You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-(4-bromo-3,5-dimethylpyrazol-1-yl)-N-[1-[(3-chlorophenoxy)methyl]pyrazol-4-yl]propanamide .
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C18H19BrClN5O2
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