You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-[(6-chloropyridin-3-yl)methyl]-1-[8-[5-[(6-chloropyridin-3-yl)methyl]-2-nitroiminoimidazolidin-1-yl]octyl]imidazolidin-2-ylidene]nitramide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H34Cl2N10O4
assistant