Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing admin@sinochem-nanjing.com 3389378665@qq.com
Follow us:

Tert-Butyldimethylsilylimidazole

    • Product Name Tert-Butyldimethylsilylimidazole
    • Alias TBSIM
    • Einecs 68155-88-8
    • 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

    260306

    Chemical Name Tert-Butyldimethylsilylimidazole
    Cas Number 18156-74-6
    Molecular Formula C9H20N2Si
    Molecular Weight 184.36
    Appearance Colorless to pale yellow liquid
    Boiling Point 72-74°C at 3 mmHg
    Density 0.938 g/mL at 25°C
    Purity Typically ≥98%
    Solubility Soluble in organic solvents
    Refractive Index n20/D 1.453
    Storage Temperature 2-8°C, tightly sealed
    Synonyms TBDMS-Imidazole, TBDMSI
    Smiles CC(C)(C)[Si](C)(C)n1ccnc1

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

    Packing & Storage
    Packing Tert-Butyldimethylsilylimidazole is supplied in a 25g amber glass bottle, sealed with a PTFE-lined screw cap for moisture protection.
    Shipping Tert-Butyldimethylsilylimidazole is shipped in tightly sealed, compatible containers to prevent moisture and air exposure. It is typically transported as a hazardous material, requiring proper labeling and documentation. Store and ship at room temperature, away from incompatible substances and sources of ignition, following all local and international shipping regulations.
    Storage Tert-Butyldimethylsilylimidazole should be stored in a tightly sealed container under an inert atmosphere, such as nitrogen or argon. Keep it in a cool, dry, and well-ventilated area, away from moisture, heat, and incompatible substances like acids and oxidizers. Protect from direct sunlight. Use appropriate personal protective equipment when handling, as it is moisture-sensitive and may react with air or water.
    Application of Tert-Butyldimethylsilylimidazole

    Applications of Tert-Butyldimethylsilylimidazole in Industrial Manufacturing

    Tert-Butyldimethylsilylimidazole (TBDMS-Im) plays a critical role as a silylating agent in specialized chemical synthesis workflows across several industrial sectors. Our manufacturing process prioritizes high purity and batch consistency, aligning with rigorous downstream industry standards. Below we detail direct application scenarios proven in real industrial formulations, highlighting regulatory and processing criteria alongside end-use product classes.

    1. Pharmaceutical API Intermediates Protection in Medicinal Chemistry

    Pharmaceutical manufacturing uses our TBDMS-Im as a selective silylation reagent for hydroxyl and amino group protection during multi-step active pharmaceutical ingredient (API) synthesis. The high selectivity and stability under reaction conditions reduce side product formation, supporting clear stepwise deprotection in downstream synthesis. Large-scale API manufacturers rely on reproducible reactivity matching US and EU standards, particularly in nucleoside and peptide intermediate synthesis.

    Industry compliance standards

    • ICH Q7: Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • 21 CFR 210/211: US FDA GMP for Finished Pharmaceuticals
    • European Pharmacopoeia (Ph. Eur.): API monographs
    • USP-NF: Monograph-specific guidelines for protected intermediates

    Typical usage ratio

    • 1.1–2.3 equivalents per functional group, adjusted according to substrate excess and targeted conversion yield in batch or continuous pharmaceutical reactors.

    Downstream process integration

    • Addition at the intermediate synthesis stage, typically in aprotic solvent under dry, inert conditions. The compound reacts directly following the deprotonation or activation step, with temperature and stirring monitored to ensure full protection before subsequent chain extension or cyclization.

    Final product types

    • Nucleoside analogues for antiviral drugs
    • Peptide-based API building blocks
    • Carbohydrate-based API intermediates
    • Specialty protected alcohol intermediates for oncology APIs

    2. Silylation of Polysaccharides for Modified Cellulose Derivatives

    Manufacturers of advanced cellulose-based materials use TBDMS-Im for the selective silylation of hydroxyl groups on natural and regenerated polysaccharides. This enables production of partially or fully protected cellulose derivatives that serve as controlled-release agents and film-forming additives in pharmaceutical and specialty coatings industries. The silylation step introduces hydrophobicity and controlled degradation profiles during subsequent formulation or extrusion.

