You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-oxo-N-[(2-oxo-3H-1,3-benzoxazol-6-yl)methyl]-4,5-dihydro-1H-pyridazine-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C13H12N4O4
assistant