You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
zinc;methyl 3-[18-(3-methoxy-3-oxopropyl)-3,7,12,17-tetramethyl-8,13-bis(oxiran-2-yl)porphyrin-21,24-diid-2-yl]propanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C36H36N4O6Zn
assistant