You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl N-[[3-(5-nitrofuran-2-yl)-1-(3-nitrophenyl)pyrazol-4-yl]methylideneamino]carbamate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H14N6O7
assistant