You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-3-[3-chloro-4-[2-(3-chloro-4-methylanilino)-2-oxoethoxy]phenyl]-2-cyano-N-(4-hydroxyphenyl)prop-2-enamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H19Cl2N3O4
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