You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-N-[5-[(2-chlorophenyl)methylsulfanyl]-4-ethyl-1,2,4-triazol-3-yl]-3-(2,5-dimethoxyphenyl)prop-2-enamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H23ClN4O3S
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