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HS Code |
499636 |
| Cas Number | 1066-45-1 |
| Molecular Formula | C3H9ClSn |
| Molar Mass | 220.27 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Density | 1.435 g/cm³ |
| Melting Point | -51 °C |
| Boiling Point | 108-110 °C (lit.) |
| Solubility In Water | Reacts |
| Refractive Index | 1.508 |
| Vapor Pressure | 13 mmHg (20 °C) |
| Flash Point | 31 °C |
| Odor | Strong, unpleasant |
As an accredited Trimethyltin Chloride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Trimethyltin Chloride is supplied in a 100-gram amber glass bottle, securely sealed, with warning labels and chemical safety information. |
| Shipping | Trimethyltin chloride should be shipped in tightly sealed containers, clearly labeled, and packed in accordance with hazardous material regulations. Transport must be in compliance with local, national, and international laws, such as DOT and IATA guidelines, as it is toxic and corrosive. Avoid exposure to heat, moisture, and incompatible substances during transit. |
| Storage | Trimethyltin chloride should be stored in a tightly sealed container, away from moisture, heat, and direct sunlight. Store it in a cool, dry, well-ventilated area specifically designated for toxic chemicals. Keep separate from incompatible substances such as oxidizers and strong acids. Always use corrosion-resistant containers and ensure proper chemical labeling for easy identification and safety compliance. |
Applications of Trimethyltin Chloride in Industrial ManufacturingAs a direct producer of Trimethyltin Chloride, we supply global chemical manufacturers with this specialized organotin compound for highly controlled, technically specific downstream applications. Our product serves as a critical intermediate in advanced industrial processes, subject to stringent compliance and precise handling across several key segments. 1. Synthesis of Organotin Stabilizers for PVC ManufacturingTrimethyltin Chloride is widely used as a precursor in the controlled synthesis of organotin stabilizers, which play a pivotal role in thermal stabilization during polyvinyl chloride (PVC) resin processing. Its use enables fine-tuning of stabilizer composition to meet demanding thermal resistance and color retention standards, essential for both rigid and flexible PVC products. Manufacturers must carefully regulate purity and dosage to ensure downstream polymer performance and compliance with global safety specifications. Industry compliance standards
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2. Raw Material for Organotin Catalysts in Polyurethane ProductionDue to its organotin structure, Trimethyltin Chloride is an essential starting material in the controlled production of specific tin-based catalysts for use in the polymerization and curing of polyurethane resins. Catalyst manufacturers rely on this material to tailor catalyst activity and selectivity during foaming and elastomer applications, impacting core performance metrics such as cure time, mechanical strength, and by-product minimization. Industry compliance standards
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3. Source Compound for Synthesis of Specialty Tin-Based Reagents in Pharmaceutical R&DR&D divisions in pharmaceutical fine chemical plants utilize Trimethyltin Chloride as a source compound for Grignard-type organotin reagents applied in complex organic synthesis routes, especially for introducing tin-functional groups during the protection and transformation of sensitive intermediates. Laboratories demand a tightly controlled, high-purity grade of this raw material to ensure compatibility with regulated GMP synthesis environments. Industry compliance standards
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4. Reference Calibration Standard in Analytical Instrumentation CalibrationAnalytical laboratories focused on environmental, industrial hygiene, and materials analysis employ ultra-pure Trimethyltin Chloride as a calibration standard for setting response factors in gas chromatography and atomic absorption spectroscopy, particularly for quantifying trace tin species in regulatory compliance monitoring. Demand for this application requires extreme batch-to-batch consistency and traceable documentation. Industry compliance standards
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Our team has dedicated years to manufacturing Trimethyltin Chloride (TMTCl), focusing on its purity and consistency for precise applications in labs and industrial-scale synthesis. With our 99% grade product, batch-to-batch accuracy takes priority, which simplifies the lives of production chemists and research professionals who depend on exact stoichiometry and trace level control.
Trimethyltin chloride appears as a clear to pale yellow liquid under standard conditions, with a pungent, distinctive odor that serves as a built-in recognition for trained personnel. Producing this compound on a large scale requires nuanced handling, strict environmental controls, and rigorous monitoring for both organotin and chloride impurity levels. Many only realize the importance of these factors after encountering variability from resellers who mix products of differing provenance and purity though blending, leading to inconsistent potencies and unpredictable reactions.
