You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(methylamino)-2-(1-methylpyrazol-4-yl)-N-[[4-propan-2-yloxy-2-(trifluoromethyl)phenyl]methyl]acetamide;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H24ClF3N4O2
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