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1-Trimethylsilyl-1,2,4-Triazole

    • Product Name 1-Trimethylsilyl-1,2,4-Triazole
    • Alias 1-trimethylsilyl-1H-1,2,4-triazole
    • Einecs 659-457-4
    • 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
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    Specifications

    HS Code

    850088

    Productname 1-Trimethylsilyl-1,2,4-Triazole
    Casnumber 18156-74-6
    Molecularformula C5H11N3Si
    Molecularweight 129.25 g/mol
    Appearance Colorless to pale yellow liquid
    Boilingpoint 70-71 °C at 13 mmHg
    Density 0.984 g/mL at 25 °C
    Purity Typically ≥97%
    Solubility Soluble in organic solvents
    Storageconditions Store under inert gas, away from moisture
    Refractiveindex n20/D 1.445
    Synonyms TMS-triazole, 1-(Trimethylsilyl)-1,2,4-triazole

    As an accredited 1-Trimethylsilyl-1,2,4-Triazole factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle, 25 grams, sealed with a screw cap, labeled with chemical name, CAS number, hazard symbols, and manufacturer’s logo.
    Shipping 1-Trimethylsilyl-1,2,4-Triazole is typically shipped in sealed, chemically resistant containers under dry, cool conditions to prevent moisture exposure and degradation. Packaging should comply with regulations for hazardous chemicals. Proper labeling, documentation, and, if necessary, cushioning against breakage are essential to ensure safe handling and transport during shipping.
    Storage **1-Trimethylsilyl-1,2,4-triazole** should be stored in a tightly sealed container, under an inert atmosphere such as nitrogen or argon, to prevent hydrolysis and degradation. Keep it away from moisture, air, and oxidizing agents. Store in a cool, dry, and well-ventilated area, ideally at temperatures below 25°C. Properly label the container and keep it away from incompatible substances.
    Application of 1-Trimethylsilyl-1,2,4-Triazole

    Applications of 1-Trimethylsilyl-1,2,4-Triazole in Industrial Manufacturing

    1-Trimethylsilyl-1,2,4-triazole is a specialty reagent recognized for its silylating properties and functional group transfer capabilities, enabling reliable delivery of triazole moieties and silyl protection in precision organic synthesis. Our manufacturing process produces material suitable for a range of advanced downstream applications by pharmaceutical, agrochemical, and materials synthesis industries, where controlled reactivity and compliance with stringent regulatory systems are critical for customer production lines.

    1. Pharmaceutical Intermediate for Voriconazole API Synthesis

    Major pharmaceutical firms incorporate 1-trimethylsilyl-1,2,4-triazole as a triazole source in the final step of voriconazole active pharmaceutical ingredient (API) synthesis. This reaction requires a controlled triazolylation of the chloro-substituted intermediate, demanding impurity profiles that pass ICH Q7 GMP guidelines for commercial drug substance. The specific molar ratio is carefully adjusted depending on impurity control and batch volume, while process engineers closely monitor reaction kinetics and residual levels throughout quenching and crystallization.

    Industry compliance standards

    • ICH Q7 GMP for APIs
    • USP and Ph. Eur. monographs for voriconazole
    • 21 CFR Part 211 (U.S. FDA cGMP)
    • EMA QWP/130/96 (EU API Guideline)

    Typical usage ratio

    • Equimolar to slight molar excess (1.0–1.2 equivalents)—tuned to ensure full conversion and minimize residuals; adjusted based on chromatographic impurity evaluation.

    Downstream process integration

    • Added at the nucleophilic substitution stage—post-drying, under inert atmosphere, with temperature control between 0–10°C; reaction allowed to proceed before solvent swap and quenching.

    Final product types

    • Voriconazole API (drug substance)—supplied for tableting, sterile injectable formulations, and oral suspensions.

