Description

Neophylmethyldimethoxysilane is a specialized organosilicon compound widely used as a key intermediate and coupling agent in advanced material synthesis. Its unique structure, featuring both a bulky neophyl group and reactive methoxysilane functionalities, provides exceptional performance in modifying surfaces and polymer backbones. This chemical is essential for manufacturers in the silicone polymer, adhesive, and specialty coatings industries seeking to enhance material properties such as hydrophobicity, adhesion, and thermal stability.

Application

• As a coupling agent in silicone resin and rubber formulations to improve crosslinking efficiency and mechanical properties.
• A key surface modification agent for inorganic fillers (e.g., silica, glass) to enhance compatibility with organic polymer matrices.
• An important intermediate in the synthesis of custom silanes and silicone-based additives for high-performance applications.
• Used in the production of moisture-curable sealants and adhesives, contributing to improved weatherability and adhesion to various substrates.
• Employed in the formulation of release coatings and mold-making materials within the manufacturing sector.
• Facilitates the development of hydrophobic coatings for construction, automotive, and electronic components.

Basic Information

Product Name	Neophylmethyldimethoxysilane
CAS No.	157223-33-1
Molecular Formula	C₁₂H₂₀O₂Si
Molecular Weight	224.37 g/mol
Synonyms	Dimethoxy(neophyl)methylsilane; (Neophyl)methyldimethoxysilane; Neophylmethyl Dimethoxysilane; 1,1-Dimethyl-2-phenylethyl(methyl)dimethoxysilane; α,α-Dimethylphenethylmethyldimethoxysilane; (2-Methyl-2-phenylpropyl)methyldimethoxysilane; Methyl(neophyl)dimethoxysilane; Silane, dimethoxy(2-methyl-2-phenylpropyl)methyl-
EINECS	Contact for details

Quality Control

Our Neophylmethyldimethoxysilane is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including gas chromatography (GC) for assay and impurity profiling. Certificates of Analysis (COA) documenting purity, identity, and key physical parameters are provided with every shipment and 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). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	~0.96 g/mL
Refractive Index (n20D)	~1.480

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