Description

Disiloxane, Methoxypentamethyl- is a specialized organosilicon compound characterized by its unique siloxane backbone and methoxy functionality. This chemical is valued for its role as a versatile intermediate and functionalizing agent in advanced material synthesis. It is primarily sought after by R&D laboratories and industrial manufacturers in the silicone polymer, electronics, and specialty chemical sectors for creating modified siloxane structures.

Application

• Silicone Polymer Modification: Acts as a functional monomer or chain terminator to introduce methoxy groups, altering polymer properties like reactivity, solubility, and surface characteristics.
• Surface Treatment Agent: Used in the formulation of coatings and primers to enhance adhesion between organic materials and inorganic substrates like glass or metal.
• Electronics Industry: Serves as a precursor or additive in the production of dielectric materials, encapsulants, or photoresists for semiconductor manufacturing.
• Crosslinking Agent: Employed in room-temperature vulcanizing (RTV) silicone rubbers and sealants to control cure rates and final network properties.
• Laboratory Reagent: Utilized in organic and organometallic synthesis as a protecting group or a building block for complex molecule construction.
• Specialty Intermediates: Key starting material for synthesizing more complex siloxane-based compounds with tailored functionalities for niche applications.

Basic Information

Product Name	Disiloxane, Methoxypentamethyl-
CAS No.	18156-38-2
Molecular Formula	C6H18O2Si2
Molecular Weight	178.38 g/mol
Synonyms	Methoxypentamethyldisiloxane; Pentamethylmethoxydisiloxane; 1-Methoxy-1,1,3,3,3-pentamethyldisiloxane; Disiloxane, 1-methoxy-1,1,3,3,3-pentamethyl-; Methoxy-Pentamethyl-Disiloxane; MeOSiMe2-O-SiMe3; MD'M (Methoxy-terminated); (Methoxydimethylsilyloxy)trimethylsilane
EINECS	Contact for details

Quality Control

Our Disiloxane, Methoxypentamethyl- is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and identity confirmation, to ensure it meets precise specifications. Certificates of Analysis (COA) detailing batch-specific results are provided to guarantee traceability and compliance with your application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and maintain product integrity. Recommended storage temperature is 2-25°C.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (at 20°C)	0.82 - 0.86 g/mL
Refractive Index (n20D)	1.375 - 1.385

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