Our process uses highly purified starting materials and continuous monitoring by in-house chemists during each stage of synthesis and distillation. These safeguards provide a product with low moisture, controlled free chloride, and minimized dialkyltin byproducts, so formulators can run catalytic methylation, alkyl transfer, and ligand-exchange reactions without compensation steps or guesswork.
Industrial and research teams rely on trimethyltin chloride for specialty organotin intermediates, custom alkyltin catalyst systems, and targeted organic synthesis. Demand traces back to its role as an efficient methylating agent and as a precursor in the preparation of trimethyltin derivatives. Manufacturing pharmaceutical actives, advanced polymers, and specialty resins often calls for the direct use of organotin compounds at strictly defined grades. Only direct manufacturer supply removes uncertainty about provenance, storage, and contamination, issues that quietly erode consistency and safety.
Direct supply from our reactors ensures the product enters your process as intended: no storage in warehousing hubs, no exposure to fluctuating humidity, and no mixing with poorly sealed partial drums. Comparative shelf studies in our facility demonstrate that uncontrolled storage causes trace hydrolysis and gradual impurity formation, even with supposedly inert handling. By maintaining chain-of-custody from synthesis to customer delivery, our trimethyltin chloride preserves its physical and chemical integrity, saving both troubleshooting and waste.
Many chemical buyers make choices based only on assay or price sheets, overlooking manufacturing practices, quality control, and storage conditions that truly influence a product’s reliability. Resellers often act as intermediaries, purchasing from several sources, and rarely possess insight into manufacturing conditions, process yields, or off-spec batches blended into what looks like a standard drum. For trimethyltin chloride, minor hydrolysis or dialkyltin contamination skews reaction kinetics, alters product color, and introduces downstream purification headaches. These issues rarely appear in specifications but become evident in process upsets or unexplained impurity peaks on GC or NMR spectra.
Our long-term customers come from pharmaceutical development, agrochemicals synthesis, catalyst research, and advanced materials. They seek not only a substance but also the background knowledge, technical support, and practical insight found only in a full-scale manufacturing environment. We routinely provide not just the finished product but also access to batch records, impurity profiles, historical process changes, and scientific consultation where a distributor or trader falls silent.
One thing chemistry teaches repeatedly is that small details matter. Achieving tight controls at every stage, from vapor-phase alkylation to careful separation of tin-chloride azeotropes, produces a trimethyltin chloride that professionals trust with high-value intermediates. Some of our competitors offer material with less oversight, leaving researchers and production teams to troubleshoot residual chloride, partial hydrolysis, or colored byproducts. Our facility’s direct oversight allows ongoing improvement year after year in stability, clarity, and shelf life.
In chemical catalogs, trimethyltin chloride specifications might mention assay, color, and acid content… but those numbers do not reveal what buyers face in practice. Each step from tin starting material, through methyl chloride alkylation, to final distillation, affects the impurity profile. Slight excess moisture or oxygen in the process leads to byproducts that hydrolyze or discolor the final batch—a risk factory chemists understand but often cannot identify after-the-fact from a barrel label or single GC trace.
The biggest difference in our approach lies in comprehensive in-process control, including mid-batch sampling, on-site microanalysis, and the use of custom glassware designed for air-sensitive transfers. Instead of relying on warehouse shelf time, our team schedules deliveries just-in-time where possible, maximizing freshness and reducing handling-induced contamination. Many research groups credit these practices with higher reproducibility in their syntheses, improved catalyst turn-over numbers, or simply fewer headaches from unexplained side reactions.
As a manufacturer, we regularly support customers with technical detail most vendors avoid. Handling trimethyltin chloride isn’t simple—its volatility, reactivity with water, and potential for toxic vapor make packaging and storage serious concerns. Chemists on our team provide advice on inert gas transfer, cold storage, and protocols for minimizing exposure in gloveboxes and on the scale-up bench.
