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HS Code |
207708 |
| Chemicalname | 1,4-Bis(Trimethylsilyl)-1,3-Butadiyne |
| Casnumber | 2551-62-4 |
| Molecularformula | C10H18Si2 |
| Molecularweight | 194.43 |
| Appearance | Colorless to pale yellow liquid |
| Boilingpoint | 123-125 °C at 760 mmHg |
| Density | 0.773 g/mL at 25 °C |
| Meltingpoint | -18 °C |
| Refractiveindex | n20/D 1.437 |
| Purity | >98.0% (GC) |
| Solubility | Soluble in organic solvents; insoluble in water |
| Synonyms | 1,4-Bis(trimethylsilyl)butadiyne, BTMSB |
As an accredited 1,4-Bis(Trimethylsilyl)-1,3-Butadiyne factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle with secure screw cap, labeled “1,4-Bis(Trimethylsilyl)-1,3-Butadiyne, 5 grams,” featuring hazard and safety information. |
| Shipping | 1,4-Bis(Trimethylsilyl)-1,3-Butadiyne is typically shipped in tightly sealed containers under an inert atmosphere, such as nitrogen or argon, to prevent moisture or air exposure. The chemical should be handled as a flammable liquid and stored away from heat, sparks, and open flames during transportation, in compliance with relevant shipping regulations. |
| Storage | 1,4-Bis(Trimethylsilyl)-1,3-Butadiyne should be stored in a cool, dry, and well-ventilated area away from sources of ignition, heat, and direct sunlight. Keep the container tightly closed and under an inert atmosphere, such as nitrogen or argon, to prevent moisture and air exposure. Store away from oxidizing agents and acids, following appropriate chemical compatibility guidelines. |
Applications of 1,4-Bis(Trimethylsilyl)-1,3-Butadiyne in Industrial Manufacturing1,4-Bis(Trimethylsilyl)-1,3-Butadiyne supports several advanced chemical synthesis pathways across the electronics, specialty polymer, and organic materials industries. We supply this compound directly for integration in demanding industrial processes requiring precise composition and purity control. Below are specific downstream segments where large-scale manufacturers utilize this material and relevant operational details for each application. 1. Organic Electronic Materials: Semiconducting Polymer SynthesisMajor electronic materials companies employ this compound as a building block for synthesizing soluble conjugated polymers used in organic field-effect transistors (OFETs) and organic photovoltaic cells (OPVs). The trimethylsilyl end groups facilitate controlled polymerization via transition-metal-mediated pathways, ensuring high molecular weight and processability. Strict moisture and oxygen exclusion is required throughout the process to maintain functional group integrity. This application demands constant feedstock QC for consistent electrical properties in the final devices. Industry compliance standards
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2. Specialty Siloxane-Modified Polyacetylene ProductionProducers of high-conductivity flexible films use this compound as a protected diyne monomer for developing siloxane-substituted polyacetylenes. The trimethylsilyl groups stabilize the diyne during controlled deprotection and polymerization stages, ensuring consistency in backbone conjugation and downstream material solubility. Strict exclusion of protic solvents and in-line NMR monitoring are essential for process reproducibility. Our product supports exacting standards for electrical film manufacture. Industry compliance standards
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3. Advanced Liquid Crystal Alignment Layer ManufacturingLeading display panel and liquid crystal device manufacturers employ this compound as a nanoscale alignment agent for polymeric orientation layers. The specific pi-conjugated backbone aids in controlled self-assembly, supporting uniform molecular orientation and improved contrast in LC displays. The silane end groups enhance surface interaction and facilitate post-treatment anchoring. Each process batch undergoes FTIR and GPC monitoring to ensure purity and performance of aligned films to strict display industry tolerances. Industry compliance standards
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4. Crosslinked Porous Polymer Precursor for Sensor ApplicationsMaterial scientists in the sensor manufacturing sector utilize this compound as a reactive precursor for fabricating crosslinked microporous polymers, often via acetylene coupling or click chemistry. The trimethylsilyl capping ensures precise reactivity, facilitating post-polymerization functionalization and high porosity control. The resulting frameworks deliver fast signal response and high analyte capture, critical in chemosensor and microelectronic sensing devices. Batch production features automated solid-state characterization for QMS traceability. Industry compliance standards
