Description

Diacetoxydimethylsilane is a versatile organosilicon compound that serves as a key intermediate in the synthesis of silicone polymers and other functional materials. Its bifunctional nature, featuring both hydrolyzable acetoxy groups and stable methyl groups, makes it valuable for introducing dimethylsiloxane units into complex chemical architectures. This product is essential for manufacturers in the silicone, pharmaceutical, and advanced materials sectors seeking reliable precursors for cross-linking, surface modification, and controlled polymerization reactions.

Application

• Silicone Cross-linking Agent: Used as a moisture-curable cross-linker in room-temperature vulcanizing (RTV) silicone sealants and adhesives.
• Surface Treatment Agent: Imparts hydrophobic properties to inorganic surfaces like glass, silica, and metals for improved water repellency.
• Polymer Intermediate: A key monomer or chain extender in the synthesis of specific polysiloxanes and silicone copolymers.
• Pharmaceutical Synthesis: Employed as a protecting group or silylating agent in the synthesis of complex organic molecules and active pharmaceutical ingredients (APIs).
• Adhesion Promoter: Enhances the bonding between organic polymers and inorganic substrates in composite materials.
• Precursor for Specialty Silanes: Serves as a starting material for the synthesis of other functional dimethylsilane derivatives.

Basic Information

Product Name	Diacetoxydimethylsilane
CAS No.	2182-66-3
Molecular Formula	C6H12O4Si
Molecular Weight	176.24 g/mol
Synonyms	Dimethyldiacetoxysilane; Diacetoxydimethylsilane; Acetic acid, dimethylsilylene ester; Dimethylsilanediol diacetate; Dimethylbis(acetoxy)silane; Bis(acetoxy)dimethylsilane; Dimethyl diacetoxysilane; Silane, diacetoxydimethyl-
EINECS	218-552-0

Quality Control

Our Diacetoxydimethylsilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay and impurity profiling, to ensure it meets precise specifications for industrial and research applications. A Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with every shipment to guarantee traceability and consistency.

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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation by atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.05 - 1.10 g/cm³
Refractive Index (n20D)	1.405 - 1.415

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