Description

4,7-Diethoxy-4,7-Dimethyl-3,8-Dioxa-4,7-Disiladecane is a specialized organosilicon compound, CAS NO 18043-74-8, valued for its role as a versatile chemical building block and coupling agent. Its molecular structure makes it a critical intermediate in the synthesis of advanced silicone polymers and surface-modifying materials. This product is essential for manufacturers in the silicone elastomer, adhesive, and specialty coatings industries seeking to enhance material properties and processability.

Application

• As a key crosslinking agent or chain extender in the production of high-performance silicone resins and rubbers.
• As a surface treatment agent for inorganic fillers (e.g., silica, glass) to improve dispersion and compatibility in polymer matrices.
• As a precursor or intermediate in the synthesis of more complex organosilicon compounds for electronics and release coatings.
• In the formulation of specialty adhesives and sealants to modify rheology and enhance adhesion to various substrates.
• For research and development of novel hybrid organic-inorganic materials (ORMOSILs) with tailored properties.
• Potential use as a moisture scavenger or stabilizer in moisture-sensitive chemical systems.

Basic Information

Product Name	4,7-Diethoxy-4,7-Dimethyl-3,8-Dioxa-4,7-Disiladecane
CAS No.	18043-74-8
Molecular Formula	C12H30O4Si2
Molecular Weight	294.54 g/mol
Synonyms	1,2-Bis(diethoxymethylsilyl)ethane; Bis(diethoxymethylsilyl)ethane; 1,1'-(Ethane-1,2-diyl)bis(diethoxymethylsilane); Ethane-1,2-diylbis(diethoxymethylsilane); Diethoxymethylsilylethyl(diethoxymethyl)silane; Ethylenebis(diethoxymethylsilane); Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our production of 4,7-Diethoxy-4,7-Dimethyl-3,8-Dioxa-4,7-Disiladecane adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance and regulatory needs.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from heat, sparks, and open flame.

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 (n20D)	1.410 - 1.415
Density (20°C)	0.90 - 0.95 g/mL

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