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5. Functional Carbon Nanostructure FabricationResearch-focused nanomaterial producers utilize this compound as a feedstock for synthesizing structurally uniform graphdiyne and related 2D carbon nanomaterials. The controlled silyl protection improves handling and enables stepwise oxidative coupling under copper or palladium catalysis, yielding defect-minimized planar architectures. Post-polymerization deprotection and careful solvent extraction are crucial for achieving consistent nanomaterial size and properties recognized in electrode and catalysis applications. Industry compliance standards
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Working as a chemical manufacturer brings a hands-on familiarity with the quirks and possibilities of specialty organosilicon compounds. One product we’ve cultivated significant experience with over years of production is 1,4-Bis(Trimethylsilyl)-1,3-Butadiyne, often recognized by chemists as BTMSB. Within the landscape of silylated diynes, BTMSB stands out, not just for what it brings to lab benches and pilot reactors, but for the way it solves evergreen challenges in synthesis, electronics research, and advanced materials development.
Our 1,4-Bis(Trimethylsilyl)-1,3-Butadiyne comes in high-purity form—crucial for reactions that falter with trace impurities. From the onset, batch synthesis puts temperature and moisture control at the forefront. This isn’t only a matter of making the right molecule: it’s about reducing peroxide formation over storage, and eliminating reactive byproducts long before the bottle leaves the factory. Over years of consistent demand from university labs and industrial pilots alike, feedback on material shelf life, volatility during transfer, and solubility in common organic solvents has shaped the way we monitor every production run.
Specifically, we have observed that isolation and purification stages create the greatest potential for product loss or unintentional side reactions. Direct feedback from research partners confirms that yields and reproducibility rise when silylation and workup occur under strictly controlled conditions. The approach here hasn’t changed since the early days: large-scale glassware, inert-atmosphere lines, and rinse testing to ensure the product is free from siloxane byproducts.
The scientific literature often introduces BTMSB as a precursor in the synthesis of conjugated polymers and molecular wires. The demand for stable, non-oxidized silylated diynes comes not just from academic curiosity but from project goals in organic electronics and advanced nanomaterials. Our collaborations with customers as they scale up reactions tell an interesting story—project success hinges not only on purity but on the chemical’s performance under non-ideal conditions.
For example, BTMSB tolerates air exposure better than many terminal acetylenes, though prudent chemists still use Schlenk lines and gloveboxes when planning large quantities. BTMSB’s low melting point, moderate volatility, and ease of dissolution in common non-polar solvents, including hexanes and dichloromethane, give researchers flexibility during handling and purification of larger synthetic intermediates. Actual feedback from custom synthesis chemists highlights BTMSB’s predictable reactivity in cross-coupling and cyclization reactions, a point that sets it apart from less stable or fussier analogs.
One of the major applications we’ve witnessed over the years comes in the Sonogashira and Glaser-type couplings. Customers tackling organic electronics or trying to lay down carbon-rich frameworks prefer BTMSB’s clean reactivity profile. Unlike unprotected diynes, BTMSB maintains its integrity under a range of catalytic conditions. The trimethylsilyl protection doesn’t only provide stability—it also simplifies downstream deprotection when chemists need to unmask terminal alkyne units for sequential coupling or cyclization.
Some users want to know how BTMSB compares with more basic diynes that lack silyl protection. Generating pure 1,3-butadiyne in situ often brings headaches: its volatility and high reactivity make isolation challenging, and storage is almost impossible without polymerization. BTMSB sidesteps these pitfalls through the trimethylsilyl protection, offering a robust route to handle longer workups and storage periods without decomposition.
