... runhechemical.com,3,5,7-tetrahydro-1,3,5,7-tetramethyl-clotetrasiloxaneFormula: C4H16O4Si4Molecular weight: 240.51CAS: 2370-88-9Character ... %Visosity: 1-2csBoiling point: 135°CPerformance and Usage:Tetramethyl-clotetrasiloxane, is an active siloxane with Si-H bond ... in Electricity industries,to form SiO2,SiC insulating film. Tetramethyl-clotetrasiloxane is also good impregnant of photolectric material. ...