You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[10,20-bis[2-(4-nitrophenyl)ethynyl]-15-[2-tri(propan-2-yl)silylethynyl]-21,24-dihydroporphyrin-5-yl]ethynyl-tri(propan-2-yl)silane The above is the IUPAC name of a molecule. Write its molecular formula.
user
C58H60N6O4Si2
assistant