You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-cyclopentyl-2-[[5-(4-methoxyphenyl)-4-pyrrol-1-yl-1,2,4-triazol-3-yl]sulfanyl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H23N5O2S
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