You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (E)-3-[5-(3-chloro-4-methylphenyl)furan-2-yl]-N-[(5-chloropyridin-2-yl)carbamothioyl]prop-2-enamide into its molecular formula.
user
C20H15Cl2N3O2S
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