You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(8R)-8-(4-hydroxy-3-methoxyphenyl)-11-(4-nitrophenyl)-5,10,12-trioxo-2,6-dithia-4,11-diazatricyclo[7.3.0.03,7]dodec-3(7)-en-4-yl]-N-(4-methoxyphenyl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H24N4O9S2
assistant