You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-(3-chloro-2-methylphenyl)-3-cyclopropyl-5-(1-methylpyrrolidin-3-yl)-1,2,4-triazole by IUPAC nomenclature, provide its molecular formula.
user
C17H21ClN4
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