... 2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasiloxane1. Properties:Chemical Name: Octamethylcyclotetrasiloxane(D4 ... ) CAS No.:556-67-2EINECS No.:209-136-7Formula ... Colorless clear oily liquid2. Applications:D4, Octamethylcyclotetrasiloxane, CAS No.: 556-67-2 is a base fluid in a number of personal ...