Description

Chlorodimethylisopropoxysilane is a versatile organosilicon compound that serves as a key intermediate in the synthesis of advanced silicone polymers and surface-modifying agents. Its reactive chlorosilane and alkoxysilane groups make it a valuable building block for introducing specific functional groups into materials, enhancing properties like adhesion, hydrophobicity, and cross-linking density. This chemical is essential for manufacturers in the silicone elastomer, sealant, and specialty coatings industries who require precise molecular control for high-performance applications.

Application

• Silicone Intermediate: A crucial precursor in the synthesis of custom silicone oils, resins, and elastomers.
• Surface Modification Agent: Used to treat inorganic fillers (e.g., silica, glass) to improve dispersion and compatibility in polymer matrices.
• Adhesion Promoter: Functions as a coupling agent in sealants, adhesives, and coatings to enhance bonding to various substrates.
• Hydrophobic Coatings: Imparts water-repellent properties to surfaces in construction and protective coating formulations.
• Cross-linking Agent: Employed in room-temperature vulcanizing (RTV) silicone systems to control cure kinetics and final network structure.
• Pharmaceutical & Agro-chemical Synthesis: Serves as a protecting group or synthetic intermediate in the production of active ingredients.

Basic Information

Product Name	Chlorodimethylisopropoxysilane
CAS No.	1825-71-4
Molecular Formula	C5H13ClOSi
Molecular Weight	152.70 g/mol
Synonyms	Dimethylchloroisopropoxysilane; Isopropoxydimethylchlorosilane; Chloro(dimethyl)isopropoxysilane; Dimethyl(isopropoxy)chlorosilane; (Isopropoxy)dimethylchlorosilane; 1-Dimethylchlorosilyloxypropane; (Chlorodimethylsilyl) isopropyl ether
EINECS	217-369-6

Quality Control

Our Chlorodimethylisopropoxysilane is produced under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications for reactive silane applications. Certificates of Analysis (COA) detailing all test results are provided with each shipment to guarantee traceability and batch-to-batch consistency for our global B2B customers.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and reacts with fluorides and strong alkalis. Keep away from incompatible materials and sources of ignition. Use under an inert atmosphere (e.g., nitrogen or argon) for extended storage or after opening to maintain purity.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms to standard
Assay (GC)	≥ 98.0%
Density (20°C)	0.94 - 0.96 g/mL
Refractive Index (n20D)	1.405 - 1.415

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.