You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(7,7,8,8,9,9,10,10,10-nonafluorodecyl)-2-[[[2-(7,7,8,8,9,9,10,10,10-nonafluorodecyl)phenyl]-diphenylmethoxy]-diphenylmethyl]benzene is the IUPAC name of a molecule. Please give its molecular formula.
user
C58H52F18O
assistant