"Lipofectamineâ„¢ 2000
Transfection Reagent is a proprietary formulation......"
....the important term being "proprietary". It would be interesting to check whether they have a patent for the compound - if so you'll see more details on the composition. However, it could be being held as a corporate secret, in which case there will be no patent info - just a trade mark registration on the name.