You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N'-[(E)-5,5,6,6,7,7,7-heptafluoro-4-oxohept-2-en-2-yl]-2-(4-nitrophenyl)acetohydrazide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H12F7N3O4
assistant