CAS 27306-78-1 appears in our catalog under these names: Polyalkyleneoxide modified heptamethyltrisiloxane MW 2000, 2-[Methoxy(polyethyleneoxy)propyl]heptamethyl-trisiloxane Tech grade 90%, 90%. Offered by: Ambeed, Fluorochem. Available pack sizes: 25g, 5g, 10g, 100g.