    Industry compliance standards

    • USP-NF: Monographs for cellulose derivatives
    • ISO 9001: Quality management systems for chemical manufacturing
    • 21 CFR 175.300: Indirect food additive regulation (for final derivatives in packaging)
    • EU REACH: Registration for use in surface treatments

    Typical usage ratio

    • 0.8–1.2 molar equivalents per hydroxyl group, depending on the targeted degree of substitution and viscosity control parameters established in pre-formulation pilot runs.

    Downstream process integration

    • Integration into the main reactor after cellulose dissolution and activation, normally post-alkaline or enzymatic pretreatment. The material is filtered, neutralized, and washed in a dedicated silyl ether workup stage to remove excess agent and byproducts prior to further modification or granulation.

    Final product types

    • Hydrophobically modified cellulose ethers for controlled-release pharmaceuticals
    • Silylated cellulose used in moisture-resistant coatings
    • Biodegradable packaging films with tailored degradation rates
    • Paint and ink additives based on protected cellulose

    3. Analytical Derivatization Reagents for GC and LC Sample Prep

    Environmental, clinical, and specialty laboratories regularly use TBDMS-Im as a derivatization reagent in sample preparation protocols for gas chromatography (GC) and liquid chromatography (LC). The reagent efficiently silylates polar metabolites, hormones, and trace organic molecules, enhancing volatility, stability, and detectability. This application requires high reagent purity and consistently low moisture content to avoid incomplete derivatization and secondary artifacts during analysis.

    Industry compliance standards

    • ISO/IEC 17025: General requirements for laboratory competence
    • EPA Method 556.1: Determination of Haloacetic Acids (for environmental use)
    • CLSI C62-A: Method validation for chromatographic analysis in clinical labs
    • EU General Food Law Regulation EC 178/2002 (for food residue testing)

    Typical usage ratio

    • 50–200 µL per 1 mL of sample solution, subject to total free hydroxyl/amino content and assay matrix complexity. Amount adjusted based on target analyte load and required response sensitivity.

    Downstream process integration

    • Direct solvent-phase addition during sample preparation after solvent evaporation or prior to extraction. The compound reacts within 5–30 minutes at 25–70°C, followed by quenching and injection onto analytical columns.

    Final product types

    • Ready-to-inject GC derivatized metabolite samples
    • Derivatized hormone and steroid test sets for clinical diagnostics
    • Environmental water and soil samples for trace organics analysis
    • Food residue screening samples requiring extended column stability

    4. Modification of Specialty Siloxane Polymers

    In high-value silicone and siloxane polymer synthesis, engineers deploy TBDMS-Im as a blocking agent for terminal and pendant silanol groups during chain extension, crosslinking, or co-monomer insertion. This reagent helps control molecular weight distribution, reduce gel fraction, and tailor hydrophobic properties in end-use applications such as medical device components and specialty coatings. Our supply chain supports manufacturers subject to continuous process and batch validation.

    Industry compliance standards

    • ISO 10993-5: Biological evaluation of medical devices (cytotoxicity)
    • USP Class VI: Biological Reactivity Tests for Polymers
    • ASTM D792: Test methods for density and specific gravity of plastics
    • RoHS Directive 2011/65/EU: Restriction of hazardous substances (for electronics-related grades)

    Typical usage ratio

    • 0.5–1.5 wt% of total monomer/polymer feed, subject to degree of functionalization, chain length, and curing profile under plant-scale reactor conditions.

    Downstream process integration

    • Added post-silanol activation and prior to chain extension. Incorporated into silicone formulations under inert atmosphere with controlled catalyst introduction. Precise metering and inline monitoring ensure efficient silylation—minimizing unreacted silanol content before final compounding and molding steps.

