You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-chloro-2-(1,2,4-triazol-1-yl)phenyl]-2-(4-nitroimidazol-1-yl)acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C13H10ClN7O3
assistant