You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2E)-2-[7-(1-methylpyrazol-4-yl)-3,4-dihydro-2H-naphthalen-1-ylidene]acetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H16N2O2
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