Description

Dimethylmethoxysilane is a highly versatile organosilicon compound, primarily valued as a key intermediate and functional monomer in the synthesis of silicone polymers and specialty materials. Its reactivity makes it essential for introducing methoxysilyl groups, which are crucial for cross-linking, adhesion promotion, and surface modification. This product is particularly important for manufacturers in the silicone elastomer, resin, and advanced coatings industries seeking to enhance material properties and processing characteristics.

Application

• Silicone Intermediate: A fundamental building block for the synthesis of various silicone fluids, resins, and elastomers.
• Cross-linking Agent: Used in room-temperature vulcanizing (RTV) silicone rubbers and sealants to control cure rates and final properties.
• Surface Treatment: Imparts hydrophobic and release properties to surfaces in paper, textile, and construction material manufacturing.
• Adhesion Promoter: Enhances the bonding of silicone-based materials to various substrates like metals, glass, and plastics.
• Pharmaceutical & Cosmetic Ingredient Synthesis: Serves as a protected intermediate in the production of silane-modified active ingredients and conditioning agents.
• Precursor for Silane Coupling Agents: Used to manufacture more complex organofunctional silanes for composite and filler treatment applications.

Basic Information

Product Name	Dimethylmethoxysilane
CAS No.	18033-75-5
Molecular Formula	C3H10OSi
Molecular Weight	90.20 g/mol
Synonyms	Methoxydimethylsilane; Dimethyl(methoxy)silane; (Methoxy)dimethylsilane; Dimethylsilyl methyl ether; Methyl dimethylsilyl ether; NSC 163810; Methoxy(dimethyl)silane
EINECS	241-979-1

Quality Control

Our Dimethylmethoxysilane is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and identity verification, to ensure it meets precise specifications for industrial and specialty chemical applications. Certificates of Analysis (COA) documenting purity, assay, and key physical properties are provided with every shipment to guarantee supply consistency and reliability for your processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flame. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and moisture ingress. Recommended storage temperature is 2-25°C. Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Density (20°C)	0.76 - 0.78 g/mL
Refractive Index (n20D)	1.368 - 1.372
Water Content (KF)	≤ 0.1%

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