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 2-chloro-N-[3-chloro-5-(oxolan-3-yloxy)phenyl]-5-(1,1-dioxo-1,2-thiazolidin-2-yl)benzamide .
user
C20H20Cl2N2O5S
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