    Final product types

    • Medical-grade silicone tubing and seals
    • Specialty silicone coatings for electronics
    • Flexible siloxane adhesives
    • Silicone-based release liners

    5. Protection of Hydroxyl Groups in Agrochemical Intermediate Synthesis

    Producers of high-value crop protection active ingredients employ TBDMS-Im for selective silylation of alcohol functionalities in synthetic intermediates. This protection strategy enables clean subsequent halogenation, oxidation, or coupling steps by preventing unwanted side reactions. The approach improves overall yield and downstream processing efficiency, directly supporting compliance with global regulatory dossiers for active agrochemical ingredients.

    Industry compliance standards

    • FAO/WHO JMPR Guidelines: Active ingredient manufacturing
    • OECD Principles of Good Laboratory Practice (GLP)
    • ISO 14001: Environmental management systems
    • European Union Directive 91/414/EEC: Placing of plant protection products on the market

    Typical usage ratio

    • 1.0–2.0 equivalents per alcohol group, fine-tuned based on target intermediate stability and yield optimization from bench to commercial plant scale.

    Downstream process integration

    • Introduction occurs immediately after alcohol-containing intermediate formation, under dry, inert reaction conditions. Post-silylation, subsequent transformation steps proceed before final deprotection and purification stages leading to the crystallized active ingredient.

    Final product types

    • Silyl ether protected intermediates for herbicide synthesis
    • Protected pesticide intermediates for fungicide actives
    • Key intermediates for insecticide production lines
    • Crop-specific active ingredient precursors
    Free Quote

    Competitive Tert-Butyldimethylsilylimidazole 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.

    Tel: +8615371019725

    Email: admin@sinochem-nanjing.com

    Get Free Quote of Sinochem Nanjing Corporation

    Flexible payment, competitive price, premium service - Inquire now!

    Certification & Compliance
    More Introduction

    Tert-Butyldimethylsilylimidazole: Experience from the Source

    Understanding Tert-Butyldimethylsilylimidazole from the Manufacturer’s Perspective

    Every batch of Tert-Butyldimethylsilylimidazole that leaves our reactor tells its own story. Through decades of producing organosilicon intermediates, we have navigated the challenges of quality, moisture sensitivity, and the pursuit of cleaner reaction profiles. Tert-Butyldimethylsilylimidazole delivers on these counts, achieving dependable silylation for a variety of applications. Manufacturers like us rely on process consistency, yield, and the ability to support chemists on projects with tighter timelines and higher expectations than ever. By walking through the product’s typical use cases and contrasts with similar offerings, we share knowledge drawn from real plant operations and feedback from customers who trust us with their most critical syntheses.

    What Sets the Structure Apart

    This molecule brings together the imidazole group with a tert-butyldimethylsilyl (TBDMS) protecting moiety. Structural stability, combined with reactivity, matters most during batch scale-up. Not long ago, silylating agents based on imidazole chemistry received more attention due to improvements in reaction selectivity. From our early pilot runs, we witnessed fewer undesired byproducts, a simple workup, and higher selectivity than we saw using traditional tert-butyldimethylsilyl chloride (TBDMSCl). Direct comparison showed why: Tert-Butyldimethylsilylimidazole offers a neutral byproduct profile and sidesteps inorganic salt formation. Operational staff spent less time troubleshooting filterability and salt disposal. In the long run, these subtleties affect the overall economics and safety profile of multi-kilogram preparations.

    How We Produce Purity You Can See and Feel

    Start with high-purity imidazole and match it with a robust tert-butyldimethylsilyl source. Reaction temperature control has become second nature for our team, as exotherms during silyl group introduction can make or break batch yield. Finished lots undergo GC and NMR checks to ensure purity above 98%, though many runs exceed this. We don’t cut corners to chase volume. Each drum that leaves our plant reflects the experience poured into scalable filtration and drying steps, not just automated paperwork. The crystalline, off-white solid handles well if kept away from atmospheric moisture and light. Every day on the floor, we reinforce the need for careful packaging, as the difference between a crisp batch and a caked batch comes down to the discipline of line workers and quality assurance staff, not just lab techs reading specifications.