    2. Silylating Agent in Nucleoside Derivative Protection

    Oligonucleotide and nucleoside analog API developers rely on silyl-triazole reagents for temporary protection of reactive NH and OH groups during multi-step synthesis. 1-Trimethylsilyl-1,2,4-triazole serves as a mild, specific silylation agent, especially valued in process routes sensitive to water or harsh conditions. Ensuring compliance with USP and Ph. Eur. guidelines, our customers validate absence of residual trimethylsilyl groups and triazole ring impurities in final purified nucleoside APIs or intermediates.

    Industry compliance standards

    • USP and Ph. Eur.—nucleoside analogs and nucleotide APIs
    • ICH Q3A/B (Residual solvents and impurities limits)
    • Japanese Pharmacopoeia (JP)
    • FDA 21 CFR Part 210, 211

    Typical usage ratio

    • 0.9–1.3 equivalents per reactive group—optimized according to reactivity of nucleobase/heterocycle and downstream cleavage requirements.

    Downstream process integration

    • Applied in the early to mid-stage synthetic protection step, typically dissolved in dry acetonitrile or dichloromethane; subsequent steps remove the silyl group hydrolytically or via acidolysis prior to API crystallization or isolation.

    Final product types

    • Penciclovir, Brivudine, and related nucleoside analog intermediates for antiviral and chemotherapy APIs.

    3. Key Reagent in Triazole Fungicide Intermediate Synthesis

    Agrochemical manufacturers involved in triazole class fungicides—such as tebuconazole, cyproconazole, or propiconazole—use 1-trimethylsilyl-1,2,4-triazole in triazole ring introduction steps under stringent regulatory frameworks (such as EC Regulation 1107/2009 and FAO/WHO specifications). Material is weighed and dosed based on lab-to-pilot plant process design, with thorough vetting to avoid unwanted by-product formation and to satisfy residue control for final crop protection active ingredient registration.

    Industry compliance standards

    • FAO/WHO Specifications for Plant Protection Products
    • EC Regulation 1107/2009 (EU Pesticide Regulation)
    • US EPA 40 CFR Part 174
    • OECD Good Laboratory Practice (GLP)

    Typical usage ratio

    • Calculated by palladium or copper-catalyzed process design—from stoichiometric equivalent to 5–15% molar excess depending on target conversion and scaling considerations.

    Downstream process integration

    • Charged post-halogenation step; reaction driven by phase-transfer catalyst or anhydrous base; final triazolylated intermediate is isolated and passed downstream for oxidation, methylation, or condensation as required by the target fungicide’s structure.

    Final product types

    • Intermediates for tebuconazole, cyproconazole, propiconazole fungicide APIs.

    4. Advanced Building Block for Heterocyclic Material Synthesis

    Manufacturers in advanced materials and specialty polymers employ 1-trimethylsilyl-1,2,4-triazole in the targeted assembly of heterocyclic units within high-performance polymers, liquid crystal intermediates, and specialty coating resins. Entries into production lines are subject to ISO 9001-certified quality management systems, and conformity to customer-specified impurity and heavy metals limits is essential. The precision introduction at the heterocycle construction stage ensures downstream equipment and resin blending are not hindered by side product accumulation.

    Industry compliance standards

    • ISO 9001:2015 Quality Management Systems
    • REACH (EU Chemicals Regulation)
    • ASTM D6047 (General Chemicals for Polymers)
    • Custom CP/USP impurity profiles by end-user QC

    Typical usage ratio

    • 0.8–1.5 equivalents relative to core scaffold, adjusted for scale-up and catalyst effectiveness in heterocycle assembly.

    Downstream process integration

    • Dosed during initial cyclization or nucleophilic substitution within multi-step synthesis lines; solvent selection and temperature profile refined for polymer-grade purity; work-up by precipitation or membrane nanofiltration as specified by downstream processing protocols.

