Description

Methoxypentamethyldisilane is a specialized organosilicon compound, CAS NO 18107-29-4, valued for its role as a versatile silylating agent and synthetic intermediate. Its structure, featuring a methoxy group and multiple methyl substituents on a disilane backbone, provides unique reactivity for introducing silicon-based protecting groups or modifying surface properties. This chemical is essential for manufacturers and researchers in advanced material science and fine chemical synthesis who require precise molecular control. It is particularly critical for developing silicone polymers, surface coatings, and high-purity electronic materials.

Application

• Silylating Agent: Used to introduce trimethylsilyl (TMS) or related groups in organic synthesis for the protection of alcohols, amines, and other sensitive functional groups.
• Precursor for Silicones: Serves as a building block or cross-linking agent in the synthesis of specialized silicone oils, resins, and elastomers.
• Surface Modification: Applied in the functionalization of silica, glass, or other inorganic surfaces to alter hydrophobicity, adhesion, or compatibility.
• Electronics & Semiconductor Industry: Utilized in chemical vapor deposition (CVD) or as a precursor for silicon-containing thin films and dielectric materials.
• Pharmaceutical Intermediates: Employed in the synthesis of complex drug molecules where silicon incorporation or specific protection strategies are required.
• Adhesive & Sealant Formulations: Acts as a coupling agent or adhesion promoter in high-performance silicone-based adhesives and sealants.
• Research & Development: A key reagent in academic and industrial R&D for exploring new organosilicon chemistry and material properties.

Basic Information

Product Name	Methoxypentamethyldisilane
CAS No.	18107-29-4
Molecular Formula	C6H18OSi2
Molecular Weight	162.38 g/mol
Synonyms	Disilane, methoxypentamethyl-; Pentamethyldisiloxymethane; Methoxy(pentamethyl)disilane; (Methoxydimethylsilyl)trimethylsilane; 1-Methoxy-1,1,2,2,2-pentamethyldisilane; MeOSiMe2SiMe3; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our Methoxypentamethyldisilane is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing assay, identity, and impurity profiles. Our quality systems are designed to meet the stringent requirements of the pharmaceutical and electronics industries, supporting your regulatory compliance and process reliability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its highly volatile nature, ensure containers are securely sealed and stored upright. Keep away from heat, sparks, and open flame. Inert atmosphere (nitrogen or argon) storage is recommended for long-term preservation to prevent potential oxidation or moisture uptake.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Density (at 20°C)	0.78 - 0.82 g/mL
Refractive Index (n20D)	1.390 - 1.400

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