octamethylcyclotetrasiloxane (d4 silicone) molecule. 3d rendering. atoms are represented as spheres with conventional color coding

octamethylcyclotetrasiloxane d4 cyclotetrasiloxane siloxane tetrasiloxane organosilicon viscous liquid cyclomethicone environment pollution pervasive marine bioaccumulative bioaccumulation risk health gloss cosmetic silicon molecule atoms atomic model molecular compound composition chemical chemistry 3d rendering science scientific