    The Work of Silylation in Modern Synthesis

    Cross the threshold into synthetic organic labs and you see why protecting groups continue to dominate the conversation. Nowhere is this clearer than with the efforts to protect sensitive alcohols, carboxylic acids, and amines in complex molecule construction. We produce Tert-Butyldimethylsilylimidazole in bulk because it solves recurring challenges. It reacts with a broad array of functional groups, allows for the clean conversion of primary and secondary alcohols, and leaves other sensitive sites untouched. High yields have become the norm, not the exception, especially for sterically hindered substrates that laugh at less aggressive silylation techniques.

    Amongst all the silylating agents we have handled, TBDMS-imidazole proves its value by avoiding strong acid byproducts. This is good news for scaleups where corrosives shorten reactor lifespans or create extra maintenance headaches. Chemists grew weary of dealing with dimethylformamide (DMF) residues or excessive salts clogging lines. Feedback from kilo-lab partners points to clean workups and easier extraction. Less gunk in the process equals fewer headaches, as hour after hour of post-reaction separation disappears from the schedule. As the manufacturer, we recognize that real value reveals itself during process scaling and not just in patent literature.

    Comparison with Traditional Counterparts

    For decades, tert-butyldimethylsilyl chloride (TBDMSCl) shaped the world of alcohol protection chemistry. Our own team spent years cranking out tons of it for global use. The chloride offered straightforward access, worked well with imidazole as a base, and ended up in a multitude of silyl ethers worldwide. Yet, the stoichiometric production of salts and problems with certain functional groups nudged synthetic teams toward cleaner alternatives. We saw the same on our own production lines—clogs in pipes, waste management costs, and the hidden toll of chloride-based chemistry on stainless steel and personnel safety.

    Tert-Butyldimethylsilylimidazole entered the scene as a direct response to those headaches. Our teams were there at the first plant campaign, ramping up from lab to 100 kg vessels. The results proved remarkable: reduced salt load, improved product isolation, and a reduction in post-reaction effluent volume. The imidazole leaving group does not create caustic or messy reaction media, which, over months and years, translates to lower environmental impact from our pilot units to the main line. Sit with our production supervisors after a tough campaign, and you’ll hear how much less downtime comes from lines carrying imidazole silyl reagents. In our own cost accounting, the difference adds up.

    Troubleshooting in Daily Use

    No chemical comes without its quirks. Tert-Butyldimethylsilylimidazole brings a sensitivity to moisture that rivals other silyl reagents. Batches stored in humid rooms or exposed to ambient air develop an oily appearance as hydrolysis sets in. We learned to keep all bulk containers under nitrogen, and our warehouse team knows the dangers of repackaging on rainy or humid days. It’s not just about shelf life; even a few percent of hydrolysis can skew stoichiometry on a kilo scale. Minutes matter on the plant floor when jugs are open, so we train all operators to minimize air exposure and never leave the material out longer than necessary.

    Imidazole’s own volatility shows up on some analytical traces, especially in poorly vented laboratories. System builders recommend increased airflow near weighing stations. Our quality team caught batch discrepancies that traced back to leftover imidazole in the line—an easy fix after we revisited vacuum drying times. Some incoming customer queries relate to sand-like particulates: nearly always from moisture exposure, not product degradation. Short instructional videos have made a difference, especially for new process engineers.