    Final product types

    • Functionalized triazole monomers for engineered resins, OLED intermediates, high-temperature polyheterocycles, and custom performance coatings.
    Free Quote

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    Certification & Compliance
    More Introduction

    1-Trimethylsilyl-1,2,4-Triazole — Practical Insights From Our Production Line

    Getting to Know 1-Trimethylsilyl-1,2,4-Triazole

    There’s a lot that goes into bringing 1-Trimethylsilyl-1,2,4-Triazole from raw materials to its finished form. We don’t just react ingredients and watch the clock — our process comes from years of working with sensitive triazole derivatives and learning what really matters to both research chemists and scale-up production engineers. You can look up the formula, C5H11N3Si, in any technical catalog, but the details about why this compound stands out come straight from our daily production routines.

    Our 1-Trimethylsilyl-1,2,4-Triazole typically appears as a clear, colorless to light-yellow liquid, carrying a distinctive, mild amine scent. The silyl group attached to the triazole ring shifts its behavior in ways that researchers and process developers depend on. Sourcing pure, stable material often becomes a pain point for people. We learned firsthand how a speck of unwanted moisture will spoil a synthesis, causing hydrolysis or inconsistent reactivity. For that reason, all batches are distilled under inert atmosphere, and tight moisture controls start at raw material intake and run all the way through to loading the shipping bottle. For anyone working with silylated heterocycles, strict exclusion of water is more than a box to tick — it defines the quality of the whole lot.

    What Sets Our Material Apart

    Most industrial triazoles line up in powder form, sometimes with fine dust creating hassles in loading and weighing. Our 1-Trimethylsilyl version comes as a liquid — so lab workers pour instead of scrape, and losses fall sharply. Viscosity stays low enough to enable easy dispensing even at cooler warehouse temperatures. There’s no stubborn residue sticking to glassware, which saves headaches at the weighing station. We keep each production run within a tight purity window through GC and NMR checks, and our routine in-plant cross-checks pick up trace silanol or trimethylsilanol spots, which will signal something off upstream.

    People often compare this compound with trimethylsilyl azole analogs or with non-silylated 1,2,4-triazole. That extra silyl group on the 1-position means faster alkylation and acylation reactions in organic synthesis. It works as a nucleophilic partner that doesn’t put up with sluggish side reactions. We’ve run kinetic trials with different suppliers’ products — only samples prepared with attention to extreme dryness let users finish a clean conversion, avoiding messy byproducts linked to active water or air entry. In peptide coupling, for example, anyone who’s lived through gummed-up reactors sees the value in consistent, dry, pure silyl-triazole.

    Usage in Real-World Synthesis

    Down at the bench, 1-Trimethylsilyl-1,2,4-Triazole sees most demand as a silylating agent, or as an N-nucleophile for specialized heterocycle construction. The site-specific reactivity at the silyl group matters in target-molecule development. More than a few leading pharmaceutical candidates reach their intermediate stages through steps that park this triazole on a synthetic branch, only to swap it out later. Protecting the parent 1,2,4-triazole ring with a trimethylsilyl gives chemists a “switch” — temporary, fast, and selective. Speeding up those transformations saves not only time, but also valuable API intermediates that degrade fast under less-controlled conditions.

    Out of every batch we rush to the customer, about half lands in hands developing next-generation fungicides or specialty agrochemicals. The rest go to contract research organizations and university labs running on tight turnaround times. No two clients run their syntheses quite the same way, so feedback loops between our plant floor and their labs help us spot what matters: purity, dryness, small-scale repeatability, and no batch-to-batch drift. We don’t treat meeting those requirements as an afterthought — they’re what keep customers from switching to someone else.

    Comparing Other Triazole Products

    If you stack 1-Trimethylsilyl-1,2,4-Triazole beside the standard 1,2,4-triazole, you’ll feel the shift in volatility and solubility right away. The parent triazole often limps along in organic solvents, falling out or barely dissolving, especially in apolar media. Stick the trimethylsilyl group on the nitrogen at the 1-position, and suddenly the compound dives into organics like dichloromethane, ether, or THF with barely a cloud. That opens up new routes for selective substitution, safer handling, and more tolerant conditions for sensitive reagents, especially where water or residual acids ruin the starting material. Nucleophilicity on the silylated ring matches demands in silyl transfer reactions, setting it apart from most other triazole derivatives.

