Description

3,3-Dimethylbutyl Methyl Diethoxysilane is a specialized organosilicon compound featuring a branched alkyl chain and hydrolyzable ethoxy groups. This unique structure makes it a valuable intermediate for modifying surface properties and enhancing compatibility in advanced material formulations. It is primarily utilized by manufacturers in the silicone polymer, coatings, and adhesive industries seeking to impart specific hydrophobic or coupling characteristics.

Application

• Silicone Intermediate: A key building block for synthesizing custom silicone oils, resins, and elastomers with tailored properties.
• Surface Modification Agent: Used to treat inorganic fillers (e.g., silica, minerals) to improve dispersion and interfacial adhesion in polymer composites.
• Adhesive & Sealant Formulations: Functions as an adhesion promoter and crosslinking agent, enhancing bond strength and moisture resistance.
• Hydrophobic Coatings: Imparts water-repellent characteristics to surfaces in protective coating applications.
• Coupling Agent for Composites: Improves the compatibility between organic polymers and inorganic reinforcements, leading to superior mechanical performance.
• Release Coatings: Employed in the production of silicone-based release liners for labels and tapes.

Basic Information

Item	Detail
Product Name	3,3-Dimethylbutyl Methyl Diethoxysilane
CAS No.	152223-35-3
Molecular Formula	C11H26O2Si
Molecular Weight	218.41 g/mol
Synonyms	Methyl(3,3-dimethylbutyl)diethoxysilane; Diethoxy(3,3-dimethylbutyl)methylsilane; (3,3-Dimethylbutyl)methyldiethoxysilane; 1-(Diethoxymethylsilyl)-3,3-dimethylbutane; Neohexylmethyldiethoxysilane
EINECS	Contact for details

Quality Control

Our 3,3-Dimethylbutyl Methyl Diethoxysilane is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including GC, NMR, and Karl Fischer titration, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

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 to exclude moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.410 - 1.420
Density (20°C)	0.85 - 0.87 g/mL

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