    The Impact in High-throughput Chemistry

    Rapid development cycles strain both chemists and material suppliers. Screening hundreds of variants across short weeks calls for reagents that dissolve effortlessly and avoid batch-to-batch variation. Teams working in pharmaceutical development keep requesting Tert-Butyldimethylsilylimidazole for one reason: it lets them move quickly from small-screening reactions straight to scaleup. Faster workups mean less sample lost on intermediate purification, and the low byproduct signature matters even more when every milligram of a novel lead counts. We work with partners to coordinate multiple deliveries each week, because timing means everything when the pressure for novel drug candidates builds month after month.

    Molecular libraries live or die by the ability to protect and then deprotect functional groups without destroying what came before. The mild workup for Tert-Butyldimethylsilylimidazole becomes a deciding factor here. We see research groups move away from reagents that need additional scavenging or create emulsions that double the separation time. The choice is less about cost and more about the real price of lost days in the clinic pipeline. As manufacturers, we field the calls for technical consults and supply chain tweaks, often with barely a day’s notice. Our experience navigating shipping and repack prep for sensitive silyl reagents grew directly from listening to these time-pressed teams. At the production site, we see firsthand that no two weeks are exactly alike, but the need for reliability never fades.

    Regulatory Considerations and Material Handling Wisdom

    Every chemical manufacturer faces a tightening regulatory wire. Restrictive waste disposal policies, restrictions on chlorinated agents, and the cost of wastewater management now shape which reagents we produce at scale. The low salt and neutral byproducts of Tert-Butyldimethylsilylimidazole play well in this new world. Initial audit feedback from our wastewater experts shows a marked reduction in effluent load after switching over half our silylating product output to this imidazole class. This was no small feat—process changeover on the plant floor meant new training, revised SOPs, and multiple compliance checks for any load leaving the warehouse.

    Beyond paperwork, we spend time in the drum storage bays, checking seals and headspace as a matter of routine. Years spent studying failed batches, corroded valves, and drums that never quite made it through the hot season teach the value of ongoing staff education. Shortcuts in storing or dispensing Tert-Butyldimethylsilylimidazole rarely save money. Equipment upkeep, airflow maintenance, and drum labeling matter more than ever with moisture-sensitive materials. We keep the product in dark, climate-controlled zones and invest in tamper-evident packaging wherever custom orders call for it. This discipline keeps the material as pure as possible, reducing avoidable production errors both here and for our end customers, whose own quality teams depend on upstream integrity.

    Process Compatibility and Green Chemistry Trends

    Process engineers grapple with rising demand for “greener” manufacturing methods. We receive more requests for materials with lower process mass intensity (PMI) and reduced environmental impact. Supply chains favor silyl reagents with lower toxicity and simpler downstream treatment. A decade ago, demand focused on price per kilogram; now, it’s lifecycle analysis and the ecological fate of side products. Tert-Butyldimethylsilylimidazole fits this trend. As more regulatory agencies issue guidance on acceptable protectant classes for pharmaceutical and agrochemical production, silylation options with low environmental legacy gain in market share. Our own purchasing department sources raw imidazole from zero-waste producers, and customers expect transparent detail about this chain of custody.

    Within the reaction vessel, Tert-Butyldimethylsilylimidazole offers a broad window for selectivity. As new substrate classes emerge, especially in the field of peptidomimetics and modified nucleosides, the energy and material efficiency of the silylation step matters more than ever. Our staff engage directly with project chemists to troubleshoot issues relating to competing alkylation or unwanted side-chain reactions. Most of these issues resolve by careful temperature control and substrate purification. You learn to prioritize minor tweaks to save entire multi-ton batches—lessons only picked up across hundreds of runs, not just from reference books.

    Real-world Stories from the Production Floor

    A few years back, a prominent contract manufacturer needed emergency restocking after a key competitor’s product failed mid-campaign. Their project ran on a ticking clock, with no margin for error. From our own inventory, we rushed out fresh Tert-Butyldimethylsilylimidazole for overnight freight. That batch came off the line at 99.3% purity. By lunchtime, their process was running without a hiccup and finished ahead of schedule. Their feedback: no clumping, no filter-media changeout, lower total organic content in waste streams. These sorts of requests come up more often now, as the value of agile, experienced manufacturing partners is better understood across the sector.

