You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4Z)-4-[[3-bromo-5-ethoxy-4-[(4-iodophenyl)methoxy]phenyl]methylidene]-2-(4-methylphenyl)-1,3-oxazol-5-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H21BrINO4
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