You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-[[4-(3,5-dimethylpyrazol-1-yl)phenyl]methylsulfanyl]-5-(4-methylphenyl)-1H-1,2,4-triazole into its molecular formula.
user
C21H21N5S
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