You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-(4-hydroxy-5-methoxycyclohexa-2,4-dien-1-yl)-1-(2-hydroxyphenyl)prop-2-en-1-one by IUPAC nomenclature, provide its molecular formula.
user
C16H16O4
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