cas 78-77-4
Product Overview (Product Definition)
Chlorotrimethylsilane, also referred to as trimethylchlorosilane (abbreviated TMCS), has CAS No.75-77-4 and the molecular formula C₃H₉ClSi. It falls under the organosilicons subclass of organic chemicals. Under ambient conditions, it is a colourless, volatile transparent liquid with an irritating, pungent odour. This reactive chlorosilane readily hydrolyses upon exposure to moisture or humid air, producing corrosive hydrogen-chloride fumes as a by-product. It is miscible with benzene, diethyl ether and other aprotic organic solvents, yet reacts violently with water, alcohols and amines. Owing to the labile silicon-chlorine bond in its molecular structure, it acts as a foundational silylation reagent for installing trimethylsilyl groups in fine-chemical and pharmaceutical synthetic routes.
Full Product Description
Industrial-grade Chlorotrimethylsilane from Shandong Xima Supply Chain is a trusted organosilicon feedstock for organosilicon-material manufacturers, pharmaceutical-intermediate producers and fine-chemical synthesis laboratories worldwide. Its core characteristic stems from the labile silicon-chlorine covalent bond within its molecular framework. This distinct chemical bond enables efficient silylation reactions under moderate-mild reaction conditions. Compared with less-selective silylation feedstocks, chlorotrimethylsilane achieves selective protection of hydroxyl, amino and carboxyl functional groups, minimising undesired side-reactions within multi-step synthetic sequences. Operators must remain mindful of its high hydrolysis risk; contact with humid environments triggers decomposition, impairs product performance and releases corrosive vapours.
A key advantage of our chlorotrimethylsilane is its strict limits on critical trace impurities, including methyltrichlorosilane, silicon tetrachloride and hydrolysed by-product derivatives. Excess chlorosilane impurities trigger unplanned side-reactions during silylation protection steps and reduce target-product yields for downstream organosilicon or pharmaceutical production. Our industrial-grade material keeps these undesirable trace components within narrow technical specifications, which are validated via gas-chromatography testing. Furthermore, its excellent miscibility with common aprotic solvents supports homogeneous mixing inside reactor vessels, eliminating complex pre-treatment steps for plant-scale synthetic operations.
Buyers gain tangible operational and commercial benefits by choosing our reliable chlorotrimethylsilane supply. Tightly-managed impurity profiles stabilise silylation-reaction conversion rates and reduce downstream purification workload, lowering raw-material losses and production-related costs on client-side manufacturing lines. Our flexible bulk-inventory capacity accommodates both long-term framework contracts and urgent spot-order requests for organosilicon manufacturers and fine-chemical facilities. Customers can maintain uninterrupted production cycles without frequent supplier turnover. Every shipment includes complete official documentation to streamline import-customs clearance and internal quality-audit procedures for overseas industrial enterprises.
These performance claims are supported by our rigorous supply-chain-control protocols. Each incoming batch of chlorotrimethylsilane undergoes representative sampling and in-house laboratory testing prior to dispatch. Test metrics include GC-determined purity, visual appearance, and concentrations of relevant chlorosilane impurities. All measured results are documented on each lot's Certificate of Analysis. Our chlorotrimethylsilane has been exported for organosilicon-monomer manufacturing and pharmaceutical group-protection projects, earning repeat orders from industrial end-users. We only source material from audited upstream manufacturers holding valid hazardous-chemical production permits to guarantee consistent raw-material quality.
Global chemical purchasers commonly raise concerns regarding purity drift, excessive reactive silicon-based impurities, incomplete hazard-related documentation and inconsistent delivery timelines for flammable, moisture-sensitive organosilicon intermediates. As a licensed hazardous-chemical supply-chain trader, Shandong Xima carries out comprehensive pre-shipment inspections for every chlorotrimethylsilane consignment. We maintain adequate safety stock for standard industrial-grade specifications to address urgent procurement requests. A full documentation package consisting of GHS-compliant MSDS, batch-specific COA, commercial invoice and packing list is prepared for customs-compliance requirements. Our technical-support team can provide practical best-practice guidance covering hermetic sealed storage, low-humidity operating protocols and fire-safety measures to assist on-site plant operators in safely handling this reactive chlorosilane compound.
CTA (Call To Action)
If you are sourcing qualified industrial-grade Chlorotrimethylsilane for silylation synthesis, organosilicon-monomer production or pharmaceutical group-protection applications, please do not hesitate to contact us. We support bulk wholesale, sample requests and consultations for custom-specification requirements. Request your latest quotation and full specification sheet today.
whatsapp:+8617356006695 Email:xima777@ximachem.com
FAQ
Q1: What grades and purity levels of Chlorotrimethylsilane can you supply?
A: We mainly supply industrial grade Chlorotrimethylsilane with a minimum purity of ≥99.0%. A COA reporting GC measured purity and chlorosilane impurity indexes is provided for every batch. Reach out to us if you have special technical index requirements.
Q2: What are the primary application fields for Chlorotrimethylsilane?
A: It serves as a core silylation and end capping reagent. It is widely used for producing organosilicon monomers such as hexamethyldisilazane, and acts as a functional group protecting agent in pharmaceutical intermediate and fine chemical synthesis workflows.
Q3: Can I obtain a Chlorotrimethylsilane sample before placing a bulk order?
A: Sample services are available. Please send your sample specifications and delivery address via WhatsApp or email; our team will evaluate your request and propose a feasible sample solution. Please note that this highly flammable, moisture reactive substance is subject to strict UN1298 hazardous goods shipping regulations.
Q4: What shipping documents can you provide for import customs clearance?
A: We provide GHS standard MSDS, Certificate of Analysis (COA), commercial invoice and packing list for every shipment. Notify us in advance if you require additional certification documents.
Q5: What is your standard packaging for Chlorotrimethylsilane?
A: Our standard packaging uses hermetic, corrosion resistant steel drums that meet UN1298 hazardous goods transport standards. We can discuss alternative packaging options subject to the hazardous goods transportation and storage regulations of destination countries.
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