You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(1,3-dioxoisoindol-2-yl)ethyl (2E,4E,6E)-7-[4,4-bis(methylsulfanyl)-2,3-dihydrochromen-6-yl]-3-methylocta-2,4,6-trienoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H31NO5S2
assistant