You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 4-[(14Z)-14-[(3-ethoxy-4-hydroxy-5-iodophenyl)methylidene]-13-oxo-15-thia-12,17-diazatetracyclo[8.7.0.02,7.012,16]heptadeca-1(10),2,4,6,16-pentaen-11-yl]benzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H25IN2O5S
assistant