond-forming transformations during multi-step synthesis, including in heterocycle construction and late-stage diversification of lead compounds. We supply bulk volumes with documented production records to support full traceability, fulfilling requirements for commercial and clinical process routes.

    Industry compliance standards

    • Current Good Manufacturing Practice (cGMP) (ICH Q7, US FDA 21 CFR Part 211)
    • European Pharmacopoeia (Ph. Eur.) monographs for APIs containing nitriles
    • ICH Guideline Q3A/B for impurities and residual solvents
    • REACH Regulation (EC) No 1907/2006 for raw material registration

    Typical usage ratio

    • Applied at 1–2 molar equivalents per target substrate; exact ratio determined by stoichiometry, purity of intermediates, and pathway yield requirements

    Downstream process integration

    • Used during mid- to late-stage reaction steps, following initial backbone setup and prior to protective group removal or salt formation; aligns with automated dosing and closed-system handling for hazardous reagents

    Final product types

    • Active pharmaceutical ingredients (APIs) with aromatic or aliphatic nitrile motifs
    • Specialty drug intermediates for contract manufacturing organizations (CMOs)
    • Precursor chemicals for anticancer and antiviral compounds

    2. Agrochemical Synthesis: Herbicide and Pesticide Precursors

    Major agrochemical producers use tosyl cyanide in the construction of nitrile-based scaffolds for herbicides, insecticides, and fungicides. The reagent's reliable cyanation enables the creation of substituted aromatic or heterocyclic compounds integral to advanced crop protection agents. We support multi-tonne deliveries under documented quality control, critical for the synthesis of bulk actives in regulated supply chains.

    Industry compliance standards

    • FAO/WHO Joint Meeting on Pesticide Specifications (JMPS) technical material criteria
    • ISO 9001:2015-certified quality management system
    • REACH Annex VII–VIII registration and compliance for European market access
    • Global Product Strategy (GPS) hazard communication for raw materials

    Typical usage ratio

    • Typical feed ratio from 1.0 to 1.5 molar equivalents relative to aromatic halide starting material; batch size and purification efficiency determine actual scale

    Downstream process integration

    • Introduced after chlorination or halogenation steps in multi-step synthetic pathways; integrated into jacketed reactors with monitoring for cyanide byproducts

    Final product types

    • Nitrile-based herbicides, such as bromoxynil or ioxynil derivatives
    • Aromatic nitrile pesticide intermediates
    • Specialized active ingredient (AI) precursors for formulation plants

    3. Fine Chemical Synthesis: Specialty Intermediate Manufacture

    Contract manufacturers and fine chemical producers leverage tosyl cyanide in targeted syntheses requiring precise nitrile group introduction onto aromatic or aliphatic skeletons. The reagent provides a clean route to high-purity intermediates essential for thermoplastic additives, electronic chemicals, and UV absorbers. Our facility supports packaging flexibility and full analytical traceability to meet custom process needs.

    Industry compliance standards

    • ISO 9001:2015 certification
    • Responsible Care management system documentation
    • REACH pre-registration for high-volume intermediates
    • OSHA Hazard Communication Standard (29 CFR 1910.1200) for chemical labeling and SDS management

    Typical usage ratio

    • Ratios from 0.8 up to 1.2 equivalents depending on substrate reactivity; process chemists adjust according to dielectric constant, catalyst presence, and expected conversion

    Downstream process integration

    • Dosed in controlled environments after precursor activation; compatible with continuous flow or batch reactors; often followed by quench and phase separation steps to minimize impurity carryover

    Final product types

    • Organic electronic intermediates (e.g., for OLED or polymer additives)
    • High-performance UV absorber building blocks
    • Monomers for specialty plastic manufacturing
    • Photoinitiator intermediate compounds

    4. Dye and Pigment Intermediate Preparation

    Producers of high-performance dyes and pigments utilize tosyl cyanide for the formation of stable aryl nitriles, which serve as base structures in azo and anthraquinone dye manufacturing. The controlled introduction of nitrile groups optimizes chromophore properties and lightfastness in end-use colorants. Our product’s batch consistency and purity facilitate direct application in regulated pigment value chains.

