1. 
   Tetramethylsilane
   Tetramethylsilane (abbreviated as TMS) is the chemical compound with the formula Si(CH3)4. It is the simplest tetraorganosilane. Like all silanes, the TMS framework is tetrahedral. TMS is a building block in organometallic chemistry but also finds use in diverse niche applications. == Synthesis and...
   Found op http://en.wikipedia.org/wiki/Tetramethylsilane
   
   
2. 
   tetramethylsilane
   (from the article `chemical compound`) ...The horizontal scale does not show proton resonances in simple wavelength units. Instead, the position of each peak is normally measured relative ...
   Found op http://www.britannica.com/eb/a-z/t/30
   
   

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