CAS Number: 75-78-5
Linear Formula: (CH3)2SiCl2
Molecular Weight: 129.06
IUPAC Name: Dichlorodimethylsilane
Other Names: Dichlorodimethylsilane, dichlorodimethylsilicon, dimethylsilicon dichloride, dimethylsilane dichloride, DMDCS
Dimethyldichlorosilane is a tetrahedral, organosilicon compound with the formula Si(CH3)2Cl2. At room temperature it is a colorless liquid that readily reacts with water to form both linear and cyclic Si-O chains.
Dimethyldichlorosilane is made on an industrial scale as the principal precursor to dimethylsilicone and polysilane compounds. The main purpose of dimethyldichlorosilane is for use in the synthesis of silicones, an industry that was valued at more than $10 billion per year in 2005. It is also employed in the production of polysilanes, which in turn are precursors to silicon carbide.
In practical uses, dichlorodimethylsilane can be used as a coating on glass to avoid the adsorption of micro-particles.
