D4, Octamethylcyclotetrasiloxane 1. CAS No.: 556-67-2 2. Purity: >99% 3. A volatile octamethylcyclotetrasiloxane ... tetraoxatetrasiloxane1. Properties:Chemical Name: Octamethylcyclotetrasiloxane(D4) CAS No.:556-67-2EINECS No.:209-136-7Formula: C8H24O4Si4Molecular Weight:296.61Boiling ... oily liquid2. Applications:D4, Octamethylcyclotetrasiloxane, CAS No.: 556-67-2 is a base fluid in a number of personal ...