Chloromethyl(Dimethyl)Methoxysilane belongs to the organosilicon compound family, a group known for adding versatility and reactivity to synthesis processes that matter in the real world. Many industries work with this compound around the globe, driven by its unique properties, structure, and dependable quality. Chemists identify it by its straightforward chemical formula, C5H13ClOSi, which stays consistent across manufacturers. At the molecular level, its structure features a silicon atom at the center, bonded to two methyl groups, a chloromethyl group, and a methoxy substituent. This design offers both reactivity, thanks to the chlorine atom, and compatibility, delivered by the organic side chains. Its CAS number, 2212-11-5, lets businesses track, source, and regulate the substance efficiently.
Chloromethyl(Dimethyl)Methoxysilane appears typically as a clear to slightly cloudy liquid under ambient conditions. Its specific physical behavior depends on temperature and exposure to air, but most laboratories handle it as a free-flowing solution. The density lands around 1.05 g/cm³, making it slightly heavier than water but easy to measure accurately in liter or milliliter volumes during research or production. Its boiling point sits close to 90-100°C, so it evaporates faster than water at open air, which helps in separation techniques but demands careful storage and ventilation. Chloromethyl(Dimethyl)Methoxysilane does not come in the form of solid powder, flakes, pearls, or crystals under normal storage; it stays liquid, which lends itself to smooth dosing and mixing. In case of accidental exposure to moisture, the material may hydrolyze and give off hydrochloric acid gas, emphasizing the need for dry storage conditions. It smells sharp, typical of chlorosilane chemicals, and this odor warns workers about possible leaks or spills before they spread.
Chemical distributors and manufacturers usually offer Chloromethyl(Dimethyl)Methoxysilane in high-purity grades. Small-scale labs often purchase it in custom glass or sealed containers ranging from a few milliliters to several liters, while bulk buyers may require toned steel drums lined with protective materials to keep the chemical stable. Buyers keep an eye on purity (typically above 98%), which supports consistent results in silicon-based syntheses, coatings, and pharmaceutical intermediates. Specs cover the absence of water, trace metals, and residual solvents, as even small impurities hinder the reactions sensitive to contaminants. Since this chemical reacts rapidly and sometimes violently with moisture or alcohols, material compatibility during container selection prevents accidental decomposition or uncontrolled pressure increases.
At its core, the molecule brings together the reactive chloromethyl group and the less volatile methoxysilane group through a silicon center. Labs value the clear structure: the silicon atom connects to the methoxy and two methyl groups, which makes selective reactions possible, especially when heading toward more complex organosilicon targets. NMR spectroscopists locate the signature peaks for each group, making this a well-studied anchor molecule in developing coupling agents and intermediates for specialty silicone products. The precise molecular structure not only dictates the chemical’s route through synthetic pipelines but also informs safe handling protocols, since each substituent influences volatility and potential health impacts.
Global shipment, import, and export of Chloromethyl(Dimethyl)Methoxysilane requires compliance with customs, chemical regulations, and logistics documentation. Many governments apply the HS Code 29319090 for this specific raw material, which falls under organosilicon compounds. Customs authorities expect accurate paperwork for material traceability. The chemical’s hazardous profile means handlers work under national safety standards, such as OSHA in the US or REACH in the EU. MSDS (Material Safety Data Sheets) clearly outline its classification: flammable liquid, corrosive to eyes and skin, and hazardous to respiratory systems. Short-term exposure may cause dizziness or burns, while chronic contact increases risks to lung and liver function. Stringent signage, personal protective equipment (goggles, gloves, solvent-resistant aprons) and local ventilation minimize exposure on factory floors or research benches. Spill management relies on absorbent materials dedicated to chlorosilanes and suitable neutralizing agents.
Labs and factories rarely see Chloromethyl(Dimethyl)Methoxysilane in isolation. The compound’s appeal traces to its willingness to react: the chloromethyl group engages with nucleophiles under mild conditions, making it a workhorse for building larger, functional silicon-based molecules. It hydrolyzes aggressively with water, giving off corrosive byproducts like hydrochloric acid and methanol, so anyone using it must shield it from ambient humidity. Most organic solvents (toluene, hexane, dichloromethane) dissolve it effectively, letting users fine-tune concentrations for various downstream processes. The material avoids contact with strong acids, bases, or oxidizers, which spark unpredictable reactions and threaten both safety and product quality.
As a raw material, Chloromethyl(Dimethyl)Methoxysilane bridges basic chemicals and high-value specialty products. Producers of silicone resins or surface modifiers add it to paint formulations, adhesives, and lubricants to impart hydrophobicity or chemical resistance. Pharmaceutical labs take advantage of its reactivity to build drug scaffolds and cross-linkers. Electronics manufacturers rely on silane intermediates to treat glass fibers, develop insulating coatings, and improve the longevity of circuit boards exposed to harsh service conditions. Even the textile sector taps into its properties when aiming for water-repellent surface treatments that last. Every end user tracks batch and lot information carefully due to the risks associated with trace contamination or handling shortfalls.
Warehouse managers store Chloromethyl(Dimethyl)Methoxysilane in cool, dry, locked rooms away from incompatible chemicals, direct sunlight, or sources of ignition. Metal containers with PTFE liners or high-integrity glass bottles form the front line against leaks and accidental contact with air. Trained staff move the chemical only with fume extraction active and spill kits nearby. Disposal routes follow hazardous chemical regulations, sending residues and containers through licensed chemical waste processors. Tracking systems linked to safety audits keep the material’s usage above board, limiting both environmental impact and health risks to workers.
Reducing risks begins with thorough education. Regular safety drills, direct access to updated safety data sheets, and clearly labeled storage zones help prevent accidents. Automated pumps and enclosed transfer lines cut down on splash or vapor exposure, especially for workers managing large-volume transfers. If a spill happens, emergency protocols prioritize containment and ventilation, followed by neutralization under supervision. Companies find that investment in chemical-specific storage and handling tools pays off by keeping both people and property intact. In research environments, scaled-down reaction vessels with built-in pressure-relief measures offer additional protection, allowing innovation without increased danger.
