CAS 9006-65-9 (Dimethicone)
CAS 9006-65-9 is the Chemical Abstracts Service registry number for Dimethicone (Polydimethylsiloxane, PDMS) — the linear silicone polymer used as the foundation of cosmetic silicone chemistry. INCI name: Dimethicone. The same CAS number applies across all viscosity grades from 5 cSt to 300,000 cSt+.