You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-3-(furan-2-yl)-2-phenyl-N-(2,2,6-trimethyl-3,4-dihydrochromen-4-yl)prop-2-enamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H25NO3
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