LS-651 1,3,5-Tris [ (3,3,3-Trifluoropropyl) Methyl] Cyclotrisiloxane/D3F
CAS NO. 2374-14-3
Silfluo LS-651 (D3F) is 1,3,5-Tris[(3,3,3-trifluoropropyl)methyl]cyclotrisiloxane, a fluorine-containing cyclic siloxane trimer.
The molecule contains three trifluoropropyl groups and three methyl groups on a six-membered Si–O ring structure.
Appears as a colorless crystalline solid below 30°C; melts to a clear liquid above 30°C.
Used as primary monomer for ring-opening polymerization of fluorosilicone fluids and fluorosilicone elastomer bases (FVMQ), and as comonomer for introducing trifluoropropyl functionality into siloxane copolymers.
methyl]cyclotrisiloxane-Silfluo-LS-651_2374-14-3.webp)