You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(Z)-(3-ethoxy-4-hydroxy-5-iodophenyl)methylideneamino]-2,3-dihydro-1,4-benzodioxine-6-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H17IN2O5
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