... . A volatile octamethylcyclotetrasiloxane fluid Wanda Siloxane SeriesChemical Name: D4, OctamethylcyclotetrasiloxaneSynonym: Cyclic dimethylsiloxane tetramer; 2,2,4,4,6,6,8,8-Octamethyl-1 ... and Appearance:Colorless clear oily liquid2. Applications:D4, Octamethylcyclotetrasiloxane, CAS No.: 556-67-2 is a base fluid in a number of ...