You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-(4-propyl-1,2,4-triazol-3-yl)-1-[(5-thiophen-2-yl-1H-pyrazol-4-yl)methyl]piperidine into its molecular formula.
user
C18H24N6S
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