    Our production staff handles each batch with gloves, goggles, and hands-on experience, not just a procedure on paper. Between solvent swaps, distillation, and final filtration, we spot common trip-ups that result from improper equipment care. Even once product leaves our filling line, we keep tabs on packaging integrity to avoid surprises. Leakers, cracked seals, or contaminated closures don’t get through because a single compromised drum can turn a whole week’s work into waste.

    Troubleshooting: Common Issues and Real Solutions

    Those who’ve worked with sensitive silyl heterocycles know that storage and transfer make or break a batch. Triazole rings pick up water quickly, and trimethylsilyl groups fall to hydrolysis in even mild humidity. Outside the plant, bottles should stay capped tight and handled in a glovebox or well-purged dry room. We mark each case with strict “keep dry” instructions, but physical handling by experienced people counts for much more than a printed warning. In hot climates, or during humid shipping windows, we beef up desiccant and inspect seals double before clearing a shipment. Robust secondary containment also protects against temperature spikes in transit.

    On the scale-up side, people sometimes report yield drops or side products in what looks like straightforward reactions. We encourage prompt feedback, so our lab team can analyze samples and trace the culprit — whether it’s trace degradation from moisture filtration, or an upstream contamination issue from mismatched solvents. Good feedback helps us spot faint shifts in physical properties long before GC purity would flag a drift. Over years, we have developed custom test strips and in-house protocols to catch issues before they show up in our customers’ yields and timelines.

    Why Purity, Consistency, and Documentation Matter

    The more a chemist leans on 1-Trimethylsilyl-1,2,4-Triazole as a cornerstone in their synthetic sequence, the more every batch characteristic grows in importance. Purity by GC offers the fastest snapshot, but we check by NMR to confirm the profile, sift for trace siloxanes or unsilylated triazole, and maintain a database that flags process shifts before they get out the door. Trace elements, if left unmonitored, can trigger side reactions or damage catalyst beds, especially during automated procedures. Someone looking for “standard” silyl triazole might not see those traces on the spec sheet, but after a faulty reaction, trust in the whole supply chain drops fast.

    We tie each drum to a well-documented chain of custody, with internal batch certification and storage logs. Sometimes, that level of detail looks like overkill — until a customer calls with a question on a two-year-old batch. Our ability to reach into records and pull out a synthesis date, storage temperature, and purity data underpins both batch recall and seamless customer audits. Drug developers facing regulatory scrutiny lean on this traceability to support their own filings and keep timelines credible.

    Supporting Innovation and Research

    Projects that depend on high-quality 1-Trimethylsilyl-1,2,4-Triazole often break new ground in chemical synthesis or process efficiency. Changing just one group on the triazole backbone means downstream substitution opens up, leading to different medicinal or agrochemical leads. Our experience helping process chemists and R&D departments fine-tune reaction conditions sometimes plays a quiet role in new discoveries. Not all product stories make it to the literature, since proprietary projects stay under wraps, but we see trends through the pattern of repeat orders and special requests.

    Sometimes, researchers reach out with requests for tweaks — slightly varied specifications or a custom stabilizer, for instance. We work with in-house development teams and outside partners to explore what’s possible, developing customized batches while keeping safety and reproducibility in focus. Experimenting with solvents, concentration, and packaging formats gives us insight into new ways chemists are thinking about silyl triazole applications. This feedback loop between manufacturing and discovery helps us keep up with new chemistry emerging from both industry and academia.

    Safety, Environmental, and Regulatory Considerations

    Safe handling of 1-Trimethylsilyl-1,2,4-Triazole always figures in our process planning. Working with silylated triazoles means paying close attention not only to employee health, but also to environmental impact from fugitive emissions or accidental releases. We design our plant with appropriate ventilation and solvent recovery, run regular workplace monitoring, and train staff on emergency response to spills. Since this compound reacts vigorously with water, dedicated transfer lines and purged vessels keep unwanted contact at bay.

