You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[(5-cyclopropyl-1-phenyl-1,2,4-triazol-3-yl)sulfanyl]-N-(4-methyl-2-nitrophenyl)acetamide into its molecular formula.
user
C20H19N5O3S
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