... 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: C8H24O4Si4Molecular Weight:296.61Boiling Point ... oily liquid2. Applications:D4, Octamethylcyclotetrasiloxane, CAS No.: 556-67-2 is a base fluid in a number of personal ...