You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by ethyl (2E,5S)-5-(2-chlorophenyl)-2-[[3-[(3,4-dichlorophenyl)methoxy]phenyl]methylidene]-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate ?
user
C30H23Cl3N2O4S
assistant