Description

Isobutyltrichlorosilane is a highly reactive organosilicon compound primarily used as a key intermediate in the synthesis of silicone polymers and as a versatile surface modifying agent. Its value lies in its ability to introduce the isobutyl group and reactive chlorosilane functionality into molecules, enabling precise material engineering. This chemical is essential for manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, where it serves as a crucial building block for silane coupling agents, hydrophobic coatings, and specialized silicone fluids.

Application

• Silane Coupling Agent Precursor: A key intermediate for manufacturing coupling agents that improve adhesion between organic polymers and inorganic surfaces like glass, minerals, and metals.
• Hydrophobic Surface Treatment: Used to impart water-repellent properties to surfaces in construction materials, textiles, and electronic components.
• Silicone Polymer Synthesis: Serves as a monomer or co-monomer in the production of modified silicone oils, resins, and elastomers with specific chain branching.
• Pharmaceutical & Agrochemical Intermediates: Employed in the synthesis of active ingredients and prodrugs that benefit from silane-based functional groups for stability or delivery.
• Crosslinking Agent: Functions as a crosslinker in silicone rubber formulations and in the production of moisture-curable sealants and adhesives.
• Nanomaterial Functionalization: Used to modify the surface chemistry of silica nanoparticles and other inorganic nanomaterials for composite applications.

Basic Information

Item	Detail
Product Name	Isobutyltrichlorosilane
CAS No.	18169-57-8
Molecular Formula	C4H9Cl3Si
Molecular Weight	191.56 g/mol
Synonyms	Trichloroisobutylsilane; (2-Methylpropyl)trichlorosilane; Isobutylsilicon trichloride; Isobutyltrichlorosilane; Silane, trichloro(2-methylpropyl)-; Trichloro(2-methylpropyl)silane; NSC 9375
EINECS	242-060-4

Quality Control

Our Isobutyltrichlorosilane is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay by GC, identity confirmation by FT-IR, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15-25°C. Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as water, strong bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 98.0%
Density (at 20°C)	1.17 - 1.19 g/mL
Refractive Index (n20D)	1.425 - 1.430
Boiling Point	Approx. 135-140°C

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