    Industry compliance standards

    • Oeko-Tex Standard 100 for textile-chemical inputs
    • EU Classification, Labelling and Packaging Regulation (CLP, EC No 1272/2008)
    • REACH substance pre-registration for downstream pigment application
    • ISO 9001:2015-certified production and QC release

    Typical usage ratio

    • Typically 1.0–1.2 equivalents relative to diazo substrate; slight excess used for difficult-to-activate aromatic positions; adjusted based on intermediate solubility

    Downstream process integration

    • Utilized in intermediate coupling steps prior to sulfonation, alkylation, or final diazotization; integrated into closed pigment reactors with environmental controls for cyanide containment

    Final product types

    • Nitrile-functionalized dye intermediates for direct and reactive dyes
    • High-performance organic pigments for specialty coatings
    • Raw materials for textile, inkjet, and industrial paint colorants

    Free Quote

    Competitive Tosyl Cyanide prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615371019725 or mail to admin@sinochem-nanjing.com.

    We will respond to you as soon as possible.

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    Certification & Compliance
    More Introduction

    Introducing Our Tosyl Cyanide: Practical Insight from a Chemical Manufacturer

    Real-World Value Behind Tosyl Cyanide

    Let me speak as someone who works day in and day out in a plant devoted to the real business of industrial chemistry. We get questions from customers who want reliable answers, not polished sales talk. So, I want to talk plainly about Tosyl Cyanide, what goes into making it, what sets it apart, and how the choices made at the manufacturing level show up in your laboratory or process line.

    A Technical Glimpse at Tosyl Cyanide

    Tosyl Cyanide has found a steady demand over the years, most notably for its role as a potent electrophilic cyanating agent in organic synthesis. In our plant, we focus on the p-Toluenesulfonyl cyanide form, with CAS number 3486-30-4. Our batches usually come as a free-flowing white crystalline powder, a form that serves both the needs of the fine chemical sector and specialty applications in pharmaceuticals and advanced materials. The typical purity, confirmed by HPLC, is above 99%, as any lower percentage can introduce unwanted impurities that affect downstream yields and waste time during purification.

    Production starts from sulfonyl chlorides, using cyanide sources tailored for reactivity and minimal byproducts. The way we conduct separation and purification really determines the quality. Every gram exits our finishing area with a trustable dryness and stability, achieved by vacuum drying at controlled temperatures and careful packaging that stands up to both ambient moisture and normal handling by operators on the receiving end.

    Where Tosyl Cyanide Stands Out in Synthesis

    From years in the plant, I see requests driven by applications in nitrile introduction, arylation sequences, and azide substitute chemistry. Laboratories and pilot lines often need a reagent they can trust to bring in the cyanide group without introducing metallurgical or unwanted halide residues. Our process design specifically keeps heavy metal catalysts and chloride traces out of the final product. Regular GC-MS and ICP-OES checks ensure that metals and sulfur compounds stay below detection limits, supporting sensitive uses in active pharmaceutical ingredient (API) synthesis.

    Why not just use sodium cyanide or other cyanides? Simple cyanides may offer less steric hindrance, but they are much less selective and hazardous during handling. Tosyl Cyanide’s sulfonyl protective group allows smoother, more controlled reactions in multistep synthesis. Users see higher selectivity in coupling or cyclization, saving on both time and purification, especially in plants running at scale where a percent improvement really cuts costs. At the same time, there’s no need for extra ligation controls or protective group manipulation after the cyanation step, because the sulfonyl group serves as a smart leaving group that avoids side reactions.

    Consistent Specifications—No Surprises

    We have learned that consistency in granular size, flowability, and moisture content really matters. Research labs often report failures traced back to clumping or variable dry weight. That’s why we keep our average particle size in the 80-120 micron range, balancing safe handling with rapid dissolution in standard organic solvents like dichloromethane, acetonitrile, and tetrahydrofuran. We control moisture content below 0.1%, using Karl Fischer titration before QC release. Operators in pilot production have told us that materials from our plant flow easily, even in high humidity or after sitting on a shelf, which makes a real difference in day-to-day operations.

