You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule [2-[3-butan-2-yl-4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)phenyl]-1,1,1,3,3,3-hexafluoropropan-2-yl] tert-butyl carbonate ?
user
C21H22F12O4
assistant