Description

tert-Butyl(Ethyl)Dimethoxysilane is a specialized organosilicon compound with the CAS registry number 129880-07-5. This chemical serves as a versatile silane coupling agent and a key intermediate in the synthesis of advanced silicone polymers and surface-modifying agents. It is essential for manufacturers in the silicone elastomer, adhesive, sealant, and specialty coatings industries who require precise molecular architecture to enhance material properties like adhesion, crosslinking density, and hydrophobicity.

Application

• Silane Coupling Agent: Used to improve the adhesion between inorganic fillers (e.g., silica, glass) and organic polymer matrices in composites and rubber formulations.
• Silicone Intermediate: Acts as a key building block in the synthesis of custom silicone oils, resins, and elastomers with specific tert-butyl and ethyl functionalities.
• Surface Modification: Imparts hydrophobic and release properties to surfaces of glass, minerals, and metals for protective coatings.
• Adhesives & Sealants: Functions as a crosslinker and adhesion promoter in high-performance silicone-based adhesive and sealant systems.
• Pharmaceutical Intermediates: Utilized in the synthesis of complex molecules where its silane group enables specific chemical transformations.
• Research & Development: Serves as a valuable reagent in organic and organometallic chemistry research for developing new materials.

Basic Information

Product Name	tert-Butyl(Ethyl)Dimethoxysilane
CAS No.	129880-07-5
Molecular Formula	C8H20O2Si
Molecular Weight	176.33 g/mol
Synonyms	(tert-Butyl)ethyldimethoxysilane; Ethyl(tert-butyl)dimethoxysilane; Dimethoxy(tert-butyl)ethylsilane; tert-Butylethyldimethoxysilane; 1,1-Dimethylethyl(ethyl)dimethoxysilane; (tert-C4H9)(C2H5)Si(OCH3)2; Silane, dimethoxy(1,1-dimethylethyl)ethyl-
EINECS	Contact for details

Quality Control

Our production of tert-Butyl(Ethyl)Dimethoxysilane adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to guarantee compliance with your technical specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Density (20°C)	0.86 - 0.88 g/mL
Refractive Index (n20/D)	1.400 - 1.405

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