Large customers sometimes need multi-drum lots at tight delivery windows or unique packaging: high-integrity ampoules, nitrogen-blanketed containers, or custom-labeled drums with tamperproof seals. As a direct manufacturer, we accommodate these requests through nimble production scheduling and hands-on customer support. You do not wait on answers while someone “checks with the supplier.” Instead, your query connects to the person overseeing last night’s distillation or this morning’s quality control run, cutting the lag between lab problem and real-world solution.
Those in research know that schedule disruptions from quality issues hurt the project timeline far more than marginal differences in specification. Customers share stories of projects derailed by a poor shipment: color drift, phase separation in the drum, or unknown byproducts in high-value syntheses. Our facility’s attention to atmosphere control, immediate drum closure, and monitored shipment have brought relief and loyalty from experienced buyers who do not want surprises at the bench.
Trimethyltin chloride falls under special handling due to its toxicity and environmental impact. Manufacturing this tin compound in an audited facility means that exposures, effluent, and emissions stay below regulatory levels—our in-house safety teams monitor each vent, scrubber, and waste stream. Unlike disconnected supply nodes, we trace every batch to its origin, providing certificate of analysis, SDS, and safety protocols matched to the country of delivery.
Process safety comes from experience, not just documentation. Working directly with industrial-scale trimethyltin chloride for years, we know well that small oversights can produce large problems: dirty distillation columns or worn valves can let air or moisture in, causing gradual decomposition. Regular inspection routines and maintenance at our plant prevent these issues at the source. Scientific staff routinely brief customers on environmental discharge limits and help draft site-specific handling guidelines for both standard facilities and custom pilot plants. This is not possible through a faceless catalog vendor or a trading intermediary.
Research groups buying a single container and large process chemists ordering multiple tons require different support. As a production facility, we understand scaling logistics: scheduling multiple reactors, secure intermediate holding tanks, and validated cleanup cycles. For customers with custom syntheses, we can discuss alternate grades or pre-diluted options prepared fresh to order—solutions tailored by chemists working directly at the reactor or distillation line, not just by ticking a box on a requisition form.
Customers regularly encounter challenges adapting standard trimethyltin chloride to new ligation reactions, unusual solvents, or catalyst platforms. Our technical staff offer insight that only comes from routine handling of bulk lots, troubleshooting reactivity, and exploring impurity effects on real processes. This collaboration goes both ways; feedback from advanced users helps us refine product purity, packaging, and documentation to streamline handling and minimize downtime.
Chemistry draws out differences that paperwork can’t capture. The journey from raw tin ingots and methyl chloride gas to a finished, high-purity trimethyltin chloride means managing every detail: raw material storage, reaction quality, distillation, packaging, and transport. Distributors, even well-meaning ones, do not have direct oversight of these steps. They rely on supplier trust, paperwork, and generic lab analysis, often missing fresh changes in batch-to-batch quality.
Our operation allows control and accountability through every stage; we take pride in corrective action and process improvement, viewing every non-optimal batch or customer report as a learning opportunity. Localized bottling and real attention during transport preserve reactivity and color while avoiding cross-contamination. We invest in site-specific technical support to answer in-depth questions on scale-up, process integration, and health or environmental controls. This is not a value that shows up in price alone, but customers returning year-over-year speak to the difference in performance and peace of mind.
Chemists who have used multiple sources of trimethyltin chloride quickly notice the difference between direct-manufactured, tightly-controlled product and “commodity grade” material moved across warehouses and repackaged by brokers. Whether it is the lack of odor deviation, stable reactivity in critical coupling reactions, or a customer’s need for a custom container sealed under dry nitrogen, those details are hallmarks of a manufacturer who stands by their work.
For an organotin reagent as sensitive and critical as trimethyltin chloride, our experience has shown that tight process control, honest communication, immediate technical support, and continual refinement deliver the reliability that chemists demand. From catalyst and pharmaceutical researchers running precision reactions all the way to multinational process teams managing tons per year, our focus remains on what works in the real world—not just what reads well in a product catalog.
Supplying directly from the manufacturing source ensures customers get what they expect, when they expect it: well-characterized, pure trimethyltin chloride suitable for advanced applications. Our plant’s doors remain open to ongoing technical dialogue, supporting those advancing chemistry in both industry and research with accountable, high-quality materials, direct expertise, and real-world perspective every step of the way.