    We also make waste streams a key focus, distilling and recycling solvents wherever possible to keep hazardous material volumes low. In regions with tighter environmental controls, we support downstream users with clear documentation on chemical characteristics and storage expectations. We stay current with evolving regulations, using in-house and third-party audits to verify compliance across all relevant frameworks. Since our customers’ own environmental audits often lean on our data, clean and traceable documentation keeps everyone’s projects on solid legal and ethical ground.

    Insights on Scalability and Process Integration

    From small vials for the research lab to multi-liter jugs for pilot plant work, scaling 1-Trimethylsilyl-1,2,4-Triazole production has taught us how to avoid the hidden pitfalls that pop up at higher volumes. Thermal control turns into a real issue on larger scales, with heat buildup giving unwanted byproducts and bumped distillation. We invested in jacketed vessels and automated dosing pumps, based on lessons learned from early losses in batch quality control. For customers scaling from 10 grams to several kilograms, we offer guidance based on firsthand experience, flagging risk areas and sharing practical “shop floor” solutions for drying, mixing, and transfer.

    Solvent selection shapes every production run, and we make conscious choices to phase out more hazardous or environmentally problematic options. Through operational reviews and input from both our technical crew and our customers, we have drifted toward solvents with better recovery profiles, fewer emissions, and faster purification cycles. Since new regulations and customer preferences keep shifting, we keep our formulation and production methods adaptive — ready to develop next-generation specifications or switch up packaging styles for better safety or convenience.

    The Human Element: Building Trust Through Experience

    A chemical company’s value grows not from volume alone, but from the expertise and adaptability of its people. Every successful ton of 1-Trimethylsilyl-1,2,4-Triazole we ship carries the touch of operators who can recognize the faintest sign of incomplete drying or a reactor running a few degrees too hot. Routine does not dull our attention, because small deviations in color, odor, or viscosity can clue a seasoned worker into the health of the process. Many of our team members have stuck with us for a decade or more, building a culture where pride in clean, reliable batches outweighs the ease of cutting corners.

    Customers have called late on a Friday with urgent technical questions, and we answer, drawing on our production logs and real memory — not a script. This accountability makes the difference for users who rely on fast, honest communication when something unexpected crops up. Our relationship with clients grows through repeated, reliable deliveries, technical support, and willingness to field even tough feedback without defensiveness. Knowledge travels both ways, and the questions some customers bring us lead to improvements that later help everyone in the supply chain.

    Continuous Improvement: Learning From Challenges

    No two years look quite the same in our workflow. Process improvements come from staying alert to new syntheses, changes in downstream demand, and emerging safety standards. Years ago, we tackled a reoccurring purity drift by overhauling our raw material inspection regime, investing in better analytical equipment, and introducing live process monitoring. We’ve switched filter media, tested different polymer liners for drums, and experimented with alternate drying regimens when water content became a challenge. Instead of assigning blame, we treat each new issue as a puzzle for the team to solve collectively.

    We monitor new research and patent filings. If a customer wants to scale up a novel use for 1-Trimethylsilyl-1,2,4-Triazole, we assess requirements with them, blending their technical know-how with our production reality. Sometimes, even minor shifts in a reaction step push us to respond with fresher batches or new packaging. Real-time improvements don’t always grab headlines, but over months and years, they add up to products that stay relevant and dependable, ready to support the next cycle of chemical progress.

    Looking Ahead

    Sustaining reliable supply for 1-Trimethylsilyl-1,2,4-Triazole goes further than following a formula. As more industries pivot to “green chemistry” and push for safer, cleaner, and more sustainable products, we expect the way we make and handle specialized triazoles to keep changing — for the better. We’ll adapt, invest, and listen as we always have. From raw-material intake to the last drum shipped, our goal remains the same: to provide a product that our users trust in their most important projects, built on the foundation of hard-won experience, careful analysis, and open dialogue.