You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule ethyl 2-chloro-5-[[2-[(5Z)-5-[[3-methoxy-4-(2-nitrophenyl)sulfonyloxyphenyl]methylidene]-2,4-dioxo-1,3-thiazolidin-3-yl]acetyl]amino]benzoate .
user
C28H22ClN3O11S2
assistant