You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[10-[(1,3-dioxo-3a,4,5,6,7,7a-hexahydroinden-2-ylidene)amino]-7,7-dimethyl-3,11-dithiatricyclo[6.3.0.02,6]undeca-1(8),2(6),4,9-tetraen-4-yl]methylidene]indene-1,3-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H23NO4S2
assistant