1,3,5,7-Tetramethylcyclotetrasiloxane  is a reactive siloxane containing silicon-hydrogen bonds that can undergo additional reactions with unsaturated olefins. It can be used to prepare various polymethylhydrogensiloxanes and functional group-modified polysiloxanes with specific hydrogen content and the required number of chain segments.

1,3,5,7-Tetramethylcyclotetrasiloxane is used to synthesize room temperature vulcanized silicone rubber, a special crosslinking agent for addition molding liquid silicone rubber; synthetic side-chain polysiloxane liquid crystal polymer and various functional side chains Modified silicone oil. High purity can also be used as a precursor for plasma vapor deposition in the electronics industry to form silicon dioxide and silicon carbide insulating films. It is used to synthesize organosilicon intermediates and polymer compounds to provide active crosslinking points. It is one of the indispensable raw materials for preparing silicone rubber.