You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,1,1,2,2,3,3-heptafluoro-4-[2,2,3,3,4,4,4-heptafluorobutoxy(methyl)phosphoryl]oxybutane The above is the IUPAC name of a molecule. Write its molecular formula.
user
C9H7F14O3P
assistant