Over the course of many customer partnerships, we have observed that those switching to BTMSB after difficulties with non-silylated diynes remark on far greater control over their reactions—not only in terms of yield but also product color and purity. Reduced byproduct formation translates to less time spent purifying by column chromatography, lowering solvent waste and simplifying scale-up.
In contrast with alternative silylated derivatives, such as the triisopropylsilyl analog, BTMSB brings important practical advantages. The trimethylsilyl (TMS) group removes readily under mild fluoride treatment, letting researchers deprotect under gentle conditions without risking base-sensitive or acid-sensitive motifs elsewhere in the molecule. Customers using bulkier silyl groups often report stubborn deprotection or side reactions, and the smaller TMS capping group of BTMSB strikes an ideal balance of stability and removability.
Handling requirements also differ: BTMSB’s moderate volatility makes it more user-friendly on the bench compared to highly volatile low-molecular-weight diynes. Years of working with production and packaging has taught us the importance of using amber vials sealed under inert gas—minor details, but ones that can spell the difference between a stable shipment and product loss. Most bulk batch recipients appreciate our focus on quality control during packing and logistics, not just on the synthetic chemistry.
Manufacturing and supplying BTMSB puts us in direct contact with researchers pursuing everything from targeted conjugated polymers to metal-organic frameworks. The recurring theme from customers: batch-to-batch consistency takes much of the uncertainty out of building larger synthetic routes. For electroactive materials, even minor inconsistency in nickel-, palladium-, or copper-catalyzed cross-couplings can derail lengthy research. BTMSB from a supplier that understands the technical requirements brings confidence to those running reactions at both the milligram and multigram scale.
Year after year, returned samples or product inquiries confirm equilibrium between purity and practicality. We’re not just sending out a molecule; we’re ensuring that BTMSB retains its purity as it sits in the fridge or shipping crate. Chemists have commented on BTMSB’s handling benefits during glovebox operations. Occasional feedback highlights ease of filtration and extraction after reactions, particularly in the context of sensitive post-coupling manipulations.
Users working at the interfaces of organic chemistry and materials science find that BTMSB bridges the gap between oddball specialty chemicals and reliable, scalable intermediates. Many researchers building core/shell nanostructures need fine-tuned control over alkynyl functionality; BTMSB provides a protected, yet agile route to introduce these groups at the right stage, without introducing reactive wildcards that complicate purification.
Producing BTMSB at scale draws sharp attention to safe handling of silylated acetylenes—a lesson taught by both near misses and routine process safety reviews. Even after years of experience, we never cut corners with peroxide prevention or temperature abuse. Every major synthesis run ends with careful quality control, not only for performance, but to assure researchers and procurement teams that no hidden risk rides along with the material.
On the environmental stewardship side, our internal processes limit volatile organic compound emissions and maximize solvent reuse wherever possible. The choice of inert atmosphere throughout synthesis and purification reduces contamination events, minor spills, and exposure risks, both to our workers and to the environment. Waste silyl byproducts see proper neutralization; leftover organic residues find their way to certified processing. This direct-from-factory mindset upholds the responsibility manufacturers have in the modern chemicals industry—a responsibility that traders or third-party suppliers seldom shoulder as directly.
BTMSB production takes up a small—but technically demanding—corner of the plant. The specialized handling required for high-purity diynes, and the consequences of just a few ppm impurity, keeps the focus on training, analytical oversight, and rapid isolation techniques. As the manufacturer, every step, from procurement of high-quality trimethylsilyl reagents to final double-sealed packaging, unfolds under our roof.
From first-hand observation, BTMSB’s story in customer laboratories typically begins at the bench, often within the confines of a glovebox or fume hood, but the real value comes as research scales. Solar cell developers, thin-film technologists, and nanoelectronic designers have all drawn on BTMSB for its unique reactivity. The molecule supports diverse approaches: it can connect aromatic units, generate extended π-conjugation, and underpin the modular synthesis of polymers with bespoke optoelectronic characteristics.
