You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-[(Z)-[[2-(5-oxo-1,2-dihydropyrazol-3-yl)acetyl]hydrazinylidene]methyl]phenoxy]acetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H14N4O5
assistant