You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[(E)-2-[(3E)-2-chloro-3-[(2Z)-2-(2-phenylthiochromen-4-ylidene)ethylidene]cyclohexen-1-yl]ethenyl]-2-phenylthiochromenylium;perchlorate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C40H30Cl2O4S2
assistant