... , Octamethylcyclotetrasiloxane 1. CAS No.: 556-67-2 2. Purity: >99% 3. Similar with Dow Corning PMX-0244 Wanda Siloxane SeriesChemical ... 2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasiloxane1. Properties:Chemical Name: Octamethylcyclotetrasiloxane( ... [25]: 0.956Refractive Index [25]:1.3968Surface tension:17.8 mN/MPurity:>=99% Color and Appearance:Colorless clear oily liquidSimilar with Dow ...