Exploring conjugated polymer syntheses, scientists find that the twin trimethylsilyl groups block premature reactions. Later, after the polymer backbone assembles, a simple fluoride treatment can unlock terminal alkyne functionality for subsequent chain extension or surface modification. Researchers tackling multi-step organic syntheses see enormous benefit in such selective “capping” and “decapping” without scrambling sensitive functional groups elsewhere.
In the ever-accelerating world of organic electronics, even small enhancements in material consistency and reactivity impact device performance. Having worked alongside innovators building organic semiconductors, OFETs, and optoelectronic films, we have witnessed how BTMSB’s stability and reliability affect not only reaction success but also the properties of finished devices. A manufacturer’s attention to every upstream and downstream detail, from moisture-free handling to predictable deprotection, gives downstream technologists a leg up as they chase improved conductivity, mobility, or photonic response in their products.
Supplying BTMSB in kilogram lots means confronting the practical upper limits of specialty chemistry. On the shop floor, that means considering not just chemical purity, but also logistical predictability. For one-off custom synthesis, small lots suffice, but as advanced polymer and materials programs transition projects to pilot or pre-production, repeat orders of several kilograms become reality. Early on, we learned that supporting these efforts means addressing concerns over batch reproducibility, storage stability, and documentation required by institutional safety and regulatory boards.
With repeated experience, we adapt batch sizes, packaging options, and traceability practices based on the evolving requirements of research groups and industrial clients alike. Large-batch syntheses prompt direct investment in new process controls and analytics. In some cases, we have developed customized formats, double-shipping in pre-chilled packaging or under specified inert gas atmospheres. These may seem like mere conveniences, but they keep high-value BTMSB usable for months, not just weeks—a key advantage over less rigorously produced alternatives.
Supplying BTMSB as a manufacturer, rather than a third-party distributor, roots our approach in accountability. Chemists value direct engagement on questions of lot composition, trace impurities, and optimal handling practices. With every batch, our technical support staff relays information directly from the shop floor, not a distant product catalog. Over time, our relationships with large academic consortia and industrial teams have yielded honest feedback, which funnels right back into output improvement.
On rare occasions when a customer has detected issues—whether during scale-up, intermediate isolation, or device prototyping—the troubleshooting process points squarely to trace variability in feedstock or minor variation in purification. As a manufacturer with tight control over every production step, we can adjust procedures immediately and share exact technical explanations, not excuses. This level of transparency sits at the core of E-E-A-T principles, which matter most in sensitive research or clinical development.
Our perspective stems from deep involvement in every production stage of 1,4-Bis(Trimethylsilyl)-1,3-Butadiyne. The balance between molecular protection, user-friendly deprotection, and consistent reliability emerges not only through precise chemistry, but by treating manufacturing as an evolving art. As silylated diyne applications keep advancing—from low-band-gap device formation to new directions in supramolecular chemistry—direct manufacturing experience feeds forward into superior product quality, batch control, and technical support.
Researchers rely on BTMSB for more than its well-documented publication history. They lean on the practical confidence that comes only from a factory that values the human, hands-on elements of specialty reagent production. Every bottle, every kilogram, reflects the lessons learned over years of scaling, testing, and refining a single compound for dozens of rapidly changing fields. These small details, the daily care in production and honest technical guidance, drive results that printed catalogs and online spec sheets simply cannot capture.
While synthesis technologies and end-use applications keep expanding, the priority remains clear: offer BTMSB with the purity, consistency, and direct technical support that ambitious research and production efforts demand. By maintaining control over every stage, from raw materials sourcing to the final shipment, we stand with chemists as both supplier and partner—not just for one project, but across the evolving challenges of modern molecular science.