You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(2-chlorophenyl)-N-(2,3-dihydro-1,4-benzodioxin-6-yl)-1H-pyrazole-5-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H14ClN3O3
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