    Nobody wants a spill or uncontrollable release, so the packaging is designed to open easily, close again tightly, and prevent static buildup on surfaces. Most of our orders go out in 1 kg and 10 kg HDPE wide-mouth drums, sealed with aluminum foil liners to block water vapor. Some buyers need DOT or ADR-compliant labeling for international transit, which we handle in-house, streamlining the chain of custody and ensuring compliance from factory to warehouse.

    Differentiation from Other Cyanation Reagents

    You have a choice between several cyanation reagents. Potassium cyanide, for example, is more aggressive but much more dangerous in regular production settings, and its residues are tough to eliminate in fine chemical synthesis. Benzyl cyanide might be less volatile but still leaves traces that affect downstream purity. Tosyl Cyanide sits in the right spot between efficacy, selectivity, and practical safety—hardly inert but sharply efficient without excessive toxicity hazards.

    Some labs experiment with TMSCN (trimethylsilyl cyanide), but we see recurring issues with hydrolysis or silyl group transfers, especially during water workups. Others try cyanogen bromide; the regulatory and safety hurdles for that alone make it impractical in many plants and R&D settings. Using Tosyl Cyanide avoids halogen release and narrows the risk profile overall. In our QC work, we routinely confirm less than 10 ppm residual sulfonic acid or cyanate, so the only competing byproduct is largely benign p-toluenesulfinic acid, which is easy to remove by aqueous extraction.

    Tosyl Cyanide suits both batch and flow chemistry. In our own pilot lines, we have run semi-continuous syntheses for intermediates used in dyes and ligands, and the data proves lower side product formation and robust throughput—the crystalline form helps steady dosing and keeps pumps clog-free.

    Supporting Advanced Synthesis and Custom Applications

    We track trends in pharma and agrochemical R&D, and a recurring need is for customizable reactivity—sometimes faster, sometimes milder based on substrate. Our team modifies batch parameters to provide material that meets unique specifications, such as extra-high purity for catalytic studies or controlled isotopic ratios for tracer experiments. In our experience, custom lots succeed when our chemists coordinate directly with the customer’s formulation or R&D team. Sharing exact needs before synthesis saves both time and money by preventing problems midway through scale-up.

    Some customers use Tosyl Cyanide to introduce nitrile groups into aromatic cores, to make active intermediates for cardiovascular drugs or fungicides. Our records show that using our material in Suzuki or Buchwald-Hartwig coupling often brings a tighter yield range than other suppliers’ material, likely because of impurity profiling and careful temperature control during our preparation. Both analytical support and technical troubleshooting are key here, and our staff remain on call for any technical clarifications, whether you run a bench-scale apparatus or one-ton vessels.

    Chemical Responsibility and Global Standards

    Any raw material containing cyanide carries responsibility. As a manufacturer in this sector, we don’t just focus on cost per kilogram. Our facility invests in containment and ventilation engineering, because uncontrolled release puts local communities and our staff at risk. Automated reactor controls and real-time cyanide sensors keep operations tight, so even during power fluctuations, there’s no risk of leak or exposure. End-users benefit from these investments, since they receive consistently high-quality Tosyl Cyanide, made by people who understand the human and regulatory cost of mismanagement.

    Many regulatory frameworks list Tosyl Cyanide as a precursor of concern for misuse, so packaging integrity and shipping documentation really matter. Our logistics system locks product inventory and batch data before orders ship, and shipping partners must follow the same standards we hold in-house. Traceability helps both during audits and in the rare event a package needs retrieval or investigation.

    Waste handling improves when product purity is predictable. Many users who switched to our batches report that their aqueous waste profile simplifies because lower sulfonic acid residues lead to cleaner workups. At our plant, effluent is monitored and treated before discharge, which eliminates both environmental headaches and surprise inspection findings. Green chemistry is not just a buzzword here—it comes from process choices and day-to-day operational discipline.

