CAS 920-66-1 appears in our catalog under these names: Sevoflurane Impurity 3, 1,1,1,3,3,3-Hexafluoro-2-propanol, >95% (GC), 1,1,1,3,3,3-Hexafluoro-2-propanol, 1,1,1,3,3,3-Hexafluoropropan-2-ol, 1,1,1,3,3,3–Hexafluoro–2–propanol. Offered by: Chemat Brand, TRC, Dr. Ehrenstorfer, Mikromol, GLPBio. Available pack sizes: on request, 25g, 500g, 5g, 1g, 100mg, 100g, 250g.