    We’ve also supplied multiple academic groups developing new methods for sustainable management of protective chemistry. From the earliest benchtop gram scale up to multi-kilogram process validation, their trials pointed to more stable yields, easier purification, and fewer unexpected decompositions with Tert-Butyldimethylsilylimidazole than more familiar silyl chlorides or triflates. The real surprise for some teams came from the way the product held up under suboptimal storage in old labs—a testament to careful upstream manufacturing, regular QA releases, and a relentless focus on detail. We worked with those labs to refine their ordering, suggesting smaller pack sizes and dry nitrogen filling to match month-to-month usage patterns.

    Supporting Your Projects with Real-time Flexibility

    Every advance in discovery chemistry compresses timelines even further. Our role as a manufacturer extends beyond reactor operation. We work with logistics partners to anticipate customs slowdowns or temperature excursions during shipping. We custom-pack fresh drummed or bottle stock based on the shelf-life needs of your site. Last quarter saw a spike in requests for 1 kg, 5 kg, and 25 kg units, prompted by a new wave of biotech startup projects hitting early milestones. We’ve trained shipping staff and drivers to recognize special storage needs at handoff, reducing damage lost from simple oversight. Our materials managers analyze consumption trends and plan just-in-time production to limit warehouse aging. None of this comes from checklists—our staff pride themselves on cutting problems off before they begin.

    Continuous Learning and Feedback-Based Improvement

    Production philosophy at our site centers on tight feedback loops. Staff meetings gather insights from plant supervisors, warehouse keepers, and customer technical teams. Process engineers update batch records based on recurring fielded issues, especially those cropping up outside the factory gates. Our on-site lab studies contaminant signatures, not just final product, to detect issues as early as possible. We modify process filtration as new substrates or partners require, and we never shy away from direct site visits to work through real-time user challenges. Incoming QA claims receive personal attention, prompt diagnostics, and extra sampling rounds if needed. Through years of chemical production, the one lesson never lost is that clear, honest communication across departments prevents rework and lost materials.

    Future-Proofing, Market Evolution, and Technology Integration

    Our operation keeps one eye on shifting market and technology winds. The move toward continuous flow chemistry, for instance, carries unique implications for silylation. Tert-Butyldimethylsilylimidazole adapts well—it’s handleable, less prone to filter clogs, and compatible with lower solvent loads than many legacy reagents. We have invested in automated microfiltration skids and improved bulk container options suited for both batch and flow reactors. Some innovative partners are trialing in-line quality monitoring, requesting deliveries tied directly to their analytics. The product profile remains stable, even as the field swings from benchtop flasks to automated, networked synthesis cells.

    As precision chemistry accelerates, every supplier upstream faces higher accountability standards. Full traceability, short lead times, and proactive shelf life management look set to become de facto requirements. We remain committed to these, knowing that every hour shaved off a shipping delay, every percentage point won in batch purity, directly supports advances on the receiving end. Shared knowledge between production sites and laboratories underpins every gain in the product’s growing footprint across pharmaceutical, agrochemical, and specialty chemical landscapes.

    Final Reflections: Trust Built on Repetition and Insight

    No single silyl reagent proves perfect for every task, but the rise of Tert-Butyldimethylsilylimidazole shows how production experience, user feedback, and constant process tuning drive real change. Reagent selection has evolved far beyond price-per-kilogram—today, process impact, reliable purity, operational ease, and green credentials count as much as sticker cost. As a producer, we view every outgoing shipment as the latest test of methods and materials built up over countless runs. Decades in the industry teach that shortcuts waste more than they save and that the right product profile is built by listening—both to line workers here and chemists out there. With every kilogram delivered, we continue improving, knowing this molecule’s versatility and reliability justify the care that goes into every step of its production.