    Sourcing Direct from the Plant—Why It Matters

    You might wonder if it matters buying Tosyl Cyanide from a manufacturer directly, rather than through traders or brokers. In practice, our customers notice real differences in quality documentation, lot-to-lot consistency, and transparency in origin. Traders often hold batches for months in warehousing, sometimes under poor storage, and temperature swings or humidity can quickly degrade the product and create safety concerns. Documents from a trader rarely give the same level of analytical detail as what leaves our QC lab—with every shipment, we provide a full COA including chromatographic trace, residue on ignition, moisture, metal trace analysis, and full IR/NMR spectra on request. Labs working on regulatory filings or scale-up pilots don’t need to guess about product origin or test their own samples just to be sure of what’s arriving.

    We believe in open lines of communication. If a customer encounters a batch anomaly or a regulatory query, we trace batch records back to reactor logbooks and environmental sensors. This transparency is possible only because we operate the site ourselves and keep paperwork rigorous. Our technical support team includes several synthesis and analytical chemists who participate in QC and production every day, so troubleshooting runs far beyond the FAQ or document library—most cases resolve with a fast consult and, if needed, direct batch remake.

    Supporting Innovation—Collaborative Problem-Solving

    We get requests for collaboration on synthesis planning. Many projects in modern chemistry demand tailored conditions to avoid common side reactions or to boost regioselectivity. Our experience with scale-up and troubleshooting in-house means we offer more than a product; we offer process insight. Say a project calls for large-batch cyanation steps or micronization for better dispersion in a solvent blend; our engineering group can alter crystallization or finishing conditions accordingly. In one instance, we worked with a specialty API producer who needed ultra-low residual chloride for regulatory registration in Europe; by swapping out part of our work-up process and monitoring chloride by ion chromatography, we exceeded their requirements and gained a long-term partner.

    We recognize that the landscape around Tosyl Cyanide is evolving. Customers sometimes want greener solvents or a guaranteed absence of residual solvents for sensitive formulations. In those cases, vacuum drying and nitrogen sweep in the final stage bring down residue levels, and we document every change for customer peace of mind. Each year, new routes in heterocycle synthesis and medicinal chemistry push the need for more consistent and predictable outcomes at pilot and commercial scale—the supply partnership works best when there’s direct, technical-level conversation.

    Balancing Cost, Safety, and Reliability

    Few chemicals balance the reactivity and controlled hazard of Tosyl Cyanide. Some contract manufacturers cut corners or outsource production to save on overhead. That works only until the first quality or safety incident hits. Investing up front in well-trained staff, modern air handling, analytical infrastructure, and proper waste management pays back with products users trust. For every lot leaving our facility, reviews check against established specifications and regulatory requirements. Feedback loops with every major customer let us stay aware of emerging challenges and opportunities—making adjustment not on a whim but informed by real-world use.

    Chasing cost savings with poorly made material often results in hidden process problems, lost batches, or compromised safety. The cost of a single lot failure or batch recall far outstrips the price tag per kilogram. Direct engagement, rigorous testing, and operational transparency summarize the value we provide. Operators, chemists, and safety managers all see the difference over time, which is why our longest partnerships have lasted more than a decade.

    Looking Forward—Continuous Improvement

    The chemical industry doesn’t stand still, especially in the fine chemicals and pharmaceutical intermediates sectors. The regulatory bar keeps rising, customers demand more detailed analytics, and every plant must reduce environmental footprint. We keep our Tosyl Cyanide manufacturing process under continual review and improvement, with changes driven by feedback from the people who use it every day. Pilot-scale trials for process tweaking always happen before we roll out to commercial scale, so customers know that any adjustment is backed by test data, not just theory.

    Lab managers and process chemists facing complex synthesis demands know that every input carries downstream consequences. Our responsibility as a manufacturer is to keep output tight, data transparent, and lines of communication open. Tosyl Cyanide from our plant carries the guarantee of direct oversight from synthesis to shipping, supported by a team who treat chemical safety, quality, and reliability as non-negotiables.

    Anyone looking for a cyanation reagent that punches above its weight in efficiency, predictability, and safety, should consider direct-from-source Tosyl Cyanide as a smart option for both today’s synthesis and tomorrow’s innovation.