You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-hexadecafluoro-1-(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-hexadecafluorononoxy)nonane The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H6F32O
assistant